LTC7821集成電路（IC）的PMIC-穩(wěn)壓器-DCDC開關(guān)式控制器規(guī)格書PDF中文資料

LTC7821屬于集成電路（IC）的PMIC-穩(wěn)壓器-DCDC開關(guān)式控制器。由亞德諾半導(dǎo)體技術(shù)有限公司制造生產(chǎn)的LTC7821DC-DC 開關(guān)控制器PMIC（電源管理集成電路）DC 到 DC 開關(guān)式控制器是用于高效率電路的穩(wěn)壓 IC，其配置為生成高于（突升或步升）或低于（突降或步降）輸入電源的輸出電源電壓。其他拓?fù)浣Y(jié)構(gòu)可能包括：降壓-升壓、反激、正激、Cuk、SEPIC、全橋、半橋和推挽式。這些器件不同于需要最小電壓并“燒盡”多余電壓的線性穩(wěn)壓器。

DESCRIPTION

The LTC?7825 is a fully integrated monolithic DC/DC converter.

It achieves very high efficiency with a switched

capacitor architecture in applications with 2:1 input to

output voltage ratio. The LTC7825 input can survive voltage

transient up to 40V when protected by an optional

MOSFET between VIN and VHIGH. The input and output

are fully disconnected during short-circuit conditions.

The LTC7825 features integrated bootstrap diodes and

provides a compact and cost-effective solution for high

power intermediate bus applications requiring current

limit protections.

FEATURES

n Wide VHIGH/VLOW Voltage from 0V/0V to 24V/12V

n Wide VCC Supply Range from 4.5V to 38V

n Very High Efficiency: 97 at 10A Load

n Input Overvoltage Protection with External

Overvoltage Protection MOSFET

n Input and Output Short-Circuit Protection

n Soft Start-Up into Steady-State Operation

n EXTVCC Capable of 5V to 14V Input for High Efficiency

n Inrush Current Limit and Protection

n Integrated Bootstrap Diodes

n Programmable Operating Frequency from

100kHz to 1.4MHz

n Available in a 4mm × 5mm LGA (LQFN) Package

APPLICATIONS

n Consumer Electronics

n Industrial Applications

n Battery Applications