Q67006-A9355 데이터 시트보기 (PDF) - Siemens AG

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Q67006-A9355

5-V Low-Drop Voltage Regulator

Siemens AG 

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

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