LYF82031 Monolithic Step-Down Switching Regulator-产品中心-深圳宝砾微电子有限公司官方网站-首页-我们致力于设计及制造安全、可靠、高性能、高性价比的电源管理芯片

产品型号

输入电压
范围(V)

最大输出
电流(A)

频率
(kHz)

待机电流
(uA)

软启动

功率管
内/外置

同步/异步

CC/CV

补偿

控制结构

封装类型

包装

注释

LYF82031

4.2-32

3.5

160

800

内置
Internal

同步

CC/CV

内置
Internal

峰值电流

ESOP8

4K/盘

功能兼容:
TPS54332/1

33V, 3.5A Monolithic Step-Down Switching Regulator

Features

3.5A continuous output current capability
Up to 98% duty
4.2V to 33V wide operating input range
Integrated 40V, 80mΩ high side and 40V, 50mΩ

low side power MOSFET switches

Up to 97% efficiency
Internal Soft-Start limits the inrush current at turn-on
Fixed 150KHz Switching Frequency
Internal compensation to save external components
Pulse Skipping Mode to Achieve High Light Load Efficiency
Frequency jittering to ease EMI Issue
Peak Current-Mode Control
Cycle-by-Cycle Over Current Protection
Input over-voltage protection
Output Over-Voltage Protection
Output short protection
Over-Temperature Protection
Available in ESOP8 Package

Description

The LYF82031 is a monolithic synchronous buck regulator

with wide operating input voltage range from 4.2 to 33V.

Current mode control with internal slope compensation is

implemented to reduce component count.

LYF82031 also features a light load pulse skipping mode,

which allows for a power loss reduction from the input

power supply to the system at light loading.

Frequency spread spectrum operation is introduced for

EMI reduction.

A cycle-by-cycle current limit with frequency fold back

protects the IC at over loading condition.

Typical Application Schematic

Applications

5-24V Distributed Power Systems
Consumer Applications Such as Home

Appliances,Set-Top Boxes, CPE Equipment, LCD

Displays, Peripherals, and Battery Chargers

Industrial and Car Entertainment Power Supplies

产品中心

LYF82031 Monolithic Step-Down Switching Regulator

产品详情

33V, 3.5A Monolithic Step-Down Switching Regulator

联系我们

购买样品

微信扫一扫