Low-Drop Voltage Regulator TLE 4276
Data Sheet Version 2.2 1 2000-10-11
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 V Q67000-A9265 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 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-A9369 P-TO252-5-1
TLE 4276 DV Q67006-A9361 P-TO252-5-1
TLE 4276
Data Sheet Version 2.2 2 2000-10-11
Functional Description
The TLE 4276 is alow-drop voltage regulator ina TO package. The ICregulates an input
voltageupto40VtoVQ,nom = 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
←
A. The IC is short-circuit-
proof and includes temperature protection which turns off the device at overtemperature.
Dimensioning Information on External Components
The input capacitor CIis necessary for compensation of line influences. Using a resistor
of approx. 1
τ
in 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
←
F and an ESR of
3
τ
within the
operating temperature range.
Circuit Description
The control amplifier compares areference 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 2.2 3 2000-10-11
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.
2INHInhibit; low-active input
3GNDGround
4N.C.
VA Not connected for V50, V85, V10
Voltage Adjust Input; only for adjustable version connect an
external voltage divider to determine the output voltage.
5QOutput; block to ground with a capacitor of C
∫
22
←
F, ESR
∫
3
τ=
at 10 kHz.
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 2.2 4 2000-10-11
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 2.2 5 2000-10-11
Note: Maximum ratings are absolute ratings; exceeding any one of these values may
cause irreversible damage to the integrated circuit.
Absolute Maximum Ratings
Parameter Symbol Limit Values Unit Test Condition
min. max.
Voltage Regulator
Input I
Voltage VI–42 45 V–
Current II–––Internally limited
Inhibit INH
Voltage VINH –42 45 V –
Voltage Adjust Input VA
Voltage VVA –0.3 10 V –
Output Q
Voltage VQ–1.0 40 V –
Current IQ–––Internally limited
Ground GND
Current IGND –100 mA –
Temperature
Junction temperature Tj–40 150
C–
Storage temperature Tstg –50 150
C–
TLE 4276
Data Sheet Version 2.2 6 2000-10-11
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 Rthj-a –65 K/W TO220
Junction ambient Rthj-a –80 K/W TO252, TO2631)
Junction case Rthj-c –4K/W–
1) Package mounted on PCB 80
⌠
80
⌠
1.5mm3;35
←
Cu; 5
←
Sn; Footprint only; zero airflow.
TLE 4276
Data Sheet Version 2.2 7 2000-10-11
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 5.0 5.2 VV50-Version
5mA<IQ< 400 mA
6V<VI<28V
1
Output voltage VQ4.8 5.0 5.2 VV50-Version
5mA<IQ< 200 mA
6V<VI<40V
1
Output voltage VQ8.16 8.50 8.84 VV85-Version
5mA<IQ< 400 mA
9.5 V < VI<28V
1
Output voltage VQ8.16 8.50 8.84 VV85-Version
5mA<IQ< 200 mA
9.5 V < VI<40V
1
Output voltage VQ9.6 10.0 10.4 VV10-Version
5mA<IQ< 400 mA
11 V < VI<28V
1
Output voltage VQ9.6 10.0 10.4 VV10-Version
5mA<IQ< 200 mA
11 V < VI<40V
1
Output voltage
tolerance
α
VQ–4–4 % V-Version
R2<50k
τ
VQ+1V
VI
40 V
VI>4.5V
5mA
IQ
400 mA
1
Output current
limitation1) IQ400 600 1100 mA –1
Current
consumption;
Iq=II–IQ
Iq––10
←
AVINH =0V;
Tj
100
C1
Current
consumption;
Iq=II–IQ
Iq–100 220
←
AIQ=1mA 1
Current
consumption;
Iq=II–IQ
Iq–510mAIQ= 250 mA 1
TLE 4276
Data Sheet Version 2.2 8 2000-10-11
Current
consumption;
Iq=II–IQ
Iq–15 25 mA IQ= 400 mA 1
Drop voltage1) 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>4.5V
VDR =VI–VQ
1
Load regulation
α
VQ,Lo –535mVIQ=5mAto
400 mA 1
Line regulation
α
VQ,Li –15 25 mV
α
Vl=12Vto32V
IQ=5mA 1
Power supply
ripple rejection PSRR –54 –dB fr=100Hz;
Vr=0.5VSS
1
Temperature
output voltage
drift
dVQ/
dT –0.5 ––– mV/K
Inhibit
Inhibit on
voltage VINH –23.5VVQ
∫
4.9 V 1
Inhibit off
voltage VINH 0.5 1.7 –VVQ
0.1 V 1
Input current IINH 51020
←
AVINH =5V 1
1) Measured when the output voltage VQhas dropped 100 mV from the nominal value obtained at VI=13.5V.
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 2.2 9 2000-10-11
Figure 3 Measuring Circuit
Figure 4 Application Circuit
AES02045
INH
V
I
GND
V
Q
100 nF100 µF
Q
22 µF
C
Q
R
1
INH
I
I
2
R
R
L
OutputInput
TLE 4276
Optional for adjustable Voltage Regulator
Voltage
Adjust
VA
I
I I
Q
)
*
)
*
)
*
)
*
1
234
5
V
INH
AES02046
C
Q
R
1
2
R
Output
Input
TLE 4276
Optional for adjustable Voltage Regulator
I
C
Voltage
Adjust
e.g. KL 15
)
*
)
*
)
*
*)
I
1Q5
GND VA
4
3
2
INH
TLE 4276
Data Sheet Version 2.2 10 2000-10-11
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
external 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 (1)
Vref is typically 2.5 V.
To avoid errors caused by leakage current IVA, we recommend to choose the resistor
value R2according to Equation 2:
R2<50k
τ
(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 Vto 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
5
Vref
R2
R1CQ
22 µF
Q
VA
4
TLE 4276
Data Sheet Version 2.2 11 2000-10-11
Voltage VDR versus
Output Current IQ
Current Consumption Iqversus
Output Current IQ(high load)
Max. Output Current IQversus
Input Voltage VI
Current Consumption Iqversus
Output Current IQ(low load)
AED03017
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
AED03021
0
0
Q
I
q
I
100 200 300 400 600mA
j
T
= 25 ˚C
= 13.5 V
V
I
10
20
30
40
50
60
mA
AED03020
0
0
V
Q
= 0 V
= 25 ˚C
T
j
I
V
Q
I
10 20 30 40 50V
200
400
600
mA
800
AED03022
0
0
Q
I
q
I
10 20 30 40 60mA
j
T
= 25 ˚C
= 13.5 V
V
I
0.1
0.2
0.3
0.4
0.5
0.6
mA
Typical Performance Characteristics (V50, V85 and V10):
TLE 4276
Data Sheet Version 2.2 12 2000-10-11
Output Voltage VQversus
Temperature Tj
Low Voltage Behavior
Current Consumption Iqversus
Input Voltage VI
High Voltage Behavior
AED03081
-40 04080120 ˚C 160
4.8
j
T
Q
V
5.2
V
V
I
= 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
AED01967
q
Ι
10 20 30 V
R
L
=20Ω
V
Ι
T
j
= 25 C
AED03082
-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
Typical Performance Characteristics for V50:
TLE 4276
Data Sheet Version 2.2 13 2000-10-11
Output Voltage VQversus
Temperature Tj
Low Voltage Behavior
Current Consumption Iqversus
Input Voltage VI
High Voltage Behavior
AED03018
-40 04080120 ˚C 160
7.5
j
T
Q
V
8.0
8.5
9.0
V
V
I
= 13.5 V
6
4
08
0
2
4R
T
Q
V
Q
V
8
Ι=V
V
10
12
V
16
12 20
VΙ
= 25 C
= 34
L
jΩ
AED01972
Q
V
AED03025
0 10 20 30 40 V50
0
10
20
30
mA
25
15
5
I
V
I
q
T
j= 25 ˚C
L
R
= 34 Ω
AED03080
-50
-2
I
V
I
I
T
= 25 ˚C
L
R
= 10 k
-25 0 25 50
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
mA
V
Ω
j
Typical Performance Characteristics for V85:
TLE 4276
Data Sheet Version 2.2 14 2000-10-11
Output Voltage VQversus
Temperature Tj
Low Voltage Behavior
Current Consumption Iqversus
Input Voltage VI
High Voltage Behavior
AED03019
-40 04080120 ˚C 160
9.0
j
T
Q
V
9.5
10.0
10.5
V
VI
= 13.5 V
AED03024
0481216 V20
0
Q
V
4
8
12
V
VI
=
10
6
2
Q
V
T
j
= 25 ˚C
L
R
= 40 Ω
I
V
V
Q
AED03023
0 10 20 30 40 V50
0
10
20
30
mA
25
15
5
I
V
I
q
T
j
= 25 ˚C
L
R
= 40
Ω
AED03079
-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
Typical Performance Characteristics for V10:
TLE 4276
Data Sheet Version 2.2 15 2000-10-11
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 2.2 16 2000-10-11
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 2.2 17 2000-10-11
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
±0.29.2±0.41.5 (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 2.2 18 2000-10-11
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 2.2 19 2000-10-11
Edition 2000-10-11
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-
ered as warranted characteristics.
Terms of delivery and rights to technical
change reserved.
We hereby disclaim any and all warranties,
including butnot limited to warranties of non-
infringement, regarding circuits, descriptions
and charts stated herein.
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manufacturer.
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Due to technical requirements components
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InfineonTechnologiesComponentsmayonly
be used in life-support devices or systems
with the express written approval of Infineon
Technologies,ifafailureofsuchcomponents
canreasonablybeexpectedtocausethefail-
ureofthatlife-supportdeviceorsystem,orto
affect the safety or effectiveness of that de-
vice or system.Life support devices orsys-
tems are intended to be implanted in the hu-
man body, or to support and/or maintain and
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