描述 Description

HM1482C is a monolithic 30V, 2.5A step-down switching regulator. HM1482C integrates a 36V 86mΩ high side and a 36V, 74mΩ low side MOSFETs to provide 2.5A continuous load current over a 6.5V to 30V wide operating input voltage with input over voltage protection. Peak current mode control provides fast transient responses and cycle-by-cycle current limiting. Programmable soft-start prevents inrush current at power-up.

特性 Features

● 2.5A continuous output current capability

● 6.5V to 30V wide operating input range with 33V input Over Voltage Protection

● Integrated 36V, 86mΩ high side and 36V, 74mΩ low side power MOSFET switches

● Up to 95 efficiency

● Programmable Soft-Start limits the inrush current at turn-on

● Stable with Low ESR Ceramic Output Capacitors

● Fixed 300KHz Switching Frequency

● Input Under-Voltage Lockout. Output Over-Voltage Protection

● Over-Temperature Protection

● Thermally Enhanced ESOP-8 Package

Applications

● Set-Top-Box

● Televisions

● DVD, LCD Displays

● OLPC, Netbook

● Datacom, XDSL modems

● Distributed Power Systems

● USB car charger

● Portable charging device

● General purpose