MAX17687
PRODUCTION4.5V to 60V Input, Ultra-Small, High-Efficiency, Iso-Buck DC-DC Converter
Reduce External Components, Solution Size and Cost for DC-DC Isolation
- Part Models
- 2
- 1ku List Price
- Starting From $3.95
Overview
- Eliminates External Components and Reduces Total Cost
- Synchronous Primary Operation for High Efficiency and Reduced Cost
- All-Ceramic Capacitors, Ultra-Compact Layout
- Supports Numerous Isolated DC-DC Applications
- Wide 4.5V to 60V Input Voltage Range
- Delivers up to 3.2A Peak Current
- 100kHz to 500kHz Adjustable Frequency with External Synchronization
- Available in a 20-Pin, 4mm x 4mm TQFN Package
- Reduces Power Dissipation
- Peak Efficiency > 90%
- Shutdown Current = 2.8μA (typ)
- Operates Reliably in Adverse Industrial Environments
- Hiccup-Mode Current Limit, Sink Current Limit, and Auto-Retry Startup
- Programmable EN/UVLO Threshold
- Adjustable Soft-Start
- -40°C to +125°C Ambient Operating Temperature Range
- -40°C to +150°C Junction Temperature Range
The Rainier series of isolated DC-DC products enable small, efficient solutions with a lower BOM. The MAX17687 is a high-voltage, high-efficiency, iso-buck DC-DC converter designed to provide isolated power up to 10W. The device operates over a wide 4.5V to 60V input voltage range and uses primary-side feedback to regulate the output voltage. It delivers primary peak current up to 3.2A and regulates primary output voltage to within ±1.2%.
The device features peak-current-mode control with pulse-width modulation (PWM) scheme. The low-resistance, on-chip MOSFETs ensure high efficiency at full load and simplify the layout.
A programmable soft-start feature allows users to reduce input inrush current. The device also incorporates an output enable/undervoltage lockout pin (EN/UVLO) that allows the user to turn on the part at the desired input-voltage level. An open-drain active-low RESET pin provides a delayed power-good signal to the system upon achieving successful regulation of the primary output voltage.
The device operates from -40°C to +125°C and is available in a compact 20-pin (4mm x 4mm) TQFN package. Simulation models are available.
Applications
- Communication Hub in Smart Meters
- Floating Power Supply Generation
- Industrial Process Control
- Isolated Power Supplies in Medical Equipment
Documentation
Data Sheet 1
Technical Articles 1
Video 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 |
|---|---|---|---|
| MAX17687ATP+ | Thin Quad Flatpack, No Leads | ||
| MAX17687ATP+T | Thin Quad Flatpack, No Leads |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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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 MAX17687 for Isolated +12V Output Configuration
Resources
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