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TLE7272 Datasheet

5-V Low Drop Voltage Regulator

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5-V Low Drop Voltage Regulator
TLE 7272
Features
www.DOatuaStphueett4vUo.lntaetge 5 V ±2%
• Ultra low current consumption: typ. 25µA
• 300 mA current capability
• Inhibit input
• Reset
• Very low-drop voltage
• Short-circuit-proof
• Suitable for use in automotive electronics
P-TO252-5-1
Functional Description
The TLE 7272 is a monolithic integrated low-drop
voltage regulator for load currents up to 300 mA. An input
voltage up to 42 V is regulated to VQ,nom = 5.0 V with a
precision of ±2%. Due to its integrated reset circuitry
featuring power on timing and output voltage monitoring
the IC is well suited as µ-controller supply. The
P-TO263-5-1
sophisticated design allows to achieve stable operation
even with ceramic output capacitors down to 470 nF. The
device is designed for the harsh environment of automotive applications. Therefore it is
protected against overload, short circuit and overtemperature conditions. Of course the
TLE 7272 can be used also in all other applications, where a stabilized 5 V voltage is
required. Due to its ultra low stand-by current consumption of typ. 20 µA the TLE 7272
is dedicated for use in applications permanently connected to VBAT. In addition the IC can
be switched off via the Inhibit input reducing the current consumption to typ. 5 µA. An
integrated output sink current circuitry keeps the voltage at the Output pin Q below 5.5
V even when reverse currents are applied. Thus connected devices are protected from
overvoltage damage. For applications requiring extremely low noise levels the Infineon
voltage regulator family TLE 42XY and TLE 44XY is more suited than the TLE 7272. A
mV-range output noise on the TLE 7272 caused by the charge pump operation is
unavoidable due to the ultra low quiescent current concept.
Type
TLE 7272 D
TLE 7272 G
Ordering Code
Q67006-A9734
Q67006-A9735
Package
P-TO252-5
P-TO263-5
Data Sheet
1 Rev. 1.0a, 2005-02-08


Infineon Technologies Electronic Components Datasheet

TLE7272 Datasheet

5-V Low Drop Voltage Regulator

No Preview Available !

TLE 7272
Reset
The Reset pin informs e.g. the microcontroller in case the output voltage has fallen below
the lower threshold VRT of typ. 4.65 V. The hysteresis is typically 100mV. Connecting the
regulator to a battery voltage at first the reset signal remains LOW. When the output
voltage has reached the reset threshold VRT the reset output RO remains still LOW for
the reset delay time trd (typ. 16 ms). Afterwards the reset output turns HIGH.
1
Bandgap
Reference
4 Inhibit
Charge
Pump
TLE 7272
Overtemperature
Shutdown
1
3
GND
Figure 1 Block Diagram
5Q
Reset
Generator
2 RO
AEB03523.VSD
Data Sheet
2 Rev. 1.0a, 2005-02-08


Part Number TLE7272
Description 5-V Low Drop Voltage Regulator
Maker Infineon Technologies
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TLE7272 Datasheet PDF





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