DC/DC Controller, High Performance, 4V to 38V, 1 Output, Synchronous Buck, 790kHz, SSOP-16

LTC3851EGN#PBF - DC/DC Controller, High Performance, 4V to 38V, 1 Output, Synchronous Buck, 790kHz, SSOP-16

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Product Overview

The LTC3851EGN#PBF is a high-performance synchronous step-down Switching Regulator Controller drives an all N-channel synchronous power MOSFET stage. The constant frequency current-mode architecture allows a phase-lockable frequency of up to 750kHz. OPTI-LOOP compensation allows the transient response to be optimized over a wide range of output capacitance and ESR values. The LTC3851 features a precision 0.8V reference that is compatible with a wide 4 to 38V input supply range. The TK/SS pin ramps the output voltage during start-up. Current foldback limits MOSFET heat dissipation during short-circuit conditions. The MODE/PLLIN pin selects among Burst Mode operation, pulse skipping mode or continuous inductor current-mode at light loads and allows the IC to be synchronized to an external clock.
  • ±1% Output voltage accuracy
  • Dual N-channel MOSFET synchronous drive
  • Adjustable output voltage soft-start or tracking
  • Output current foldback limiting
  • Output overvoltage protection
  • Selectable continuous, pulse-skipping or burst mode operation at light loads


Automotive, Communications & Networking, Industrial, Power Management

Product Information

1 Output
Synchronous Buck (Step Down)
MSL 1 - Unlimited
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