参数资料
型号: AOZ1039DI
厂商: Alpha & Omega Semiconductor Inc
文件页数: 1/13页
文件大小: 0K
描述: IC REG BUCK SYNC ADJ 8A 8DFN
标准包装: 3,000
系列: EZBuck™
类型: 降压(降压)
输出类型: 可调式
输出数: 1
输出电压: 0.8 V ~ 1.2 V
输入电压: 4.5 V ~ 18 V
PWM 型: 电流模式
频率 - 开关: 450kHz
电流 - 输出: 8A
同步整流器:
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-SMD,扁平引线裸焊盘
包装: 带卷 (TR)
供应商设备封装: 8-DFN(5x6)
AOZ1039DI
EZBuck? 8 A Synchronous Buck Regulator
General Description
The AOZ1039DI is a high efficiency, easy to use, 8 A
synchronous buck regulator. The AOZ1039DI provides
up to 8 A of continuous output current with an output
voltage adjustable from 1.2 V to 0.8 V when the input
power rail is 12 V. For higher output voltage and/or lower
input voltage, the output current should be derated
according to thermal performance.
The AOZ1039DI comes in a DFN5x6 is rated over a
-40 °C to +85 °C operating ambient temperature range.
Features
4.5 V to 18 V operating input voltage range
Synchronous Buck: 70 m ? internal high-side switch
and 11 m ? internal low-side switch (at 12 V)
Up to 95% efficiency
Internal soft start
Output voltage adjustable to 0.8 V
8 A continuous output current
Cycle-by-cycle current limit
Pre-bias start-up
Short-circuit protection
Thermal shutdown
Applications
Point of load DC/DC converters
LCD TV
Set top boxes
DVD and Blu-ray players/recorders
Cable modems
Typical Application
VIN = 12V
C1
22μF
VIN
L1
1μH
R C
EN
COMP
AOZ1039
LX
FB
R1
VOUT
C2, C3, C4
22μF
C C
AGND
PGND
R2
Figure 1. 1.05 V 8 A Synchronous Buck Regulator, Fs = 450 kHz
Rev. 1.2 September 2011
www.aosmd.com
Page 1 of 13
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