MAX25263
Automotive, 65V, 2A/3A Mini Buck Converter
Industry's first 70V automotive Buck with Low IQ and optimized EMI Performance
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Overview
Features and Benefits
- Meets Stringent Original Equipment Manufacturer (OEM) Module Power Consumption and Performance Specifications
- 2A/3A Output-Current Capability
- 3.5µA Supply Current in Standby Mode
- Enables Double Battery Operation
- Wide Input Supply Range from 3.5V to 65V
- Programmable 1V to 20V Output Voltage
- Fixed 5V/3.3V/12V Options Available
- EMI Reduction Features Reduce Interference with Sensitive Radio Bands without Sacrificing Wide Input Voltage Range
- 20ns (typ) Minimum On-Time Guarantees Skip-Free Operation for 3.3V Output at 2.1MHz and 24VIN
- Spread-Spectrum Option
- Phase-Locked Loop (PLL) Frequency Synchronization
- Protection Features Improve System Reliability
- PGOOD Output and High-Voltage EN Input Simplify Power Sequencing
- Undervoltage Lockout
- Overtemperature and Short-Circuit Protection
- AEC-Q100 Qualified
Product Details
The MAX25262/MAX25263 are small, synchronous buck converters with integrated high-side and low-side switches. The device is designed to deliver up to 2A/3A with 3.5V to 65V input voltages while using only 3.5µA quiescent current at no load. The IC comes with a small 20ns minimum on-time capability, which enables the large step-down conversions in a single stage without skipping cycles. A max duty cycle of 98% and low high side FET ON resistance enable a low dropout operation for low input voltage applications.
The voltage quality can be monitored by observing the PGOOD signal. The device offers two fixed 5V and 3.3V output voltages. In addition, the device can be configured for 1V to 20V output voltages using an external resistor-divider. The frequency is internally fixed at 2.1MHz, which allows for small external components, reduced output ripple, and guarantees no AM interference. A 400kHz option is also offered to provide the minimum switching losses and maximum efficiency. For high light load efficiency, the IC enters skip mode at light loads when FSYNC is pulled low. A pin selectable forced pulse-width modulation (PWM) mode is also available for the EMI critical applications. The IC comes in a symmetrical flip-chip package that offers superior EMI performance. Further, the pin selectable spread spectrum helps to enhance the EMI performance.
Applications
- Automotive Instrument Cluster
- Distributed DC Power Systems
- Double battery automotive systems
- Navigation and Radio Head Units
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (2)
Documentation & Resources
Tools & Simulations
EE-Sim® Power Tools
The EE-Sim DC-DC Converter Tool uses your requirements to quickly create a complete power design including a schematic, BOM with commercially available parts, and time and frequency domain simulations. Your customized schematic can be downloaded for further analysis in the standalone EE-Sim OASIS Simulator, featuring SIMPLIS and SIMetrix SPICE engines.
Product Recommendations
MAX25263 Companion Parts
Design 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 |
|---|---|---|---|---|
| MAX25263AFOC/VY+ | Material Declaration | Reliability Data | 17-LFCSP_SS-3.5X3.5X0.75 | |
| MAX25263AFOC/VY+T | Material Declaration | Reliability Data | 17-LFCSP_SS-3.5X3.5X0.75 | |
| Wafer Fabrication Data |
Support & Discussions
Sample & Buy
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Buy Now Pricing
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List Pricing
(*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
Lead Times
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Sampling
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Evaluation Boards
Pricing displayed is based on 1-piece.
Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.
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.