LTC3874EUFD#PBF

Active

Analog Devices

POLYPHASE STEP-DOWN SYNCHRONOUS SLAVE CONTROLLER WITH SUB-MILLIOHM DCR SENSING

Deep-Dive with AI

Search across all available documentation for this part.

DocumentsR526 Reliability Data Datasheet

LTC3874EUFD#PBF

Active

Analog Devices

POLYPHASE STEP-DOWN SYNCHRONOUS SLAVE CONTROLLER WITH SUB-MILLIOHM DCR SENSING

Deep-Dive with AI

DocumentsR526 Reliability Data Datasheet

Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LTC3874EUFD#PBF

Clock Sync	True
Control Features	Current Limit, Enable, Phase Control, Frequency Control
Frequency - Switching [Max]	1 MHz
Frequency - Switching [Min]	250 kHz
Function	Step-Down
Mounting Type	Surface Mount
Number of Outputs	2
Operating Temperature [Max]	125 ¯C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Phases	2
Output Type	Transistor Driver
Package / Case	28-WFQFN Exposed Pad
Supplier Device Package	28-QFN (4x5)
Synchronous Rectifier	True
Topology	Buck
Voltage - Supply (Vcc/Vdd) [Max]	38 V
Voltage - Supply (Vcc/Vdd) [Min]	4.5 V

LTC3874-1 Series

PolyPhase Step-Down Synchronous Slave Controller with Sub-Milliohm DCR Sensing

Part	Number of Outputs	Function	Frequency - Switching [Max]	Frequency - Switching [Min]	Topology	Operating Temperature [Min]	Operating Temperature [Max]	Voltage - Supply (Vcc/Vdd) [Max]	Voltage - Supply (Vcc/Vdd) [Min]	Output Configuration	Package / Case	Output Phases	Supplier Device Package	Control Features	Mounting Type	Output Type
Analog Devices LTC3874IUF-1#TRPBF	2	Step-Down	1 MHz	250 kHz	Buck	-40 °C	125 ¯C	38 V	4.5 V	Positive	24-WFQFN Exposed Pad	2	24-QFN (4x4)	Current Limit Enable Frequency Control Phase Control	Surface Mount	Transistor Driver
Analog Devices LTC3874IUFD#PBF	2	Step-Down	1 MHz	250 kHz	Buck	-40 °C	125 ¯C	38 V	4.5 V	Positive	28-WFQFN Exposed Pad	2	28-QFN (4x5)	Current Limit Enable Frequency Control Phase Control	Surface Mount	Transistor Driver
Analog Devices LTC3874EUFD#PBF	2	Step-Down	1 MHz	250 kHz	Buck	-40 °C	125 ¯C	38 V	4.5 V	Positive	28-WFQFN Exposed Pad	2	28-QFN (4x5)	Current Limit Enable Frequency Control Phase Control	Surface Mount	Transistor Driver
Analog Devices LTC3874IUFD#TRPBF	2	Step-Down	1 MHz	250 kHz	Buck	-40 °C	125 ¯C	38 V	4.5 V	Positive	28-WFQFN Exposed Pad	2	28-QFN (4x5)	Current Limit Enable Frequency Control Phase Control	Surface Mount	Transistor Driver

Pricing

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

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 8.56
		10	$ 5.75
		73	$ 4.36
		146	$ 4.02
		292	$ 3.73
		511	$ 3.71

Description

General part information

LTC3874-1 Series

The LTC3874-1 is a dual PolyPhase®current mode synchronous step-down slave controller. It enables high current, multiphase applications when paired with a companion master controller by extending the phase count. Compatible master controllers include the LTC3884-1, LTC3774, LTC3875, LTC3877 and LTC3866. The LTC3874-1 employs a unique architecture that enhances the signal-to-noise ratio of the current sense signal, allowing the use of submilliohm DC resistance power inductors to maximize efficiency while reducing switching jitter. Its peak current mode architecture allows for accurate phase-to-phase current sharing even for dynamic loads.Effectively working with a master controller, the LTC3874-1 supports all the programmable features as well as fault protection.ApplicationsHigh Current Distributed Power SystemsTelecom, Datacom and Storage SystemsIntelligent Energy Efficient Power Regulation