L6920集成电路（IC）的稳压器-DC-DC开关稳压器规格书PDF中文资料

L6920属于集成电路（IC）的稳压器-DC-DC开关稳压器。由意法半导体集团制造生产的L6920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。

描述 Description

The L6920 is a high efficiency step-up controller requiring only three external components to realize the conversion from the battery voltage to the selected output voltage.

The start up is guaranteed at 1V and the device is operating down to 0.6V. Internal synchronous rectifier is implemented with a 120mΩP-channel MOSFET and, in order to improve the efficiency, a variable frequency control is implemented.

特性 Features

■0.6 TO 5.5V OPERATING INPUT VOLTAGE

■1V START UP INPUT VOLTAGE

■INTERNAL SYNCHRONOUS RECTIFIER

■ZERO SHUT DOWN CURRENT

■3.3V AND 5V FIXED OR ADJUSTABLE OUTPUT VOLTAGE (2V UP TO 5.2V)

■120mΩINTERNAL ACTIVE SWITCH

■LOW BATTERY VOLTAGE DETECTION

■REVERSE BATTERY PROTECTION

Applications

■ONE TO THREE CELL BATTERY DEVICES

■PDA AND HAND HELD INSTRUMENTS

■CELLULAR PHONES - DIGITAL CORDLESS PHONE

■PAGERS

■GPS

■DIGITAL CAMERAS