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February 2006

www.aosmd.com

Page 2 of 21

Ordering Information

Part Number

Ambient Temperature Range

Package

Environmental

AOZ1014AI

-40°C to +85°C

SO-8

RoHS

AOZ1014DI

-40°C to +85°C

DFN-8

RoHS

Pin Configuration

1

2

3

4

8

7

6

5

VIN

AGND

COMP

LX

LX

EN

FB

PGND

SO-8

1

2

3

4

8

7

6

5

VIN

AGND

COMP

LX

LX

EN

FB

PGND

LX

AGND

DFN-8

Pin Description

Pin Number

Pin Name

Pin Function

1

VIN

Supply voltage input. When VIN rises above the UVLO threshold the

device starts up.

2

PGND

Power ground. Electrically needs to be connected to AGND.

3

AGND

Reference connection for controller section. Also used as thermal

connection for controller section. Electrically needs to be connected

to PGND.

4

FB

The FB pin is used to determine the output voltage via a resistor

divider between the output and GND.

5

COMP

External loop compensation pin.

6

EN

The enable pin is active high. Connect EN pin to VIN if not used. Do

not leave the EN pin floating.

7,8

LX

PWM output connection to inductor. Thermal connection for output

stage.

Absolute Maximum Ratings

(1)

Recommend Operating Ratings

(2)

Parameter

Units

Parameter

Units

Supply Voltage (V

18V

Supply Voltage (V

4.5V to 16V

LX to AGND

-0.7V to V

Output Voltage Range

0.8V to V

IN

EN to AGND

-0.3V to V

Ambient Temperature (T

-40°C to +85°C

FB to AGND

-0.3V to 6V

COMP to AGND

-0.3V to 6V

Package Thermal Resistance

SO-8 (

Θ

DFN-8 (

Θ

82° C/W

50° C/W

PGND to AGND

-0.3V to +0.3V

Junction Temperature (T

+150°C

Storage Temperature (T

-65°C to +150°C

ESD Rating(3)

2kV