LTC1706-81

Features:

Programs Regulator Output Voltage Range from
    1.3V to 2.05V in 50mV Steps and from 2.1V to 3.5V
    in 100mV Steps (VRM 8.4)
 Programs a Wide Range of Linear Technology
    DC/DC Converters with a 0.8V Reference
 Fully Compliant with the Intel Pentium^® Processor
    Desktop VID Specification
 ±0.25% Accurate Output Voltage
 Built-In 40k Pull-Up Resistors on VID Inputs
 Available in MSOP-10 Package


Application

 Intel Pentium II and III Processor Power Supply
AMD Athlon^TM Processor Power Supply
 Workstations and Servers
Large Memory Array Supply


Pinout




Specifications

(Voltages Referred to GND Pin)
Input Supply Voltage (V_CC) ..........................   0.3V to 7V
VID Input Pins .............................................    0.3V to 7V
SENSE Pin ...................................................     0.3V to 7V
FB Pin ..........................................................     0.3V to 7V
Operating Temperature Range (Note 2) .. 40°C to 85°C
Junction Temperature...........................................    110°C
Storage Temperature Range ................. 65°C to 150°C
Lead Temperature (Soldering, 10 sec) ..................   300°C


Description

The LTC^® 1706-81 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 1.3V and 3.5V is
programmed in 50mV and 100mV increments.

The LTC1706-81 is designed specifically to program an entire family of Linear Technology DC/DC converters in full compliance with the Intel Desktop (VRM 8.4) VID specification.

The LTC1706-81 programs the following Linear Technology DC/DC converter products: LTC1622, LTC1628, LTC1629, LTC1702, LTC1735, LTC1735-1, LTC1772 and LTC1929. (Consult factory for future compatible DC/DC converter products.)