MAX25320
RECOMMENDED FOR NEW DESIGNSASIL-D Compliant Dual 1A Low-Voltage Buck Converter
Only ASIL-D PMIC That Enables ASIL-D Functional Safety System in the Qualcomm Snapdragon Ride Platform
- Part Models
- 2
- 1ku List Price
- Starting From $4.03
Overview
- High Feature Set in Small Footprint
- High-Efficiency, Dual 1A DC-DC Converters
- 3.3V Operating Supply Voltage
- Factory Preset Output Voltage
- 2.1MHz Switching Frequency
- Individual Enable Inputs
- Active-low RESET and active-low INT Open-Drain Outputs
- Spread-Spectrum Oscillator
- I2C Interface
- Peak Current Mode Architecture
- PWM and SKIP Mode Operation
- 4mm x 4mm 20-Pin TQFN
- High Precision
- ±1% OV/UV Accuracy
- ±1% Output Voltage Accuracy
- Excellent Load Transient Performance
- MAXQ Power Architecture
- ASIL D Compliant
- Redundant Reference
- BIST Diagnostics
- PEC on I2C
- Programmable OV/UV Thresholds
- High Efficiency
- Up to 91% Efficiency 3.3V to 1.8V
- Up to 85% Efficiency 3.3V to 0.825V
- -40°C to +125°C Operating Temperature Range
- AEC-Q100 Qualified
The MAX25320 is a high-efficiency dual switching regulator which delivers up to 1A load current per output from 0.5V to 1.59375V in 6.25mV steps and 1.6V to 3.6V in 25mV steps. The IC operates from a 3.3V supply, making it ideal for on-board point-of-load and post regulation applications. Total output error is less than ±1% over load, line, and temperature.
The MAX25320 features fixed-frequency PWM mode or SKIP mode operation with a switching frequency of 2.1MHz. The high-frequency operation allows for an all-ceramic capacitor design and also allows for small-size external components.
The device features the MAXQ® technology, which provides precision transient performance and phase margin. This allows obtaining the maximum power, performance, and precision from the converter over a very wide range of configurations.
The MAX25320 provides an enable input and output. The output voltage is preset at the factory to allow customers to achieve ±1% output-voltage accuracy without using expensive 0.1% resistors. The device offers factory-programmable soft-start and active-low RESET times.
The device includes overtemperature shutdown and overcurrent limiting. It is designed to operate from –40°C to +125°C ambient temperature range.
Applications
- Secondary Regulator for SoC/MCU Supply
Documentation
Data Sheet 1
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Complete documentation is available upon completion of a Non-Disclosure Agreement (NDA).
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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 |
|---|---|---|---|
| MAX25320ATPA/VY+ | LFCSP | ||
| MAX25320ATPA/VY+T | LFCSP |
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.
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Evaluation Kits
Evaluation Kit for the MAX25320
Evaluation Kit for the MAX25320
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