Data Sheet Rev. 1.0 1 2001-11-27
Functional Description
The TLE 4264-2 is a monolithic integrated low-drop fixed voltage regulator which can
supply loads up to 150 mA. It is functional compatible to the TLE 4264, but has a
reduced qu iescent current of typ. 40 µA. The TLE 4264-2 is especially designed for all
applications which require extreme low quiescent currents. The device is available in the
small P-SOT223-4-1 and P-TSOP-8-1 SMD packages. Using the device in the
P-SOT223-4-1 it is pin compatible to the TLE 4264. The regulator is designed to supply
microprocessor systems under the severe condition of automotive applications and is
therefore equipped with additional protection against overload, short-circuit and
overtemperature. Of course the TLE 4264-2 can be used in all other applications,
wherever a stabilized voltage is required.
An input voltage VI in th e range of 5. 5 V < VI < 45 V is regulated to VQ,nom = 5 V with an
accuracy of ± 2%.
The device operates in the temperature range of Tj = – 40 to 150 °C.
5-V Low-Drop Fixed-Voltage Regulator
SOT-223
P-TSOP-8-1
Features
•Output voltage tolerance ≤ ± 2%
•150 mA current capability
•Low-drop voltage
•Very low current consumption: 40 µA
•Overtemperature protection
•Short-circuit proof
•Suitable for use in automotive electronics
•Reverse polarity proof
Type Ordering Code Package
TLE 4264-2 G Q67006-A9483 P-SOT223-4-1
TLE 4264-2 GS Q67006-A9484 P-TSOP-8-1
TLE 4264-2
TLE 4264-2
Data Sheet Rev. 1.0 2 2001-11-27
Figure 1 Pin Configuration (top view)
Pin Definitions and Functions
Pin Symbol Function
1I Input voltage; block to ground directly with a ceramic
capacitor
2, 4 GND Ground
3Q 5-V output voltage; block to ground with a capacitor
P-SOT223-4-1
AEP02868
123
4
GNDΙQ
GND
TLE 4264-2
Data Sheet Rev. 1.0 3 2001-11-27
Figure 2 Pin Configuration (top view) (cont‘d)
Circuit Description
The control amplifier compares a reference voltage, which is kept highly precise by
resistance adjustment, to a volt age that is proportion al to the output voltag e and drives
the base of the series transistor via a buffer. Saturation control, working as a function of
load current, prevents any over-satura tion of the power element. The IC is ad ditionally
protected against overload, overtemperature and reverse polarity.
Pin Definitions and Functions
Pin Symbol Function
1I Input voltage; block to ground directly with a ceramic
capacitor
2 N.C. Not Connected
3S Output voltage sense; connect to Q
4Q 5-V output voltage; block to ground with a capacitor
5, 6, 7, 8 GND Ground
AEP02869
1
2
3
45
6
7
8
Q
S
N.C.
ΙGND
GND
GND
GND
P-TSOP-8-1
TLE 4264-2
Data Sheet Rev. 1.0 4 2001-11-27
Figure 3 Block Diagram
Saturation
Control and
Protection
Temperature
Sensor
Adjustment Bandgap
Reference
Q
GND
Ι
Input
GND
Output
AEB02870
Circuit
Amplifier
Control Buffer
TLE 4264-2
Data Sheet Rev. 1.0 5 2001-11-27
Absolute Maximum Ratings
Parameter Symbol Limit Values Unit Notes
min. max.
Input I
Input voltage VI –42 45 V –
Input current II–– –limited internally
Output Q
Output vol tage VQ–132 V–
Output current IQ–– –limited internally
Output Voltage Sense S
Sense voltage VS–132 V–
Output current IS–– –limited internally
Ground GND
Current IGND 50 –mA –
Temperatures
Junction temperature Tj–150 °C–
Storage temperature Tstg –50 150 °C–
TLE 4264-2
Data Sheet Rev. 1.0 6 2001-11-27
Thermal Resistances
Junction-ambient Rthj-a –164 K/W P-SOT223-4-11)
Rthj-a –81 K/W P-SOT223-4-1, 300 mm2 heat
sink ar ea
Junction-pin Rthj-p –17 K/W P-SOT223-4-12)
Junction-ambient Rthj-a –170 K/W P-TSOP-8-11),
115 K/W P-TSOP-8-1,300 mm2 heat sink
area
Junction-pin Rthj-p –29 K/W P-TSOP-8-1
Operating Range
Input voltage VI 5.5 45 V –
Junction temperature Tj–40 150 °C–
1) Package mounted on PCB 80 ×80 ×1.5mm3; 35µ Cu; 5µ Sn; Footprint only; zero airflow.
2) Measured to pin 4.
Absolute Maximum Ratings
TLE 4264-2
Data Sheet Rev. 1.0 7 2001-11-27
Characteristics
VI = 13.5 V; –40 °C ≤ Tj ≤ 125 °C, unless specified otherwise
Parameter Symbol Limit Values Unit Test Conditions
min. typ. max.
Output vol tage VQ4.9 5.0 5.1 V 5 mA ≤ IQ ≤ 100 mA
6V
≤ VI ≤ 21 V
Output-current
limiting IQ150 200 500 mA –
Current consumption
Iq = II –IQIq–40 60 µAIQ = 100 µA,
Tj ≤ 85 °C
–40 70 µAIQ = 100 µA,
Current consumption
Iq = II –IQIq–1.6 4 mA IQ = 50 mA
Drop vol tage Vdr –0.25 0.5 V IQ = 100 mA1)
Load regulation ∆VQ, lo –10 30 mV IQ = 1 to 100 mA
VI = 6 V
Line re gulation ∆VQ, li –10 40 mV VI = 6 to 28 V
IQ = 1 mA
Power Supply
Ripple Rejection PSRR –68 –dB fr = 100 Hz
Vr = 0.5 Vpp
Output Ca pac itor CQ10 ––µF Low ESR tantalum or
ceramic cap aci tor
recommended
Output Series
Resistance RQ +ESR 1.5 –5.5 ΩCQ= 10 µF
RQ +ESR 1.0 –5.5 ΩCQ= 22 µF
1) Drop voltage = VI –VQ (measured where VQ has dropped 100 mV from the nominal value obtained at VI =
13.5 V)
TLE 4264-2
Data Sheet Rev. 1.0 8 2001-11-27
Application Information
Figure 4 Application Circuit
In the TLE 4264-2 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 4264-2 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 4264-2 can supply up to 150 mA. However for protection for high input voltage
above 25 V, the 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.
AES03124
TLE 4264-2
Output
Q
GND
Ι
µ10 F
Input
5.5 to 45 V
100 nF470 Fµ
Q
R= 1.5
Ω
TLE 4264-2
Data Sheet Rev. 1.0 9 2001-11-27
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-SOT223-4-4
(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 4264-2
Data Sheet Rev. 1.0 10 2001-11-27
P-TSOP-8-1
(Plastic Thin Small Outline Package)
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
GPX09260
Sorts of Packing
Package outlines for tubes, trays etc. are contained in our
Data Book “Package Information”Dimensions in mm
SMD = Surface Mounted Device
Edition 2001-11-27
Published by Infineon Technologies AG,
St.-Martin-Strasse 53,
D-81541 München, Germany
© Infineon Technologies AG 2001.
All Rights Reserved.
Attention please!
The information herein is given to describe
certain components and shall not be consid-
ered as warranted character istic s.
Terms of delivery and rights to technical
change reserved.
We hereby disclaim any and all warranties,
including but not limited to warranties of
non-infringe ment, regarding circuits, descrip-
tions and charts stated herein.
Infineon Technologies is an approved CECC
manufacturer.
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For further information on technology, deliv-
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Due to technical require men ts com ponents
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Infineon Technologies Components may only
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Technologies, if a failure of such components
can reasonably be expected to cause the fail-
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man body, or to support and/or maintain and
sustain and/or protect human life. If they fail, it
is reasonable to assume that the health of the
user or other persons may be endangered.
Data Sheet Rev. 1.0 11 2001-11-27
TLE 4264-2
