TLE4253

Application Information

Data Sheet

18

Rev. 1.2, 2009-11-09

Figure 5

Application circuit: Output voltage

V

For output voltages higher than the reference voltage, the voltage divider has to be applied between the feedback

and the output according to Figure 5. The equation for the output voltage with respect to the reference voltage is

given by:

Keep in mind that the input voltage has to be at minimum equal to the output voltage plus the dropout voltage of

the regulator.

With a given reference voltage

V

for

R2

4

ADJ

IFB

Q

EN/

GND

TLE 4253 G

8

2, 3, 6, 7

5

1

µC, e.g. C167

VDD

I/O

Main µC supply, e.g.

TLE4271-2

TLE4278

TLE4470

etc.

IQ

GND

VBAT

VQ > VREF

VREF

R1

FB

R2

FB

+

---------------------------------





⋅

=

–

---------------------------





⋅

=