Diodes AP2552/ AP2553/ AP2552A/ AP2553A User Manual download pdf (Page 2)

AP2552/AP2553/AP2552A/AP2553A

Document number: DS35404 Rev. 8 - 2

2 of 16

www.diodes.com

February 2014

P2552/ AP2553/ AP2552A/ AP2553A

Typical Applications Circuit

120µF Output Capacitance is a Requirement of USB

Available Options

Part Number Channel Enable Pin (EN)

Recommended Maximum

Continuous Load Current (A)

Current-Limit

Protection

Package

AP2552 1 Active Low

2.1 Constant-Current

U-DFN2020-6

SOT26

AP2553 1 Active High

AP2552A 1 Active Low

2.1 Latch-Off

U-DFN2020-6

SOT26

AP2553A 1 Active High

Pin Descriptions

Name

Pin Number

I/O Function

AP2552W6-7 AP2553W6-7 AP2552FDC-7 AP2553FDC-7

IN 1 1 6 6 I

Input, connect a 0.1µF or greater ceramic capacitor from

IN to GND as close to IC as possible.

GND 2 2 5 5 — Ground, connect to external exposed pad.

3 — 4 — I Enable input, logic low turns on power switch.

EN — 3 — 4 I Enable input, logic high turns on power switch.

FAULT

4 4 3 3 O

Active-low open-drain output, asserted during over-

current, over-temperature, or reverse-voltage conditions.

ILIM 5 5 2 2 O

Use external resistor to set current-limit threshold;

recommended 10k≦RLIM≦232k.

OUT 6 6 1 1 O Output

Exposed

Pad

— — Pad Pad —

No internal connection; recommend to connect to GND

externally for improved power dissipation. . It should not

be used as electrical ground conduction path.

1 2 3 4 5 6 7 ... 15 16

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