PL56002 Dual Constant Current Step-Down Switching Regulator
關鍵詞： PL56002 降壓式開關調節器 雙路恒流 汽車啟停系統 工業電源應用
PL56002 Dual Constant Current Step-Down Switching Regulator
1 Features
4.2V to 32V wide operating input range
2.0V to 32V wide operating output range
Dynamical programming of output current and
Output voltage using PWM signal or analog signal
Adjustable Switching Frequency using resistor
Frequency dithering for good EMl performance
Integrated 2-A MOSFET Gate Drivers
Comprehensive protection features including Output
Short Protection(OSP)，Cycle-by-Cycle Peak
Current Limit,thermal requlation, thermal shutdow
input UvLO, output OvP etc.
Dual OutputAverage Current Limiting with stableCC
l00D
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 4.2 V to 32 V
PL56002 employs Constant ON time control. The switching frequency could be set to 150kHz,300kHz
based on different resistor value between FREQ pinand 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 prote ction etc.
PL56002 provides voltage control loop, constantcurrent loop, and thermal regulation loop.
4、Website：www.baitaishengshi.com
5、 Typical Application Schematic
