AOZ1084

Rev. 0.3 April 2012

www.aosmd.com

Page 2 of 12

Ordering Information

AOS Green Products use reduced levels of Halogens, and are also RoHS compliant.

Pin Configuration

Pin Description

Part Number

Ambient Temperature Range

Package

Environmental

AOZ1084DI

-40 °C to +85 °C

DFN2x2-8L

Green Product

Pin Number

Pin Name

Pin Function

1

LX

PWM output connection to inductor.

2VIN

Supply voltage input. Input range from 4.5V to 36V. When VIN rises above the UVLO

threshold the device starts up.

3VIN

Supply voltage input. Input range from 4.5V to 36V. When VIN rises above the UVLO

threshold the device starts up.

4

DIM

PWM dimming pin. This pin is active high.

5FB

LED current feedback. The FB pin regulation voltage is 160mV. Connect an external

sense resistor between the cathode of the LED string and GND to set LED current.

6

GND

Ground.

7

GND

Ground.

8

BST

Bootstrap voltage input. High side driver supply. Connected to 10nF capacitor between

BST and LX.

Exposed Pad

EPAD

Thermal exposed pad. Pad cam be connected to GND if necessary for improved thermal

performance.

BST

GND

GND

FB

LX

VIN

VIN

DIM

DFN2x2-8

(Top View)

1

2

3

4

8

7

6

5