DC/DC Controller Packs Digital Power System Management

The LTC3880/-1, a dual-output synchronous step-down DC/DC controller, integrates an I²C-based PMBus interface for digital power system management. Supported by the LTpowerPlay software development system with graphical user interface, the device allows for digital programming and read back for real-time control and monitoring. Programmable control parameters include output voltage, margining and current limits, input and output supervisory limits, power-up sequencing and tracking, switching frequency and identification, and traceability data. Additionally, on-chip data converters and EEPROM allow for the capture and nonvolatile storage of regulator configuration settings and telemetry variables, including input and output voltages and currents, duty cycle, temperature, and fault logging. Pricing starts at $5.35 each each/1,000. LINEAR TECHNOLOGY CORP., Milpitas, CA. (800) 454-6327.