DC2089A-A

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Analog Devices Inc./Maxim Integrated

POWER MANAGEMENT IC DEVELOPMENT TOOLS LTC3880EUJ/LTC3870EUFD RSENSE DEMO BOARD

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DC2089A-A

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Analog Devices Inc./Maxim Integrated

POWER MANAGEMENT IC DEVELOPMENT TOOLS LTC3880EUJ/LTC3870EUFD RSENSE DEMO BOARD

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Description Specifications Series Pricing CAD Documents

Description

General part information

LTC3880 Series

The LTC3880/LTC3880-1 are dual, PolyPhase DC/DC synchronous step-down switching regulator controllers with an I2C-based PMBus compliant serial interface. The controllers use a constant frequency, current mode architecture that is supported by LTpowerPlay™software development tool with graphical user interface (GUI).Switching frequency, output voltage, and device address can be programmed using external configuration resistors. Parameters can be set via the digital interface or stored in EEPROM. Voltage, current, internal/external temperature and fault status can be read back through the bus interface. The LTC3880 incorporates a 5V linear regulator while the LTC3880-1 uses an external 5V supply for minimum power loss. See comparison to LTC3887 below.VOUTStart-Up TimeMax VOUT0/1Fast ADC Mode for 1 ParameterLTC3887/LTC3887-135ms5.5V/5.5VNoLTC3880/LTC3880-1120ms4V/5.4VNoApplicationsHigh Current Distributed Power SystemsTelecom, Datacom and Storage SystemsIntelligent Energy Efficient Power Regulation

Technical Specifications

Parameters and characteristics for this part

Specification	DC2089A-A

Contents	Board
Current - Output	80 A
Frequency - Switching	350 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	LTC3880, LTC3870
Voltage - Input (Maximum)	14 V
Voltage - Input (Minimum)	7 V
Voltage - Output	1 V

LTC3880 Series

Dual Output PolyPhase Step-Down DC/DC Controller with Digital Power System Management

Part	Package / Case	Operating Temperature (Max)	Operating Temperature (Min)	Serial Interfaces	Topology	Clock Sync	Output Configuration	Output Phases	Function	Control Features	Voltage - Supply (Vcc/Vdd) Minimum	Voltage - Supply (Vcc/Vdd) Maximum	Mounting Type	Package Width	Package Name	Package Length	Number of Outputs	Synchronous Rectifier	Output Type	Current - Output	Main Purpose	Regulator Topology	Total Output Count	Non-Isolated Output Count	Voltage - Input (Maximum)	Voltage - Input (Minimum)	Voltage - Output	Frequency - Switching	Utilized IC / Part	Contents
Analog Devices Inc./Maxim Integrated LTC3880EUJ-1#TRPBF	40-WFQFN Exposed Pad	105 °C	-40 °C	I2C PMBus	Buck	Yes	Positive	2	Step-Down	Enable Frequency Control	4.5 V	24 V	Surface Mount	6 mm	40-QFN	6 mm	2	Yes	Transistor Driver
Analog Devices Inc./Maxim Integrated LTC3880IUJ#TRPBF	40-WFQFN Exposed Pad	125 °C	-40 °C	I2C PMBus	Buck	Yes	Positive	2	Step-Down	Enable Frequency Control	4.5 V	24 V	Surface Mount	6 mm	40-QFN	6 mm	2	Yes	Transistor Driver
Analog Devices Inc./Maxim Integrated DC2089A-A																			Non-Isolated	80 A	DC/DC Step Down	Buck	1	1 count	14 V	7 V	1 V	350 kHz	LTC3870 LTC3880	Board
Analog Devices Inc./Maxim Integrated LTC3880EUJ#TRPBF	40-WFQFN Exposed Pad	105 °C	-40 °C	I2C PMBus	Buck	Yes	Positive	2	Step-Down	Enable Frequency Control	4.5 V	24 V	Surface Mount	6 mm	40-QFN	6 mm	2	Yes	Transistor Driver
Analog Devices Inc./Maxim Integrated LTC3880IUJ-1#PBF	40-WFQFN Exposed Pad	125 °C	-40 °C	I2C PMBus	Buck	Yes	Positive	2	Step-Down	Enable Frequency Control	4.5 V	24 V	Surface Mount	6 mm	40-QFN	6 mm	2	Yes	Transistor Driver
Analog Devices Inc./Maxim Integrated LTC3880IUJ#PBF	40-WFQFN Exposed Pad	125 °C	-40 °C	I2C PMBus	Buck	Yes	Positive	2	Step-Down	Enable Frequency Control	4.5 V	24 V	Surface Mount	6 mm	40-QFN	6 mm	2	Yes	Transistor Driver
Analog Devices Inc./Maxim Integrated LTC3880IUJ-1#TRPBF	40-WFQFN Exposed Pad	125 °C	-40 °C	I2C PMBus	Buck	Yes	Positive	2	Step-Down	Enable Frequency Control	4.5 V	24 V	Surface Mount	6 mm	40-QFN	6 mm	2	Yes	Transistor Driver
Analog Devices Inc./Maxim Integrated LTC3880EUJ#PBF	40-WFQFN Exposed Pad	105 °C	-40 °C	I2C PMBus	Buck	Yes	Positive	2	Step-Down	Enable Frequency Control	4.5 V	24 V	Surface Mount	6 mm	40-QFN	6 mm	2	Yes	Transistor Driver
Analog Devices Inc./Maxim Integrated LTC3880EUJ-1#PBF	40-WFQFN Exposed Pad	105 °C	-40 °C	I2C PMBus	Buck	Yes	Positive	2	Step-Down	Enable Frequency Control	4.5 V	24 V	Surface Mount	6 mm	40-QFN	6 mm	2	Yes	Transistor Driver

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

DC2089A-A | Datasheet