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SC402B

 2016-08-24

【产品特性】

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

【产品应用】

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

【文字介绍】

SC402B是一个高性能10安培非隔离式的同步降压器, 特色是控制IC + BOOTSTRAP Switch + MOSFET + 可调整的LDO整个包装在一个MLPQ5x5mm-32-pin的IC里.可以在很小的PCB空间范围内得到很稳定且很好的效率表现.特殊的pseudo-fixed控制调变脉波宽度调变使出可以在负载瞬间快速变化之下得到很稳定的输出电压.且输出可以支持任何形式的电容.
在电源保护方面包含了cycle-by-cycle可程序的过电流保护,柔和性启动/关闭机制,智能型的过电压保护装置,可程序的省电模式装置.输入宽压达3V-28V.可以轻易的应用在低成本单颗或多串的电池应用在NB可携式产品及直流-直流降压电源应用.