TLE 7274

Data Sheet

7

Rev. 1.0, 2005-02-09

Application Information

TLE7274

Q

I

GND

2, Tab

AEA03614.VSD

Bandgap

Reference

Charge

Pump

Overtemperature

Shutdown

1

1

100

nF

V

Bat

3

470

nF

V

CC

4.7

µF

+

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

In contrast to most low drop voltage regulators the TLE 7274 only needs moderate

capacitance at the output to assure stability of the regulation loop. This offers more

design flexibility to the circuit designer providing for cost efficient solutions.

The TLE 7274 requires a ceramic output capacitor of at least 470 nF. 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.