Datasheet > AOZ1083

AOZ1083

更新时间： 2024-11-14 12:51:39

品牌	Logo	应用领域
美国万代 - AOS		驱动器
页数	文件大小	规格书
12页	578K
描述
1.2 A Buck LED Driver

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AOZ1083 数据手册

AOZ1083

1.2 A Buck LED Driver

General Description

Features

The AOZ1083 is a high efficiency, simple to use,

1.2 A buck HB LED driver optimized for general lighting

applications. The AOZ1083 operates from a 3 V to 26 V

input voltage range and provides up to 1.2 A of

continuous LED current. The 280 mV LED current

feedback voltage minimizes the power dissipation of the

external sense resistor. The fixed switching frequency of

1.5 MHz PWM operation reduces inductor and capacitor

sizes.

z Up to 26 V operating input voltage range

z 240 mΩ internal NMOS

z Up to 95 % efficiency

z Internal compensation

z 1.2 A continuous output current

z Fixed 1.5 MHz PWM operation

z Internal soft start

z 280 mV LED current feedback voltage with ±5 %

accuracy

The AOZ1083 is available in a tiny SOT23-6L package.

z Cycle-by-cycle current limit

z Short-circuit protection

z Thermal shutdown

z Small size SOT23-6L

Applications

z Point of load DC/DC conversion

z Set top boxes

z DVD drives and HDD

z LCD Monitors & TVs

z Cable modems

z Telecom/Networking/Datacom equipment

Typical Application

VIN

4.7µF

VIN

DIM

2.2µH

VOUT

AOZ1083

LED1

10µF

GND

Figure 1. 1.2 A Buck HB LED Driver

Rev. 1.0 July 2011

www.aosmd.com

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