TLE 4264-2

Data Sheet

3

Rev. 2.6, 2008-03-10

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.

Figure 2

Block Diagram

Saturation

Control and

Protection

Temperature

Sensor

Adjustment

Bandgap

Reference

Q

GND

Ι

Input

GND

Output

AEB02870

Circuit

Amplifier

Control

Buffer