TLE4264-2 Datasheet, PDF (3/12 Pages) Infineon Technologies AG – 5-V Low-Drop Fixed-Voltage Regulator

TLE 4264-2
Circuit Description
The control amplifier compares a reference voltage, which is kept highly precise by
resistance adjustment, to a voltage that is proportional to the output voltage and drives
the base of the series transistor via a buffer. Saturation control, working as a function of
load current, prevents any over-saturation of the power element. The IC is additionally
protected against overload, overtemperature and reverse polarity.
Input ^Ι
Adjustment
Temperature
Sensor
Bandgap
Reference
Saturation
Control and
Protection
Circuit
Control
Amplifier
Buffer
Q
Output
GND
GND
AEB02870
Figure 3 Block Diagram
Data Sheet Rev. 2.3
3
2002-12-21