MAX25208
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MAX25208

Versatile Automotive 60V/70V 2.2MHz Buck Controller with 7µA IQ and Optional Bypass Mode

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Industry's Lowest 60V/70V IQ Automotive Synchronous Step-Down Controller Uses Only 7µA of Quiescent Current

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1ku List Price Starting From $2.93
Features
  • Meets Stringent Automotive OEM Module Power Consumption and Performance Specifications
    • 7µA Quiescent Current in Skip Mode
    • Fixed 5.0V/3.3V or Adjustable 0.7V to 20V Output
    • ±1.5% Output-Voltage Accuracy for 5V Fixed Setting
  • Enables Crank-Ready Designs
    • Wide Input Supply Range from 3.5V to 60V/70V
  • EMI Reduction Features Reduce Interference with Sensitive Radio Bands without Sacrificing Wide Input Voltage Range
    • 50ns (typ) Minimum On-Time Allows Skip-Free Operation for 3.3V Output from Car Battery at 2.2MHz
    • Spread-Spectrum Option
    • Frequency-Synchronization Input
    • Resistor-Programmable Frequency Between 220kHz and 2.2MHz
  • Integration and Thermally Enhanced Packages Save Board Space and Cost
    • 2.2MHz Step-Down Controller
    • 180° Out-of-Phase SYNCOUT Output for Synchronization
    • Current-Mode Controller with Forced-Continuous and Skip Modes
    • Thermally Enhanced 20-Pin Side-Wettable (SW) 4mm x 4mm TQFN-EP Package
  • Protection Features Improve System Reliability
    • Supply Undervoltage Lockout
    • Output Overvoltage and Undervoltage Monitoring
    • Overtemperature and Short-Circuit Protection
    • -40°C to +125°C Grade 1 Automotive Temperature Range
Additional Details
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The MAX25206/MAX25207/MAX25208 are automotive 2.2MHz synchronous step-down controllers with 7µA IQ. These devices operate with an input voltage supply from 3.5V to 60V (MAX25206/MAX25207) and 70V (MAX25208). They can operate in dropout condition by running at 99% (typ) duty cycle. These controllers are intended for applications with mid- to high-power requirements that operate at a wide input voltage range such as during automotive cold-crank or engine stop-start conditions. The MAX25207 has an optional bypass mode which allows 100% high-side switch on until step-down function is needed during automotive transients.

The MAX25206/MAX25207/MAX25208 step-down controllers operate at up to 2.2MHz frequency to allow small external components, reduced output ripple, and to guarantee no AM band interference. The switching frequency is resistor adjustable (220kHz to 2200kHz). SYNC input programmability enables three frequency modes for optimized performance: forced fixed-frequency operation (FPWM), skip mode with ultra-low quiescent current, and synchronization to an external clock. The IC also provides SYNCOUT output to enable two controllers to operate in parallel. The MAX25206/MAX25207/MAX25208 have a pin selectable spread-spectrum option for frequency modulation to minimize EMI.

The MAX25206/MAX25207/MAX25208 feature a PGOOD monitor and undervoltage lockout. Protection features include cycle-by-cycle current limit and thermal shutdown. These controllers are specified for operation over the -40°C to +125°C automotive temperature range.

Applications

  • 24V Truck systems, Infotainment Systems, 48V systems
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MAX25208

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UPDATED 02/04/2022
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MAX25206-MAX25208: Versatile Automotive 60V/70V 2.2MHz Buck Controller with 7µA IQ and Optional Bypass Mode Data Sheet (Rev.2)

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2022-10-04

09:52

Introduction to the MAX25206 MAX25207 MAX25208 Versatile Automotive 60V/70V 2.2MHz Buck Controller with 7µA IQ and Optional Bypass Mode

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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
MAX25208ATPA/VY+ 20-LFCSP_SS-4X4X0.75 external-link
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MAX25208ATPA/VY+T 20-LFCSP_SS-4X4X0.75 external-link
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Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 2

MAX25207EVKIT

Evaluation Kit for the MAX25207

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MAX25207EVKIT

Evaluation Kit for the MAX25207

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MAX25207EVKIT
Evaluation Kit for the MAX25207

Features and Benefits

  • +3.5V to +60V Input Supply Range
  • Output Voltage: 14V in Buck Mode (Follows Input in Bypass Mode)
  • Output Current: 7A (Configurable to 20A)
  • Switching Frequency: 440kHz
  • Forced-PWM Mode of Operation
  • Spread-Spectrum Control
  • Enable Input
  • Voltage Monitoring PGOOD Output
  • Proven PCB Layout
  • Fully Assembled and Tested
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Product Detail

The MAX25207 evaluation kit (EV kit) provides a proven design to evaluate the MAX25207 automotive 2.2MHz synchronous step-down controllers with bypass mode. The default EV kit delivers 7A with input voltages up to 60V, but it can be configured to deliver up to 20A. The output voltage quality can be monitored by observing the PGOOD signal.

Applications

  • 24V Truck systems, Infotainment Systems, 48V systems

Resources

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MAX25207EVKIT ODB Files - Design Files Download

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MAX25206EVKIT

Evaluation Kit for the MAX25206/MAX25208

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MAX25206EVKIT

Evaluation Kit for the MAX25206/MAX25208

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MAX25206EVKIT
Evaluation Kit for the MAX25206/MAX25208

Features and Benefits

  • +3.5V to +60V (MAX25206) and +70V (MAX25208) Input Supply Range
  • Output Voltage: 5V or 3.3V Fixed or Adjustable between 0.7V to 20V
  • Delivers up to 20A Output Current
  • Frequency Synchronization Input
  • Frequency Synchronization Output
  • Spread-Spectrum Control
  • Enable Input
  • Voltage-Monitoring PGOOD Output
  • Proven PCB Layout
  • Fully Assembled and Tested
Buy Now View Details

Product Detail

The MAX25206 evaluation kit (EV kit) provides a proven design to evaluate the MAX25206/8 automotive 2.2MHz synchronous step-down controllers with 7µA IQ. The EV kit PCB comes with a MAX25206 IC installed, as well as various test points and jumpers for evaluation. The EV kit output voltage is fixed and is easily configured with minimum component changes. The default EV kit is designed to deliver up to 7A with input voltages from +3.5V to +60V (MAX25206) and +70V (MAX25208), but can be configured to deliver up to 20A. Output voltage quality can be monitored by observing the PGOOD signal.

Applications

  • 24V Truck systems, Infotainment Systems, 48V systems

Resources

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ZIP

MAX25206EVKIT ODB Files - Design Files Download

895.87 K

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Evaluation Kits2

MAX25207EVKIT

Evaluation Kit for the MAX25207

MAX25206EVKIT

Evaluation Kit for the MAX25206/MAX25208
Tools & Simulations

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