36V, 1.2A Monolithic Step-Down Switching Regulator

输入电压

范围(V)

最高工作

电流(A)

产品型号

频率（kHz）

软启动

功率管

内置/外置

CC/CV

补偿

控制结构

封装

4.5-32

1.0

PL8312

500

内置Internal

CC/CV

内置Internal

峰值电流

SOP8

1 Features

1.2A continuous output current capability
4.5V to 36V wide operating input range with 33V input Over Voltage Protection
Integrated 36V, 250mΩ high side and 36V, 140mΩ low side power MOSFET switches
Up to 97% efficiency
Internal Soft-Start limits the inrush current at turn-on
Internal compensation to save external components
Input Under-Voltage Lockout
Input over-voltage protection to protect device from working in high voltage and high current condition
Output Over-Voltage Protection
Output short protection with both high side current limit and low side current limit to protect the device in hard short
Over-Temperature Protection
Pulse skip mode at light load to improve light load efficiency
Stable with Low ESR Ceramic Output Capacitors
Fixed 500KHz Switching Frequency
Fewest external components and intensive internal protection features
SOP-8 Package

2 Applications

USB car charger
Portable charging device
General purpose DC-DC conversion

3 Description

PL8312 is a monolithic 36V, 1.2A step-down switching regulator. PL8312 integrates a 36V 250mΩ high side and a 36V, 140mΩ low side MOSFETs to provide 1.2A continuous load current over a 4.5V to 36V wide operating input voltage with 33V input over voltage protection. Peak current mode control provides fast transient responses and cycle-by-cycle current limiting.

PL8312 has configurable line drop compensation, configurable charging current limit. CC/CV mode control provides a smooth transition between constant current charging and constant voltage charging stages. Built-in soft-start prevents inrush current at power-up.

4 Typical Application Schematic

5 Pin Configuration and Functions

产品中心

PL8312 降压DC-DC转换器

产品详情

36V, 1.2A Monolithic Step-Down Switching Regulator

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