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36V HV Synchronous Boost Controller for Automotive Infotainment Applications

20µA IQ, Multiphase Capable with Superior Gate Drive Enabling Automotive Applications

Product Details

The MAX25201/MAX25202 are high-performance, current-mode PWM controllers with 1.5μA (typ) shutdown current for wide input voltage range boost converters. The 4.5V to 36V input operating voltage range makes these devices ideal in automotive applications, such as front-end preboost or general-purpose boost power supply, for the first boost stage in high-power LED lighting applications or to generate audio amplifier voltages. An internal low-dropout regulator with a 5V output voltage enables the MAX25201/MAX25202 to operate directly from an automotive battery input. The input operating range can be extended to as low as 1.8V after startup.

The MAX25201/MAX25202’s switching frequency operation (up to 2.2MHz) reduces output ripple, avoids AM band interference, and allows for the use of smaller external components. The switching frequency is resistor adjustable from 220kHz to 2.2MHz. Alternatively, the frequency can be syn­chronized to an external clock. A spread- spectrum option is available to improve system EMI performance. For high-current applications the dual-phase MAX25202 is available. The MAX25202 operates at a fixed 400kHz switching frequency and can be synchronized to an external clock.

The controllers feature a power-OK monitor and undervoltage lockout. Protection features include cycle-by-cycle current limit and thermal shutdown. The MAX25201/MAX25202 operate over the -40°C to +125°C automotive temperature range.

Key Features

  • Meets Stringent OEM Module Power Consumption and Performance Specifications
    • 20µA Quiescent Current in Skip Mode
    • ±1.5% FB Voltage Accuracy
    • Output Voltage Range: Fixed or Adjustable Between 3.5V and 60V
  • Enables Crank-Ready Designs
    • Operates Down to 1.8V After Startup
    • Wide Input Supply Range from 4.5V to 36V
  • EMI Reduction Features Reduce Interference with Sensitive Radio Bands Without Sacrificing Wide Input Voltage Range
    • Spread-Spectrum Option
    • Frequency-Synchronization Input
    • Resistor-Programmable Frequency Between 200kHz and 2.2MHz
  • Integration and Thermally Enhanced Packages Save Board Space and Cost
    • Current-Mode Controllers with Forced-Continuous and Skip Modes
    • Thermally Enhanced 16-Pin TQFN-EP Package
  • Protection Features Improve System Reliability
    • Supply Undervoltage Lockout
    • Overtemperature and Short-Circuit Protecti​on
  • Applications/Uses

    • Cluster Systems
    • E-call
    • Infotainment Systems
    Parametric specs for Step-Up Switching Regulators
    VIN (V) (min) 2
    VIN (V) (max) 42
    VOUT1 (V) (min) 3.3
    VOUT1 (V) (max) 65
    Switch Type External
    Preset VOUT (V) 5
    12
    15
    Output Adjust. Method Resistor
    Power Good Signal Yes
    Synchronous Switching? Yes
    ICC (mA) (typ) 0.02
    Shutdown Mode Supply Current (µA) (typ) 3.5
    Shutdown Mode Supply Current (µA) (max) 10
    # DC-DC Outputs 1
    Switching Frequency (kHz) 210
    250
    300
    350
    400
    480
    500
    600
    625
    640
    1000
    1200
    1400
    2000
    2100
    2200
    Design Tools EE-Sim
    Package/Pins TQFN-CU/16
    Budgetary
    Price (See Notes)
    $2.40 @1k
    View More

    Simplified Block Diagram

    MAX25201, MAX25202: Simplified Block Diagram MAX25201, MAX25202: Simplified Block Diagram Zoom icon

    Technical Docs

    Design & Development

    Click any title below to view the detail page where available.

    Description

    The MAX25201 evaluation kit (EV kit) is a fully assembled and tested application circuit that simplifies the evaluation of the MAX25201 400kHz, 36V boost controller. All installed components are rated for the automotive temperature range. Various test points and jumpers are included for evaluation.

    The standard EV kit comes with the installed MAX25201 (24V, 400kHz) and can also be used to evaluate other MAX25201 variants with minimal component changes shown in the MAX25201 EV Kit Bill of Materials.

    View Details

    Features

    • 4.5V to 42V Input Supply Range
    • Input Voltage Range Extended down to 2V after Initial Startup
    • Boost Output Voltages Adjustable Between 4.5V and 60V via External Resistors
    • Boost Fixed Output Voltage Available with Minor Component Changes
    • ±2% Output Voltage Accuracy
    • Frequency-Synchronization Input
    • Enable Input
    • Voltage-Monitoring PGOOD Output
    • Jumpers and Test Points on Key Nodes for Simplified Evaluation
    • Proven PCB Layout
    • Fully Assembled and Tested

    Description

    The MAX25202 evaluation kit (EV kit) is a fully assembled and tested application circuit that simplifies the evaluation of the MAX25202 400kHz, 36V boost controller. All installed components are rated for the automotive temperature range. Various test points and jumpers are included for evaluation.

    The standard EV kit comes with the installed MAX25202 (24V, 400kHz) and can also be used to evaluate other MAX25202 variants with minimal component changes shown in the MAX25202 EV Kit Bill of Materials.

    View Details

    Features

    • 4.5V to 36V Input Supply Range
    • Input Voltage Range Extended Down to 2V after Initial Startup
    • Boost Output Voltages Adjustable between 4.5V and 60V via External Resistors
    • Boost Fixed Output Voltage Available with Minor Component Changes
    • ±2% Output Voltage Accuracy
    • Frequency-Synchronization Input
    • Enable Input
    • Voltage-Monitoring PGOOD Output
    • Jumpers and Test Points on Key Nodes for Simplified Evaluation
    • Proven PCB Layout
    • Fully Assembled and Tested

    /en/design/design-tools/ee-sim.html?

    Tools & Models

    EE-Sim: Design & Simulate MAX25202

    Create Design

    Support & Training

    Search our knowledge base for answers to your technical questions.

    Filtered Search

    Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal

    Parameters

    Parametric specs for Step-Up Switching Regulators
    VIN (V) (min) 2
    VIN (V) (max) 42
    VOUT1 (V) (min) 3.3
    VOUT1 (V) (max) 65
    Switch Type External
    Preset VOUT (V) 5
    12
    15
    Output Adjust. Method Resistor
    Power Good Signal Yes
    Synchronous Switching? Yes
    ICC (mA) (typ) 0.02
    Shutdown Mode Supply Current (µA) (typ) 3.5
    Shutdown Mode Supply Current (µA) (max) 10
    # DC-DC Outputs 1
    Switching Frequency (kHz) 210
    250
    300
    350
    400
    480
    500
    600
    625
    640
    1000
    1200
    1400
    2000
    2100
    2200
    Design Tools EE-Sim
    Package/Pins TQFN-CU/16
    Budgetary
    Price (See Notes)
    $2.40 @1k

    Key Features

  • Meets Stringent OEM Module Power Consumption and Performance Specifications
    • 20µA Quiescent Current in Skip Mode
    • ±1.5% FB Voltage Accuracy
    • Output Voltage Range: Fixed or Adjustable Between 3.5V and 60V
  • Enables Crank-Ready Designs
    • Operates Down to 1.8V After Startup
    • Wide Input Supply Range from 4.5V to 36V
  • EMI Reduction Features Reduce Interference with Sensitive Radio Bands Without Sacrificing Wide Input Voltage Range
    • Spread-Spectrum Option
    • Frequency-Synchronization Input
    • Resistor-Programmable Frequency Between 200kHz and 2.2MHz
  • Integration and Thermally Enhanced Packages Save Board Space and Cost
    • Current-Mode Controllers with Forced-Continuous and Skip Modes
    • Thermally Enhanced 16-Pin TQFN-EP Package
  • Protection Features Improve System Reliability
    • Supply Undervoltage Lockout
    • Overtemperature and Short-Circuit Protecti​on
  • Applications/Uses

    • Cluster Systems
    • E-call
    • Infotainment Systems

    Description

    The MAX25201/MAX25202 are high-performance, current-mode PWM controllers with 1.5μA (typ) shutdown current for wide input voltage range boost converters. The 4.5V to 36V input operating voltage range makes these devices ideal in automotive applications, such as front-end preboost or general-purpose boost power supply, for the first boost stage in high-power LED lighting applications or to generate audio amplifier voltages. An internal low-dropout regulator with a 5V output voltage enables the MAX25201/MAX25202 to operate directly from an automotive battery input. The input operating range can be extended to as low as 1.8V after startup.

    The MAX25201/MAX25202’s switching frequency operation (up to 2.2MHz) reduces output ripple, avoids AM band interference, and allows for the use of smaller external components. The switching frequency is resistor adjustable from 220kHz to 2.2MHz. Alternatively, the frequency can be syn­chronized to an external clock. A spread- spectrum option is available to improve system EMI performance. For high-current applications the dual-phase MAX25202 is available. The MAX25202 operates at a fixed 400kHz switching frequency and can be synchronized to an external clock.

    The controllers feature a power-OK monitor and undervoltage lockout. Protection features include cycle-by-cycle current limit and thermal shutdown. The MAX25201/MAX25202 operate over the -40°C to +125°C automotive temperature range.

    Simplified Block Diagram

    MAX25201, MAX25202: Simplified Block Diagram MAX25201, MAX25202: Simplified Block Diagram Zoom icon

    Technical Docs

    Support & Training

    Search our knowledge base for answers to your technical questions.

    Filtered Search

    Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal