1 Features

 12V to 100V wide operating input range

 Adjustable Frequency from 50kHz to 500kHzOperation

 Precision Reference Voltage (1.2 V)

 Programmable Soft−Start with Pre-biased LoadCapability Programmable EN Off Delay Function Programmable Over-Load Protection with 0.2sblank timer and Hiccup

 Programmable Cycle-by-Cycle Current LimitingProtection

 Programmable Input Under-Voltage LockoutProtection with Latch

 Programmable Input Over-Voltage Protection withLatch

 Output Over-Voltage Protection

 Over-Temperature Protection

 ETSSOP20 packages

2 Applications

 48 V Non−Isolated DC−DC Converter

 Car applications

 Telecom Bus Converters

 General purpose

 USB Type-C Power Delivery

 Industrial DC-DC Motor Drivers

3 Description

PL59011 is a high voltage PWM controller designedforhigh performance synchronous Buck DC/DCapplicationswith input voltages up to 100V. PL59011 drives a pair of external N − MOSFETs. Theswitching frequency is programmable from50 kHzupto500 kHz allowing the flexibility to tune for efficiencyandsize. The output voltage can be precisely regulatedusingthe internally 1.2 V reference voltage for lowvoltageapplications. Protection features include user programmableundervoltage lockout, over voltage lockout and over currentprotection. The supply current drops below10µAinshutdown mode. PL59011 is a good choicefor carinfotainment application, telecom bus converter, etc.