MAX17681 Series

4.5V to 42V Input, High-Efficiency, Iso-Buck DC-DC Converter

Manufacturer: Analog Devices Inc./Maxim Integrated

Catalog

4.5V to 42V Input, High-Efficiency, Iso-Buck DC-DC Converter

Part	Output Type	Total Output Count	Isolated Output Count	Supplied Contents	Board Type	Current - Output	Utilized IC / Part	Frequency - Switching	Main Purpose	Voltage - Input (Maximum)	Voltage - Input (Minimum)	Contents	Voltage - Output (Min)	Voltage - Output (Max)	Regulator Topology	Voltage - Output	Voltage - Input (Max)	Package / Case	Voltage - Output (Min/Fixed)	Operating Temperature (Max)	Operating Temperature (Min)	Voltage - Input (Min)	Package Name	Package Length	Package Width	Number of Outputs	Mounting Type	Topology	Function	Synchronous Rectifier	Output Configuration
Analog Devices Inc./Maxim Integrated MAX17681EVKITE#	Isolated	2	2 count	Board(s)	Fully Populated	75 mA	750342864 MAX17681	200 kHz	DC/DC Step Down	36 V	17 V	Board	-15 V	15 V	Buck
Analog Devices Inc./Maxim Integrated MAX17681AEVKITD#	Isolated	2	2 count	Board(s)	Fully Populated	200 mA	750342878 MAX17681	200 kHz	DC/DC Step Down	36 V	17 V	Board			Buck	7 V
Analog Devices Inc./Maxim Integrated MAX17681AEVKITB#	Isolated	2	2 count	Board(s)	Fully Populated	100 mA	750342779 MAX17681	200 kHz	DC/DC Step Down	36 V	17 V	Board	-7 V	7 V	Buck
Analog Devices Inc./Maxim Integrated MAX17681AEVKITC#	Isolated	2	2 count	Board(s)	Fully Populated	200 mA	750342859 MAX17681	200 kHz	DC/DC Step Down	36 V	17 V	Board			Buck	15 V
Analog Devices Inc./Maxim Integrated MAX17681EVKITB#	Isolated	2	2 count	Board(s)	Fully Populated	100 mA	750342779 MAX17681	200 kHz	DC/DC Step Down	36 V	17 V	Board	-7 V	7 V	Buck
Analog Devices Inc./Maxim Integrated MAX17681EVKITF#	Isolated	1	1	Board(s)	Fully Populated	100 mA	750342860 MAX17681	200 kHz	DC/DC Step Down	36 V	17 V	Board			Buck	24 V
Analog Devices Inc./Maxim Integrated MAX17681AEVKITE#	Isolated	2	2 count	Board(s)	Fully Populated	75 mA	750342864 MAX17681	200 kHz	DC/DC Step Down	36 V	17 V	Board	-15 V	15 V	Buck
Analog Devices Inc./Maxim Integrated MAX17681AATB+	Adjustable							200 kHz						40.32 V			42 V	10-WFDFN Exposed Pad	0.9 V	125 °C	-40 °C	4.5 V	10-TDFN	3 mm	2 mm	1	Surface Mount	Buck	Step-Down	Yes	Isolation Capable Positive
Analog Devices Inc./Maxim Integrated MAX17681EVKITD#	Isolated	2	2 count	Board(s)	Fully Populated	200 mA	750342878 MAX17681	200 kHz	DC/DC Step Down	36 V	17 V	Board			Buck	7 V
Analog Devices Inc./Maxim Integrated MAX17681EVKITC#	Isolated	2	2 count	Board(s)	Fully Populated	200 mA	750342859 MAX17681	200 kHz	DC/DC Step Down	36 V	17 V	Board			Buck	15 V

Catalog

4.5V to 42V Input, High-Efficiency, Iso-Buck DC-DC Converter

Description

The MAX17681/MAX17681A is a high-voltage, high-efficiency, iso-buck DC-DC converter designed to provide isolated power up to 5W. The device operates over a wide 4.5V to 42V input and uses primary-side feedback to regulate the output voltage.MAX17681/MAX17681A uses peak-current-mode control. The low-resistance, on-chip MOSFETs ensure high efficiency at full load while simplifying the PCB layout.The MAX17681/MAX17681A devices generate a well regulated primary side voltage which is then scaled by a suitable transformer turns ratio to derive isolated secondary output rails. While both MAX17681 and MAX17681A support primary side overcurrent protection, the MAX17681A is an enhanced design that supports robust secondary-side overcurrent protection as well.The MAX17681/MAX17681A is available in a compact 10-pin (3mm x 2mm) TDFN package. Simulation models are available.ApplicationsFloating Power Supply GenerationIsolated Fieldbus InterfacesIsolated Power Supplies in Medical EquipmentPLC I/O ModulesSmart Meters