PL5501 High Efficiency 4-Switch Buck-Boost Controller

PublishTime：2020-07-21

PL5501 is a synchronous 4-switch Buck-Boost controller capable of regulating the output voltage at above or below the input voltage. PL5501 operates over a wide input voltage range of 3.6 V to 32 V (36 V maximum) to support a variety of applications.
PL5501 employs Constant ON time control in buck, boost and buck-boost operation modes for superior load and line regulation. 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), input Over Voltage Protection, thermal shutdown and output short protection etc.
VADJ, IADJ pins are used to program output VBUS voltage and output current limit, provides voltage control loop, constant current loop, thermal regulation loop, temperature sensing, which makes PL5501 an excellent option for USB Power Delivery (PD) application.

Brand of Product：	Powlicon
Part#：	PL5501 、 PL5501IQN32 More Part#
Product Category：	High Efficiency 4-Switch Buck-Boost Controller More
Application：	[ Automotive Start-Stop Systems ][ Industrial PC Power Supplies ][ USB Power Delivery ][ Car charger ][ HUB Power ] More
Data Type：	Datasheet More
Safety & Environment Standards：	ESD（HBM,2kV） More
Operating Temperature：	Please see the document for details
Qualification Grade：	More
Qualification Approval：	More
Package：	QFN4
Language：	English Chinese Chinese and English Japanese
Date of Creation：	2019-02-18
Version Number：	Rev. 1.0
Data Encoding：	DS-PL5501
Data Size：	1.9 MB

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