LTC1706-82 Datasheet | Linear Technology

Features s Fully pliant with the Intel VRM9.0/9.1 VID Specification s Programs Regulator Output Voltage from 1.10V to 1.85V in 25m V Steps s Programs an Entire Family of Linear Technology DC/DC Converters s ±0.25% Accurate Voltage Divider s Built-In 40k Pull-Up Resistors on Program Inputs s Available in MSOP-10 Packaging U APPLICATIO S s Intel Pentium® III Processor Power Supply s Multiprocessor Workstations and Servers s Multiphase Processor Power Supply s AMD Athlon TM Processor Power Supply VID Voltage Programmer for Intel VRM9.0/9.1 DESCRIPTIO The LTC®1706-82 is a precision, digitally programmed, resistive ladder which adjusts the output of any 0.8V referenced regulator. Depending on the state of the five VID inputs, an output voltage between 1.10V and 1.85V is programmed in 25m V increments. The LTC1706-82 is designed specifically to program an entire family of Linear Technology DC/DC converters in full pliance with the Intel VRM9.0/9.1 specifications. The LTC1706-82 programs the following Linear Technology DC/DC converters: LTC1628, LTC1629, LTC1702, LTC1735, LTC1735-1, LTC1929 and LTC3729. For a pact VRM9.0/9.1 solution with up to 60A capability, see the LTC3732, a 3-phase synchronous controller with integrated 5-bit VID and MOSFET drivers. , LTC and LT are registered trademarks of Linear Technology Corporation. Pentium is a registered trademark of Intel Corporation. AMD Athlon is a trademark of Advanced Micro Devices, Inc. TYPICAL APPLICATIO VID Controlled High Current 4-Phase DC/DC Converter (Simplified Block Diagram) VIN 4.5V TO 22V FROM µP VID0 VCC VID1 SENSE VID2 LTC1706-82 VID3 VID4 GND NOTE: UP TO SIX LTC1629s CAN BE PARALLELED TO DELIVER AS MUCH AS 200A INTVCC TG1 SW1 LTC1629 BG1 VDIFFOUT PGND SGND EAIN TG2...