SC403B中文资料6A EcoSpeed® Integrated FET Regulator with Programmable LDO数据手册Semtech规格书

描述 Description

The SC403B is a stand-alone synchronous EcoSpeed® buck power supply which incorporates Semtech’s advanced patented adaptive on-time control architecture. It provides excellent light-load efficiency and fast transient response.

特性 Features

·Power System:·Input voltage — 3V to 28V
·Internal or external bias voltage — 3V to 5.5V
·Reference Voltage — 600mV
·Integrated bootstrap switch
·Programmable LDO output — 200mA
·1% reference tolerance -40 to +85 °C
·EcoSpeed® architecture with pseudo-fixed frequency adaptive on-time control

·Logic Input/Output Control:·Independent control EN for LDO and switcher
·Programmable VIN UVLO threshold
·Power good output

·Selectable power save mode·Programmable soft start time

·Protections:·Over-voltage and under-voltage
·TC compensated RDS(ON) sensed current limit
·Thermal shutdown

·Any ESR — SP, POSCAP, OSCON, and ceramic capacitors
·Package:·Lead-free package — 5x5mm, 32-pin MLPQ
·Fully RoHS/WEEE compliant and halogen-free

应用 Application

·Office automation and computing
·Networking and telecommunication equipment
·Point of load power supplies and module replacement