Analogue / Linear / Mixed Signal ICs 13A/26A DC/DC regulator from LTC

Analogue / Linear / Mixed Signal ICs 13A/26A DC/DC regulator from LTC

2013/10/25

Linear Technology has brought out a dual 13A or single 26A μModule(micromodule) step-down DC/DC regulator with a serial digital interface called LRM4676.

The interface enables system designers and remote operators to command and supervise a system’s power condition and consumption. The ability to digitally change power supply parameters reduces time-to-market and down time by eliminating what would have historically required physical hardware, circuit, and/or system bill-of-material modifications.

The LTM4676 simplifies system characterization, optimization and data mining during prototyping, deployment and field operation.

Target applications include optical transport systems, datacom and telecom switches and routers, industrial test equipment, robotics, RAID and enterprise systems where the cost of electrical utilities, cooling and maintenance are critical.

In addition to delivering power to a point-of-load, the LTM4676 features configurability and telemetry-monitoring of power and power management parameters over PMBus— an open standard I²C-based digital serial interface protocol.

The LTM4676’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, temperature, uptime and peak values are readable. The device is comprised of fast, dual analog control loops, precision mixed-signal circuitry, EEPROM, power MOSFETs, inductors and supporting components housed in a 16 x 16 x 5.01mm BGA (ball grid array) package.

To evaluate the performance of the LTM4676, the LTpowerPlay GUI USB-to-PMBus converter and demo kits are available.

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