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24 QFN
Integrated Circuits (ICs)

LTC3776EUF#TRPBF

Active
Analog Devices Inc./Maxim Integrated

DUAL 2-PHASE, NO RSENSE™,SYNCHRONOUS CONTROLLER FOR DDR/QDR MEMORY TERMINATION

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DocumentsTape and Reel PackagingDatasheet+1
24 QFN
Integrated Circuits (ICs)

LTC3776EUF#TRPBF

Active
Analog Devices Inc./Maxim Integrated

DUAL 2-PHASE, NO RSENSE™,SYNCHRONOUS CONTROLLER FOR DDR/QDR MEMORY TERMINATION

Deep-Dive with AI

DocumentsTape and Reel PackagingDatasheet+1

Technical Specifications

Parameters and characteristics for this part

SpecificationLTC3776EUF#TRPBF
ApplicationsQDR, DDR, Controller
Mounting TypeSurface Mount
Number of Outputs2
Operating Temperature [Max]85 °C
Operating Temperature [Min]-40 C
Package / Case24-WFQFN Exposed Pad
Supplier Device Package24-QFN (4x4)
Voltage - Input [Max]9.8 V
Voltage - Input [Min]2.75 V
Voltage - Output [Max]9.8 V
Voltage - Output [Min]0.3 V

LTC3776 Series

Dual 2-Phase, No RSENSE™,Synchronous Controller for DDR/QDR Memory Termination

PartVoltage - Input [Max]Voltage - Input [Min]Mounting TypeSupplier Device PackageOperating Temperature [Max]Operating Temperature [Min]ApplicationsNumber of OutputsVoltage - Output [Min]Voltage - Output [Max]Package / Case [y]Package / Case
24 SSOP
Analog Devices Inc./Maxim Integrated
LTC3776EGN#TRPBF
9.8 V
2.75 V
Surface Mount
24-SSOP
85 °C
-40 C
Controller
DDR
QDR
2
0.3 V
9.8 V
0.154 in
3.9 mm Width
24-SSOP
24 QFN
Analog Devices Inc./Maxim Integrated
LTC3776EUF#TRPBF
9.8 V
2.75 V
Surface Mount
24-QFN (4x4)
85 °C
-40 C
Controller
DDR
QDR
2
0.3 V
9.8 V
24-WFQFN Exposed Pad
24 SSOP
Analog Devices Inc./Maxim Integrated
LTC3776EGN#PBF
9.8 V
2.75 V
Surface Mount
24-SSOP
85 °C
-40 C
Controller
DDR
QDR
2
0.3 V
9.8 V
0.154 in
3.9 mm Width
24-SSOP
LTC3776EUF#PBF
Analog Devices Inc./Maxim Integrated
LTC3776EUF#PBF
9.8 V
2.75 V
Surface Mount
24-QFN (4x4)
85 °C
-40 C
Controller
DDR
QDR
2
0.3 V
9.8 V
24-WFQFN Exposed Pad
24 SSOP
Analog Devices Inc./Maxim Integrated
LTC3776EGN
9.8 V
2.75 V
Surface Mount
24-SSOP
85 °C
-40 C
Controller
DDR
QDR
2
0.3 V
9.8 V
0.154 in
3.9 mm Width
24-SSOP

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

DistributorPackageQuantity$Updated
DigikeyN/A 0$ 6.241m+
Tape & Reel (TR) 2500$ 6.241m+

Description

General part information

LTC3776 Series

The LTC3776 is a 2-phase dual output synchronous stepdown switching regulator controller for DDR/QDR memory termination applications. The second controller regulates its output voltage to 1/2 VREFwhile providing symmetrical source and sink output current capability.The No RSENSEconstant frequency current mode architecture eliminates the need for sense resistors and improves efficiency. Power loss and noise due to the ESR of the input capacitance are minimized by operating the two controllers out of phase.The switching frequency can be programmed up to 750kHz, allowing the use of small surface mount inductors and capacitors. For noise sensitive applications, the LTC3776 switching frequency can be externally synchronized from 250kHz to 850kHz, or can be enabled for spread spectrum operation. Forced continuous operation reduces noise and RF interference. Soft-start for VOUT1is provided internally and can be extended using an external capacitor.The LTC3776 is available in the tiny thermally enhanced (4mm × 4mm) QFN package or 24-lead SSOP narrow package.Protected by U.S. Patents including 5481178, 5929620, 6144194, 6580258, 6304066, 6611131, 6498466, patent pending on Spread Spectrum.ApplicationsDDR, DDR II and QDR MemorySSTL, HSTL Termination SuppliesServers, RAID SystemsDistributed DC Power Systems