- Analog Devices, Inc.
- ICT and Industrial
- Smart Factories and Robotics
The MAX1763x are high-efficiency, high-voltage synchronous step-down DC/DC converters with integrated MOS FETS that operate over an input voltage range of 3V to 36V. The MAX17636 can deliver 6A, the MAX17638 can deliver 8A, and the MAX17639 can deliver 10A of continuous current. In addition, the MAX17639 can support peak currents up to 12A. These devices can generate output voltages ranging from 0.6V to 90% of VIN.
The devices feature a MODE/SYNC pin that can be used to program the device for forced pulse-width modulation (PWM) or SWITCHES frequency modulation (SFM) mode operation and to synchronize the internal clock to an external clock. The devices feature an enable/input undervoltage lockout (EN/UVLO) pin that can program the input voltage required to turn the converter on and off. They also feature a soft-start (SS) pin that suppresses inrush current during startup. Additionally, the devices feature a RESET/TJ pin that can be used to monitor the output voltage or die temperature status. The die temperature monitor allows direct measurement of SILICONE die temperature, enabling robust and reliable POWER SUPPLIES designs without relying on theoretical estimates.
Features
-
Ultra-efficient design
R DS-ON 22mΩ/8mΩ power MOS FETS
24V IN, 5V OUT, 94.9% efficiency at 10A, 95.6% efficiency at 6A
External bias input for improved efficiency
I of 40 μA Q 24V at IN to 3.3V OUT Regulation to -
Up to 10A continuous output, 12A peak transient output (MAX17639)
-
Die Temperature Monitoring
-
Designed for low EMI
Symmetrical input voltage pins
Variable SWITCHES frequency: 400kHz with external clock synchronization z ~2.2MH z
4mm x 4mm 18-pin FC2QFN package -
Reduces external components and overall cost
Schottky-free synchronous rectification
Adjustable output range: 0.6V to V IN 90% of
Programmable soft-start and EN/UVLO thresholds -
Reliable operation in harsh industrial environments
Built-in overload protection with hiccup mode
Output voltage status monitoring and die temperature monitoring on the RESET/TJ pin
Wide industrial operating ambient temperature range: −40°C to +125°C / junction temperature range: −40°C to +150°C
application
- Factory and Building Automation
- Distributed DC POWER SUPPLIES System
- General-purpose POWER SUPPLIES
Order information
| Model | Temperature Range | PACKAGE TYPE |
|---|---|---|
| MAX17639AFN+ | -40℃ to +150℃ | 18-FC2QFN (4mm x 4mm) |
| MAX17639AFN+T | -40℃ to +150℃ | 18-FC2QFN (4mm x 4mm) |
| MAX17638AFN+* | -40℃ to +150℃ | 18-FC2QFN (4mm x 4mm) |
| MAX17638AFN+T* | -40℃ to +150℃ | 18-FC2QFN (4mm x 4mm) |
| MAX17636AFN+* | -40℃ to +150℃ | 18-FC2QFN (4mm x 4mm) |
| MAX17636AFN+T* | -40℃ to +150℃ | 18-FC2QFN (4mm x 4mm) |
T = Tape-and-reel.
* Potential future product.
Evaluation boards, simulation models
Detail Link
MAX17639Inquiry
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