Features and Benefits
- High-Power DC/DC Converter in Small Solution Size
- Operating VIN range of 4.5V to 36V
- Synchronous DC-DC Converter with Integrated FETs
- 8A/10A Maximum Output Current
- 400kHz and 1.5MHz Fixed Frequency Options
- Fixed Soft-Start Time
- 2.5ms for 400kHz
- 3.5ms for 1.5MHz
- 34ns Minimum On-Time
- Programmable Output Voltage
- 0.8V to 10V for 400kHz
- 0.8V to 6V for 1.5MHz
- Symmetric and Balanced SUP and PGND Pinout Placement for Better EMI Performance
- Thermally-Enhanced 3.5mm x 3.75mm, 17-Pin FC2QFN Package
- High Efficiency at All Load Ranges
- 10μA Quiescent Current in Skip Mode
- Up to 95.6% Eff. at 12VIN/3.3VOUT/400kHz
- Up to 93.9% Eff. at 12VIN/3.3VOUT/1.5MHz
- Dual-Phase Operation up to 20A Load Capability
- Frequency Synchronization Input/Output
- 180º Out-of-Phase Between Controller and Target
- Dynamic Current Sharing
- Forced PWM and Skip-Mode Operation
- 99% Duty Cycle Operation with Low Dropout Voltage
- Power Good Indicator
- Overtemperature and Short-Circuit Protection
- -40°C to +125°C Temperature Range
- Scalable Power Solution
- Footprint Compatible with MAX42405/MAX42406
The MAX42408/MAX42410 are highly-integrated synchronous buck converters with internal high-side and low-side switches. The ICs deliver up to 8A/10A with input voltage from 4.5V to 36V. The voltage quality can be monitored by the PGOOD signal. The MAX42408/MAX42410 can operate in the dropout mode by running at 99% duty cycle, which make them ideal for industrial applications.
The MAX42408/MAX42410 offer programmable output-voltage options. High switching frequency at 1.5MHz and 400kHz options allow for small external components and reduced output ripple. SYNC input programmability enables three modes for optimized performance: forced PWM mode, skip mode with ultra-low quiescent current, and synchronization to an external clock.
The MAX42408/MAX42410 also come with dual-phase capability, which allows up to 20A designs. Two ICs can be configured as a controller and target with dynamic current sharing and 180º out-of-phase operation.
The MAX42408/MAX42410 are available in a small 3.5mm x 3.75mm, 17-pin FC2QFN package. They are pin-to-pin compatible with the MAX42405/MAX42406 (5A to 6A) family of products.
- Industrial Automation
- Distributed DC Power Systems
Product Lifecycle Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
Evaluation Kits (1)
The MAX42410 evaluation kit (EV kit) provide a proven design to evaluate the MAX42410 synchronous buck converter with 10μA quiescent current. The EV kit comes with a MAX42410AFOB+ (1.5MHz) installed, as well as various test points and jumpers for evaluation. The EV kit output voltage is variable and is set to 3.3V. It can be easily configured to 0.8V to 6V (1.5MHz) or up to 10V (400kHz) with minimum component changes. The EV kit is designed to deliver up to 10A with input voltage 4.5V to 36V. The output voltage quality can be monitored by observing the PGOOD signal.
Documentation & Resources
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 Number||Material Declaration||Reliability Data||Pin/Package Drawing||CAD Symbols, Footprints & 3D Models|
|MAX42408AFOA+||Material Declaration||Reliability Data||17 LD, FC2QFN 3.5X3.75X|
|MAX42408AFOA+T||Material Declaration||Reliability Data||17 LD, FC2QFN 3.5X3.75X|
|MAX42408AFOB+||Material Declaration||Reliability Data||17 LD, FC2QFN 3.5X3.75X|
|MAX42408AFOB+T||Material Declaration||Reliability Data||17 LD, FC2QFN 3.5X3.75X|
|Wafer Fabrication Data|
Sample & Buy
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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.