ELM600xB数据手册ELM-Tech中文资料规格书

描述 Description

ELM600xB is a high efficiency step down DC/DC converter operated with current mode and constant frequency. The internal switch and synchronous rectifier are integrated for high efficiency. External Schottky diodes are not required. The supply current is only 100μA during operation and drops to less than 1μA in shutdown. ELM600xB can supply 1A of load current from 2.5V to 5.5V supply voltage. The switching frequency is set at 1.5MHz, allowing the use of small surface mount inductors and capacitors. It can run 100% duty cycle for low dropout application. The output voltage of ELM600xB is adjustable from the FB pin.

特性 Features

• 电流模式控制
• 过热保护、短路保护
• 固定频率Typ.1.5MHz
• 输出电流1A
• 高效率Max.95%
• 关机电流Max.1µA(Ven=0V, Vin=5.5V)
• 电源电压2.5V to 5.5V
• 低静态电流Typ.110µA(Outgoing stopped)
• 占空比控制0 to 100%(in dropout)
• 封装DFN6-2x2TSOT-25

应用 Application

• 手提电话
• PDA、智能手机
• MP3播放器
• 数码相机
• 无线LAN、DSL卡
• 微机、DSP用电源
• 携带式电子产品