LTC3876EUHF#PBF

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Analog Devices Inc./Maxim Integrated

DUAL DC/DC CONTROLLER FOR DDR POWER WITH DIFFERENTIAL VDDQ SENSING AND ±50MA VTT REFERENCE

LTC3876EUHF#PBF

Active

Analog Devices Inc./Maxim Integrated

DUAL DC/DC CONTROLLER FOR DDR POWER WITH DIFFERENTIAL VDDQ SENSING AND ±50MA VTT REFERENCE

Description Specifications Series Pricing CAD Documents

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

Technical Specifications

Parameters and characteristics for this part

Specification	LTC3876EUHF#PBF

Applications	Controller, DDR
Mounting Type	Surface Mount
Number of Outputs	2
Operating Temperature (Max)	125 °C
Operating Temperature (Min)	-40 °C
Package / Case	38-WFQFN Exposed Pad
Package Length	5 mm
Package Name	38-QFN
Package Width	7 mm
Voltage - Input (Maximum)	38 V
Voltage - Input (Minimum)	4.5 V
Voltage - Output	Adjustable

LTC3876 Series

Part	Voltage - Output	Operating Temperature (Max)	Operating Temperature (Min)	Package / Case	Voltage - Input (Maximum)	Voltage - Input (Minimum)	Mounting Type	Number of Outputs	Applications	Package Width	Package Name	Package Length	Package Features
Analog Devices Inc./Maxim Integrated LTC3876EUHF#PBF	Adjustable	125 °C	-40 °C	38-WFQFN Exposed Pad	38 V	4.5 V	Surface Mount	2	Controller DDR	7 mm	38-QFN	5 mm
Analog Devices Inc./Maxim Integrated LTC3876IFE#PBF	Adjustable	125 °C	-40 °C		38 V	4.5 V	Surface Mount	2	Controller DDR	4.4 mm	38-TFSOP 38-TSSOP-EP	0.173 in	Exposed Pad
Analog Devices Inc./Maxim Integrated LTC3876IUHF#TRPBF	Adjustable	125 °C	-40 °C	38-WFQFN Exposed Pad	38 V	4.5 V	Surface Mount	2	Controller DDR	7 mm	38-QFN	5 mm
Analog Devices Inc./Maxim Integrated LTC3876IFE#TRPBF	Adjustable	125 °C	-40 °C		38 V	4.5 V	Surface Mount	2	Controller DDR	4.4 mm	38-TFSOP 38-TSSOP-EP	0.173 in	Exposed Pad
Analog Devices Inc./Maxim Integrated LTC3876EFE	Adjustable	125 °C	-40 °C		38 V	4.5 V	Surface Mount	2	Controller DDR	4.4 mm	38-TFSOP 38-TSSOP-EP	0.173 in	Exposed Pad
Analog Devices Inc./Maxim Integrated LTC3876EFE#PBF	Adjustable	125 °C	-40 °C		38 V	4.5 V	Surface Mount	2	Controller DDR	4.4 mm	38-TFSOP 38-TSSOP-EP	0.173 in	Exposed Pad
Analog Devices Inc./Maxim Integrated LTC3876IFE	Adjustable	125 °C	-40 °C		38 V	4.5 V	Surface Mount	2	Controller DDR	4.4 mm	38-TFSOP 38-TSSOP-EP	0.173 in	Exposed Pad
Analog Devices Inc./Maxim Integrated LTC3876IUHF#PBF	Adjustable	125 °C	-40 °C	38-WFQFN Exposed Pad	38 V	4.5 V	Surface Mount	2	Controller DDR	7 mm	38-QFN	5 mm
Analog Devices Inc./Maxim Integrated LTC3876EFE#TRPBF	Adjustable	125 °C	-40 °C		38 V	4.5 V	Surface Mount	2	Controller DDR	4.4 mm	38-TFSOP 38-TSSOP-EP	0.173 in	Exposed Pad
Analog Devices Inc./Maxim Integrated LTC3876EUHF#TRPBF	Adjustable	125 °C	-40 °C	38-WFQFN Exposed Pad	38 V	4.5 V	Surface Mount	2	Controller DDR	7 mm	38-QFN	5 mm

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

R526 Reliability Data

LTC3876EUHF#PBF | Datasheet