TPS54339DDA

TEXAS INSTRUMENTS  TPS54339DDA  直流-直流开关降压逐步递减稳压器, 可调, 4.5V-23V输入, 760mV-7V输出, 3A输出, PPAD-8

The is an adaptive on-time D-CAP2™ mode synchronous Buck Converter for use with digital set-top box STB. The TPS54339 enables system designers to complete the suite of various end-equipment power bus regulators with low component count and low standby current solution. The main control loop for the TPS54339 uses the D-CAP2™ mode control that provides a fast transient response with no external compensation components. The TPS54339 also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance ESR output capacitors, such as POSCAP or SP-CAP and ultra-low ESR ceramic capacitors. The device operates from 4.5 to 23V VIN input. The output voltage can be programmed between 0.76 and 7V. The device also features an adjustable soft-start time.

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D-CAP2™ mode enables fast transient response

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Low output ripple and allows ceramic output capacitor

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Highly efficient integrated FETs optimized for lower duty cycle applications

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High initial bandgap reference accuracy

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Adjustable soft-start

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pre-biased soft-start

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Cycle-by-cycle overcurrent limit

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High efficiency, less than 10µA at shutdown

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Green product and no Sb/Br