LTC3372EUK#PBF

LTC3372 is a highly flexible multioutput power supply IC. This device includes a high-performance, high voltage (HV) step-down DC/DC switching regulator controller that drives an all N-channel synchronous power FET stage from a 4.5V to 60V input. It also includes four low voltage (LV) synchronous buck regulators that can be programmed by the C1-C3 pins to share eight 1A integrated power stages in one of eight possible configurations. Each power stage is powered from independent inputs which may be connected to the HV buck’s VOUT or to other 2.25V to 5.5V supplies. The CT pin programs timing parameters of the watchdog timer and LV outputs’ Power-On Reset (RST). Precision enable thresholds facilitate reliable power-up sequencing. It is used in application such as automotive and industrial always-on systems, general purpose multi-channel power supplies etc.

• LV buck regulators: VINA-H = 2.25V to 5.5V, VOUT1-4 ≥ 0.8V
• 8×1A LV buck integrated power stages, configurable as 2, 3 or 4 output channels
• 8 unique output configurations (1A to 4A per channel)
• Programmable or synchronizable to external clock
• Programmable watchdog and power-on reset delay
• IC die temperature monitor output
• Total no-load input supply current (HV controller on only) is 23µA typical
• Operating temperature is -40°C to 125°C
• Package style is 48-lead plastic QFN

Notes

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