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SC402B

 2016-08-24

【產品特性】

Input voltage — 3V to 28V
Integrated bootstrap switch
Smart power-save protection
Confi gurable 200mA LDO with bypass capability
TC compensated RDS(ON) sensed current limit
Pseudo-fi xed frequency adaptive on-time control
Designed for use with ceramic cap
Designed for use with ceramic capacitors
Programmable VIN UVLO threshold
Independent enable for switcher and LDO
Selectable ultra-sonic power-save
Internal soft-start and soft-shutdown at output
Internal reference — 1% tolerance
Over-voltage/under-voltag

【產品應用】

Notebook, desktop, tablet, and server computers
Networking and telecommunication equipment
Printers, DSL, and STB applications
Embedded applications
Power supply modules
Point of load power supplies

【文字介紹】

SC402B是一個高性能10安培非隔離式的同步降壓器, 特色是控制IC + BOOTSTRAP Switch + MOSFET + 可調整的LDO整個包裝在一個MLPQ5x5mm-32-pin的IC裡.可以在很小的PCB空間範圍內得到很穩定且很好的效率表現.特殊的pseudo-fixed控制調變脈波寬度調變使出可以在負載瞬間快速變化之下得到很穩定的輸出電壓.且輸出可以支援任何形式的電容.
在電源保護方面包含了cycle-by-cycle可程式的過電流保護,柔和性啟動/關閉機制,智慧型的過電壓保護裝置,可程式的省電模式裝置.輸入寬壓達3V-28V.可以輕易的應用在低成本單顆或多串的電池應用在NB可攜式產品及直流-直流降壓電源應用.