LTC3867IUF#PBF

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Analog Devices

SYNCHRONOUS STEP-DOWN DC/DC CONTROLLER WITH DIFFERENTIAL REMOTE SENSE AND NONLINEAR CONTROL

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DocumentsR526 Reliability Data Datasheet

LTC3867IUF#PBF

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Analog Devices

SYNCHRONOUS STEP-DOWN DC/DC CONTROLLER WITH DIFFERENTIAL REMOTE SENSE AND NONLINEAR CONTROL

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DocumentsR526 Reliability Data Datasheet

Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LTC3867IUF#PBF

Clock Sync	False
Control Features	Power Good, Soft Start, Tracking, Frequency Control, Enable, Current Limit
Duty Cycle (Max) [Max]	98 %
Frequency - Switching [Max]	1.2 MHz
Frequency - Switching [Min]	200 kHz
Function	Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	125 ¯C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Phases	1
Output Type	Transistor Driver
Package / Case	24-WFQFN Exposed Pad
Supplier Device Package	24-QFN (4x4)
Synchronous Rectifier	True
Topology	Buck
Voltage - Supply (Vcc/Vdd) [Max]	38 V
Voltage - Supply (Vcc/Vdd) [Min]	4 V

LTC3867 Series

Synchronous Step-Down DC/DC Controller with Differential Remote Sense and Nonlinear Control

Part	Output Configuration	Output Type	Frequency - Switching [Max]	Frequency - Switching [Min]	Duty Cycle (Max) [Max]	Output Phases	Voltage - Supply (Vcc/Vdd) [Max]	Voltage - Supply (Vcc/Vdd) [Min]	Package / Case	Function	Number of Outputs	Supplier Device Package	Topology	Control Features	Mounting Type	Operating Temperature [Min]	Operating Temperature [Max]
Analog Devices LTC3867EUF#PBF	Positive	Transistor Driver	1.2 MHz	200 kHz	98 %	1	38 V	4 V	24-WFQFN Exposed Pad	Step-Down	1	24-QFN (4x4)	Buck	Current Limit Enable Frequency Control Power Good Soft Start Tracking	Surface Mount	-40 °C	125 ¯C
Analog Devices LTC3867IUF#TRPBF	Positive	Transistor Driver	1.2 MHz	200 kHz	98 %	1	38 V	4 V	24-WFQFN Exposed Pad	Step-Down	1	24-QFN (4x4)	Buck	Current Limit Enable Frequency Control Power Good Soft Start Tracking	Surface Mount	-40 °C	125 ¯C
Analog Devices LTC3867IUF#PBF	Positive	Transistor Driver	1.2 MHz	200 kHz	98 %	1	38 V	4 V	24-WFQFN Exposed Pad	Step-Down	1	24-QFN (4x4)	Buck	Current Limit Enable Frequency Control Power Good Soft Start Tracking	Surface Mount	-40 °C	125 ¯C

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	$ 10.29
		10	$ 7.16
		25	$ 6.36
		100	$ 5.45
		250	$ 5.02
		500	$ 4.75
		1000	$ 4.53

Description

General part information

LTC3867 Series

The LTC3867 is a current mode synchronous step-down switching regulator controller that drives all N-channel power MOSFET stages. Output voltage transient excursions are minimized by use of a nonlinear control architecture to eliminate clock latency issues.The maximum current sense voltage is programmable from 30mV to 75mV, allowing the use of either a discrete sense resistor or the inductor DCR as the sensing element. Programmable DCR temperature compensation allows constant current limit regardless of inductor temperature. Programmable inductor temperature-based thermal shutdown protects the power components from thermal stress. Soft recovery from output shorts or overcurrent minimizes output overshoot.The LTC3867 features a precision 0.6V reference and can regulate output voltages up to 14V from a wide 4V to 38V input supply range. The LTC3867 includes a high speed differential remote sense amplifier. Burst Mode®operation, continuous and pulse-skipping modes are supported. The LTC3867 is available in a 24-lead (4mm × 4mm) QFN package.ApplicationsAutomotive SystemsTelecom SystemsIndustrial EquipmentDistributed DC Power Systems