MAXREFDES1168, 7V/200mA or 5V/100mA, Iso-Buck DC-DC Converter Reference Design Using the MAX17681A
Reference Design using part MAX17681AATB+ by Analog Devices
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For End Products
- DC to DC Power Supply
Description
- MAXREFDES1168, Reference Design for the 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. The MAX17681A uses peak-current-mode control. Low-resistance, on-chip MOSFETs ensure high efficiency at full load while simplifying the PCB layout. The 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
Key Features
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Conversion TypeDC to DC
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Input Voltage17 to 36 V
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Output Voltage4.95 to 5.05|6.5 to 7.6 V
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Output Current0.2 A
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Output Power0.5|1.6 W
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Efficiency92.2 %
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TopologyBuck
Featured Parts (4)
| Part Number | Manufacturer | Type | Description | |||
|---|---|---|---|---|---|---|
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MAX17651AZT+ | Analog Devices | Linear Regulators | LDO Regulator Pos 0.6V to 58V 0.1A 6-Pin TSOT-23 T/R | Buy | |
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MAX17651AZT+T | Analog Devices | Linear Regulators | LDO Regulator Pos 0.6V to 58V 0.1A 6-Pin TSOT-23 T/R | Buy | |
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MAX17681AATB+T | Analog Devices | DC to DC Converter and Switching Regulator Chip | Conv DC-DC 4.5V to 42V Synchronous Step Down Single-Out 0.9V to 40.32V 5W 10-Pin TDFN EP T/R | Buy | |
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MAX17681AATB+ | Analog Devices | DC to DC Converter and Switching Regulator Chip | Conv DC-DC 4.5V to 42V Synchronous Step Down Single-Out 0.9V to 40.32V 5W 10-Pin TDFN EP T/R | Buy | |