PL56002数据手册Powlicon中文资料规格书

描述 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.

特性 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

应用 Application

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