LTC3807MPUDC#TRPBF

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Analog Devices Inc./Maxim Integrated

LOW IQ, SYNCHRONOUS STEP-DOWN CONTROLLER WITH 24V OUTPUT VOLTAGE CAPABILITY

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LTC3807MPUDC#TRPBF

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Analog Devices Inc./Maxim Integrated

LOW IQ, SYNCHRONOUS STEP-DOWN CONTROLLER WITH 24V OUTPUT VOLTAGE CAPABILITY

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Description Specifications Series Pricing CAD Documents

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

Technical Specifications

Parameters and characteristics for this part

Specification	LTC3807MPUDC#TRPBF

Clock Sync	No
Control Features	Tracking, Enable, Current Limit, Frequency Control, Soft Start
Duty Cycle (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)	-55 °C
Output Configuration	Positive
Output Phases	1
Output Type	Transistor Driver
Package / Case	20-WFQFN Exposed Pad
Package Length	3 mm
Package Name	20-QFN
Package Width	4 mm
Synchronous Rectifier	Yes
Topology	Buck
Voltage - Supply (Vcc/Vdd) Maximum	38 V
Voltage - Supply (Vcc/Vdd) Minimum	4 V

LTC3807 Series

Part	Synchronous Rectifier	Number of Outputs	Duty Cycle (Max)	Voltage - Supply (Vcc/Vdd) Minimum	Voltage - Supply (Vcc/Vdd) Maximum	Package / Case	Output Configuration	Mounting Type	Output Phases	Control Features	Package Length	Package Name	Package Width	Output Type	Operating Temperature (Min)	Operating Temperature (Max)	Function	Clock Sync	Topology	Frequency - Switching (Min)	Frequency - Switching (Max)	Package Features
Analog Devices Inc./Maxim Integrated LTC3807HUDC#PBF	Yes	1	99 %	4 V	38 V	20-WFQFN Exposed Pad	Positive	Surface Mount	1	Current Limit Enable Frequency Control Soft Start Tracking	3 mm	20-QFN	4 mm	Transistor Driver	-40 °C	150 °C	Step-Down	No	Buck	50 kHz	900 kHz
Analog Devices Inc./Maxim Integrated LTC3807EFE#TRPBF	Yes	1	99 %	4 V	38 V		Positive	Surface Mount	1	Current Limit Enable Frequency Control Soft Start Tracking	0.173 in	20-TSSOP 20-TSSOP-EP	4.4 mm	Transistor Driver	-40 °C	125 °C	Step-Down	No	Buck	50 kHz	900 kHz	Exposed Pad
Analog Devices Inc./Maxim Integrated LTC3807EFE#PBF	Yes	1	99 %	4 V	38 V		Positive	Surface Mount	1	Current Limit Enable Frequency Control Soft Start Tracking	0.173 in	20-TSSOP 20-TSSOP-EP	4.4 mm	Transistor Driver	-40 °C	125 °C	Step-Down	No	Buck	50 kHz	900 kHz	Exposed Pad
Analog Devices Inc./Maxim Integrated LTC3807HUDC#TRPBF	Yes	1	99 %	4 V	38 V	20-WFQFN Exposed Pad	Positive	Surface Mount	1	Current Limit Enable Frequency Control Soft Start Tracking	3 mm	20-QFN	4 mm	Transistor Driver	-40 °C	150 °C	Step-Down	No	Buck	50 kHz	900 kHz
Analog Devices Inc./Maxim Integrated LTC3807MPUDC#TRPBF	Yes	1	99 %	4 V	38 V	20-WFQFN Exposed Pad	Positive	Surface Mount	1	Current Limit Enable Frequency Control Soft Start Tracking	3 mm	20-QFN	4 mm	Transistor Driver	-55 °C	150 °C	Step-Down	No	Buck	50 kHz	900 kHz
Analog Devices Inc./Maxim Integrated LTC3807EUDC#PBF	Yes	1	99 %	4 V	38 V	20-WFQFN Exposed Pad	Positive	Surface Mount	1	Current Limit Enable Frequency Control Soft Start Tracking	3 mm	20-QFN	4 mm	Transistor Driver	-40 °C	125 °C	Step-Down	No	Buck	50 kHz	900 kHz
Analog Devices Inc./Maxim Integrated LTC3807MPFE#PBF	Yes	1	99 %	4 V	38 V		Positive	Surface Mount	1	Current Limit Enable Frequency Control Soft Start Tracking	0.173 in	20-TSSOP 20-TSSOP-EP	4.4 mm	Transistor Driver	-55 °C	150 °C	Step-Down	No	Buck	50 kHz	900 kHz	Exposed Pad
Analog Devices Inc./Maxim Integrated LTC3807IUDC#PBF	Yes	1	99 %	4 V	38 V	20-WFQFN Exposed Pad	Positive	Surface Mount	1	Current Limit Enable Frequency Control Soft Start Tracking	3 mm	20-QFN	4 mm	Transistor Driver	-40 °C	125 °C	Step-Down	No	Buck	50 kHz	900 kHz
Analog Devices Inc./Maxim Integrated LTC3807HFE#TRPBF	Yes	1	99 %	4 V	38 V		Positive	Surface Mount	1	Current Limit Enable Frequency Control Soft Start Tracking	0.173 in	20-TSSOP 20-TSSOP-EP	4.4 mm	Transistor Driver	-40 °C	150 °C	Step-Down	No	Buck	50 kHz	900 kHz	Exposed Pad
Analog Devices Inc./Maxim Integrated LTC3807MPUDC#PBF	Yes	1	99 %	4 V	38 V	20-WFQFN Exposed Pad	Positive	Surface Mount	1	Current Limit Enable Frequency Control Soft Start Tracking	3 mm	20-QFN	4 mm	Transistor Driver	-55 °C	150 °C	Step-Down	No	Buck	50 kHz	900 kHz

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

LTC3807MPUDC#TRPBF | Datasheet

Datasheet

Tape and Reel Packaging

R526 Reliability Data