The LTC3850 is a dual synchronous step-down DC/DC controller designed by Linear Technology, now part of Analog Devices, Inc.
It is used for high-efficiency voltage regulation in laptop motherboards, desktop VRM circuits, and embedded power systems.
This controller drives external N-channel MOSFETs to deliver tightly regulated output voltages with high transient response and low ripple.
The LTC3850 supports 2-phase operation, programmable current limit, soft-start, and power-good monitoring, ensuring stable performance in compact high-current power designs.