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AOZ1280CI 数据手册 - Alpha & Omega Semiconductor（万代半导体）
制造商:
Alpha & Omega Semiconductor（万代半导体）
分类:
DC/DC转换器
封装:
SOT-23-6
描述:
1.2A,3V~26V,EZBuck系列DC-DC降压稳压器
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AOZ1280CI数据手册
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若手册格式错乱，请下载阅览PDF原文件
Rev. 1.1 August 2011 www.aosmd.com Page 1 of 13
AOZ1280
EZBuck™ 1.2 A Simple Buck Regulator
General Description
The AOZ1280 is a high efficiency, simple to use, 1.2 A
buck regulator which is flexible enough to be optimized
for a variety of applications. The AOZ1280 operates from
a 3 V to 26 V input voltage range, and provides up to
1.2 A of continuous output current. The output voltage is
adjustable down to 0.8 V. The fixed 1.5 MHz PWM
switching frequency reduces inductor size.
The AOZ1280 comes in a SOT23-6L package and is
rated over a -40 °C to +85 °C operating ambient
temperature range.
Features
3 V to 26 V operating input voltage range
240 m internal NMOS
High efficiency: up to 95 %
Internal compensation
1.2 A continuous output current
Fixed 1.5 MHz PWM operation
Internal soft start
Output voltage adjustable down to 0.8 V
Cycle-by-cycle current limit
Short-circuit protection
Thermal shutdown
Small size SOT23-6L
Applications
Point of load DC/DC conversion
Set top boxes
DVD drives and HDD
LCD Monitors & TVs
Cable modems
Telecom/Networking/Datacom equipment
Typical Application
Figure 1. 1.2 A Buck Regulator
LX
VIN
VIN
VOUT
FB
EN
GND
C2
10µF
C3
R1
R2
C1
4.7µF
L1 2.2µH
AOZ1280
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