LTC3728 - Dual, 550kHz, 2-Phase Synchronous Step-Down Switching Regulator

The LTC3728 is a dual high performance Step-down Switching Regulator controller that drives all N-channel synchronous Power MOSFET stages. A constant frequency current mode architecture allows phase-lockable frequency of up to 550kHz. Power loss and noise due to the ESR of the input capacitors are minimized by operating the two controller output stages out of phase. OPTI-LOOP compensation allows the transient res 56a ponse to be optimized over a wide range of output capacitance and ESR values. The precision 0.8V reference and power good output indicator are compatible with future Microprocessor generations, and a wide 3.5V to 30V (36V maximum) input supply range encompasses all battery chemistries.
A RUN/SS pin for each controller provides both soft-start and optional timed, short-circuit shutdown. Current foldback limits MOSFET dissipation during short-circuit conditions when overcurrent latchoff is disabled. Output overvoltage protection circuitry Latches on the bottom MOSFET until VOUT returns to normal. The FCB mode pin CAN select among Burst Mode, constant frequency mode and continuous inductor current mode or regulate a secondary winding. The LTC3728 includes a power good output pin that indicates when both outputs are within 7.5% of their designed set point.
By Linear Technology Corporation
LTC3728 's PackagesLTC3728 's pdf datasheet
LTC3728EG SSOP
LTC3728EG-PBF SSOP
LTC3728EG-TR SSOP
LTC3728EG-TRPBF SSOP
LTC3728EUH QFN
LTC3728EUH-PBF QFN
LTC3728EUH-TR QFN
LTC3728EUH-TRPBF QFN
LTC3728LCGN SSOP
LTC3728LCGN-P563BF SSOP
LTC3728LCGN-TR SSOP
LTC3728LCGN-TRPBF SSOP
LTC3728LCUH QFN
LTC3728LCUH-PBF QFN
LTC3728LCUH-TR QFN
LTC3728LCUH-TRPBF QFN
LTC3728LEGN SSOP
LTC3728LEGN-PBF SSOP
LTC3728LEGN-TR SSOP
LTC3728LEGN-TRPBF SSOP
LTC3728LEGN-1-PBF SSOP
LTC3728LEGN-1-TRPBF SSOP
LTC3728LEUH QFN
LTC3728LEUH-PBF QFN
LTC3728LEUH-TR QFN
LTC3728LEUH-TRPBF QFN
LTC3728LEUH-1-PBF QFN
LTC3728LEUH-1-TRPBF QFN
LTC3728LIGN-PBF SSOP
LTC3728LIGN-TRPBF SSOP
LTC3728LIUH-PBF QFN
LTC3728LIUH-TRPBF QFN
LTC3728LXCUH QFN
LTC3728LXCUH-PBF QFN
LTC3728LXCUH-TR QFN
LTC3728LXCUH-TRPBF QFN
LTC3728LZEUH-PBF QFN
LTC3728LZEUH-TRPBF QFN




LTC3728 Pinout, Pinouts
LTC3728 pinout,Pin out
This is one package pinout of LTC3728,If you need more pinouts please download LTC3728's pdf datasheet.

LTC3728 Application circuits
LTC3728 circuits
This is one application circuit of LTC3728,If you need more circuits,please download LTC3728's pdf datasheet.


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