TPS54495RSAT

TEXAS INSTRUMENTS  TPS54495RSAT  芯片, 双路同步降压, 700KHZ, QFN-16

The is a dual adaptive on-time D-CAP2™ mode synchronous Buck Converter enables system designers to complete the suite of various end equipment"s power bus regulators with a cost effective, low component count and low standby current solution. The main control loops of the TPS54495 use the D-CAP2™ mode control which provides a very fast transient response with no external compensation components. The adaptive on-time control supports seamless transition between PWM mode at higher load conditions and Eco-mode™ operation at light loads. Eco-mode™ allows the TPS54495 to maintain high efficiency during lighter load conditions. The TPS54495 is able to adapt to both low equivalent series resistance ESR output capacitors such as POSCAP or SP-CAP and ultra-low ESR, ceramic capacitors. The device provides convenient and efficient operation with input voltages from 4.5 to 18V.

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Highly efficient integrated FETs optimized for low duty cycle applications

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High initial reference accuracy

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Low-side rDSon loss-less current sensing

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Adjustable soft-start

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Non-sinking pre-biased soft-start

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Cycle-by-cycle over-current limit control

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OCL/UVLO/TSD Protections

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Hiccup timer for overload protection

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Adaptive gate drivers with integrated boost PMOS switch

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OCP Constant due to thermally compensated rDSon with 4000ppm/°C

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Green product and no Sb/Br