s High Voltage Operation up to 72V s Synchronizable Operating Frequency and Output
Switch Phase for Multiple Controller Systems s Synchronous Switch Output s Undervoltage Lockout Protection with 6V Hysteresis
for Self-Biased Power s Fixed Frequency Operation to 350kHz s Local ±1% Voltage Reference s Input Overvoltage Protection s Low Start-Up Current s Programmable Start Inhibit for Power Supply
Sequencing and Protection s Optocoupler Support
s Soft-Start ControUl.
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LT3781
“Bootstrap” Start Dual Transistor Synchronous Forward Controller
U U
FEATURES
s High Voltage Operation up to 72V s Synchronizable Operating Frequency and Output
Switch Phase for Multiple Controller Systems s Synchronous Switch Output s Undervoltage Lockout Protection with 6V Hysteresis
for Self-Biased Power s Fixed Frequency Operation to 350kHz s Local ±1% Voltage Reference s Input Overvoltage Protection s Low Start-Up Current s Programmable Start Inhibit for Power Supply
Sequencing and Protection s Optocoupler Support
s Soft-Start ControUl APPLICATIO S
s Isolated Telecommunication Systems s Personal Computers and Peripherals s Distributed Power Step-Down Converters s Lead Acid Battery Backup Systems s Automotive and Heavy Equipment
DESCRIPTIO
The LT®3781 controller simplifies th
LT3781 Datasheet
