TLE4266G Datasheet, PDF (3/9 Pages) Siemens Semiconductor Group – 5-V Low-Drop Voltage Regulator

TLE 4266
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 the series transistor via a buffer. Saturation control as a function of the load
current prevents any oversaturation of the power element. The IC also incorporates a
number of internal circuits for protection against:
q Overload
q Overtemperature
q Reverse polarity
1
Input
Temperature
Sensor
Adjustment
Bandgap
Reference
Control
Amplifier
Saturation
Control and
Protection
Circuit
Buffer
3
Output
2
Inhibit
4
GND
AEB01725
Block Diagram
Semiconductor Group
3
1998-11-01