SC508A中文资料46V EcoSpeed® DC-DC Buck Controller with Integrated LDO, AEC-Q100 Qualified数据手册Semtech规格书

描述 Description

The SC508/SC508A is a synchronous EcoSpeed® buck regulator which incorporates Semtech’s advanced, patented adaptive `on-time control architecture to provide excellent light-load efficiency and fast transient response.

特性 Features

·Power system·Input voltage — 4.5V to 46V
·Integrated bootstrap switch
·Fixed 5V LDO output — 200mA
·1% reference tolerance -40 to +85 °C
·Selectable internal/external bias power supply
·EcoSpeed® architecture with pseudo-fixed frequency adaptive on-time control

·Logic input and output control·Independent control EN for LDO and switcher
·Programmable soft-start time
·Programmable VIN UVLO threshold
·Power Good output
·Selectable power-save mode
·Programmable ultrasonic power-save mode

·Protections·Automatic restart on fault shutdown
·Over-voltage and under-voltage
·TC compensated RDS(ON) sensed current limit
·Thermal shutdown
·Smart power-save
·Pre-bias start-up

·Capacitor types: SP, POSCAP, OSCON, and ceramic
·Package — 3 x 3(mm), 20-pin MLPQ
·Lead-free and halogen-free
·RoHS and WEEE compliant
·AEC-Q100 Qualified available in SC508A

应用 Application

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