SC508 Datasheet PDF - Semtech Corporation
Semtech Corporation
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. It features an integrated bootstrap switch and a fixed 5V LDO in a 3 x 3(mm) package. The device is highly efficient and uses minimal PCB area. The SC508A is available for automotive applications and is qualified to AEC-Q100.
FEATUREs
â– 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
â– 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
â– 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
â– Capacitor types: SP, POSCAP, OSCON, and ceramic
■Package — 3 x 3(mm), 20-pin MLPQ
â– Lead-free and halogen-free
â– RoHS and WEEE compliant
â– AEC-Q100 Qualified available in SC508A
APPLICATIONs
â– Office automation and computing
â– Networking and telecommunication equipment
â– Point-of-load power supplies and module replacement
â– Automotive applications
