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.
Feature
- 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
Applications
- Office automation and computing
- Networking and telecommunication equipment
- Point-of-load power supplies and module replacement
- Automotive applications
Packaging
- MLPQ 20-pin 3 x 3(mm)
Order Codes
- SC508ULTR - Lead-free packaging only. Device is WEEE and RoHS compliant and halogen-free
- SC508AULTRT - Lead-free packaging only. Device is WEEE and RoHS compliant and halogen-free
