40V, 3.5A Monolithic Step-Down Switching Regulator

1、Features

3.5A continuous output current capability
Up to 98% duty
4.6V to 33V wide operating input range
Integrated 40V, 80mΩ high side and 40V, 50mΩ low side power MOSFET switches
Up to 97% efficiency
CV/CC Mode control (Constant voltage and constant current).
Internal Soft-Start limits the inrush current at turn-on
Fixed 160KHz 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

2、Applications

9-V, 12-V and 24-V 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

3、Description

The PL8205X is a monolithic synchronous buck regulator

with wide operating input voltage range from 4.6 to 33V.

Current mode control with internal slope compensation is

implemented to reduce component count.

PL8205X 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.

4、Typical Application Schematic

5、Pin Configuration and Functions

产品型号

供货状态

推荐工作

电压（V）

最大工作

电流(A)

输入电压

范围（V）

频率

（kHz）

软启动

功率管

CC/CV

补偿

控制结构

封装

PL8205X

量产

3.5

4.5-32

160

内置Internal

CC/CV

内置Internal

峰值电流

ESOP8

产品中心

PL8205X 降压DC-DC转换器

产品详情

40V, 3.5A Monolithic Step-Down Switching Regulator

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