Low-Drop Voltage Regulator TLE 4276
Data Sheet Version 2 1 2000-02-14
P-TO220-5-3
P-TO-220-5-43
P-TO 220-5-122
(TO-220 AB/5, Option E3122)
P-TO252-5-1
Features
• 5 V, 8.5 V, 10 V or variable output voltage
• Output voltage tolerance ≤±4%
• 400 mA current capability
• Low-drop voltage
• Inhibit input
• Very low current consumption
• Short-circuit-proof
• Reverse polarity proof
• Suitable for use in automotive electronics
SMD = Surface Mounted Device
▼New type
Type Ordering Code Package
TLE 4276 V50 Q67000-A9262 P-TO220-5-3
TLE 4276 V85 Q67000-A9263 P-TO220-5-3
TLE 4276 V10 Q67000-A9264 P-TO220-5-3
TLE 4276 S V50 Q67000-A9267 P-TO220-5-43
TLE 4276 S V85 Q67000-A9269 P-TO220-5-43
TLE 4276 S V10 Q67000-A9271 P-TO220-5-43
TLE 4276 V Q67000-A9265 P-TO220-5-3
TLE 4276 SV Q67000-A9273 P-TO220-5-43
TLE 4276 G V50 Q67006-A9266 P-TO220-5-122
TLE 4276 G V85 Q67006-A9268 P-TO220-5-122
TLE 4276 G V10 Q67006-A9270 P-TO220-5-122
TLE 4276 GV Q67006-A9272 P-TO220-5-122
▼TLE 4276 D V50 Q67006-A9358 P-TO252-5-1
▼TLE 4276 DV Q67006-A9361 P-TO252-5-1
TLE 4276
Data Sheet Version 2 2 2000-02-14
Functional Description
The TLE 4276 is a low-drop voltage regulator in a TO220 package. The IC regulates an
input voltage up to 40 V to VQrated = 5.0 V (V50), 8.5 V (V85), 10 V (V10) and adjustable
voltage (V). The maximum output current is 400 mA. The IC can be switched off via the
inhibit input, which causes the current consumption to drop below 10 µA. The IC is short-
circuit-proof and incorporates temperature protection that disables it at over-tempera-
ture.
Dimensioning Information on External Components
The input capacitor CIis necessary for compensating line influences. Using a resistor of
approx. 1 Ωin series with CI, the oscillating of input inductivity and input capacitance can
be damped. The output capacitor CQis necessary for the stability of the regulation circuit.
Stability is guaranteed at values CQ≥22 µF and an ESR of ≤3Ωwithin the operating
temperature range.
Circuit Description
The control amplifier compares a reference voltage to a voltage that is proportional to the
output voltage and drives the base of the series transistor via a buffer. Saturation control
as a function of the load current prevents any oversaturation of the power element. The
IC also incorporates a number of internal circuits for protection against:
• Overload
• Overtemperature
• Reverse polarity
TLE 4276
Data Sheet Version 2 3 2000-02-14
Pin Configuration
(top view)
Figure 1
Pin Definitions and Functions
Pin No. Symbol Function
1IInput; block to ground directly at the IC with a ceramic capacitor.
2 INH Inhibit; low-active input
3 GND Ground
4 N.C.
VA Not connected for V50, V85, V10
Voltage Adjust Input; only for adjustable output from external
voltage divider.
5QOutput; block to ground with a ≥22 µF capacitor.
Q
ΙGND
N.C.
INH
15
AEP02041
(VA)
GND
Ι
INH (VA)
AEP02042
N.C.
Q
15
P-TO220-5-43 P-TO220-5-122P-TO220-5-3 P-TO252-5-1
AEP02560
15
INH
ΙN.C.Q
(VA)
GND
15
GND
INH
Ι
AEP02043
N.C.
(VA)
Q
TLE 4276
Data Sheet Version 2 4 2000-02-14
Figure 2
Block Diagram
Ι1
AEB02044
GND
3
Q
6
Bandgap
Reference
Control
Amplifier
Sensor
Temperature
Buffer
Saturation
Control and
Protection
Circuit
VA
4
INH
2
*)
**) For fixed Voltage Regulator only
For adjustable Voltage Regulator only
**)
*)
TLE 4276
Data Sheet Version 2 5 2000-02-14
Note: Maximum ratings are absolute ratings; exceeding any one of these values may
cause irreversible damage to the integrated circuit.
Absolute Maximum Ratings
Tj= – 40 to 150 °C
Parameter Symbol Limit Values Unit Test Condition
min. max.
Voltage Regulator
Input
Voltage VI–42 45 V–
Current II–––Internally limited
Inhibit
Voltage VINH –42 45 V –
Voltage Adjust Input
Voltage VVA – 0.3 10 V –
Output
Voltage VQ– 1.0 40 V –
Current IQ– – – Internally limited
Ground
Current IGND – 100 mA –
Temperature
Junction temperature Tj– 150 °C–
Storage temperature Tstg – 50 150 °C–
TLE 4276
Data Sheet Version 2 6 2000-02-14
Operating Range
Parameter Symbol Limit Values Unit Remarks
min. max.
Input voltage VIVQ+ 0.5 40 VFixed voltage devices
V50, V85, V10
Input voltage VIVQ+ 0.5 40 VVariable device V
Input voltage VI4.5 V 40 VVariable device V,
VQ<4V
Junction temperature Tj– 40 150 °C–
Thermal Resistance
Junction ambient Rthja – 65 K/W TO220
Junction ambient Rthja – 70 K/W TO2521), TO263
Junction case Rthjc – 4 K/W –
1) Soldered in, minimal footprint
TLE 4276
Data Sheet Version 2 7 2000-02-14
Characteristics
VI= 13.5 V; – 40 °C<Tj< 150 °C (unless otherwise specified)
Parameter Symbol Limit Values Unit Measuring
Condition Measuring
Circuit
min. typ. max.
Output voltage VQ4.8 5 5.2 VV50-Version
5mA<IQ< 400 mA
6V<VI<40V
1
Output voltage VQ8.16 8.5 8.84 VV85-Version
5mA<IQ< 400 mA
9.5 V < VI<40V
1
Output voltage VQ9.6 10 10.4 VV10-Version
5mA<IQ< 400 mA
11 V < VI<40V
1
Output voltage
tolerance ∆VQ– 4 – 4 % V-Version
VV.A.= 2.5 V
R2<50kΩ
VQ+1V≤VI≤40 V
VI> 4.5 V
5mA≤IQ≤400 mA
1
Output current
limitation1) IQ400 600 1100 mA – 1
Current
consumption;
Iq=II–IQ
Iq–010µAVINH =0V;
Tj≤100 °C1
Current
consumption;
Iq=II–IQ
Iq– 100 220 µAIQ= 1 mA 1
Current
consumption;
Iq=II–IQ
Iq
Iq
–5
15
10
25
mA
mA
IQ= 250 mA
IQ= 400 mA
1
1
Drop voltage VDR – 250 500 mV V50, V85, V10
IQ= 250 mA
VDR =VI–VQ
1
Drop voltage1) VDR – 250 500 mV variable devices
IQ= 250 mA
VI> 4.5 V
VDR =VI–VQ
1
1) Measured when the output voltage VQhas dropped 100 mV from the nominal value obtained at VI = 13.5 V.
TLE 4276
Data Sheet Version 2 8 2000-02-14
Load regulation ∆VQ– 5 35 mV IQ= 5 mA to
400 mA 1
Line regulation ∆VQ–1025mV∆Vl= 12 V to 32V
IQ=5mA 1
Power supply
ripple rejection PSRR –60– dBfr= 100 Hz;
Vr= 0.5 VSS
1
Temperature
output voltage
drift
dVQ
dT – 0.5 – – – mV/K
Inhibit
Inhibit on voltage VINH – 2 3.5 V VQ≥ 4.9 V 1
Inhibit off
voltage VINH 0.5 1.7 – V VQ≤ 0.1 V 1
Input current IINH 51020µAVINH =5V 1
Characteristics (cont’d)
VI= 13.5 V; – 40 °C<Tj< 150 °C (unless otherwise specified)
Parameter Symbol Limit Values Unit Measuring
Condition Measuring
Circuit
min. typ. max.
TLE 4276
Data Sheet Version 2 9 2000-02-14
Figure 3
Measuring Circuit
Figure 4
Application Circuit
100 F
*) Optional for adjustable Voltage Regulator
V
Ι
Input
µ
Ι
Ι
100 nF
INH
INH
V
Ι
2
1
TLE 4276
3
R
AES02045
4
*)
5
Adjust
Voltage
22 F
µ
Q
C
Ι
Q
Output
R
R
*)
2
*)
1
V
Q
L
*) Optional for adjustable Voltage Regulator
Input
e.g. KL 15
TLE 4276
3
C
2
Ι
1
Adjust
4
*)
5
C
Voltage
Q
*)
R
AES02046
2
Output
R
1
*)
TLE 4276
Data Sheet Version 2 10 2000-02-14
Application Information for Variable Output Regulator TLE 4276 V, SV, DV, GV
The output voltage of the TLE 4276 V can be adjusted between 2.5 V and 20 V by an
output voltage divider, closing the control loop to the voltage adjust pin VA.
The voltage at pin VA is compared to the internal reference of typical 2.5 V in an error
amplifier. It controls the output voltage.
Figure 5
Application Detail External Components at Output for Variable Voltage Regulator
The output voltage is calculated according to Equation 1:
VQ = (R1 + R2)/R2×Vref, neglecting IVA (equ. 1)
Vref is typically 2.5 V.
To avoid errors caused by leakage current IVA, we recommend to choose the resistor
value R2 according to Equation 2:
R2 < 50 kΩ(equ. 2)
For a 2.5 V output voltage the output pin Q is directly connected to the adjust pin VA.
The accuracy of the resistors R1and R2add an additional error to the output voltage
tolerance.
The operation range of the variable TLE 4276 V is VQ+ 0.5 to 40 V. For internal biasing
a minimum input voltage of 4.3 V is required. For output voltages below 4 V the voltage
drop is 4.3 V – VQ
AEB02804
Current
and
Saturation
Control
Internal
Reference
2.5 V Typical
Q
VA
Vref
R2
R1CQ
22 µF
TLE 4276
Data Sheet Version 2 11 2000-02-14
Voltage VDR versus
Output Current IQ
Current Consumption Iq versus
Output Current IQ (high load)
Max. Output Current IQ versus
Input Voltage VI
Current Consumption Iq versus
Output Current IQ (low load)
00 100
400
600
200
V
dr
mV
400200
Ι
Q
mA
AED01962
j
T
= 25 C
V
dr
=
QNOM-0.1 V
V
j
T
= 125 C
300
100
300
00 200
40
60
20
mA
600400
Ι
Q
mA
AED01964
V
Ι
q
Ι
= 13.5 V
T
= 25 C
j
100 300
10
30
20010
0
mA
800
Q
Ι
= 25 C
T
j
50
V
30 40
V
Ι
AED01963
200
400
600
= 0 V
V
Q
30
001020 mA
40 60
Q
Ι
0.1
0.2
0.3
mA
0.6
0.4
Ι
q
AED01965
T
V
= 25 C
= 13.5 V
Ι
j
Typical Performance Characteristics (V50, V85 and V10):
TLE 4276
Data Sheet Version 2 12 2000-02-14
Output Voltage VQ versus
Temperature Tj
Low Voltage Behavior
Current Consumption Iq versus
Input Voltage VI
High Voltage Behavior
4.90
4.80
4.70
40-40 0
4.60
5.00
V
5.20
5.10
Q
160
C
80 120
T
j
AED01966
V
Ι
= 13.5 V
V
3
2
1
4
02
0
4
V
6
5
Q
1068
V
Ι
AED01968
V
VV
Q
V
Ι
V
Q
=
= 20
= 25 C
R
L
j
T
Ω
00
20
30
10
mA
50
AED01967
q
Ι
10 20 30 V
R
L
=
20
Ω
V
Ι
T
j
= 25 C
1.5
0.5
0
-2
1.0
2.0
2.5
3.0
3.5
mA
Ι
AED01969
V
Ι
50250-25-50 V
Ι
= 25 C
= 3.3 k
j
R
T
L
Ω
Typical Performance Characteristics for V50:
TLE 4276
Data Sheet Version 2 13 2000-02-14
Output Voltage VQ versus
Temperature Tj
Low Voltage Behavior
Current Consumption Iq versus
Input Voltage VI
High Voltage Behavior
7.5
8.0
0-40 40
9.0
8.5
Q
V
= 13.5 V
V
Ι
V
12080 C 160
T
j
AED01970
6
4
08
0
2
4
R
T
Q
V
Q
V
8
Ι
=
V
V
10
12
V
16
12 20
V
Ι
= 25 C
= 34
L
j
Ω
AED01972
Q
V
00
20
30
10
mA
50
AED01971
q
Ι
10 20 30 V
V
Ι
Ω
= 25 C
L
TR
j= 20
0
1.5
1.0
0.5
-50 -25
-2
0
mA
3.5
3.0
2.5
2.0
Ι
Ι
T
R
j
L
= 25 C
Ω
= 8.5 k
V
25 50
V
Ι
AED01973
Typical Performance Characteristics for V85:
TLE 4276
Data Sheet Version 2 14 2000-02-14
Output Voltage VQ versus
Temperature Tj
Low Voltage Behavior
Current Consumption Iq versus
Input Voltage VI
High Voltage Behavior
9.0
9.5
0-40 40
10.5
10.0
Q
V
= 13.5 V
V
Ι
V
12080 C 160
T
j
AED01974
6
4
08
0
2
4
R
T
Q
V
Q
V
8
Ι
=
V
V
10
12
V
16
12 20
V
Ι
= 25 C
= 34
L
j
Ω
AED01976
Q
V
00
20
30
10
mA
50
AED01975
q
Ι
10 20 30 V
R
L
= 20
Ω
V
Ι
T
j
= 25 C
0
1.5
1.0
0.5
-50 -25
-2
0
mA
3.5
3.0
2.5
2.0
Ι
Ι
T
R
j
L
= 25 C
Ω
= 10 k
V
25 50
V
Ι
AED01977
Typical Performance Characteristics for V10:
TLE 4276
Data Sheet Version 2 15 2000-02-14
Package Outlines
P-TO220-5-3
(Plastic Transistor Single Outline)
Sorts of Packing
Package outlines for tubes, trays etc. are contained in our
Data Book “Package Information” Dimensions in mm
TLE 4276
Data Sheet Version 2 16 2000-02-14
P-TO220-5-43
(Plastic Transistor Single Outline)
Sorts of Packing
Package outlines for tubes, trays etc. are contained in our
Data Book “Package Information” Dimensions in mm
TLE 4276
Data Sheet Version 2 17 2000-02-14
1) Shear and punch direction no burrs this surface
2.4
4.4
0.1
1)
1.7
4 x1.7= 6.8
9.9
8
10.5
6.6
7.5
6.5
±0.15
A
(1.3)
+0.1
-0.03
0.8
A0.25 M B
0 ... 0.15
B
1.3
-0.02
+0.1
±0.2
9.2
±0.4
1.5 (14.1)
3.6
±0.3
0.5
+0.15
B0.1
0.05
5
+3
Back side, heatsink contour
All metal surfaces tin plated, except area of cut
P-TO220-5-122
(Plastic Transistor Single Outline)
GPT05259
Sorts of Packing
Package outlines for tubes, trays etc. are contained in our
Data Book “Package Information”. Dimensions in mm
SMD = Surface Mounted Device
TLE 4276
Data Sheet Version 2 18 2000-02-14
P-TO252-5-1
(Plastic Transistor Single Outline)
GPT09161
5.4
±0.1
-0.10
6.5
+0.15
A
±0.5
9.9
6.22
-0.2
1
±0.1
±0.15
0.8
0.15 max
±0.1
per side 5x0.6
1.14
4.56
+0.08
-0.04
0.9
2.3
-0.10
+0.05
B
0.51 min
±0.1
1
+0.08
-0.04
0.5
0...0.15
B
A0.25
M
0.1
All metal surfaces tin plated, except area of cut.
(4.17)
Sorts of Packing
Package outlines for tubes, trays etc. are contained in our
Data Book “Package Information”. Dimensions in mm
SMD = Surface Mounted Device
TLE 4276
Data Sheet Version 2 19 2000-02-14
Edition 2000-02-14
Published by Infineon Technologies AG,
St.-Martin-Strasse 53,
D-81541 München
©Infineon Technologies AG 2000.
All Rights Reserved.
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change reserved.
We hereby disclaim any and all warranties,
including but not limited to warranties of non-
infringement, regarding circuits, descriptions
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manufacturer.
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