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| TLE42694_14 Datasheet, PDF (3/33 Pages) Infineon Technologies AG – Low Dropout Fixed Voltage Regulator | |||
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TLE42694
Overview
comparator provides an early warning function: Any voltage (e.g. the input voltage) can be monitored, an under-
voltage condition is indicated by setting the comparatorâs output to low. The reset and sense output are internally
connected to the output Q via a pull-up resistor. If these integrated resistors are not desired, the TLE42794 can
be used instead of the TLE42694.
Dimensioning Information on External Components
The input capacitor CI is recommended for compensation of line influences. The output capacitor CQ is necessary
for the stability of the control loop.
Circuit Description
The control amplifier compares a reference 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 component also has a number of internal circuits for protection against:
⢠Overload
⢠Overtemperature
⢠Reverse polarity
Data Sheet
3
Rev. 1.3, 2014-07-03
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