MCP1603中文资料2MHz 500mA Synchronous PFM/PWM Buck Regulator数据手册Microchip规格书

描述 Description

The MCP1603 is a high efficiency fully integrated 500 mA 2.0 MHz synchronous buck regulator ideally suited for Li-Ion/NiMH Battery powered application powered. At heavy loads, the MCP1603 operates in the 2.0 MHz fixed frequency PWM mode which provides a low noise, low output ripple, small-size solution. When the load is reduced to light levels, the MCP1603 automatically changes operation to a PFM mode to minimize quiescent current draw from the battery. No intervention is necessary for a smooth transition from one mode to another. These two modes of operation allow the MCP1603 to achieve the highest efficiency over the entire operating current range.

特性 Features

Small packages: TSOT-23 and 2x3 DFN
PWM/PFM automatic transistion
Over current and temperature protection
Automatic PWM/PFM mode transition
Eff. 90%, Shutdown Current 100 nA
Small passives 4.5 microhenry, 4.5 microfarad

简介

MCP1603属于集成电路（IC）的稳压器-DC-DC开关稳压器。由Microchip制造生产的MCP1603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。