The SC418ULTRT is a synchronous EcoSpeed® DC-DC Buck Controller with Programmable LDO 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 programmable LDO in a 3 x 3mm package.
Feature
- Power system
- Input voltage — 3V to 28V
- Integrated bootstrap switch
- Programmable 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/output control
- Independent control EN for LDO and switcher
- Programmable VIN UVLO threshold
- Power good output
- Selectable power save mode
- Programmable ultrasonic power save mode
Protections
- Over-voltage/under-voltage
- TC compensated RDS(ON) sensed current limit
- Thermal shutdown
- Smart power save
Output capacitor types
- High ESR — SP, POSCAP, OSCON
- Ceramic capacitors
- Package — 3 x 3mm, 20-pin MLPQ
- Lead-free and halogen free, RoHS and WEEE compliant
Applications
- Office automation and computing
- Networking and telecommunication equipment
- Point-of-load power supplies and module replacement
Packaging
MLPQ-20
Order Codes
- SC418ULTRT: Lead-free, RoHS and WEEE compliant, 3000 pcs. Tape & Reel
- SC418EVB: SC418 Evaluation Board
