Dual Constant Current Step-Down Switching Regulator

1、Features

3.0V to 32V wide operating input range
2.0V to 32V wide operating output range
100% duty
Dynamical programming of output current and Output voltage using PWM signal or analog signal
Adjustable Switching Frequency using resistor
Frequency dithering for good EMI performance
Integrated 2-A MOSFET Gate Drivers
Comprehensive protection features including Output Short Protection (OSP), Cycle-by-Cycle Peak

Current Limit, thermal regulation, thermal shutdown,input UVLO, output OVP etc.

Dual Output Average Current Limiting with stable CC loop
QFN3x3-20 Package

2、Applications

Automotive Start-Stop Systems
Industrial PC Power Supplies
USB Power Delivery

3、Description

PL56002 is a PWM controller, designed for high performance synchronous Buck DC/DC applications with input voltages 3.0 V to 32 V (36 V maximum). PL56002 employs Constant ON time control. The switching frequency could be set to 150kHz, 300kHz, 600kHz or 1200kHz based on different resistor value between FREQ pin and GND pin. The device also features a programmable soft-start function and offers all kinds of protection features including cycle-by-cycle current limiting, input under voltage lockout (UVLO), output over voltage protection (OVP), thermal shutdown and output short protection etc. PL56002 provides voltage control loop, constant current loop, and thermal regulation loop.

4、Typical Application Schematic

5、Pin Configuration and Functions

产品中心

PL56002 双恒流降压开关稳压器

产品详情

Dual Constant Current Step-Down Switching Regulator

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