LTM4677IY#PBF

LTM4677 is a dual 18A or single 36A step-down µModule® (power module) DC/DC regulator with 40ms turn-on time. It features remote configurability and telemetry monitoring of power management parameters over PMBus an open standard I²C-based digital interface protocol. It is comprised of fast analogue control loops, precision mixed-signal circuitry, EEPROM, power MOSFETs, inductors and supporting components. This device’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. At start-up, output voltages, switching frequency, and channel phase angle assignments can be set by pin-strapping resistors. It is used in application such as system optimization, characterization and data mining in prototype, production and field environments, telecom, datacom, and storage systems etc.

• Dual, fast, analogue loops with digital interface for control and monitoring
• Wide input voltage range is 4.5V to 16V
• Output voltage range is 0.5V to 1.8V
• Load regulation accuracy is 0.5% typ at (TA = 25°C, VIN = 12V, RUNn = 5V)
• Serial bus operating frequency is 400KHz maximum at (TA = 25°C, VIN = 12V)
• Integrated 16-bit ∆Σ ADC, constant frequency current mode control
• Parallel and current share multiple modules
• Pin compatible with LTM4676A (dual 13A, single 26A)
• Operating temperature is -40°C to 125°C
• Package style is 144-lead BGA

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party