ELM604PA中文资料800mA 1.4MHz 高效率 双路 同步整流 PWM降压 DC/DC转换器数据手册ELM-Tech规格书

描述 Description

ELM604PA consists of dual high efficiency PWM step-down DC/DC converters operated with current mode and constant frequency. For each converter the integration of a main switch and a synchronous rect-ifier eliminates the use of an external Schottky diode.  ELM604PA is ideal for the application of portable electronic devices with a single cell Lithium-ion (Li+) battery.  Each converter can supply 800mA of load current from a 2.5V to 6V input voltage. The output voltage can be regulated as low as 0.6V.  It can also run at 100% duty cycle for low dropout applications.

特性 Features

• Current mode operation
• Thermal shutdown protection
• Short circuit protection
• Constant frequency operationTyp.1.4MHz
• Output current800mA(on each channel)
• Low output voltage0.6V
• High efficiencyMax.95%
• Shutdown currentTyp.0.1µA
• Supply voltage2.5V to 6.0V
• Full duty ratio0 to 100%(in dropout)
• PackageTDFN10-3x3
• DatasheetELM604PA

应用 Application

• PDAs
• MP3 players
• Portable instruments
• Cellular and smart phones
• Digital still and video cameras
• Microprocessors and DSP core supplies