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Overview
| Topology | Buck Converter |
| Input voltage | 17-36 V |
| Output 1 | -5 V / 0.05 A |
| Output 2 | 7 V / 0.1 A |
| Output 3 | -7 V / 0.1 A |
| Output 4 | 5 V / 0.05 A |
| IC revision | 1 |
Description
The MAX17681EVKITB is a fully assembled and tested circuit board that demonstrates the performance of the MAX17681 high-efficiency, iso-buck DC-DC converter. The EV kit operates over a wide input-voltage range of 17V to 36V and uses primary-side feedback to regulate the output voltage. The EV kit has two output configurations. In configuration one the output is programmed to ±7V@100mA, with ±8% output voltage regulation. The second configuration uses a post regulator, MAX17651 to produce ±5V@50mA with < ±3% regulation. The EV kit comes installed with the MAX17681 in a 10-pin (3mm x 2mm) TDFN package and MAX17651 in a 6-lead TSOT package.
Features
- 17V to 36V Input Voltage Range
- ±7V, 100mA or ±5V, 50mA Continuous Current
- EN/UVLO Input
- 200kHz Switching Frequency
- 87.5% Peak Efficiency
- Overcurrent Protection
- No Optocoupler
- Delivers up to 1.4W Output Power
- Overtemperature Protection
- Proven PCB Layout
Typical applications
- Floating Power Supply Generation, Isolated Power Supplies in Medical Equipment
- Isolated Fieldbus Interfaces, PLC I/O Modules, Smart Meters
