LTC3816

LTC3816 Features Single-Phase Wide VIN Range DC/DC Controller for Intel IMVP-6/IMVP-6.5 CPUs Description n Supports 7-Bit IMVP-6/IMVP-6.5 VID Code and Features n Wide VIN Range: 4.5V to 36V Operation with Optional Line Feedforward Compensation n tON(MIN) < 35ns, Capable of Very Low Duty Cycle n Temperature Compensated Inductor DCR or Sense Resistor Output Current Monitoring n Differential Remote Output Voltage Sensing with Programmable Active Voltage Positioning n Phase-Lockable Fixed Frequency: 150kHz to 550kHz n Programmable UVLO, Preset VOUT at Boot-Up n Programmable Slow Slew Rate Sleep State Exit n Internal LDO for Single Supply Operation n Overvoltage and Overcurrent Protection n PWRGD and VRTT# Thermal Throttling Flags n Power Optimization During Sleep and Light Load n 38-Pin Thermally Enhanced eTSSOP and 5mm × 7mm QFN Packages Applications The LTC®3816 is a single-phase synchronous step-down DC/DC switching regulator controller that drives N-channel power MOSFETs in a constant-frequency voltage mode architecture. The controller’s leading edge modulation topology allows extremely low output voltages and supports a phase-lockable switching frequency up to 550kHz. The output voltage is programmed using a 7-bit VID code. The LTC3816 features all of the IMVP-6/IMVP-6.5 requirements, including start-up to a preset boot voltage, differential remote output voltage sensing with programmable active voltage positioning, IMON output current reporting, power optim...