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LTM4686 - Ultrathin µModule® Regulators

By Linear Technology 41

LTM4686 - Ultrathin µModule® Regulators

Power by Linear™/Analog Devices' LTM4686 is a dual 10 A or single 20 A ultrathin step-down µModule regulator. Its 1.82 mm height allows it to be placed very close to a load (an FPGA or ASIC), sharing one heat sink. This regulator features remote configurability and telemetry-monitoring of power management parameters over PMBus™, an open standard I2C-based digital interface protocol. The LTM4686 is comprised of fast analog control loops, precision mixed-signal circuitry, EEPROM, power MOSFETs, inductors, and supporting components.

The LTM4686’s 2-wire serial interface enables voltage margining and sequencing, and telemetry readback of currents, voltages, power, temperature, uptime, and peak values. Pin-strap resistors configure start-up settings. The LTpowerPlay™ GUI, DC1613 USB-to-PMBus converter, DC2086 programming adapter, and demo kits are available. Applications running from 5 VIN or supplying 5 VAUX to SVIN should use LTM4686.
Features
  • Input voltage range: 4.5 V to 17 V standalone
  • Input voltage range: 2.375 V to 17 V with aux 5 V bias
  • Output voltage range: 0.5 V to 3.6 V
  • ±0.5% maximum DC output error over temperature
  • 10 ADC typical, 12 A peak output current, per channel
  • ±5% current readback accuracy at 10 A load
  • 400 kHz PMBus-compliant I2C serial interface
  • Dual, fast, analog loops with digital interface for control and monitoring
  • Integrated 16-bit ΔΣ ADC
  • Supports telemetry polling rates up to 125 Hz
  • Constant frequency current mode control
  • Parallel and current share multiple modules
  • All 7-bit slave addresses supported
  • 16 mm × 11.9 mm × 1.82 mm LGA package

ट्यागहरू:

Power ManagementSemiconductors & Dev ToolsLinear Technology

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