LTC3807HUDC#PBF

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Analog Devices

DC/DC CNTRLR SINGLE-OUT STEP DOWN 750KHZ 20-PIN QFN EP TUBE

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LTC3807HUDC#PBF

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Analog Devices

DC/DC CNTRLR SINGLE-OUT STEP DOWN 750KHZ 20-PIN QFN EP TUBE

Deep-Dive with AI

DocumentsLTpowerPlanner III Quick Start Guide LTpowerCAD II User Guide +1

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Technical Specifications

Parameters and characteristics for this part

Specification	LTC3807HUDC#PBF

Clock Sync	False
Control Features	Tracking, Enable, Soft Start, Frequency Control, Current Limit
Duty Cycle (Max) [Max]	99 %
Frequency - Switching [Max]	900 kHz
Frequency - Switching [Min]	50 kHz
Function	Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	150 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Phases	1
Output Type	Transistor Driver
Package / Case	20-WFQFN Exposed Pad
Supplier Device Package	20-QFN (3x4)
Synchronous Rectifier	True
Topology	Buck
Voltage - Supply (Vcc/Vdd) [Max]	38 V
Voltage - Supply (Vcc/Vdd) [Min]	4 V

LTC3807 Series

Low IQ, Synchronous Step-Down Controller with 24V Output Voltage Capability

Part	Frequency - Switching [Max]	Frequency - Switching [Min]	Package / Case	Output Type	Supplier Device Package	Operating Temperature [Max]	Operating Temperature [Min]	Number of Outputs	Control Features	Topology	Output Configuration	Duty Cycle (Max) [Max]	Output Phases	Voltage - Supply (Vcc/Vdd) [Max]	Voltage - Supply (Vcc/Vdd) [Min]	Function	Mounting Type	Package / Case [custom]	Package / Case [custom]	Package / Case [custom]
Analog Devices LTC3807HUDC#PBF	900 kHz	50 kHz	20-WFQFN Exposed Pad	Transistor Driver	20-QFN (3x4)	150 °C	-40 °C	1	Current Limit Enable Frequency Control Soft Start Tracking	Buck	Positive	99 %	1	38 V	4 V	Step-Down	Surface Mount
Analog Devices LTC3807EFE#TRPBF	900 kHz	50 kHz		Transistor Driver	20-TSSOP-EP	125 ¯C	-40 °C	1	Current Limit Enable Frequency Control Soft Start Tracking	Buck	Positive	99 %	1	38 V	4 V	Step-Down	Surface Mount	0.173 in 4.4 mm	Exposed Pad	20-TSSOP
Analog Devices LTC3807EFE#PBF	900 kHz	50 kHz		Transistor Driver	20-TSSOP-EP	125 ¯C	-40 °C	1	Current Limit Enable Frequency Control Soft Start Tracking	Buck	Positive	99 %	1	38 V	4 V	Step-Down	Surface Mount	0.173 in 4.4 mm	Exposed Pad	20-TSSOP
Analog Devices LTC3807EUDC#PBF	900 kHz	50 kHz	20-WFQFN Exposed Pad	Transistor Driver	20-QFN (3x4)	125 ¯C	-40 °C	1	Current Limit Enable Frequency Control Soft Start Tracking	Buck	Positive	99 %	1	38 V	4 V	Step-Down	Surface Mount
Analog Devices LTC3807MPFE#PBF	900 kHz	50 kHz		Transistor Driver	20-TSSOP-EP	150 °C	-55 °C	1	Current Limit Enable Frequency Control Soft Start Tracking	Buck	Positive	99 %	1	38 V	4 V	Step-Down	Surface Mount	0.173 in 4.4 mm	Exposed Pad	20-TSSOP
Analog Devices LTC3807HFE#TRPBF	900 kHz	50 kHz		Transistor Driver	20-TSSOP-EP	150 °C	-40 °C	1	Current Limit Enable Frequency Control Soft Start Tracking	Buck	Positive	99 %	1	38 V	4 V	Step-Down	Surface Mount	0.173 in 4.4 mm	Exposed Pad	20-TSSOP
Analog Devices LTC3807IUDC#TRPBF	900 kHz	50 kHz	20-WFQFN Exposed Pad	Transistor Driver	20-QFN (3x4)	125 ¯C	-40 °C	1	Current Limit Enable Frequency Control Soft Start Tracking	Buck	Positive	99 %	1	38 V	4 V	Step-Down	Surface Mount

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	$ 10.22
		10	$ 7.11
		25	$ 6.31
		100	$ 5.41
		250	$ 4.98
		500	$ 4.72
		1000	$ 4.50

Description

General part information

LTC3807 Series

The LTC3807 is a high performance step-down switching regulator DC/DC controller that drives an all N-channel synchronous power MOSFET stage. A constant frequency current mode architecture allows a phase-lockable frequency of up to 750kHz.The 50μA no-load quiescent current extends operating run time in battery-powered systems. OPTI-LOOP®compensation allows the transient response to be optimized over a wide range of output capacitance and ESR values. The LTC3807 features a precision 0.8V reference and power good output indicator. A wide 4V to 38V input supply range encompasses a wide range of intermediate bus voltages and battery chemistries. The output voltage of the LTC3807 can be programmed between 0.8V to 24V.The TRACK/SS pin ramps the output voltages during start-up. Current foldback limits MOSFET heat dissipation during short-circuit conditions. The PLLIN/MODE pin selects among Burst Mode operation, pulse-skipping mode, or continuous conduction mode at light loads.ApplicationsAutomotive Always-On SystemsBattery Powered Digital DevicesDistributed DC Power Systems

Documents

Technical documentation and resources

LTpowerPlanner III Quick Start Guide

Datasheet

LTpowerCAD II User Guide

Datasheet