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The AOZ6643DI is a current-mode step down regulator
with integrated high-side NMOS switch and low-side
NMOS switch that operates up to 18V. The device is
capable of supplying 3A of continuous output current with
an output voltage adjustable down to 0.8V (±1.5%).
Features include, enable control, Power-On Reset, input
under-voltage lockout, output over-voltage protection,
internal soft-start and thermal shutdown.
The AOZ6643DI is available in a 3mm x 3mm DFN-8L
package and is rated over a -40°C to +85°C ambient
temperature range
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原厂标准完整型号: AOZ6643DI
制造厂家名称: Alpha & Omega Semiconductor Inc.
功能总体简述: IC REG BUCK ADJ 3A SYNC 8SOIC
系列: EZBuck?
功能: 降压
输出配置: 正
拓扑: 降压
输出类型: 可调式
输出数: 1
电压 - 输入（最小值）: 4.5V
电压 - 输入（最大值）: 18V
电压 - 输出（最小值/固定）: 0.8V
电压 - 输出（最大值）: 15.3V
电流 - 输出: 3A
频率 - 开关: 500kHz
同步整流器: 是
工作温度: -40°C ~ 85°C（TA）
安装类型: 表面贴装
封装/外壳: 8-SOIC（0.154"，3.90mm 宽）裸焊盘
供应商器件封装: 8-SO 裸露焊盘4.5V to 18V wide input voltage range
Low RDS(ON)internal NFETs
–80mhigh-side
–30mlow-side
Internal soft start
Output voltage adjustable down to 0.8V (±1.5%)
3A continuous output current
500kHz PWM operation
Cycle-by-cycle current limit
Ceramic capacitor stable
Pre-bias start-up
Extensive protection features
Small 3mm x 3mm DFN-8L package
Applications
Point-of-load DC/DC converters
LCD TVs
Cable modems
