TLE 4270-2D Infineon Technologies, TLE 4270-2D Datasheet - Page 3

• Manufacturer Part Number: TLE 4270-2D
• Manufacturer: Infineon Technologies

Specifications of TLE 4270-2D

• Packages: PG-TO252-5
• Regulator Type: single output
• Output Voltage: 5V
• Accuracy: 2.0 %
• Max. Output Current: 550mA
• Dropout Voltage: 350mV

Circuit Description
The control amplifier compares a reference voltage, which is kept highly accurate by
resistance adjustment, to a voltage that is proportional to the output voltage and drives
the base of a series transistor via a buffer. Saturation control as a function of the load
current prevents any over-saturation of the power element.
The IC also incorporates a number of internal circuits for protection against:
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Application Description
The IC regulates an input voltage in the range of 5.5 V <
to 26 V it produces a regulated output current of more than 650 mA. Above 26 V the
save-operating-area protection allows operation up to 36 V with a regulated output
current of more than 300 mA. Overvoltage protection limits operation at 42 V. The
overvoltage protection hysteresis restores operation if the input voltage has dropped
below 36 V. A reset signal is generated for an output voltage of
power-on reset can be set externally with a capacitor.
Data Sheet
Overload
Overvoltage
Overtemperature
Reverse polarity
3
V
I
< 36 V to
V
Q
< 4.5 V. The delay for
Rev. 1.8, 2007-11-09
V
Q,nom
TLE 4270-2
= 5.0 V. Up