LTC3880EUJ-1#TRMPBF

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The LTC3880EUJ-1#TRMPBF is a DC-DC switching controller that provides the flexibility of a digitally configurable version of the LTC3880. It includes synchronous buck and multiphase buck controllers capable of 8-phase operation. The LTC3880EUJ-1#TRMPBF allows for both synchronous and multiphase buck controller operation with embedded advanced current sharing, individual ZCD and overcurrent protection, as well as an integrated EEPROM that can store user-configurable settings.

The LTC3880EUJ-1#TRMPBF operates over an input voltage range of 2.62 V to 16 V, letting it deliver a regulated output voltage of 0.8 V to 14 V in single-ended topologies and 0 V to 9.6 V in dual-ended topologies. Its digital PMBus interface enables it to be programmed and monitored with embedded registers, commands, and fault protection. It also has a temperature sensor, improved transient load response, spread spectrum frequency modulation, and adjustable loop compensation.

The LTC3880EUJ-1#TRMPBF’s output voltage is set by sensing a feedback voltage. This input is used to regulate the output voltage by modulating the PWM duty cycle of the control loop. Any excess feedback voltage is fed back to the error amplifier and is averaged over time to maintain a constant output voltage. This dynamic system allows the effective output voltage range to be extended without sacrificing regulation accuracy.

To protect the LTC3880EUJ-1#TRMPBF and the associated circuitry, it comes equipped with advanced current-sharing, over-current protection, and under-voltage lockout. This feature set can also be supplemented by external components, such as transient voltage suppressors or external current-sense resistors.

This LTC3880EUJ-1#TRMPBF is best used in applications that require reliable high-efficiency power supply operation, such as CPU and GPU core-rail power supplies or as a chargers and power cycling systems. The controller’s digital control capabilities facilitate the design of systems requiring either high output-power density or ultra-low noise operation, as well as fine-tuned loop control schemes.

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