DC2113A

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Analog Devices Inc./Maxim Integrated

POWER MANAGEMENT IC DEVELOPMENT TOOLS LTC3649 DEMO BOARD - 3.1V TO 60V INPUT D

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DC2113A

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Analog Devices Inc./Maxim Integrated

POWER MANAGEMENT IC DEVELOPMENT TOOLS LTC3649 DEMO BOARD - 3.1V TO 60V INPUT D

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Description Specifications Series Pricing CAD Documents

Description

General part information

LTC3649 Series

The LTC3649 is a high efficiency 60V, 4A synchronous monolithic step-down regulator. The regulator features a single resistor programmable output voltage, internal compensation and high efficiencies over a wide VOUTrange.The step-down regulator operates from an input voltage range of 3.1V to 60V and provides an adjustable rail-to-rail output range from (VIN– 0.5V) to ground while delivering up to 4A of output current. The switching frequency is also adjusted with an external resistor. A user-selectable mode input is provided to allow the user to trade off ripple noise for efficiency at light loads; Burst Mode operation provides the highest efficiency at light loads, while forced continuous mode provides low output ripple. The MODE/SYNC pin can also be used to allow the user to synchronize the switching frequency to an external clock.The LTC3649 operates with a peak current mode architecture that allows for fast transient response with inherent cycle-to-cycle current limit protection. It also features programmable output current limit, current monitoring and input voltage regulation.ApplicationsIndustrial ApplicationsAutomotive Applications

Technical Specifications

Parameters and characteristics for this part

Specification	DC2113A

Contents	Board
Current - Output	4 A
Frequency - Switching	500 kHz
Main Purpose	DC/DC, Step Down
Non-Isolated Output Count	1 count
Output Type	Non-Isolated
Regulator Topology	Buck
Total Output Count	1
Utilized IC / Part	LTC3649
Voltage - Input (Maximum)	60 V
Voltage - Input (Minimum)	4 V
Voltage - Output	3.3 V, 5 VDC
Voltage - Output	3.3V, 5V
Voltage - Output (Option 1)	3.3 V
Voltage - Output (Option 2)	5 V

LTC3649 Series

60V, 4A Synchronous Step-Down Regulator with Rail-to-Rail Programmable Output

Part	Voltage - Input (Min)	Number of Outputs	Function	Output Type	Voltage - Output (Min/Fixed)	Output Configuration	Current - Output	Frequency - Switching	Package Width	Package Name	Package Length	Topology	Voltage - Output (Max)	Voltage - Input (Max)	Operating Temperature (Max)	Operating Temperature (Min)	Package / Case	Synchronous Rectifier	Mounting Type	Package Features	Board Type	Supplied Contents	Total Output Count	Non-Isolated Output Count	Regulator Topology	Voltage - Output	Voltage - Output	Voltage - Output (Option 2)	Voltage - Output (Option 1)	Main Purpose	Voltage - Input (Maximum)	Voltage - Input (Minimum)	Contents	Utilized IC / Part
Analog Devices Inc./Maxim Integrated LTC3649EUFD#PBF	3.1 V	1	Step-Down	Adjustable	0 V	Positive	4 A	1 MHz	5 mm	28-QFN	4 mm	Buck	55 V	60 V	125 °C	-40 °C	28-WFQFN Exposed Pad	Yes	Surface Mount
Analog Devices Inc./Maxim Integrated LTC3649EFE#PBF	3.1 V	1	Step-Down	Adjustable	0 V	Positive	4 A	1 MHz	4.4 mm	28-TSSOP 28-TSSOP-EP	0.173 in	Buck	55 V	60 V	125 °C	-40 °C		Yes	Surface Mount	Exposed Pad
Analog Devices Inc./Maxim Integrated DC2112A				Non-Isolated			4 A	500 kHz													Fully Populated	Board(s)	1	1 count	Buck	3.3 V 5 VDC	3.3V 5V	5 V	3.3 V	DC/DC Step Down	60 V	4 V	Board	LTC3649
Analog Devices Inc./Maxim Integrated LTC3649IUFD#PBF	3.1 V	1	Step-Down	Adjustable	0 V	Positive	4 A	1 MHz	5 mm	28-QFN	4 mm	Buck	55 V	60 V	125 °C	-40 °C	28-WFQFN Exposed Pad	Yes	Surface Mount
Analog Devices Inc./Maxim Integrated LTC3649EFE	3.1 V	1	Step-Down	Adjustable	0 V	Positive	4 A	1 MHz	4.4 mm	28-TSSOP 28-TSSOP-EP	0.173 in	Buck	55 V	60 V	125 °C	-40 °C		Yes	Surface Mount	Exposed Pad
Analog Devices Inc./Maxim Integrated LTC3649IFE#PBF	3.1 V	1	Step-Down	Adjustable	0 V	Positive	4 A	1 MHz	4.4 mm	28-TSSOP 28-TSSOP-EP	0.173 in	Buck	55 V	60 V	125 °C	-40 °C		Yes	Surface Mount	Exposed Pad
Analog Devices Inc./Maxim Integrated LTC3649EUFD#TRPBF	3.1 V	1	Step-Down	Adjustable	0 V	Positive	4 A	1 MHz	5 mm	28-QFN	4 mm	Buck	55 V	60 V	125 °C	-40 °C	28-WFQFN Exposed Pad	Yes	Surface Mount
Analog Devices Inc./Maxim Integrated LTC3649IUFD#TRPBF	3.1 V	1	Step-Down	Adjustable	0 V	Positive	4 A	1 MHz	5 mm	28-QFN	4 mm	Buck	55 V	60 V	125 °C	-40 °C	28-WFQFN Exposed Pad	Yes	Surface Mount
Analog Devices Inc./Maxim Integrated DC2113A				Non-Isolated			4 A	500 kHz															1	1 count	Buck	3.3 V 5 VDC	3.3V 5V	5 V	3.3 V	DC/DC Step Down	60 V	4 V	Board	LTC3649
Analog Devices Inc./Maxim Integrated LTC3649IFE#TRPBF	3.1 V	1	Step-Down	Adjustable	0 V	Positive	4 A	1 MHz	4.4 mm	28-TSSOP 28-TSSOP-EP	0.173 in	Buck	55 V	60 V	125 °C	-40 °C		Yes	Surface Mount	Exposed Pad

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

DC2113A | Datasheet