This is information on a product in full production.
February 2016 DocID2143 Rev 33 1/59
L78
Positive voltage regulator ICs
Datasheet
-
production data
Features
•Output current up to 1.5 A
•Output voltages of 5; 6; 8; 8.5; 9; 12; 15; 18;
24 V
•Thermal overload protection
•Short circuit protection
•Output transition SOA protection
•2 % output voltage tolerance (A version)
•Guaranteed in extended temperature range
(A version)
Description
The L78 series of three-terminal positive
regulators is available in TO-220, TO-220FP,
D²PAK and DPAK packages and several fixed
output voltages, making it useful in a wide range
of applications.
These regulators can provide local on-card
regulation, eliminating the distribution problems
associated with single point regulation. Each type
embeds internal current limiting, thermal shut-
down and safe area protection, making it
essentially indestructible. If adequate heat sinking
is provided, they can deliver over 1 A output
current. Although designed primarily as fixed
voltage regulators, these devices can be used
with external components to obtain adjustable
voltage and currents.
TO-220FPTO-220
D²PAK
DPAK
www.st.com
Contents L78
2/59 DocI D2143 Rev 33
Contents
1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4 Test circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
6 Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
6.1 Design consideration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
7 Typical performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
8 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
8.1 T O-220 (dual gauge) package info rmation . . . . . . . . . . . . . . . . . . . . . . . . 36
8.2 TO-220 (single gauge) package information . . . . . . . . . . . . . . . . . . . . . . 38
8.3 T O-220FP package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
8.4 TO-220 packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
8.5 DPAK package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
8.6 DPAK packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
8.7 D²PAK (SMD 2L STD-ST) type A package information . . . . . . . . . . . . . . 48
8.8 D²PAK (SMD 2L Wooseok-subcon.) package information . . . . . . . . . . . . 50
8.9 D²PAK packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
9 Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
10 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
DocID2143 Rev 33 3/59
L78 Diagram
59
1 Diagram
Figure 1. Block diagram
Pin configuration L78
4/59 DocI D2143 Rev 33
2 Pin configuration
Figure 2. Pin connections (top view)
72)3
72
'ð3$. '3$.
Figure 3. Schematic diag ram
DocID2143 Rev 33 5/59
L78 Maximum ratings
59
3 Maximum ratings
Note: Absolute maximum ratings are those values beyond which damage to the device may occur.
Functional operation under these condition is not implied.
Table 1. Absolute maximum ratings
Symbol Parameter Value Unit
V
I
DC input voltage for V
O
= 5 to 18 V 35 V
for V
O
= 20, 24 V 40
I
O
Output current Internally limited
P
D
Power dissipation Internally limited
T
STG
Storage temperature range -65 to 150 °C
T
OP
Operating junction temperature range for L78xxC, L78xxAC 0 to 125 °C
for L78xxAB -40 to 125
Table 2. Thermal data
Symbol Parameter D²PAK DPAK TO-220 TO-220FP Unit
R
thJC
Thermal resistance junction-case 3 8 5 5 °C/W
R
thJA
Thermal resistance junction-ambient 62.5 100 50 60 °C/W
Figure 4. Application circuits
Test circuits L78
6/59 DocI D2143 Rev 33
4 Test circuits
Figure 5. DC parameter
Figure 6. Load regulation
Figure 7. Ripple rejection
DocID2143 Rev 33 7/59
L78 Electrical ch ara ct er istics
59
5 Electrical characteristics
V
I
= 10 V, I
O
= 1 A, T
J
= 0 to 125 °C (L7805AC), T
J
= -40 to 125 °C (L7805AB), unl ess
otherwise specified
(a)
.
a. Minimum load current for regulation is 5 mA.
Table 3. Electrical characteristics of L7805A
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
O
Output voltage T
J
= 25°C 4.9 5 5.1 V
V
O
Output voltage I
O
= 5 mA to 1 A, V
I
= 7.5 to 18 V 4.8 5 5.2 V
V
O
Output voltage I
O
= 1 A, V
I
= 18 to 20 V, T
J
= 25°C 4 .8 5 5.2 V
ΔV
O (1)
Line regulation
V
I
= 7.5 to 25 V, I
O
= 500 mA, T
J
= 25°C 7 50 mV
V
I
= 8 to 12 V 10 50 mV
V
I
= 8 to 12 V, T
J
= 25°C 2 25 mV
V
I
= 7.3 to 20 V, T
J
= 25°C 7 50 mV
ΔV
O (1)
Load regulation
I
O
= 5 mA t o 1 A 25 100
mVI
O
= 5 mA to 1.5 A, T
J
= 25°C 30 100
I
O
= 250 to 750 mA 8 50
I
q
Quiescent current T
J
= 25°C 4.3 6 mA
6mA
ΔI
q
Quiescent current change
V
I
= 8 to 23 V, I
O
= 500 mA 0.8 mA
V
I
= 7.5 to 20 V, T
J
= 25°C 0.8 mA
I
O
= 5 mA to 1 A 0.5 mA
SVR Supply voltage rejection V
I
= 8 to 18 V, f = 120 Hz, I
O
= 500 mA 68 dB
V
d
Dropout voltage I
O
= 1 A, T
J
= 25°C 2 V
eN Output noise voltage T
A
= 25°C, B =10 Hz to 100 kHz 10 µV/V
O
R
O
Output resistance f = 1 kHz 17 mΩ
I
sc
Short circuit current V
I
= 35 V, T
A
= 25°C 0.2 A
I
scp
Short circuit peak current T
J
= 25°C 2.2 A
ΔV
O
/ΔT Output voltage drift -1.1 mV/°C
1. Load and line regulation are specified at const ant junction temperature. Changes in V
O
due to heating effects must be
taken into account separately. Pulse testing with low duty cycle is used.
Ele ctrical characteristics L78
8/59 DocI D2143 Rev 33
V
I
= 11 V, I
O
= 1 A, T
J
= 0 to 125 °C (L7806AC), T
J
= -40 to 125 °C (L7806AB), unless
otherwise specified
(b)
.
b. Minimum load current for regulation is 5 mA.
Table 4. Electrical characteristics of L7806A
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
O
Output voltage T
J
= 25°C 5.88 6 6.12 V
V
O
Output voltage I
O
= 5 mA to 1 A, V
I
= 8.6 to 19 V 5.76 6 6.24 V
V
O
Output voltage I
O
= 1 A, V
I
= 19 to 21 V, T
J
= 25°C 5.76 6 6.24 V
ΔV
O (1)
Line regulation
V
I
= 8.6 to 25 V, I
O
= 500 mA, T
J
= 25°C 9 60 mV
V
I
= 9 to 13 V 11 60 mV
V
I
= 9 to 13 V, T
J
= 25°C 3 30 mV
V
I
= 8.3 to 21 V, T
J
= 25°C 9 60 mV
ΔV
O (1)
Load regulation
I
O
= 5 mA t o 1 A 25 100
mVI
O
= 5 mA to 1.5 A, T
J
= 25°C 30 100
I
O
= 250 to 750 mA 10 50
I
q
Quiescent current T
J
= 25°C 4.3 6 mA
6mA
ΔI
q
Quiescent current change
V
I
= 9 to 24 V, I
O
= 500 mA 0.8 mA
V
I
= 8.6 to 21 V, T
J
= 25°C 0.8 mA
I
O
= 5 mA to 1 A 0.5 mA
SVR Supply voltage rejection V
I
= 9 to 19 V, f = 120 Hz, I
O
= 500 mA 65 dB
V
d
Dropout voltage I
O
= 1 A, T
J
= 25°C 2 V
eN Output noise voltage T
A
= 25°C, B =10 Hz to 100 kHz 10 µV/V
O
R
O
Output resistance f = 1 kHz 17 mΩ
I
sc
Short circuit current V
I
= 35 V, T
A
= 25°C 0.2 A
I
scp
Short circuit peak current T
J
= 25°C 2.2 A
ΔV
O
/ΔT Output voltage drift -0.8 mV/°C
1. Load and line regulation are specified at const ant junction temperature. Changes in V
O
due to heating effects must be
taken into account separately. Pulse testing with low duty cycle is used.
DocID2143 Rev 33 9/59
L78 Electrical ch ara ct er istics
59
V
I
= 14 V, I
O
= 1 A, T
J
= 0 to 125 °C (L7808AC), T
J
= -40 to 125 °C (L7808AB), unl ess
otherwise specified
(c)
.
c. Minimum load current for regulation is 5 mA.
Table 5. Electrical characteristics of L7808A
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
O
Output voltage T
J
= 25°C 7.84 8 8.16 V
V
O
Output voltage I
O
= 5 mA to 1 A, V
I
= 10.6 to 21 V 7.7 8 8.3 V
V
O
Output voltage I
O
= 1 A, V
I
= 21 to 23 V, T
J
= 25°C 7 .7 8 8.3 V
ΔV
O (1)
Line regulation
V
I
= 10.6 to 25 V, I
O
= 500 mA,
T
J
= 25°C 12 80 mV
V
I
= 11 to 17 V 15 80 mV
V
I
= 11 to 17 V, T
J
= 25°C 5 40 mV
V
I
= 10.4 to 23 V, T
J
= 25°C 12 80 mV
ΔV
O (1)
Load regulation
I
O
= 5 mA t o 1 A 25 100
mVI
O
= 5 mA to 1.5 A, T
J
= 25°C 30 100
I
O
= 250 to 750 mA 10 50
I
q
Quiescent current T
J
= 25°C 4.3 6 mA
6mA
ΔI
q
Quiescent current change
V
I
= 11 to 23 V, I
O
= 500 mA 0.8 mA
V
I
= 10.6 to 23 V, T
J
= 25°C 0.8 mA
I
O
= 5 mA to 1 A 0.5 mA
SVR Supply voltage rejection V
I
= 11.5 to 21.5 V, f = 120 Hz,
I
O
= 500 mA 62 dB
V
d
Dropout voltage I
O
= 1 A, T
J
= 25°C 2 V
eN Output noise voltage T
A
= 25°C, B =10 Hz to 100 kHz 10 µV/V
O
R
O
Output resistance f = 1 kHz 18 mΩ
I
sc
Short circuit current V
I
= 35 V, T
A
= 25°C 0.2 A
I
scp
Short circuit peak current T
J
= 25°C 2.2 A
ΔV
O
/ΔT Output voltage drift -0.8 mV/°C
1. Load and line regulation are specified at const ant junction temperature. Changes in V
O
due to heating effects must be
taken into account separately. Pulse testing with low duty cycle is used.
Ele ctrical characteristics L78
10/59 DocID2143 Rev 33
V
I
= 15 V, I
O
= 1 A, T
J
= 0 to 125 °C (L7809AC), T
J
= -40 to 125 °C (L7809AB), unl ess
otherwise specified
(d)
.
d. Minimum load current for regulation is 5 mA.
Table 6. Electrical characteristics of L7809A
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
O
Output voltage T
J
= 25°C 8.82 9 9.18 V
V
O
Output voltage I
O
= 5 mA to 1 A, V
I
= 10.6 to 22 V 8.65 9 9.35 V
V
O
Output voltage I
O
= 1 A, V
I
= 22 to 24 V, T
J
= 25°C 8.65 9 9.35 V
ΔV
O (1)
Line regulation
V
I
= 10.6 to 25 V, I
O
= 500 mA,
T
J
= 25°C 12 90 mV
V
I
= 11 to 17 V 15 90 mV
V
I
= 11 to 17 V, T
J
= 25°C 5 45 mV
V
I
= 11.4 to 23 V, T
J
= 25°C 12 90 mV
ΔV
O (1)
Load regulation
I
O
= 5 mA t o 1 A 25 100
mVI
O
= 5 mA to 1.5 A, T
J
= 25°C 30 100
I
O
= 250 to 750 mA 10 50
I
q
Quiescent current T
J
= 25°C 4.3 6 mA
6mA
ΔI
q
Quiescent current change
V
I
= 11 to 25 V, I
O
= 500 mA 0.8 mA
V
I
= 10.6 to 23 V, T
J
= 25°C 0.8 mA
I
O
= 5 mA to 1 A 0.5 mA
SVR Supply voltage rejection V
I
= 11.5 to 21.5 V, f = 120 Hz,
I
O
= 500 mA 61 dB
V
d
Dropout voltage I
O
= 1 A, T
J
= 25°C 2 V
eN Output noise voltage T
A
= 25°C, B =10 Hz to 100 kHz 10 µV/V
O
R
O
Output resistance f = 1 kHz 18 mΩ
I
sc
Short circuit current V
I
= 35 V, T
A
= 25°C 0.2 A
I
scp
Short circuit peak current T
J
= 25°C 2.2 A
ΔV
O
/ΔT Output voltage drift -0.8 mV/°C
1. Load and line regulation are specified at const ant junction temperature. Changes in V
O
due to heating effects must be
taken into account separately. Pulse testing with low duty cycle is used.
DocID2143 Rev 33 11/59
L78 Electrical ch ara ct er istics
59
V
I
= 19 V, I
O
= 1 A, T
J
= 0 to 125 °C (L7812AC), T
J
= -40 to 125 °C (L7812AB), unl ess
otherwise specified
(e)
.
e. Minimum load current for regulation is 5 mA.
Table 7. Electrical characteristics of L7812A
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
O
Output voltage T
J
= 25°C 11.75 12 12.25 V
V
O
Output voltage I
O
= 5 mA to 1 A, V
I
= 14.8 to 25 V 11.5 12 12.5 V
V
O
Output voltage I
O
= 1 A, V
I
= 25 to 27 V, T
J
= 25°C 11.5 12 12.5 V
ΔV
O (1)
Line regulation
V
I
= 14.8 to 30 V, I
O
= 500 mA,
T
J
= 25°C 13 120 mV
V
I
= 16 to 12 V 16 120 mV
V
I
= 16 to 12 V, T
J
= 25°C 6 60 mV
V
I
= 14.5 to 27 V, T
J
= 25°C 13 120 mV
ΔV
O (1)
Load regulation
I
O
= 5 mA t o 1 A 25 100
mVI
O
= 5 mA to 1.5 A, T
J
= 25°C 30 100
I
O
= 250 to 750 mA 10 50
I
q
Quiescent current T
J
= 25°C 4.4 6 mA
6mA
ΔI
q
Quiescent current change
V
I
= 15 to 30 V, I
O
= 500 mA 0.8 mA
V
I
= 14.8 to 27 V, T
J
= 25°C 0.8 mA
I
O
= 5 mA to 1 A 0.5 mA
SVR Supply voltage rejection V
I
= 15 to 25 V, f = 120 Hz, I
O
= 500 mA 60 dB
V
d
Dropout voltage I
O
= 1 A, T
J
= 25°C 2 V
eN Output noise voltage T
A
= 25°C, B = 10 Hz to 100 kHz 10 µV/V
O
R
O
Output resistance f = 1 kHz 18 mΩ
I
sc
Short circuit current V
I
= 35 V, T
A
= 25°C 0.2 A
I
scp
Short circuit peak current T
J
= 25°C 2.2 A
ΔV
O
/ΔT Output voltage drift -1 m V/°C
1. Load and line regulation are specified at const ant junction temperature. Changes in V
O
due to heating effects must be
taken into account separately. Pulse testing with low duty cycle is used.
Ele ctrical characteristics L78
12/59 DocID2143 Rev 33
V
I
= 23 V, I
O
= 1 A, T
J
= 0 to 125 °C (L7815AC), T
J
= -40 to 125 °C (L7815AB), unl ess
otherwise specified
(f)
.
f. Minimum load current for regulation is 5 mA.
Table 8. Electrical characteristics of L7815A
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
O
Output voltage T
J
= 25°C 14.7 15 15.3 V
V
O
Output voltage I
O
= 5 mA to 1 A, V
I
= 17.9 to 28 V 14.4 15 15.6 V
V
O
Output voltage I
O
= 1 A, V
I
= 28 to 30 V, T
J
= 25°C 14.4 15 15.6 V
ΔV
O (1)
Line regulation
V
I
= 17.9 to 30 V, I
O
= 500 mA,
T
J
= 25°C 13 150 mV
V
I
= 20 to 26 V 16 150 mV
V
I
= 20 to 26 V, T
J
= 25°C 6 75 mV
V
I
= 17.5 to 30 V, T
J
= 25°C 13 150 mV
ΔV
O (1)
Load regulation
I
O
= 5 mA t o 1 A 25 100
mVI
O
= 5 mA to 1.5 A, T
J
= 25°C 30 100
I
O
= 250 to 750 mA 10 50
I
q
Quiescent current T
J
= 25°C 4.4 6 mA
6mA
ΔI
q
Quiescent current change
V
I
= 17.5 to 30 V, I
O
= 500 mA 0.8 mA
V
I
= 17.5 to 30 V, T
J
= 25°C 0.8 mA
I
O
= 5 mA to 1 A 0.5 mA
SVR Supply voltage rejection V
I
= 18.5 to 28.5 V, f = 120 Hz,
I
O
= 500 mA 58 dB
V
d
Dropout voltage I
O
= 1 A, T
J
= 25°C 2 V
eN Output noise voltage T
A
= 25°C, B = 10Hz to 100 kHz 10 µV/V
O
R
O
Output resistance f = 1 kHz 19 mΩ
I
sc
Short circuit current V
I
= 35 V, T
A
= 25°C 0.2 A
I
scp
Short circuit peak current T
J
= 25°C 2.2 A
ΔV
O
/ΔT Output voltage drift -1 m V/°C
1. Load and line regulation are specified at const ant junction temperature. Changes in V
O
due to heating effects must be
taken into account separately. Pulse testing with low duty cycle is used.
DocID2143 Rev 33 13/59
L78 Electrical ch ara ct er istics
59
V
I
= 33 V, I
O
= 1 A, T
J
= 0 to 125 °C (L7824AC), T
J
= -40 to 125 °C (L7824AB), unl ess
otherwise specified
(g)
.
g. Minimum load current for regulation is 5 mA.
Table 9. Electrical characteristics of L7824A
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
O
Output voltage T
J
= 25°C 23.5 24 24.5 V
V
O
Output voltage I
O
= 5 mA to 1 A, V
I
= 27.3 to 37 V 23 24 25 V
V
O
Output voltage I
O
= 1 A, V
I
= 37 to 38 V, T
J
= 25°C 23 24 25 V
ΔV
O (1)
Line regulation
V
I
= 27 to 38 V, I
O
= 500 mA, T
J
= 25°C 31 240 mV
V
I
= 30 to 36 V 35 200 mV
V
I
= 30 to 36 V, T
J
= 25°C 14 120 mV
V
I
= 26.7 to 38 V, T
J
= 25°C 31 240 mV
ΔV
O (1)
Load regulation
I
O
= 5 mA t o 1 A 25 100
mVI
O
= 5 mA to 1.5 A, T
J
= 25°C 30 100
I
O
= 250 to 750 mA 10 50
I
q
Quiescent current T
J
= 25°C 4.6 6 mA
6mA
ΔI
q
Quiescent current change
V
I
= 27.3 to 38 V, I
O
= 500 mA 0.8 mA
V
I
= 27.3 to 38 V, T
J
= 25°C 0.8 mA
I
O
= 5 mA to 1 A 0.5 mA
SVR Supply voltage rejection V
I
= 28 to 38 V, f = 120 Hz, I
O
= 500 mA 54 dB
V
d
Dropout voltage I
O
= 1 A, T
J
= 25°C 2 V
eN Output noise voltage T
A
= 25°C, B = 10 Hz to 100 kHz 10 µV/V
O
R
O
Output resistance f = 1 kHz 20 mΩ
I
sc
Short circuit current V
I
= 35 V, T
A
= 25°C 0.2 A
I
scp
Short circuit peak current T
J
= 25°C 2.2 A
ΔV
O
/ΔT Output voltage drift -1.5 mV/°C
1. Load and line regulation are specified at const ant junction temperature. Changes in V
O
due to heating effects must be
taken into account separately. Pulse testing with low duty cycle is used.
Ele ctrical characteristics L78
14/59 DocID2143 Rev 33
Refer to the test circuits, T
J
= 0 to 125 °C, V
I
= 10 V, I
O
= 500 mA, C
I
= 0. 33 µF, C
O
= 0.1 µF
unless otherwise specified
(h)
.
h. Minimum load current for regulation is 5 mA.
Table 10. Electrical characteristics of L7805C
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
O
Output voltage T
J
= 25°C 4.8 5 5.2 V
V
O
Output voltage I
O
= 5 mA to 1 A, V
I
= 7 to 18 V 4.75 5 5.25 V
V
O
Output voltage I
O
= 1 A, V
I
= 18 to 20V, T
J
= 25°C 4.75 5 5.25 V
ΔV
O(1)
Line regulation V
I
= 7 to 25 V, T
J
= 25°C 3 100 mV
V
I
= 8 to 12 V, T
J
= 25°C 1 50
ΔV
O(1)
Load regulation I
O
= 5 mA to 1.5 A, T
J
= 25°C 100 mV
I
O
= 250 to 750 mA, T
J
= 25°C 50
I
d
Quiescent current T
J
= 25°C 8 mA
ΔI
d
Quiescent current change I
O
= 5 mA to 1 A 0.5 mA
V
I
= 7 to 23 V 0.8
ΔV
O
/ΔT Output voltage drift I
O
= 5 mA -1.1 mV/°C
eN Output noise voltage B = 10 Hz to 100 kHz, T
J
= 25°C 40 µV/V
O
SVR Supply voltage rejection V
I
= 8 to 18 V, f = 120 Hz 62 dB
V
d
Dropout voltage I
O
= 1 A, T
J
= 25°C 2 V
R
O
Output resistance f = 1 kHz 17 mΩ
I
sc
Short circuit current V
I
= 35 V, T
J
= 25°C 0.75 A
I
scp
Short circuit peak current T
J
= 25°C 2.2 A
1. Load and line regulation are specified at const ant junction temperature. Changes in V
O
due to heating effects must be
taken into account separately. Pulse testing with low duty cycle is used.
DocID2143 Rev 33 15/59
L78 Electrical ch ara ct er istics
59
Refer to the test circuits, T
J
= 0 to 125 °C, V
I
= 11 V, I
O
= 500 mA, C
I
= 0. 3 3 µF, C
O
= 0.1 µF
unless otherwise specified
(i)
.
i. Minimum load current for regulation is 5 mA.
Table 11. Electrical characteristics of L7806C
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
O
Output voltage T
J
= 25°C 5.75 6 6.25 V
V
O
Output voltage I
O
= 5 mA to 1 A, V
I
= 8 to 19 V 5.7 6 6.3 V
V
O
Output voltage I
O
= 1 A, V
I
= 19 to 21 V, T
J
= 25°C 5.7 6 6.3 V
ΔV
O(1)
Line regulation V
I
= 8 to 25 V, T
J
= 25°C 120 mV
V
I
= 9 to 13 V, T
J
= 25°C 60
ΔV
O(1)
Load regulation I
O
= 5 mA to 1.5 A, T
J
= 25°C 120 mV
I
O
= 250 to 750 mA, T
J
= 25°C 60
I
d
Quiescent current T
J
= 25°C 8 mA
ΔI
d
Quiescent current change I
O
= 5 mA to 1 A 0.5 mA
V
I
= 8 to 24 V 1.3
ΔV
O
/ΔT Output voltage drift I
O
= 5 mA -0.8 mV/°C
eN Output noise voltage B = 10 Hz to 100 kHz, T
J
= 25°C 45 µV/V
O
SVR Supply voltage rejection V
I
= 9 to 19 V, f = 120 Hz 59 dB
V
d
Dropout voltage I
O
= 1 A, T
J
= 25°C 2 V
R
O
Output resistance f = 1 kHz 19 mΩ
I
sc
Short circuit current V
I
= 35 V, T
J
= 25°C 0.55 A
I
scp
Short circuit peak current T
J
= 25°C 2.2 A
1. Load and line regulation are specified at const ant junction temperature. Changes in V
O
due to heating effects must be
taken into account separately. Pulse testing with low duty cycle is used.
Ele ctrical characteristics L78
16/59 DocID2143 Rev 33
Refer to the test circuits, T
J
= 0 to 125 °C, V
I
= 14 V, I
O
= 500 mA, C
I
= 0. 33 µF, C
O
= 0.1 µF
unless otherwise specified
(j)
.
j. Minimum load current for regulation is 5 mA.
Table 12. Electrical characteristics of L7808C
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
O
Output voltage T
J
= 25°C 7.7 8 8.3 V
V
O
Output voltage I
O
= 5 mA to 1 A, V
I
= 10.5 to 21 V 7.6 8 8.4 V
V
O
Output voltage I
O
= 1 A, V
I
= 21 to 25 V, T
J
= 25°C 7.6 8 8.4 V
ΔV
O(1)
Line regulation V
I
= 10.5 to 25 V, T
J
= 25°C 160 mV
V
I
= 11 to 17 V, T
J
= 25°C 80
ΔV
O(1)
Load regulation I
O
= 5 mA to 1.5 A, T
J
= 25°C 160 mV
I
O
= 250 to 750 mA, T
J
= 25°C 80
I
d
Quiescent current T
J
= 25°C 8 mA
ΔI
d
Quiescent current change I
O
= 5 mA to 1 A 0.5 mA
V
I
= 10.5 to 25 V 1
ΔV
O
/ΔT Output voltage drift I
O
= 5 mA -0.8 mV/°C
eN Output noise voltage B = 10 Hz to 100 kHz, T
J
= 25°C 52 µV/V
O
SVR Supply voltage rejection V
I
= 11.5 to 21.5 V, f = 120 Hz 56 dB
V
d
Dropout voltage I
O
= 1 A, T
J
= 25°C 2 V
R
O
Output resistance f = 1 kHz 16 mΩ
I
sc
Short circuit current V
I
= 35 V, T
J
= 25°C 0.45 A
I
scp
Short circuit peak current T
J
= 25°C 2.2 A
1. Load and line regulation are specified at const ant junction temperature. Changes in V
O
due to heating effects must be
taken into account separately. Pulse testing with low duty cycle is used.
DocID2143 Rev 33 17/59
L78 Electrical ch ara ct er istics
59
Refer to the test circuits, T
J
= 0 to 125 °C, V
I
= 14.5 V, I
O
= 500 mA, C
I
= 0.33 µF,
C
O
= 0.1 µF unless otherwise specified
(k)
.
k. Minimum load current for regulation is 5 mA.
Table 13. Electrical characteristics of L7885C
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
O
Output voltage T
J
= 25°C 8.2 8.5 8.8 V
V
O
Output voltage I
O
= 5 mA to 1 A, V
I
= 11 to 21.5 V 8.1 8.5 8.9 V
V
O
Output voltage I
O
= 1 A, V
I
= 21.5 to 26 V, T
J
= 25°C 8.1 8.5 8.9 V
ΔV
O(1)
Line regulation V
I
= 11 to 27 V, T
J
= 25°C 160 mV
V
I
= 11.5 to 17.5 V, T
J
= 25°C 80
ΔV
O(1)
Load regulation I
O
= 5 mA to 1.5 A, T
J
= 25°C 160 mV
I
O
= 250 to 750 mA, T
J
= 25°C 80
I
d
Quiescent current T
J
= 25°C 8 mA
ΔI
d
Quiescent current change I
O
= 5 mA to 1 A 0.5 mA
V
I
= 11 to 26 V 1
ΔV
O
/ΔT Output voltage drift I
O
= 5 mA -0.8 mV/°C
eN Output noise voltage B = 10 Hz to 100 kHz, T
J
= 25°C 55 µV/V
O
SVR Supply voltage rejection V
I
= 12 to 22 V, f = 120 Hz 56 dB
V
d
Dropout voltage I
O
= 1 A, T
J
= 25°C 2 V
R
O
Output resistance f = 1 kHz 16 mΩ
I
sc
Short circuit current V
I
= 35 V, T
J
= 25°C 0.45 A
I
scp
Short circuit peak current T
J
= 25°C 2.2 A
1. Load and line regulation are specified at const ant junction temperature. Changes in V
O
due to heating effects must be
taken into account separately. Pulse testing with low duty cycle is used.
Ele ctrical characteristics L78
18/59 DocID2143 Rev 33
Refer to the test circuits, T
J
= 0 to 125 °C, V
I
= 15 V, I
O
= 500 mA, C
I
= 0. 33 µF, C
O
= 0.1 µF
unless otherwise specified
(l)
.
l. Minimum load current for regulation is 5 mA.
Table 14. Electrical characteristics of L7809C
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
O
Output voltage T
J
= 25°C 8.64 9 9.36 V
V
O
Output voltage I
O
= 5 mA to 1 A, V
I
= 11.5 to 22 V 8.55 9 9.45 V
V
O
Output voltage I
O
= 1 A, V
I
= 22 to 26 V, T
J
= 25°C 8.55 9 9.45 V
ΔV
O(1)
Line regulation V
I
= 11.5 to 26 V, T
J
= 25°C 18 0 mV
V
I
= 12 to 18 V, T
J
= 25°C 90
ΔV
O(1)
Load regulation I
O
= 5 mA to 1.5 A, T
J
= 25°C 180 mV
I
O
= 250 to 750 mA, T
J
= 25°C 90
I
d
Quiescent current T
J
= 25°C 8 mA
ΔI
d
Quiescent current change I
O
= 5 mA to 1 A 0.5 mA
V
I
= 11.5 to 26 V 1
ΔV
O
/ΔT Output voltage drift I
O
= 5 mA -1 mV/°C
eN Output noise voltage B = 10 Hz to 100 kHz, T
J
= 25°C 70 µV/V
O
SVR Supply voltage rejection V
I
= 12 to 23 V, f = 120 Hz 55 dB
V
d
Dropout voltage I
O
= 1 A, T
J
= 25°C 2 V
R
O
Output resistance f = 1 kHz 17 mΩ
I
sc
Short circuit current V
I
= 35 V, T
J
= 25°C 0.40 A
I
scp
Short circuit peak current T
J
= 25°C 2.2 A
1. Load and line regulation are specified at const ant junction temperature. Changes in V
O
due to heating effects must be
taken into account separately. Pulse testing with low duty cycle is used.
DocID2143 Rev 33 19/59
L78 Electrical ch ara ct er istics
59
Refer to the test circuits, T
J
= 0 to 125 °C, V
I
= 19 V, I
O
= 500 mA, C
I
= 0. 33 µF, C
O
= 0.1 µF
unless otherwise specified
(m)
.
m. Minimum load current for regulation is 5 mA.
Table 15. Electrical characteristics of L7812C
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
O
Output voltage T
J
= 25°C 11.5 12 12.5 V
V
O
Output voltage I
O
= 5 mA to 1 A, V
I
= 14.5 to 25 V 11.4 12 12.6 V
V
O
Output voltage I
O
= 1 A, V
I
= 25 to 27 V, T
J
= 25°C 11.4 12 12.6 V
ΔV
O(1)
Line regulation V
I
= 14.5 to 30 V, T
J
= 25°C 240 mV
V
I
= 16 to 22 V, T
J
= 25°C 120
ΔV
O(1)
Load regulation I
O
= 5 mA to 1.5 A, T
J
= 25°C 240 mV
I
O
= 250 to 750 mA, T
J
= 25°C 120
I
d
Quiescent current T
J
= 25°C 8 mA
ΔI
d
Quiescent current change I
O
= 5 mA to 1 A 0.5 mA
V
I
= 14.5 to 30 V 1
ΔV
O
/ΔT Output voltage drift I
O
= 5 mA -1 mV/°C
eN Output noise voltage B = 10 Hz to 100 kHz, T
J
= 25°C 75 µV/V
O
SVR Supply voltage rejection V
I
= 15 to 25 V, f = 120 Hz 55 dB
V
d
Dropout voltage I
O
= 1 A, T
J
= 25°C 2 V
R
O
Output resistance f = 1 kHz 18 mΩ
I
sc
Short circuit current V
I
= 35 V, T
J
= 25°C 0.35 A
I
scp
Short circuit peak current T
J
= 25°C 2.2 A
1. Load and line regulation are specified at const ant junction temperature. Changes in V
O
due to heating effects must be
taken into account separately. Pulse testing with low duty cycle is used.
Ele ctrical characteristics L78
20/59 DocID2143 Rev 33
Refer to the test circuits, T
J
= 0 to 125 °C, V
I
= 23 V, I
O
= 500 mA, C
I
= 0. 33 µF, C
O
= 0.1 µF
unless otherwise specified
(n)
.
n. Minimum load current for regulation is 5 mA.
Table 16. Electrical characteristics of L7815C
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
O
Output voltage T
J
= 25°C 14.4 15 15.6 V
V
O
Output voltage I
O
= 5 mA to 1 A, V
I
= 17.5 to 28 V 14.25 15 15.75 V
V
O
Output voltage I
O
= 1 A, V
I
= 28 to 30 V, T
J
= 25°C 14.25 15 15.75 V
ΔV
O(1)
Line regulation V
I
= 17.5 to 30 V, T
J
= 25°C 300 mV
V
I
= 20 to 26 V, T
J
= 25°C 150
ΔV
O(1)
Load regulation I
O
= 5 mA to 1.5 A, T
J
= 25°C 300 mV
I
O
= 250 to 750 mA, T
J
= 25°C 150
I
d
Quiescent current T
J
= 25°C 8 mA
ΔI
d
Quiescent current change I
O
= 5 mA to 1A 0.5 mA
V
I
= 17.5 to 30 V 1
ΔV
O
/ΔT Output voltage drift I
O
= 5 mA -1 mV/°C
eN Output noise voltage B = 10 Hz to 100kHz, T
J
= 25°C 90 µV/V
O
SVR Supply voltage rejection V
I
= 18.5 to 28.5 V, f = 120 Hz 54 dB
V
d
Dropout voltage I
O
= 1 A, T
J
= 25°C 2 V
R
O
Output resistance f = 1 kHz 19 mΩ
I
sc
Short circuit current V
I
= 35 V, T
J
= 25°C 0.23 A
I
scp
Short circuit peak current T
J
= 25°C 2.2 A
1. Load and line regulation are specified at const ant junction temperature. Changes in V
O
due to heating effects must be
taken into account separately. Pulse testing with low duty cycle is used.
DocID2143 Rev 33 21/59
L78 Electrical ch ara ct er istics
59
Refer to the test circuits, T
J
= 0 to 125 °C, V
I
= 26 V, I
O
= 500 mA, C
I
= 0. 33 µF, C
O
= 0.1 µF
unless otherwise specified
(o)
.
o. Minimum load current for regulation is 5 mA.
Table 17. Electrical characteristics of L7818C
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
O
Output voltage T
J
= 25°C 17.3 18 18.7 V
V
O
Output voltage I
O
= 5 mA to 1 A, V
I
= 21 to 31 V 17.1 18 18.9 V
V
O
Output voltage I
O
= 1 A, V
I
= 31 to 33 V, T
J
= 25°C 17.1 18 18.9 V
ΔV
O(1)
Line regulation V
I
= 21 to 33 V, T
J
= 25°C 360 mV
V
I
= 24 to 30 V, T
J
= 25°C 180
ΔV
O(1)
Load regulation I
O
= 5 mA to 1.5 A, T
J
= 25°C 360 mV
I
O
= 250 to 750 mA, T
J
= 25°C 180
I
d
Quiescent current T
J
= 25°C 8 mA
ΔI
d
Quiescent current change I
O
= 5 mA to 1 A 0.5 mA
V
I
= 21 to 33 V 1
ΔV
O
/ΔT Output voltage drift I
O
= 5 mA -1 mV/°C
eN Output noise voltage B = 10 Hz to 100 kHz, T
J
= 25°C 110 µV/V
O
SVR Supply voltage rejection V
I
= 22 to 32 V, f = 120 Hz 53 dB
V
d
Dropout voltage I
O
= 1 A, T
J
= 25°C 2 V
R
O
Output resistance f = 1 kHz 22 mΩ
I
sc
Short circuit current V
I
= 35 V, T
J
= 25°C 0.20 A
I
scp
Short circuit peak current T
J
= 25°C 2.1 A
1. Load and line regulation are specified at const ant junction temperature. Changes in V
O
due to heating effects must be
taken into account separately. Pulse testing with low duty cycle is used.
Ele ctrical characteristics L78
22/59 DocID2143 Rev 33
Refer to the test circuits, T
J
= 0 to 125 °C, V
I
= 33 V, I
O
= 500 mA, C
I
= 0. 33 µF, C
O
= 0.1 µF
unless otherwise specified
(p)
.
p. Minimum load current for regulation is 5 mA.
Table 18. Electrical characteristics of L7824C
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
O
Output voltage T
J
= 25°C 23 24 25 V
V
O
Output voltage I
O
= 5 mA to 1 A, V
I
= 27 to 37 V 22.8 24 25.2 V
V
O
Output voltage I
O
= 1 A, V
I
= 37 to 38 V, T
J
= 25°C 22.8 24 25.2 V
ΔV
O(1)
Line regulation V
I
= 27 to 38 V, T
J
= 25°C 480 mV
V
I
= 30 to 36 V, T
J
= 25°C 240
ΔV
O(1)
Load regulation I
O
= 5 mA to 1.5 A, T
J
= 25°C 480 mV
I
O
= 250 to 750 mA, T
J
= 25°C 240
I
d
Quiescent current T
J
= 25°C 8 mA
ΔI
d
Quiescent current change I
O
= 5 mA to 1 A 0.5 mA
V
I
= 27 to 38 V 1
ΔV
O
/ΔT Output voltage drift I
O
= 5 mA -1.5 mV/°C
eN Output noise voltage B = 10 Hz to 100 kHz, T
J
= 25°C 170 µV/V
O
SVR Supply voltage rejection V
I
= 28 to 38 V, f = 120 Hz 50 dB
V
d
Dropout voltage I
O
= 1 A, T
J
= 25°C 2 V
R
O
Output resistance f = 1 kHz 28 mΩ
I
sc
Short circuit current V
I
= 35 V, T
J
= 25°C 0.15 A
I
scp
Short circuit peak current T
J
= 25°C 2.1 A
1. Load and line regulation are specified at const ant junction temperature. Changes in V
O
due to heating effects must be
taken into account separately. Pulse testing with low duty cycle is used.
DocID2143 Rev 33 23/59
L78 Application information
59
6 Application information
6.1 Design consideration
The L78 Series of fixed voltage regulators are designed with thermal overload protection
that shuts down the circuit when subjected to an excessive power overload condition,
internal short-circuit protection that limits the maximum current the circuit will pass, and
output transistor safe-area compensation that reduces the output short-circuit current as the
voltage across the pass transistor is increased. In many low current applications,
compensation capacitors are not required. However, it is recommended that the regulator
input be bypassed with capacitor if the regulator is connected to the power supply filter with
long lengths, or if the output load capacitance is large. An input bypass capacitor should be
selected to provide good high frequency characteristics to insure stable operation under all
load conditions. A 0.33 µF or larger tantalum, mylar or other capacitor having low internal
impedance at high frequencies should be chosen. The bypass capacitor should be mounted
with the shortest possible leads directly across the regulators input terminals. Normally good
construction techniques should be used to minimize ground loops and lead resistance drops
since the regulator has no external sense lead.
The addition of an operational amplifier allows adjustment to higher or intermediate values
while retaining regulation characteristics. The minimum voltage obtained with the
arrangement is 2 V greater than the regulator voltage.
The circuit of Figure 13 can be modified to provide supply protection against short circuit by
adding a short circuit sense resistor, RSC, and an additional PNP transistor. The current
sensing PNP must be able to handle the short circuit current of the three terminal regulator
Therefore a four ampere plastic power transistor is specified.
Figure 8. Fixed output regulator
1. Although no output capacitor is need for stability, it does improve transient response.
2. Required if regulator is located an appreciable distance from power supply filter.
Application information L78
24/59 DocID2143 Rev 33
Figure 9. Current regulator
,29;;;;5,G
Figure 10. Circuit for increasing output volt age
,5 ,G
929;;;;555,G5
Ż
DocID2143 Rev 33 25/59
L78 Application information
59
Figure 11. Adjustable output regulator (7 to 30 V)
Figure 12. 0.5 to 10 V regulator
V
O
=V
XX
R
4
/R
1
Application information L78
26/59 DocID2143 Rev 33
Figure 13. High current voltage regulator
5
,2 ,5(*4,5(*B
9
BBBB
%(4
B
9%(4
5 BBBBBBBBBBBBBB
,5(4,4E4
Figure 14. High output current with short circuit protection
56&6& 9%(%(44,6&6&
DocID2143 Rev 33 27/59
L78 Application information
59
* Against potential latch-up problems.
Figure 15. Tracking voltage regulator
Figure 16. Split power supply (± 15 V - 1 A)
Application information L78
28/59 DocID2143 Rev 33
Figure 17. Negative output voltage circuit
Figure 18. Switching regulator
Figure 19. High input voltage circuit (configuration 1)
9,1 9,99=9%(%(
DocID2143 Rev 33 29/59
L78 Application information
59
Figure 20. High input voltage circuit (configuration 2)
Figure 21. High input and output voltage
92 9;;;;9=
Figure 22. Reducing power dissipation with dropping resistor
9999 9
5 BB,PL,PL
BBBBB
QQ
BBBBBBB
;;;;
BBBBB
'52
BBBBBBB
3PD[PD[
BBBBBB
,2PD[[,GPD[PD[
Application information L78
30/59 DocID2143 Rev 33
Note: The circuit performs well up to 100 kHz.
Figure 23. Remote shutdown
Figure 24. Power AM modulator (unity voltage gain, I
O
≤
0.5)
DocID2143 Rev 33 31/59
L78 Application information
59
Note: Q
2
is connected as a diode in order to compensate the variation of the Q
1
V
BE
with the
temperature. C allows a slow rise time of the V
O
.
Figure 25. Adjustable output voltage with temperature compensation
92 9;;559%(
Figure 26. Light controllers (V
O(min)
= V
XX
+ V
BE
)
92ULVHVZKHQWKHOLJKWJRHVXS
92IDOOVZKHQWKHOLJKWJRHVXS
Application information L78
32/59 DocID2143 Rev 33
Note: Application with high capacitance loads and an output voltage greater than 6 volts need an
external diode (see Figure 22 on page 29) to protect the device against input short circuit. In
this case the input voltage falls rapidly while the output voltage decrease slowly. The
capacitance discharges by means of the base-emitter junction of the series pass transistor
in the regulator. If the energy is sufficiently high, the transistor may be destroyed. The
external diode by-passes the current from the IC to ground.
Figure 27. Protection against input short-cir cuit with high capacitance loads
DocID2143 Rev 33 33/59
L78 Typical perf ormance
59
7 Typical performance
Figure 28. Dropout voltage vs. junction
temperature Figure 29. Peak output current vs. input/output
differential voltage
Figure 30. Supply voltage rejection vs.
frequency Figure 31. Output voltage vs. junction
temperature
Figure 32. Output impedance vs. frequency Figure 33. Quiescent c urrent vs. junction temp.
Typical performa nce L78
34/59 DocID2143 Rev 33
Figure 34. Load transient response Figure 35. Line transient response
Figure 36. Quiescent current vs. input voltage
DocID2143 Rev 33 35/59
L78 Package information
59
8 Package information
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK
®
packages, depending on their level of environmental compliance. ECOPACK
®
specifications, grade definitions and product status are available at: www.st.com.
ECOPACK
®
is an ST trademark.
Package information L78
36/59 DocID2143 Rev 33
8.1 TO-220 (dual gauge) package information
Figure 37. TO-220 (dual gauge) package outline
BW\SH$B5HYB7
DocID2143 Rev 33 37/59
L78 Package information
59
Table 19. TO-220 (dual gauge) mechanical data
Dim. mm
Min. Typ. Max.
A4.40 4.60
b0.61 0.88
b1 1.14 1.70
c0.48 0.70
D 15.25 15.75
D1 1.27
E 10 10.40
e2.40 2.70
e1 4.95 5.15
F1.23 1.32
H1 6.20 6.60
J1 2.40 2.72
L13 14
L1 3.50 3.93
L20 16.40
L30 28.90
∅
P3.75 3.85
Q2.65 2.95
Package information L78
38/59 DocID2143 Rev 33
8.2 TO-220 (single gauge) package information
Figure 38. TO-220 (single gauge) p ackage outline
BUHY'
DocID2143 Rev 33 39/59
L78 Package information
59
Table 20. TO-220 (single gauge) mechanical data
Dim. mm
Min. Typ. Max.
A 4.40 4.60
b 0.61 0.88
b1 1.14 1.70
c 0.48 0.70
D 15.25 15.75
E 10 10.40
e 2.40 2.70
e1 4.95 5.15
F 0.51 0.60
H1 6.20 6.60
J1 2.40 2.72
L13 14
L1 3.50 3.93
L20 16.40
L30 28.90
∅
P 3.75 3.85
Q 2.65 2.95
Package information L78
40/59 DocID2143 Rev 33
8.3 TO-220FP package information
Figure 39. TO-220FP package outline
7012510A-H
DocID2143 Rev 33 41/59
L78 Package information
59
Table 21. TO-220FP mechanical data
Dim. mm.
Min. Typ. Max.
A4.40 4.60
B2.5 2.7
D 2.5 2.75
E0.45 0.70
F0.75 1
F1 1.15 1.50
F2 1.15 1.50
G 4.95 5.2
G1 2.4 2.7
H 10.0 10.40
L2 16
L3 28.6 30.6
L4 9.8 10.6
L5 2.9 3.6
L6 15.9 16.4
L7 9 9.3
DIA. 3 3.2
Package information L78
42/59 DocID2143 Rev 33
8.4 TO-220 packing information
Figure 40. Tube for TO-220 (dual gauge) (mm.)
Figure 41. Tube for TO-220 (single gauge) (mm.)
DocID2143 Rev 33 43/59
L78 Package information
59
8.5 DPAK package information
Figure 42. DPAK package outline
0068772_K
Package information L78
44/59 DocID2143 Rev 33
Table 22. DPAK mechanical data
Dim. mm
Min. Typ. Max.
A2.20 2.40
A1 0.90 1.10
A2 0.03 0.23
b0.64 0.90
b4 5.20 5.40
c0.45 0.60
c2 0.48 0.60
D6.00 6.20
D1 5.10
E6.40 6.60
E1 4.70
e2.28
e1 4.40 4.60
H 9.35 10.10
L1.00 1.50
(L1) 2.80
L2 0.80
L4 0.60 1.00
R0.20
V2 0° 8°
DocID2143 Rev 33 45/59
L78 Package information
59
Figure 43. DPAK recommended footprint
(q)
q. All dimensions are in millimeters
Footprint_REV_K
Package information L78
46/59 DocID2143 Rev 33
8.6 DPAK packing information
Figure 44. Tape for DPAK
P1
A0 D1
P0
F
W
E
D
B0
K0
T
User direction of feed
P2
10 pitches cumulative
tolerance on tape +/- 0.2 mm
User direction of feed
R
Bending radius
B1
For machine ref. only
including draft and
radii concentric around B0
AM08852v1
Top cover
tape
DocID2143 Rev 33 47/59
L78 Package information
59
Figure 45. Reel for DPAK
Table 23. DPAK tape and reel mechanical data
Tape Reel
Dim. mm Dim. mm
Min. Max. Min. Max.
A0 6.8 7 A 330
B0 10.4 10.6 B 1.5
B1 12.1 C 12.8 13.2
D 1.5 1.6 D 20.2
D1 1.5 G 16.4 18.4
E 1.65 1.85 N 50
F 7.4 7.6 T 22.4
K0 2.55 2.75
P0 3.9 4.1 Base qty. 2500
P1 7.9 8.1 Bulk qty. 2500
P2 1.9 2.1
R40
T 0.25 0.35
W 15.7 16.3
A
D
B
Full radius G measured at hub
C
N
REEL DIMENSIONS
40mm min.
Access hole
At sl ot location
T
Tape slot
in core for
tape start 25 mm min.
width
AM08851v2
Package information L78
48/59 DocID2143 Rev 33
8.7 D
²
PAK (SMD 2L STD-ST) type A package information
Figure 46. D²PAK (SMD 2L STD-ST) type A package outline
Table 24. D²PAK (SMD 2L STD-ST) mechanical data
Dim. mm
Min. Typ. Max.
A4.40 4.60
A1 0.03 0.23
b0.70 0.93
b2 1.14 1.70
c0.45 0.60
c2 1.23 1.36
D8.95 9.35
D1 7.50
E 10 10.40
E1 8.50
e2.54
0079457_T
DocID2143 Rev 33 49/59
L78 Package information
59
e1 4.88 5.28
H 15 15.85
J1 2.49 2.69
L2.29 2.79
L1 1.27 1.40
L2 1.30 1.75
R0.4
V2 0° 8°
Table 24. D²PAK (SMD 2L STD-ST) mechanical data
Dim. mm
Min. Typ. Max.
Package information L78
50/59 DocID2143 Rev 33
8.8 D
²
PAK (SMD 2L Wo os eok - subcon.) p ackage information
Figure 47. D²PAK (SMD 2L Wooseok-subcon.) package outline
0079457_T
DocID2143 Rev 33 51/59
L78 Package information
59
Table 25. D²PAK (SMD 2L Wooseok-subcon.) mechanical data
Dim. mm
Min. Typ. Max.
A4.30 4.70
A1 0 0.20
b0.70 0.90
b2 1.17 1.37
c0.450.500.60
c2 1.25 1.30 1.40
D 9 9.20 9.40
D1 7.50
E 10 10.40
E1 8.50
e2.54
e1 4.88 5.08
H 15 15.30
J1 2.20 2.60
L1.79 2.79
L1 1 1.40
L2 1.20 1.60
R0.30
V2 0° 3°
Package information L78
52/59 DocID2143 Rev 33
Figure 48. D²PAK (SMD 2L Wooseok-subcon.) recommended footprint
DocID2143 Rev 33 53/59
L78 Package information
59
8.9 D
²
PAK packing information
Figure 49. Tape for D²PAK
P1
A0 D1
P0
F
W
E
D
B0
K0
T
User direction of feed
P2
10 pitches cumulative
tolerance on tape +/- 0.2 mm
User direction of feed
R
Bending radius
B1
For machine ref. only
including draft and
radii concentric around B0
AM08852v1
Top cover
tape
Package information L78
54/59 DocID2143 Rev 33
Figure 50. Reel for D²PAK
Table 26. D²PAK t a pe and reel mechanical data
Tape Reel
Dim. mm Dim. mm
Min. Max. Min. Max.
A0 10.5 10.7 A 330
B0 15.7 15.9 B 1.5
D 1.5 1.6 C 12.8 13.2
D1 1.59 1.61 D 20.2
E 1.65 1.85 G 24.4 26.4
F 11.4 11.6 N 100
K0 4.8 5.0 T 30.4
P0 3.9 4.1
P1 11.9 12.1 Base qty 1000
P2 1.9 2.1 Bulk qty 1000
R50
T 0.25 0.35
W 23.7 24.3
A
D
B
Full radius G measured at hub
C
N
REEL DIMENSIONS
40mm min.
Access hole
At sl ot location
T
Tape slot
in core for
tape start 25 mm min.
width
AM08851v2
DocID2143 Rev 33 55/59
L78 Ordering information
59
9 Ordering information
Table 27. Order codes
Part
numbers
Order code s
TO-220
(single gauge) TO-220
(dual gauge) DPAK D²PAK TO-220FP Output
voltages
L7805C L7805CV L7805CDT-TR L7805CD2T-TR L7805CP 5 V
L7805CV-DG 5 V
L7805AB L7805ABV L7805ABD2T-TR L7805ABP 5 V
L7805ABV-DG 5 V
L7805AC L7805ACV L7805ACD2T-TR L7805ACP 5 V
L7805ACV-DG 5 V
L7806C L7806CV L7806CD2T-TR 6 V
L7806CV-DG 6 V
L7806AB L7806ABV L7806ABD2T-TR 6 V
L7806ABV-DG 6 V
L7806AC L7806ACV 6 V
L7806ACV-DG 6 V
L7808C L7808CV L7808CD2T-TR 8 V
L7808CV-DG 8 V
L7808AB L7808ABV L7808ABD2T-TR 8 V
L7808ABV-DG 8 V
L7808AC L7808ACV 8 V
L7808ACV-DG 8 V
L7885C L7885CV 8.5 V
L7809C L7809CV L7809CD2T-TR L7809CP 9 V
L7809CV-DG 9 V
L7809AB L7809ABV L7809ABD2T-TR 9 V
L7809ABV-DG 9 V
L7809AC L7809ACV 9 V
L7812C L7812CV L7812CD2T-TR L7812CP 12 V
L7812CV-DG 12 V
L7812AB L7812ABV L7812ABD2T-TR 12 V
L7812ABV-DG 12 V
L7812AC L7812ACV L7812ACD2T-TR 12 V
L7812ACV-DG 12 V
Ordering information L78
56/59 DocID2143 Rev 33
L7815C L7815CV L7815CD2T-TR L7815CP 15 V
L7815CV-DG 15 V
L7815AB L7815ABV L7815ABD2T-TR 15 V
L7815ABV-DG 15 V
L7815AC L7815ACV L7815ACD2T-TR 15 V
L7815ACV-DG 15 V
L7818C L7818CV 18 V
L7818CV-DG 18 V
L7824C L7824CV L7824CD2T-TR L7824CP 24 V
L7824CV-DG 24 V
L7824AB L7824ABV 24 V
L7824ABV-DG 24 V
L7824AC L7824ACV 24 V
L7824ACV-DG 24 V
Table 27. Order codes (continued)
Part
numbers
Order code s
TO-220
(single gauge) TO-220
(dual gauge) DPAK D²PAK TO-220FP Output
voltages
DocID2143 Rev 33 57/59
L78 Revision history
59
10 Revision history
Table 28. Document revision history
Date Revision Changes
21-Jun-2004 12 Document updating.
03-Aug-2006 13 Order codes has been updated and new template.
19-Jan-2007 14 D²PAK mechanical data has been updated and add footprint data.
31-May-2007 15 Order codes has been updated.
29-A ug-2 007 16 Added Table 1 in cover page.
11-Dec-2007 17 Modified: Table 27.
06-Feb-2008 18 Added : TO-22 0 mechani cal dat a Figure 38 on page 38 , Figure 39 on p age 39,
and Table 23 on page 37. Modified: Table 27 on page 58.
18-Mar-2008 19 Added: Table 29: DPAK mechanical data on page 50, Table 30: Tape and reel
DPAK mechanical data on page 52. Modified: Table 27 on page 58.
26-Jan-2010 20 Modified Table 1 on page 1 and Table 23 on page 37, added: Figure 38 on
page 38 and Figure 39 on page 39, Figure 40 on page 45 and Figure 41 on
page 45.
04-Mar-2010 21 Added notes Figure 38 on page 38.
08-Sep-2010 22 Modified Table 27 on page 58.
23-Nov-2010 23 Added: TJ = 25 °C test condition in DVO on Table 3, 4, 5, 6, 7, 8 and Table 9.
16-Sep-2011 24 Modified title on page 1.
30-Nov-2011 25 Added: order codes L7805CV -DG, L7806 CV -DG, L7808ABV -DG, L78 12CV -DG
and L7815CV-DG Table 27 on page 58.
08-Feb-2012 26 Added: order codes L7805ACV-DG, L7805ABV-DG, L7806ABV-DG, L7808CV-
DG, L7809CV-DG, L7812ACV-DG, L7818CV-DG, L7824CV-DG Table 27 on
page 58.
27-Mar-2012 27 Added: order codes L7812ABV-DG, L7815ABV-DG Table 27 on page 58.
27-Apr-2012 28 Modified: VI = 10.4 to 23 V ==> VI = 11.4 to 23 V test conditon value
Line regulation Table 6 on page 13.
10-May-2012 29 Added: order codes L7806ACV-DG, L7808ACV-DG, L7815ACV-DG,
L7824ABV-DG and L7824ACV-DG Table 27 on page 58.
19-Sep-2012 30 Modified load regulation units from V to mV in Table 3 to Table 9.
12-Mar-2013 31 Modified: VO output voltage at 25 °C min. value 14.4 V Table 16 on page 23.
Revision history L78
58/59 DocID2143 Rev 33
04-Mar-2014 32
Part numbers L78xx, L78xxC, L78xxAB, L78xxAC changed to L78.
Removed TO-3 package.
Update d the descrip tio n in cover p age, Sec tion 2: Pin confi guratio n, Sectio n 3:
Maximum ratings, Section 4: Test circ uits, Section 5: Elect rical characterist ics,
Section 6: Application information, Section 8: Package information and
Table 27: Order codes.
Added Section 9: Packaging mechanical data.
Minor text changes.
26-Feb-2016 33 Updated Section 8: Package information.
Minor text changes.
Table 28. Document revision history (continued)
Date Revision Changes
DocID2143 Rev 33 59/59
L78
59
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