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LTC3738CUHF and LTC3731CUH Evaluation Kit
Linear Technology Inc.
Description
Demonstration circuits 721A-A and 721A-B are high current step-down converters for Intel VRM/VRD10 and VRM9 processor power applications. The demo circuits feature the current-mode PolyPhaseTM controllers LTC3738CUHF and LTC3731CUH. The input voltage is from 8V to 14V and the output voltage is controlled by the VID setting. DC721A-A is a 6-phase LTC3738 and LTC3731 supply that can provide up to 120A output current. DC721A-B is a single LTC3738 3-phase 65A output supply. Both LTC3738CUHF and LTC3731CUH controllers are in the QFN packages to minimize the supply footprint size and improve the thermal performance. The LTC3738 controller has 6 VID pins to program the output voltage according to Intel VRM9 or VRM/VRD10 requirement. Accurate active voltage positioning (AVP) is implemented with LTC3738 to meet Intel?s tight load line regulation requirement. Optional 0.1% external voltage reference and external Op-Amp compensation circuits are also available on DC721A-A and DC721A-B for applications requiring <0.5% output voltage regulation accuracy and optimum transient response.
Features
DC721 - LTC3738CUHF and LTC3731CUH Evaluation Kit Disclaimer: Linear Technology cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Linear Technology product. No circuit patent licenses are implied. Linear Technology reserves the right to change the circuitry and specifications without notice at any time.
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