Description

The LTC3896 is a high performance inverting DC/DC switching regulator controller that drives an all N-channel synchronous power MOSFET stage. It converts a wideranging positive input voltage source to a regulated negative output that can be as much as 60V below ground. The input can operate from a voltage as low as 4V and as high as 140V ? |VOUT?|.The LTC3896 contains true ground-referenced RUN, PLLIN and PGOOD pins, eliminating the need for external discrete level-shifting components to interface with the LTC3896.A constant frequency current mode architecture allows a phase-lockable frequency of up to 850kHz. The low 40?A no-load quiescent current extends operating run time in battery-powered systems. OPTI-LOOP? compensation allows the transient response to be optimized over a wide range of output capacitance and ESR values. The LTC3896 features a precision 0.8V reference and power good output indicator. The soft-start (SS) pin ramps the output voltage during start-up.Applications Automotive and Industrial Power Systems Telecommunications Power Supplies Distributed Power Systems

Type:

Part number: DC2447A

More details from Analog Devices Inc.