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APE8805A

Typical Application Circuit

APE8805A

VIN

GND

SHDN

VOUT

BP

V

IN

V

SHDN

V

OUT

C

IN

C

OUT

C

BP

Figure 2. Typical Application Circuit of

APE8805A

Note：To prevent oscillation, it is recommended to use minimum 1µF X7R or X5R dielectric capacitors if ceramics are

used as input/output capacitors.

Functional Pin Description

Pin Name

Pin Function

VIN

Power is supplied to this device from this pin which is required an input filter capacitor. In general, the input

capacitor in the range of 1µF to 10µF is sufficient.

VOUT

The output supplies power to loads. The output capacitor is required to prevent output voltage from oscillation.

The

APE8805A is stable with an output capacitor 1µF or greater. The larger output capacitor will be required for

application with larger load transients. The large output capacitor could reduce output noise, improve stability,

and PSRR.

GND

Common ground pin

BP

Reference Noise Bypass , the Bypass Capacitor >= 1nF

SHD N

Chip Enable (Active High)

Block Diagram

Error

Amp

Current

Limit

Thermal

Shutdown

_

+

Vref

1.2V

VIN

VOUT

GND

RSEN

PMOS

R1

R2

Power

Shutdown

SHDN

BP

Figure 3. Block Diagram of

APE8805A

Advanced Power

Electronics Corp.