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TheAOZ6643DIisacurrent-modestepdownregulatorwithintegratedhigh-sideNMOSswitchandlow-sideNMOSswitchthatoperatesupto18V
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
原廠標準完整型號: AOZ6643DI
制造廠家名稱: Alpha & Omega Semiconductor Inc.
功能總體簡述: IC REG BUCK ADJ 3A SYNC 8SOIC
系列: EZBuck?
功能: 降壓
輸出配置: 正
拓撲: 降壓
輸出類型: 可調式
輸出數: 1
電壓 - 輸入(最小值): 4.5V
電壓 - 輸入(值): 18V
電壓 - 輸出(最小值/固定): 0.8V
電壓 - 輸出(值): 15.3V
電流 - 輸出: 3A
頻率 - 開關: 500kHz
同步整流器: 是
工作溫度: -40°C ~ 85°C(TA)
安裝類型: 表面貼裝
封裝/外殼: 8-SOIC(0.154",3.90mm 寬)裸焊盤
供應商器件封裝: 8-SO 裸露焊盤
?4.5V to 18V wide input voltage range
?Low RDS(ON)internal NFETs
–80m?high-side
–30m?low-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
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