L5970集成电路（IC）的稳压器-DC-DC开关稳压器规格书PDF中文资料

L5970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L5970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 L5970D is a step down monolithic power switching regulator capable to deliver up to 1A at output voltages from 1.2V to 35V. The device uses an internal P-Channel D-MOS transistor (with a typical Rdson of 250mΩ) as switching element to minimize the size of the external components.

General features

■ Up to 1A output current

■ Operating input voltage from 4.4V to 36V

■ 3.3V / (±2) reference voltage

■ Output voltage adjustable from 1.2V to 35V

■ Low dropout operation: 100 duty cycle

■ 250KHz Internally fixed frequency

■ Voltage feedforward

■ Zero load current operation

■ Internal current limiting

■ Inhibit for zero current consumption

■ Synchronization

■ Protection against feedback disconnection

■ Thermal shutdown

Applications

■ Consumer: STB, DVD, TV, VCR, car radio, LCD monitors

■ Networking: XDSL, modems, DC-DC modules

■ Computer: printers, audio/graphic cards, optical storage, hard disk drive

■ Industrial: changers, car battery, DC-DC converters