MP2117数据手册集成电路（IC）的稳压器-DC-DC开关稳压器规格书PDF

描述 Description

The MP2117 is an internally compensated 2.2A synchronous step-down switcher. The operating frequency is internally set at 1.25MHz. MP2117 is ideal for powering portable equipment that runs from a single cell Lithium-Ion (Li+) Battery. The MP2117 can provide up to 2.2A continuous load current from a 2.5V to 6V input voltage. The output voltage can be regulated as low as 0.6V. 100% duty cycle provides low dropout operation that extends operating time in battery-operated systems. The MP2117 features an integrated high side switch and synchronous rectifier for high efficiency. With peak current mode control and internal compensation, the MP2117 can be stabilized with ceramic capacitors and small inductors. Fault condition protection includes cycle-by-cycle current limiting and thermal shutdown. MP2117 is available in the small 10-pin 3mmx3mm QFN and SOIC-8 packages.

特性 Features

2.2A Output Current
2.5V to 6V Input Range VIN
Internal Power MOSFET Switches
Low Dropout Operation: 100% Duty Cycle
Up to 90% Efficiency
Stable with Ceramic Output Capacitors
1μA Shutdown Current
1.25MHz Switching Frequency
Thermal Shutdown
Cycle-by-Cycle Over Current Protection
Output Short Circuit Protection
Internal Soft-start
Power On Reset Output
Available in a 10-Pin QFN 3x3mm and 8-pin SOIC Packages

应用 Application

DVD+/-RW Drives
LCD TV
PDAs
Portable Instruments

简介

MP2117属于集成电路（IC）的稳压器-DC-DC开关稳压器。由制造生产的MP2117稳压器 - DC-DC 开关稳压器DC-DC 开关稳压器 PMIC（电源管理集成电路）产品族中的产品是元器件级设备，用于需要稳定 DC 输入电压和/或将其转换为不同幅度的输出电压的应用。这些器件与称为“控制器”PMIC 的类似产品的区别在于集成了主开关元件，设备提供的电力会通过该元件。