Target Data Sheet Rev. 0.2 1 2001-10-10
5 V Low-Drop Voltage Regulator
Target Data Bipolar IC
Features
Output voltage tolerance ≤ ± 2%
150 mA current capability
Very low current consumption
Low-drop voltage
Overtemperature protection
Reverse polarity proof
Wide temperature range
Suitable for use in automotive electronics
Inhibit
New type
Type Ordering Code Package
TLE 4266-2 G Q67006-A9485 P-SOT223-4-2
TLE 4266-2 GS Q67006-A9486 P-TSOP-8-1
Functional Description
The TLE 4266-2 is a monolithic integrated low-drop fixed voltage regulator which can
supply loads up to 150 mA. It can be switched on and off by the INH pin. It is functional
compatible to the TLE 4266, but with a reduced quiescent current of <<1 µA in OFF
mode and 35 µA in ON mode. The TLE 4266-2 is especially designed for all applications
that require very low quiescent current in ON and OFF mode. The device is available in
the small surface mounted P-SOT223-4-2 and Micro-8 P-TSOP-8-1 package. In the P-
SOT223-4-2 housing it is pin compatible to the TLE 4266G. It is designed to supply
microprocessor systems under the severe condition of automotive applications and
therefore it is equipped with additional protection against over load, short circuit and
overtemperature. Of course the TLE 4266-2 can be used in other applications, where a
stabilized voltage and the inhibit feature is required.
And input voltage VI in the range of 5.5 V < VI < 45 V is regulated to VQ = 5 V with an
accuracy of ± 2%.
The device operates in the temperature range of Tj = – 40 to 150 °C. A High level at the
INH pin switches the regulator on.
SOT-223
P-TSOP-8-1
TLE 4266-2
TLE 4266-2
Target Data Sheet Rev. 0.2 2 2001-10-10
Figure 1 Pin Configuration (top view)
Pin Definitions and Functions TLE 4266-2 G
Pin Symbol Function
1IInput voltage; block to ground directly at the IC with a ceramic
capacitor.
2INH
Inhibit input; high level turns IC on.
3QOutput voltage; block to ground with a capacitor.
4GNDGround
AEP02872
ΙINH Q
GND
123
4
P-SOT223-4-2
TLE 4266-2
Target Data Sheet Rev. 0.2 3 2001-10-10
Figure 2 Pin Configuration (top view) (cont’d)
Pin Definitions and Functions TLE 4266-2 GS
Pin Symbol Function
1I Input voltage; block to ground directly on IC with a
ceramic capacitor
2INH Inhibit input; high level turns IC on.
3S Output voltage sense; connect to Q
4Q Output voltage; block to ground with a capacitor.
5, 6, 7, 8 GND Ground
AEP02873
1
2
3
45
6
7
8
Q
S
INH
ΙGND
GND
GND
GND
P-TSOP-8-1
TLE 4266-2
Target Data Sheet Rev. 0.2 4 2001-10-10
Figure 3 Block Diagram
GNDINH
Reference
Bandgap
Adjustment
Sensor
Temperature Saturation
Control and
Protection
Circuit
Control
Amplifier Buffer
GND
AEB02874
ΙQ
TLE 4266-2
Target Data Sheet Rev. 0.2 5 2001-10-10
Absolute Maximum Ratings
Tj = – 40 to 150 °C
Parameter Symbol Limit Values Unit Notes
min. max.
Input I
Voltage VI– 42 45 V –
Current II–– –internally limited
Inhibit INH
Voltage VINH – 42 45 V –
Output Q
Voltage VQ– 132 V –
Current IQ–– –internally limited
Output Voltage Sense S
Voltage VS– 132 V –
Current IS–– –internally limited
GND
Current IGND 50 –mA –
Temperature
Junction temperature Tj–150 °C–
Storage temperature TS– 50 150 °C–
Operating Range
Input voltage Vi5.5 45 V –
Junction temperature Tj– 40 150 °C–
TLE 4266-2
Target Data Sheet Rev. 0.2 6 2001-10-10
Thermal Resistance
Junction ambient Rthj-a –85 K/W P-SOT223-4-21)
Junction ambient Rthj-a –115 K/W P-TSOP-8-11)
Junction case Rthj-pin4 –20 K/W P-SOT223-4-2
Junction case Rthj-pin5-8 –29 K/W P-TSOP-8-1
Operating Range
Input voltage Vi5.5 45 V –
Junction temperature Tj– 40 150 °C–
1) Worst case, regarding peak temperature; zero airflow; mounted an a PCB 80 ×80 ×1.5 mm3, heat sink area
300 mm2.
Absolute Maximum Ratings
Tj = – 40 to 150 °C
Parameter Symbol Limit Values Unit Notes
min. max.
TLE 4266-2
Target Data Sheet Rev. 0.2 7 2001-10-10
Characteristics
VI = 13.5 V; – 40 °C ≤ Tj ≤ 125 °C
Parameter Symbol Limit Values Unit Test Condition
min. typ. max.
Output voltage VQ4.9 5 5.1 V 5 mA ≤ IQ ≤ 100 mA
6 V ≤ Vi ≤ 28 V
Output-current limitation IQ150 200 500 mA –
Current consumption
Iq = Ii – IQ
Iq–01 µAVINH = 0 V; Tj ≤ 100 °C
Current consumption
Iq = Ii – IQ
Iq–35 –µAIQ = 1 mA
Inhibit ON
Current consumption
Iq = Ii – IQ
Iq–28 mAIQ = 50 mA
Inhibit ON
Drop voltage VDr –0.25 0.5 V IQ = 100 mA1)
Load regulation ∆VQ–10 30 mV IQ = 1 to 100 mA
Vi = 6 V
Line regulation ∆VQ–10 40 mV VI = 6 V to 28 V
IQ = 1 mA
Supply-voltage rejection SVR –68 –dB fr = 100 Hz, Vr = 0.5 VPP
Output Capacitor CQ10 –– µF Low ESR tantalum or
ceramic capacitor
recommended
Output Series Resistance RQ +ESR 1.5 –5.5 ΩCQ= 10 µF
RQ +ESR 1.0 –5.5 ΩCQ= 22 µF
TLE 4266-2
Target Data Sheet Rev. 0.2 8 2001-10-10
Inhibit
Inhibit on voltage VINH, on 3.5 –– V–
Inhibit off voltage VINH, off ––1V–
Inhibit current IINH –48 µAVINH = 5 V
1) Drop voltage = Vi – VQ (measured when the output voltage VQ has dropped 100 mV from the nominal value
obtained at Vi = 13.5 V).
Characteristics
VI = 13.5 V; – 40 °C ≤ Tj ≤ 125 °C
Parameter Symbol Limit Values Unit Test Condition
min. typ. max.
TLE 4266-2
Target Data Sheet Rev. 0.2 9 2001-10-10
Figure 4 Measuring Circuit
Circuit Description and Application Information
In the TLE 4266-2 the output voltage is divided and compared to an internal reference of
2.5 V typical. The regulation loop controls the output to achieve an output voltage of 5 V
with an accuracy of ± 2% at an input voltage range of 5.5 V < VI < 45 V.
For stability of the control loop the TLE 4266-2 output requires an output capacitor CQ of
at least 10 µF and an additional output resistor RQ . The resistor should be 1.5 Ω when a
10 µF capacitor is used and 1.0 Ω for CQ ≥22µF. The sum of RQ and the ESR of the
capacitor must be kept below 5.5 Ω. In order to achieve this the use of low-ESR tantalum
or ceramic capacitors is recommended.
The TLE 4266-2 can supply up to 150 mA. However for protection reasons at high input
voltage above 25 V, the maximum output current is reduced (SOA protection).
At the input of the regulator an input capacitor is necessary for compensating line
influences. A resistor of approx. 1 Ω in series with CI, can damp any oscillation occuring
due the input inductivity and the input capacitor.
The TLE 4266-2 includes the Inhibit function. For a voltage above 3.5 V at the INH pin
the regulator is switched on.
Ι
Q
GND
INH
e.g. Kl. 15
Output
i
C
AES03126
10 µF
5.5 V to 45 V
Input
TLE 4266-2
Q
R= 1.5
Ω
TLE 4266-2
Target Data Sheet Rev. 0.2 10 2001-10-10
Package Outlines
±0.1
±0.2
±0.1
0.7
4
3
21
6.5
3
acc. to
+0.2
DIN 6784
1.6
±0.1
15˚max
±0.04
0.28
7±0.3
±0.2
3.5
0.5
0.1 max
min
B
M
0.25
B
A
2.3
4.6
A
M
0.25
P-SOT223-4-2
(Plastic Small Outline Transistor)
Weight approx. 0.15 g
GPS05560
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 4266-2
Target Data Sheet Rev. 0.2 11 2001-10-10
Package Outlines
0.1 max.
0.85
0.1
0.65
±0.1
3
GAUGE PLANE
0.125+0.08
4.9
6 max.
Index Marking
-0.05
0.32
±0.05
0.08 MABC
3
±0.1
2 x 4 TIPS
0.3
0.09
0.42
-0.1
+0.15
1.05 max.
±0.1
A
A
C
STAND OFF
B
B
AC
0.25
P-TSOP-8-1
(Plastic Thin Small Outline Package)
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 4266-2
Target Data Sheet Rev. 0.2 12 2001-10-10
Edition 2001-10-10
Published by Infineon Technologies AG,
St.-Martin-Strasse 53,
D-81541 München, Germany
© Infineon Technologies AG 2001.
All Rights Reserved.
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and charts stated herein.
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