SI-8008HD DC-to-DC Step-Down Converter
Features and Benefits
▪ 5.5 A output current supplied in a small, surface mount ...
SI-8008HD DC-to-DC Step-Down Converter
Features and Benefits
▪ 5.5 A output current supplied in a small, surface mount power package
▪ High efficiency: 83% at VIN= 15 V, IO= 3.0 A,VO= 5 V ▪ Requires only seven external components (optional soft
start requires an additional capacitor) ▪ Oscillation circuit built-in (frequency 150 kHz typical) ▪ Constant-current mode overcurrent protection circuit and
overtemperature protection circuit built-in ▪ Soft start function built-in (can be implemented as an
on/off function; output-off state at low level) ▪ Low current consumption during output-off state
Package: TO263-5
Description
The SI-8008HD DC voltage
regulator is a DC-to-DC buck convertor that attains an oscillation frequency of 150 kHz, and has an integrated miniaturized choke coil, allowing it to serve as a small, high efficiency power supply in a compact TO-263 package.
The internal switching
regulator function provides high efficiency switching regulation without any need for adjustment. The device requires only six external support components. The optional soft start function requires an additional capacitor. Optional on/off control can be performed using a
transistor. The SI-8008HD includes overcurrent and overtemperature protection circuits.
Applications include: ▪ DVD recorder ▪ FPD TV ▪ Telecommunications equipment ▪ Office automation equipment, such as printers ▪ On-board local power supply ▪ Output voltage
regulator for second stage of SMPS
(switched mode power supp...