AP3598A datasheet(3/28 Pages) DIODES

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AP3598A

Document number: DS37261 Rev. 2 - 2

3 of 28

www.diodes.com

November 2014

AP3598A

A Product Line of

Diodes Incorporated

Pin Descriptions

Pin Number

Pin Name

Function

BOOT1

High side gate driver supply of phase 1

HGATE1

High side gate driver output of phase 1

Enable input

PSI

Power saving interface

VID

Voltage ID input

REFADJ

Reference adjustment output

REFIN

External reference input

VREF

Output reference voltage. This is high precision voltage reference

Frequency selection. Connect a resistor from this pin to GND to select the

switching frequency

GNDSNS

GND sense. Negative node of the remote voltage sense

VSNS

VOUT sense. Positive node of the remote differential voltage sense

COMP

Compensation. Use this pin in combination with VSNS to compensate the

feedback loop of the converter

TSNS

Temperature sensing input

TALERT#

Thermal alert. Active low open drain output

VCC

Supply voltage

PGOOD

Open drain power good output

HGATE2

High side gate driver output of phase 2

BOOT2

High side gate driver supply of phase 2

PHASE2

Switch node of phase 2

LGATE2

Low side gate driver output of phase 2

PVCC

Driver supply voltage

GND

Ground. Must be connected to GND on PCB

LGATE1

Low side gate driver output of phase 1

PHASE1

Switch node of phase 1

THERM/GND

Thermal connection to the PCB. Must be connected to GND on PCB

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