AP1513

Document number: DS31053 Rev. 5 - 2

2 of 9

www.diodes.com

December 2017

© Diodes Incorporated

AP1513

Pin Descriptions

Pin Number

Pin Name

Description

1

FB

Feedback pin

2

EN

Power-off pin

H: Normal operation

(Step-down operation)

L: Step-down operation stopped

(All circuits deactivated)

3

OCSET

Add an external resistor to set max output current

4

VCC

IC power supply pin

5, 6

Output

Switch Pin. Connect external inductor/diode here. Minimize trace area at this pin to reduce EMI

7, 8

VSS

GND Pin

Functional Block Diagram

Oscillation

Circuit

Reference Voltage Source

PWM-Switched

Control Circuit

+

-

Vss

V

EN

EN

100uA

OCSET

FB

Vcc

Thermal

Shutdown

Output

Absolute Maximum Ratings

Symbol

Parameter

Rating

Unit

VCC

VCC Pin Voltage

VSS - 0.3 to VSS + 20

V

VFB

FB Pin Voltage

VSS - 0.3 to VCC

V

VEN

EN Pin Voltage

VSS - 0.3 to VIN + 0.3

V

VOUT

Output Pin Voltage

VSS - 0.3 to VIN + 0.3

V

PD

Power Dissipation

Internally Limited

mW

TJ

Operating Junction Temperature Range

-40 to +125

°C

TST

Storage Temperature Range

-40 to +150

°C

Caution:

The absolute maximum ratings are rated values exceeding which the product could suffer physical damage. These values must therefore not be exceeded

under any conditions.