AP2138/2139

Document number: DS37428 Rev. 5 - 2

2 of 29

www.diodes.com

August 2019

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AP2138/2139

Pin Assignments (continued)

(Top View)

(Top View)

(Top View)

SOT-89 (Option 2)/ R Package

SOT-89 (Option 1)/ RA Package

SOT-89 (Option 2)/ RA Package

Typical Applications Circuit (Note 4)

Note 4:

Filter capacitors are required at the AP2138/2139'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 0.01

Ω to 100Ω. Ceramic capacitors are recommended.

VIN

VOUT

GND

1

2

3

VIN

VOUT

GND

1

2

3

VIN

VOUT

GND

1

2

3