宁波PL59011(DC-DC同步降压IC)

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 designed forhigh performance synchronous Buck DC/DC applicationswith input voltages up to 100V.

PL59011 drives a pair of external N?MOSFETs. Theswitching frequency is programmable from 50 kHz up to500 kHz allowing the flexibility to tune for efficiency andsize. The output voltage can be preciselyregulated usingthe internally 1.2 V reference voltage for low voltageapplications.

Protection features include user programmable undervoltage lockout, over voltage lockout and over currentprotection. The supply current drops below 10μA inshutdown mode. PL59011 is a good choice for carinfotainment application, telecom bus converter, etc.