Analog Devices Inc. LTM467x/LTM468x μModule Regulators

Analog Devices Inc. LTM467x/LTM468x μModule Regulators with Digital Power System Management have telemetry monitoring power management parameters over PMBus. This is an open standard I²C-based digital interface protocol. The devices also offer remote configurability. The LTM467x/LTM468x series from Analgo Devices consists of precision mixed-signal circuitry, EEPROM, power MOSFETs, fast analog control loops, inductors, and supporting components. Outputs are margined, tuned, and ramped up and down at programmable slew rates with sequencing delay times with the LTM467x/LTM468x 2-wire serial interface. The pin-strapping resistors can be set at start-up by output voltages, switching frequency, and channel phase angle assignments.

Features

Dual, fast, analog loops with digital interface for control and monitoring
Wide input voltage range
±0.5% to ±1% maximum DC output error over temperature
±2.5% current readback accuracy at 9A load
400kHz PMBus-compliant I²C serial interface
Integrated 16-bit ΔΣ ADC
Constant frequency current mode control
Parallel and current share multiple modules

Readable Data
- Input and output voltages, currents, and temperatures
- Running peak values, uptime, faults, and warnings
- Onboard EEPROM fault log record
Writable Data and Configurable Parameters
- Output voltage, voltage sequencing, and margining
- Digital soft-start/stop ramp
- OV/UV/OT, UVLO, frequency, and phasing