P-TO220-3-1
P-TO252-3-1
P-TO263-3-1
Low-Drop Voltage Regulator TLE 4274
Data Sheet Version 1.3 1 2000-10-10
Features
• Output voltage 5 V, 8.5 V or 10 V
• Output voltage tolerance ≤± 4%
• Current capability 400 mA
• Low-drop voltage
• Very low current consumption
• Short-circuit proof
• Reverse polarity proof
• Suitable for use in automotive electronics
SMD = Surface Mounted Device
Functional Description
The TLE 4274 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) and 10 V
(V10). The maximum output current is 400 mA. The IC
is short-circuit proof and incorporates temperature
Type Ordering Code Package
TLE 4274 V10 Q67000-A9258 P-TO220-3-1
TLE 4274 V85 Q67000-A9257 P-TO220-3-1
TLE 4274 V50 Q67000-A9256 P-TO220-3-1
TLE 4274 D V50 Q67006-A9331 P-TO252-3-1
TLE 4274 G V10 Q67006-A9261 P-TO263-3-1
TLE 4274 G V50 Q67006-A9259 P-TO263-3-1
TLE 4274 G V85 Q67006-A9260 P-TO263-3-1
protection that disables the IC at over temperature. A 3.3 V and 2.5 V version is also
available. For information about the low output voltage types please refer to the data
sheet TLE 4274 / 3.3 V; 2.5 V.
TLE 4274
Data Sheet Version 1.3 2 2000-10-10
Dimensioning Information on External Components
The input capacitor CIis necessary for compensating line influences. Using a resistor of
approx. 1 Ωin series withCI, the oscillating of input inductivity and input capacitance can
be damped. The output capacitor CQis necessary for thestability 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 avoltage 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 includes a number of internal circuits for protection against:
• Overload
• Overtemperature
• Reverse polarity
TLE 4274
Data Sheet Version 1.3 3 2000-10-10
Figure 1 Pin Configuration (top view)
Pin Definitions and Functions
Pin No. Symbol Function
1IInput; block to ground directly at the IC with a ceramic
capacitor.
2GNDGround
3Q Output; block to ground with a ≥22 µF capacitor, ESR ≤3Ω.
GND
AEP01957
Ι
Q
P-TO220-3-1 P-TO263-3-1
GNDΙQ
AEP02281
P-TO252-3-1
AEP02512
ΙGND Q
TLE 4274
Data Sheet Version 1.3 4 2000-10-10
Figure 2 Block Diagram
Ι1
AEB01959
GND
2
Q
3
Bandgap
Reference
Control
Amplifier
Sensor
Temperature
Buffer
Saturation
Control and
Protection
Circuit
TLE 4274
Data Sheet Version 1.3 5 2000-10-10
Note: Maximum ratings are absolute ratings; exceeding any one of these values may
cause irreversible damage to the integrated circuit.
Absolute Maximum Ratings
Tj=–40to150°C
Parameter Symbol Limit Values Unit Test Condition
min. max.
Voltage Regulator
Input
Voltage VI–42 45 V–
Current II–––Internally limited
Output
Voltage VQ–1.0 40 V –
Current IQ– – – Internally limited
Ground
Current IGND –100mA–
Temperature
Junction temperature Tj–150°C–
Storage temperature Tstg –50 150 °C–
TLE 4274
Data Sheet Version 1.3 6 2000-10-10
Operating Range
Parameter Symbol Limit Values Unit Remarks
min. max.
Input voltage; V50, DV50,
GV50 VI5.5 40 V –
Input voltage, V85, GV85 VI9.0 40 V –
Input voltage, V10, GV10 VI10.5 40 V –
Junction temperature Tj–40 150 °C–
Thermal Resistance
Junction ambient Rthja–65K/WTO220
Junction ambient Rthja–78K/WTO2521)
Junction ambient Rthja–52K/WTO2631)
Junction case Rthjc–4K/W–
1) Worst case; regarding peak temperature, zero airflow
mountedonPCB80 ×80 ×1.5 mm3,300mm
2heat sink area.
TLE 4274
Data Sheet Version 1.3 7 2000-10-10
Characteristics
VI= 13.5 V; – 40 °C<Tj<150 °C (unless otherwise specified)
Parameter Symbol Limit Values Unit Measuring Conditions
min. typ. max.
Output voltage
V50-Version VQ4.8 5 5.2 V5mA<IQ<400 mA
6V<VI<40 V
Output voltage
V85-Version VQ8.16 8.5 8.84 V5mA<IQ<400 mA
9.5 V <VI<40 V
Output voltage
V10-Version VQ9.6 10 10.4 V5mA<IQ<400 mA
11 V <VI<40 V
Output current
limitation1) IQ400 600 – mA –
Current
consumption;
Iq=II–IQ
Iq– 100 220 µAIQ=1mA
Current
consumption;
Iq=II–IQ
Iq
Iq
–
–
8
20
15
30
mA
mA
IQ= 250 mA
IQ= 400 mA
Drop voltage1) Vdr – 250 500 mV IQ= 250 mA
Vdr =VI–VQ
Load regulation ∆VQ– 2050mVIQ=5mAto
400 mA
Line regulation ∆VQ– 1025mV∆Vl=12Vto32V
IQ=5mA
Power supply
ripple rejection PSRR –60–dBfr= 100 Hz;
Vr=0.5VSS
Temperature
output voltage
drift
–0.5–mV/K–
1) Measured when the output voltage VQhas dropped 100 mV from the nominal value obtained at VI= 13.5 V.
dVQ
dT
-----------
TLE 4274
Data Sheet Version 1.3 8 2000-10-10
Figure 3 Measuring Circuit
Figure 4 Application Circuit
TLE 4274
Input
Ι
100 nF
µ
100 F
V
Ι
C
Ι
Ι
2
1
C
22 F
µ
Q
3Q
Ι
AES01960
V
Q
R
L
Output
TLE 4274
C
Input
Ι
1
2AES01961
C
3
Q
Output
TLE 4274
Data Sheet Version 1.3 9 2000-10-10
Drop Voltage Vdr versus
Output Current IQ
Current Consumption Iqversus
Output Current IQ(high load)
Output Current IQversus
Input Voltage VI
Current Consumption Iqversus
Output Current IQ(low load)
Typical Performance Characteristics (V50, V85 and V10):
AED01962
0
0
dr
V
200
400
600
mV
500
300
100
T
j= 125 ˚C
Q
I
100 200 300 mA 400
= 25 ˚C
T
j
AED02267
0
0
Q
I
q
I
10
20
30
40
50
60
100 200 300 400 600
mA
I
V
= 13.5 V
mA
= 25 ˚C
T
j
AED01963
0
0
V
Q
= 0 V
= 25 ˚C
T
j
I
V
Q
I
10 20 30 40 50V
200
400
600
mA
800
AED02268
0
0
Q
I
q
I
0.1
0.2
0.3
0.4
0.5
0.6
10 20 30 40 mA 60
mA
I
V
= 13.5 V
= 25 ˚C
T
j
TLE 4274
Data Sheet Version 1.3 10 2000-10-10
Output Voltage VQversus
Junction Temperature Tj
Output Voltage VQversus
Input Voltage VI
Current Consumption Iqversus
Input Voltage VI
Input Current IIversus
Input Voltage VI
Typical Performance Characteristics (V50):
AED01966
-40 04080120 ˚C 160
4.8
j
T
Q
V
5.2
V
VI
= 13.5 V
4.9
5.0
5.1
AED01968
02468V10
0
Q
V
2
4
6
V
V
I
=
5
3
1
Q
V
T
j
= 25 ˚C
L
R
= 20 Ω
I
V
V
Q
00
20
30
10
mA
50
AED02269
q
Ι
10 20 30 V
R
L= 20 Ω
V
Ι
T
j= 25 C
AED01977
-50
-2
I
V
I
I
T
= 25 ˚C
L
R
= 6.8 k
-25 0 25 50
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
mA
V
Ω
j
TLE 4274
Data Sheet Version 1.3 11 2000-10-10
Output Voltage VQversus
Junction Temperature Tj
Output Voltage VQversus
Input Voltage VI
Current Consumption Iqversus
Input Voltage VI
Input Current IIversus
Input Voltage VI
Typical Performance Characteristics for V85:
AED01970
-40 04080120 ˚C 160
j
T
Q
V
8.4
8.6
V
V
I
= 13.5 V
8.3
8.2
8.5
8.7
8.8
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
jΩ
AED01972
Q
V
00
20
30
10
mA
50
AED02270
q
Ι
10 20 30 V
R
L
= 20
Ω
V
Ι
T
j
= 25 C
AED03051
-50
-2
I
V
I
I
T
= 25 ˚C
L
R
= 12 k
-25 0 25 50
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
mA
V
Ω
j
TLE 4274
Data Sheet Version 1.3 12 2000-10-10
Output Voltage VQversus
Junction Temperature Tj
Output Voltage VQversus
Input Voltage VI
Current Consumption Iqversus
Input Voltage VI
Input Current IIversus
Input Voltage VI
Typical Performance Characteristics for V10:
AED01974
-40 04080120 ˚C 160
9.7
j
T
Q
V
9.9
10.1
10.3
V
VI
= 13.5 V
10.2
9.8
10.0
AED01976
0481216 V20
0
Q
V
4
8
12
V
VI
=
10
6
2
Q
V
T
j
= 25 ˚C
L
R
= 34 Ω
I
V
V
Q
00
20
30
10
mA
50
AED02270
q
Ι
10 20 30 V
R
L
= 20
Ω
V
Ι
T
j
= 25 C
AED03048
-50
-2
I
V
I
I
T
= 25 ˚C
L
R
= 15 k
-25 0 25 50
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
mA
V
Ω
j
TLE 4274
Data Sheet Version 1.3 13 2000-10-10
Package Outlines
A
BA0.25 M
Typical
9.9±0.2
2.8
1)
15.65
±0.3
12.95
0...0.15
2.54
0.75±0.1
1.05
±0.11.27 4.4
B
9.25
±0.2
0.05
1)
All metal surfaces tin plated, except area of cut.
C
±0.2
17
±0.3
8.51)
10±0.2
3.7-0.15
C
2.4 0.5±0.1
±0.2
4.55
13.5
±0.5
3x
Metal surface min. x=7.25, y=12.3
0...0.3
2x
2.4
P-TO220-3-1
(Plastic Transistor Outline)
Sorts of Packing
Package outlines for tubes, trays etc. are contained in our
Data Book “Package Information”Dimensions in mm
TLE 4274
Data Sheet Version 1.3 14 2000-10-10
GPT09051
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
±0.1
max
per side 0.75
2.28
4.57
+0.08
-0.04
0.9
2.3
-0.10
+0.05
B
min0.51
±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.
3x
P-TO252-3-1
(Plastic Transistor Single Outline)
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 4274
Data Sheet Version 1.3 15 2000-10-10
8˚ max.
BA0.25 M0.1
Typical
±0.2
10
8.51)
7.551)
(15)
±0.2
9.25 ±0.3
1
0...0.15
5.08
2.54
0.75±0.1
1.05
±0.1
1.27 4.4
B
0.5±0.1
±0.3
2.7
4.7±0.5
0.05
1)
0.1
All metal surfaces: tin plated, except area of cut.
2.4
Metal surface min. x=7.25, y=6.9
A
0...0.3
B
GPT09057
P-TO263-3-1
(Plastic Transistor Single Outline)
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 4274
Data Sheet Version 1.3 16 2000-10-10
Edition 2000-10-10
Published by Infineon Technologies AG,
St.-Martin-Strasse 53,
D-81541 München
©Infineon Technologies AG 2000.
All Rights Reserved.
Attention please!
The information herein is given to describe
certain components and shall not be consid-
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Terms of delivery and rights to technical
change reserved.
We hereby disclaim any and all warranties,
including but not limited to warranties of non-
infringement, regarding circuits, descriptions
and charts stated herein.
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manufacturer.
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