DESCRIPTION
The LTC®1736 is a synchronous step-down switching regulator controller optimized for CPU power. The output voltage is programmed by a 5-bit digital-to-analog converter (DAC) that adjusts the output voltage from 0.925V to 2.00V according to Intel mobile VID specifications. The 0.8V reference is compatible with future microprocessor generations.

FEATURES
■ Dual N-Channel MOSFET Synchronous Drive
■ Synchronizable/Programmable Fixed Frequency
■ Wide VIN Range: 3.5V to 36V Operation
■ 5-Bit Digital-to-Analog VOUT Selection: 0.925V to 2.00V Range with 50mV/25mV Steps
■ OPTI-LOOPTM Compensation Minimizes COUT
■ ±1% Output Voltage Accuracy
■ Power Good Output Voltage Monitor
■ Active Voltage Positioning Compatible
■ Output Overvoltage Crowbar Protection
■ Internal Current Foldback
■ Latched Short-Circuit Shutdown Timer with Defeat Option
■ Forced Continuous Control Pin
■ Optional Programmable Soft-Start
■ Remote Output Voltage Sense
■ Available in 24-Lead SSOP Package

APPLICATIONS
■ Notebook and Palmtop Computers, PDAs
■ Power Supply for Mobile Pentium® II and Pentium III Processors
■ Low Voltage Power Supplies