AOZ1073 datasheet(3/15 Pages) AOSMD

3 / 15 page

Rev. 1.1 September 2008

www.aosmd.com

Page 3 of 15

AOZ1073

Block Diagram

Absolute Maximum Ratings

Exceeding the Absolute Maximum Ratings may damage the

device.

Note:

1. Devices are inherently ESD sensitive, handling precautions are

required. Human body model rating: 1.5k

Ω in series with 100pF.

Recommend Operating Ratings

The device is not guaranteed to operate beyond the Maximum

Operating Ratings.

Note:

2. The value of

JA is measured with the device mounted on 1-in

FR-4 board with 2oz. Copper, in a still air environment with

TA = 25°C. The value in any given application depends on the

user's speciﬁc board design.

500kHz/68kHz

Oscillator

AGND

PGND

VIN

COMP

OTP

Internal

+5V

ILimit

PWM

Control

Logic

5V LDO

Regulator

UVLO

& POR

Softstart

Reference

& Bias

0.8V

PWM

Comp

Level

Shifter

FET

Driver

ISen

EAmp

0.2V

–

Frequency

Foldback

Comparator

0.96V

–

OVP

Comparator

Parameter

Rating

Supply Voltage (VIN)

18V

LX to AGND

-0.7V to VIN+0.3V

EN to AGND

-0.3V to VIN+0.3V

FB to AGND

-0.3V to 6V

COMP to AGND

-0.3V to 6V

PGND to AGND

-0.3V to 0.3V

Junction Temperature (TJ)

+150°C

Storage Temperature (TS)

-65°C to +150°C

ESD Rating(1)

2.0kV

Parameter

Rating

Supply Voltage (VIN)

4.5V to 16V

Output Voltage Range

0.8V to VIN

Ambient Temperature (TA)

-40°C to +85°C

Package Thermal Resistance (

JA)

(2)

SO-8

87°C/W

Package Thermal Resistance (

JC)

SO-8

30°C/W

Package Power Dissipation (PD)

@ 25°C Ambient

SO-8

1.15W

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