LTM4677EY#PBF

LINEAR TECHNOLOGY  LTM4677EY#PBF  芯片, 直流/直流转换器, 降压, 500KHZ, BGA-144

The is a step-down µModule® DC/DC Regulator features remote configurability and telemetry-monitoring of power management parameters over PMBus - an open standard I²C-based digital interface protocol. The LTM4677 is comprised of fast analog control loops, precision mixed signal circuitry, EEPROM, power MOSFETs, inductors and supporting components. The LTM4677"s 2-wire serial interface allows outputs to be margined, tuned and ramped up and down at programmable slew rates with sequencing delay times. Input and output currents and voltages, output power, temperatures, uptime and peak values are readable. Custom configuration of the EEPROM contents is not required. At start-up, output voltages, switching frequency and channel phase angle assignments can be set by pin-strapping resistors.

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Dual, fast, analog loops with digital interface for control and monitoring

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Supports telemetry polling rates up to 125Hz

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Integrated 16-bit ∆Σ ADC

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Constant frequency current mode control n parallel and current share multiple modules

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±0.5% Maximum DC output error over temperature

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±2.5% Current read back accuracy