Diodes AP2121 Manuel d'utilisateur télécharger pdf (Page 24)

Data Sheet

24

Dec. 2012 Rev. 2. 6 BCD Semiconductor Manufacturing Limited

HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR AP2121

Typical Application

Figure 25. Typical Application of AP2121

Note: Filter capacitors are required at the AP2121's input and output. 1μF capacitor is required at the input. The

minimum output capacitance required for stability should be more than 1μF with ESR from 0.01Ω to 100Ω.

Ceramic capacitors are recommended.

V

IN

AP2121-1.2

C

IN

1μF

C

OUT

1μF

V

OUT

V

IN

V

OUT

GND

V

IN

AP2121-3.0

C

IN

1μF

C

OUT

1μF

V

OUT

V

IN

V

OUT

GND

CE

NC

V

IN

=2.2V

V

OUT

=1.2V

V

OUT

=3VV

IN

=4V

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