Semtech | SC402BEVB

The SC402BEVB is a Evaluation Board for 10 A EcoSpeed Integrated FET Regulator with Programmable LDO. It is a stand-alone synchronous EcoSpeed® buck power supply which incorporates Semtech’s advanced patented adaptive on-time control architecture. This provides excellent light-load efficiency and fast transient response.

It features integrated power MOSFETs, a bootstrap switch, and a programmable LDO in a 5x5mm package. The device is highly efficient and uses minimal PCB area. The SC402B has the same package and pin configuration as the entire SC40x series for compatibility.

The SC402B supports using standard capacitor types such as electrolytic or specialty polymer, in addition to ceramic, at switching frequencies up to 1MHz. The programmable frequency, synchronous operation, and selectable power-save provide high efficiency operation over a wide load range.

Features:

• Power System
• Input voltage - 3 V to 28 V
• Bias voltage - 3 V to 5.5 V LDO or external
• Up to 96% peak efficiency
• Integrated bootstrap switch
• Programmable LDO output - 200 mA
• Reference tolerance - 1% TJ= -40 to +125 °C
• Programmable soft start time
• Logic Input/Output Control
• Independent EN controls for LDO and switcher
• Programmable VIN UVLO threshold
• Power good output
• Selectable PSAVE or FCM mode
• Protection
• Over-voltage and under-voltage
• TC compensated RDS(ON) sensed current limit
• Thermal Shutdown
• Output Capacitor Types
• High ESR - SP, POSCAP, OSCON
• Ceramic capacitors
• Package
• Lead-free package - 5x5mm, 32-Pin MLPQ
• RoHS/WEEE compliant and Halogen free

Applications:

• Networking and telecommunication equipment
• Printers, DSL, and STB applications
• Embedded systems and power supply modules
• Point of load power supplies