L5986A集成电路（IC）的稳压器-DC-DC开关稳压器规格书PDF中文资料

L5986A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L5986A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 L5986 is a step down switching regulator with 3.0 A (minimum) current limited embedded power MOSFET, so it is able to deliver up to 2.5 A current to the load depending on the application conditions.

The input voltage can range from 2.9 V to 18 V, while the output voltage can be set starting from 0.6 V to VIN. Having a minimum input voltage of 2.9 V, the device is suitable also for 3.3 V bus.

Requiring a minimum set of external components, the device includes an internal 250 kHz switching frequency oscillator that can be externally adjusted up to 1 MHz.

The QFN and the HSOP packages with exposed pad allow reducing the RthJA down to 60 °C/W and 40 °C/W respectively.

特性 Features

■ 2.5 A DC output current

■ 2.9 V to 18 V input voltage

■ Output voltage adjustable from 0.6 V

■ 250 kHz switching frequency, programmable up to 1 MHz

■ Internal soft-start and inhibit

■ Low dropout operation: 100 duty cycle

■ Voltage feed-forward

■ Zero load current operation

■ Over current and thermal protection

■ VFQFPN3x3-8L and HSOP8 package

Application

■ Consumer:

STB, DVD, DVD recorder, car audio, LCD TV

and monitors

■ Industrial:

PLD, PLA, FPGA, chargers

■ Networking: XDSL, modems, DC-DC modules

■ Computer:

Optical storage, hard disk drive, printers,

audio/graphic cards

■ LED driving