
LTC3876EUHF#TRPBF
ActiveDUAL DC/DC CONTROLLER FOR DDR POWER WITH DIFFERENTIAL VDDQ SENSING AND ±50MA VTT REFERENCE
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LTC3876EUHF#TRPBF
ActiveDUAL DC/DC CONTROLLER FOR DDR POWER WITH DIFFERENTIAL VDDQ SENSING AND ±50MA VTT REFERENCE
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Technical Specifications
Parameters and characteristics for this part
| Specification | LTC3876EUHF#TRPBF |
|---|---|
| Applications | DDR, Controller |
| Mounting Type | Surface Mount |
| Number of Outputs | 2 |
| Operating Temperature [Max] | 125 °C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | 38-WFQFN Exposed Pad |
| Voltage - Input [Max] | 38 V |
| Voltage - Input [Min] | 4.5 V |
| Voltage - Output | Adjustable |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Tape & Reel (TR) | 2500 | $ 4.41 | |
Description
General part information
LTC3876 Series
The LTC3876 is a complete DDR power solution, compatible with DDR1, DDR2, DDR3 and future DDRX lower voltage standards. The LTC3876 includes VDDQ and VTT DC/DC controllers and a precision linear VTT reference. A differential output sense amplifier and precision internal reference combine to offer an accurate VDDQ supply. The VTT controller tracks the precision VTTR linear reference with less than 20mV total DC error. The precision VTTR reference maintains 1.2% regulation accuracy tracking onehalf VDDQ over temperature for a ±50mA reference load.The LTC3876 allows operation from 4.5V to 38V maximum at the input. The VDDQ output can range from 1.0V to 2.5V, with a corresponding VTT and VTTR output range of 0.5V to 1.25V. Voltage tracking soft-start, PGOOD and fault protection features are provided.ApplicationsMotherboard MemoryServers
Documents
Technical documentation and resources