LTC1706-63

LTC1706-63 5-Bit VID Voltage Programmer for Sun CPUs U U FEATURES ■ Programs Regulator Output Voltage Range from 1.025V to 1.4125V in 12.5mV Steps ■ Programs a Wide Range of Linear Technology DC/DC Converters with a 0.6V Reference ■ ±0.35% Accurate Output Voltage ■ Built-In 40k Pull-Up Resistors on VID Inputs ■ Available in MSOP-10 Package U APPLICATIO S ■ SunTM Processor Power Supply ■ Workstations and Servers ■ Large Memory Array Supply DESCRIPTIO The LTC®1706-63 is a precision, digitally programmed, resistive ladder which adjusts the output of any 0.6V referenced regulator. Depending on the state of the five VID inputs, an output voltage between 1.025V and 1.4125V is programmed in 12.5mV increments. The LTC1706-63 is designed specifically to program an entire family of Linear Technology DC/DC converters with on board 0.6V references. Please see the related parts list at the end of the data sheet. For a 2-phase synchronous controller with on-board LTC1706-63, see the LTC3819. , LTC and LT are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. TYPICAL APPLICATIO FROM µP 5-Bit VID-Controlled High Current Application (Simplified Block Diagram) VID0 VCC VID1 SENSE VID2 LTC1706-63 VID3 FB VID4 GND VIN 4.5V TO 22V VIN LTC1629-6 TG1 SW1 L1 RSENSE1 INTVCC BG1 VDIFFOUT PGND VIN SGND EAIN ITH TG2 SW2 BG2 L2 RSENSE2 VIN 4.5V TO 22V VOUT 1.025V TO 1.4125V + UP TO 80A COUT LTC1629-6 VIN TG1 S...