HM1484C中文资料华之美半导体数据手册PDF规格书

描述 Description

HM1484C is a monolithic 30V, 3.1A step-down switching converter. HM1484C integrates a 36V 79mΩ high side and a 36V, 62mΩ low side MOSFETs to provide 3.1A continuous load current over a 6.5V to 30V wide operating input voltage with 33V 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

● 3.1A continuous output current capability

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

● Integrated 36V, 79mΩ high side and 36V, 62mΩ 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

● Input over-voltage protection to protect device from working in high voltage and high current condition

● Output Over-Voltage Protection

● Output short protection with both high side current limit and low side current limit to protect the device in hard short

● 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

ESOP-8 Package