Buck Regulator Positive Output Step-Down DC-DC Controller IC 16-MSOP-EP

Buck Regulator Positive Output Step-Down DC-DC Controller IC 16-MSOP-EP

PRODUCT DESCRIPTION

The LTC®3851A is a high performance synchronous step-down switching regulator controller that drives an all N-channel synchronous power MOSFET stage. A 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 LTC3851A features a precision 0.8V reference that is compatible with a wide 4V 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.

The LTC3851A contains an improved PLL compared to the LTC3851. The LTC3851A-1 is a version with a power good output signal instead of adjustable current limit.

PRODUCT PROPERTIES

STJK(HK) ELECTRONICS CO.,LIMITED is an professional Electronic Components distributor,more than 12 years wholesale and distributor enable us accumulated much experience in electronic components field;We sufficient stock of hard to find and obsolete electronic components, semiconductors, military components, switches, relays,sensors,circuit protection and hard drives. The first-level agent of many electronic components brand and original factories, complete categories, stable supply,Lowest price,all chips can be traced back to the origin.

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