AOZ1935

Rev. 1.0 August 2010

www.aosmd.com

Page 3 of 14

Pin Configuration

Pin Description

*S3 is only for the AOZ1935.

Pin Number

Pin Name

Pin Function

1, 2

LX

Switching node of the step-up converter

3

PWM

Pulse width controlled dimming input. Connect this pin to AVCC when not used

4, 5

NC

Not internally connected

6

EN

IC enable

7

GND

Analog Ground pin

8

S3*

Regulated output current sink #3*

9

S2

Regulated output current sink #2

10

S1

Regulated output current sink #1

11

VOUT

Output voltage sense pin

12

OV

Over voltage feedback sense pin. Programmable with a resistor divider, this pin has an

internal 1.2V threshold

13

VIN

Boost converter power supply’s input voltage sense pin

14

AVCC

Input supply pin for the IC

15, 16

PGND

Power Ground pin

PAD

Exposed Backside Paddle. Connect to ground for electrical and thermal usage. PAD is

internally connected to Analog Ground pin.

3x3 QFN-16

(Bottom View)

1

12

2

11

3

10

OV

VOUT

S1

LX

LX

PWM

4

9

NC

S2

PAD

13

VIN

14

15

16

8

7

6

5

NC

EN

GND

S3*

AVCC PGND PGND