MAX17686
PRODUCTION4.5V to 60V Input, High-Efficiency, Iso-Buck DC-DC Converter
Reduces External Components and Cost for DC-DC Isolation
- Part Models
- 2
- 1ku List Price
- Starting From $2.57
Overview
- Reduces External Components and Total Cost
- No OptoCoupler
- Synchronous Primary Operation
- All-Ceramic Capacitors, Compact Layout
- Supports Numerous Isolated DC-DC Applications
- Wide 4.5V to 60V Input
- Delivers Up to 5W Output Power
- Reduces Power Dissipation
- Peak Efficiency > 90%
- 0.9µA (typ) Shutdown Current
- Operates Reliably in Adverse Industrial Environments
- Peak and Sink Current-Limit Protection
- Robust Secondary-Side Output Overcurrent Protection
- ±1.7% Feedback Accuracy
- Programmable EN/UVLO Threshold
- Adjustable Soft-Start
- Overtemperature Protection
- -40°C to +125°C Operation
The Rainier series of isolated DC-DC products enable small, efficient solutions with a lower BOM cost. The MAX17686 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 60V input and uses primary-side feedback to regulate the output voltage.
The MAX17686 uses peak-current-mode control. The lowresistance, on-chip MOSFETs ensure high efficiency at full load while simplifying the PCB layout.
The device generates a well regulated primary side voltage which is then scaled by a suitable transformer turns ratio to derive isolated secondary output rails. The MAX17686 features robust overcurrent protection on both the primary and secondary side.
The MAX17686 is available in a compact 10-pin (3mm x 2mm) TDFN package. Simulation model and design automation are available in EE-Sim.
Applications
- Floating Power Supply Generation
- Isolated Fieldbus Interfaces
- Isolated Power Supplies in Medical Equipment
- PLC I/O Modules
- Smart Meters
Documentation
Data Sheet 1
Technical Articles 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| MAX17686ATB+ | Thin Dual Flatpack No Leads | ||
| MAX17686ATB+T | Thin Dual Flatpack No Leads |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Apr 20, 2026 - 2571D PIN/ERRATA |
||
| MAX17686ATB+T | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Can't find the software or driver you need?
Request a Driver/SoftwareTools & Simulations
ADI Power Studio™ Designer
ADI Power Studio™ Designer is the next-generation tool for IC-level, power supply design, guiding engineers to faster, validated solutions.
Learn MoreEvaluation Kits
Evaluation Kit for the MAX17686 for Isolated +24V Output Configuration
Resources
Latest Discussions
No discussions on MAX17686 yet. Have something to say?
Start a Discussion on EngineerZone®