TLE7272

Overtemperature

Shutdown

1

Bandgap

Reference

Charge

Pump

Inhibit

3

GND

AEA03522.VSD

INH

4

1

I

100

nF

V

Bat

e. g.

Ignition

Reset

Generator

5

2

Q

RO

470

nF

22

k

Ω

4.7

µF

V

CC

Reset

Data Sheet

8

Rev. 1.0a, 2005-02-08

TLE 7272

Figure 3

Application Diagram

Input, Output

An input capacitor is necessary for damping line influences. A resistor of approx. 1

Ω in

series with

C

The TLE 7272 requires a ceramic output capacitor of at least 470 nF to assure stability

of the regulation loop. In order to damp influences resulting from load current surges it is

recommended to add an additional electrolytic capacitor of 4.7

µF to 47 µF at the output

as shown in Figure 3.