TPS53640RSBR

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TPS53640RSBR high power direct series pulse-width modulation (PWM) buck regulators are among the newest and most advanced devices from Texas Instruments (TI), designed to reduce cost and size while enabling high performance voltage regulation. This family of regulators is designed to support a wide variety of applications, including computing, communications, and consumer electronics.

The TPS53640RSBR is a high power synchronous buck voltage regulator that is optimized for medium and high power applications operating at moderate input voltages. It is designed to achieve high efficiency by using low RDS(ON) drivers and PWM sense. The TPS53640RSBR supports a wide dynamic output voltage range of 0.8V to 0.95V with an output current of up to 40A. The TPS53640RSBR features an integrated PMBus compliant interface, as well as fast transient response for load transients.

In addition to providing excellent power conversion efficiency, the device provides an integrated protection suite for over-current, under-voltage, over-temperature, and short circuit protection. The TPS53640RSBR is available in a thermally enhanced 14-pin Green TDFN package.

The TPS53640RSBR application field includes servers, storage, networks and consumer electronics for a variety of non-isolated DC/DC points-of-load (POL) applications. It offers up to 40A of continuous current, as well as fast transient response, low output voltage ripple and improved efficiency through active gate drivers, low gate charge and PWM sensing.

The TPS53640RSBR operates in a 3-phase boost mode, where three low-RDSON drivers provide the full output current of 40A to the output inductor. The drivers feature an internal level shift that enables the output voltage to be set to 0.8V to 0.95V. A capacitive line-on-line compensation technique is used to dynamically balance the load currents between the three phases, reducing current ripple and improving efficiency.

TI’s integrated protection suite includes several features for improved system reliability, including internal current limit, over-voltage protection, under-voltage lockout, over-temperature protection, and short-circuit protection. An integrated PMBus interface is provided for fast communication with the regulating power system, allowing for custom tuning, over-current threshold adjustment, and remote sensing of output voltage.

The TPS53640RSBR is a high power direct series PWM buck regulator that is optimized for medium and high power applications operating at moderate input voltages. It is designed to achieve high efficiency by using low RDS(ON) drivers and PWM sense, as well as offering an integrated PMBus compliant interface, fast transient response and an integrated protection suite. It offers excellent power conversion efficiency, fast transient response and improved system reliability.

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