MAX1522
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MAX1522

Simple SOT23 Boost Controllers

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LTspice MAX1522 - Step-Up (Boost) Regulators Download 2 KB
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Features
  • Simple, Flexible Application Circuit
  • 2-Cell NiMH or Alkaline Operation (MAX1524)
  • Low Quiescent Current (25µA typ)
  • Output Fault Protection and Soft-Start
  • High Efficiency Over 1000:1 IOUT Range
  • Pin-Selectable Maximum Duty Factor
  • Micropower Shutdown Mode
  • Small 6-Pin SOT23 Package
  • No Current-Sense Resistor
Additional Details
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The MAX1522/MAX1523/MAX1524 are simple, compact boost controllers designed for a wide range of DC-DC conversion topologies, including step-up, SEPIC, and flyback applications. They are for applications where extremely low cost and small size are top priorities. These devices are designed specifically to provide a simple application circuit and minimize the size and number of external components, making them ideal for PDAs, digital cameras, and other low-cost consumer electronics applications.

These devices use a unique fixed on-time, minimum off-time architecture, which provides excellent efficiency over a wide-range of input/output voltage combinations and load currents. The fixed on-time is pin selectable to either 0.5µs (50% max duty cycle) or 3µs (85% max duty cycle), permitting optimization of external component size and ease of design for a wide range of output voltages.

The MAX1522/MAX1523 operate from a +2.5V to +5.5V input voltage range and are capable of generating a wide range of outputs. The MAX1524 is intended for bootstrapped operation, permitting startup with lower input voltage. All devices have internal soft-start and short-circuit protection to prevent excessive switching current during startup and under output fault conditions. The MAX1522/MAX1524 have a latched fault mode, which shuts down the controller when a short-circuit event occurs, whereas the MAX1523 reenters soft-start mode during output fault conditions. The MAX1522/MAX1523/MAX1524 are available in a space-saving 6-pin SOT23 package.

Applications

  • Industrial +24V and +28V Power Supplies
  • LCD Bias Supplies
  • Low-Cost Battery-Powered Applications
  • Low-Cost, High-Current, or High-Voltage Boost Conversion
  • Low-Cost, Multi-Output Flyback Converters
  • SEPIC Converters
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file View Data Sheet (Rev.1)
Documentation View All Documentation
LTspice MAX1522 - Step-Up (Boost) Regulators Download 2 KB
Part Models 2
1ku List Price Starting From $1.27
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MAX1522

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Data Sheet

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UPDATED 08/17/2010
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MAX1522-MAX1524: Simple SOT23 Boost Controllers Data Sheet (Rev.1)

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UPDATED 01/01/1900
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2451: 简单的SOT23封装boost控制器 Data Sheet

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UPDATED 12/09/2010
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MAX1522-MAX1524_jp: シンプルSOT23ブーストコントローラ Data Sheet (Rev.1)

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UPDATED 11/04/2010
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Single-Inductor Circuit Generates Bipolar Supply Voltages redirect icon

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UPDATED 12/23/2004
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Converter Boosts One-Cell Battery Voltage to 50V redirect icon

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Documentation

Documentation

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
MAX1522EUT+ Small-Outline Transistor Package external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
MAX1522EUT+T Small-Outline Transistor Package external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link

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Nov 1, 2021

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ASSEMBLY

MAX1522EUT+

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MAX1522EUT+T

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Feb 5, 2015

- 1370_CANCELLATION

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MAX1522EUT+T

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Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 3

MAX1524EVKIT

Evaluation Kit for the MAX1522, MAX1523, MAX1524

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MAX1524EVKIT

Evaluation Kit for the MAX1522, MAX1523, MAX1524

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Download

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MAX1524EVKIT
Evaluation Kit for the MAX1522, MAX1523, MAX1524

Features and Benefits

  • Input Voltage
    • +1.5V to +5.5V (Left Side, BOOTSTRAPPED)
    • +2.5V to +5.5V (Right Side, NON-BOOTSTRAPPED)
  • Output Voltage
    • +5V Output up to 1A (Left Side)
    • +12V Output up to 200mA (Right Side)
  • No Current-Sense Resistor
  • Fault-Detection
  • Soft-Start Limits Inrush Current
  • Selectable Maximum Duty Cycle (45% or 80%)
  • Adjustable Output Voltages
  • 1µA (max) Shutdown Current
  • Switching Frequency Up to 1MHz
  • Fully Assembled and Tested
Buy Now View Details

Product Detail

The MAX1522 evaluation kit (EV kit) is a fully assembled and tested surface-mount circuit board that contains two separate step-up switching controller circuits. The first circuit (left side) utilizes the MAX1524, is configured for +5V output, and can deliver up to 1A of current. The MAX1524 supply pin is bootstrapped to the output. The second circuit (right side) utilizes the MAX1522, is configured for +12V output, and can deliver up to 200mA of current with the input voltage as low as +2.7V.

The MAX1522 and MAX1524 feature soft-start and fault-detect. The EV kit allows the user to set the on-time of the N-channel MOSFETs to either 0.5µs or 3µs.

Applications

  • Industrial +24V and +28V Power Supplies
  • LCD Bias Supplies
  • Low-Cost Battery-Powered Applications
  • Low-Cost, High-Current, or High-Voltage Boost Conversion
  • Low-Cost, Multi-Output Flyback Converters
  • SEPIC Converters

MAX1522EVKIT

Evaluation Kit for the MAX1522, MAX1523, MAX1524

zoom

MAX1522EVKIT

Evaluation Kit for the MAX1522, MAX1523, MAX1524

download icon

Download

 print icon

Print
MAX1522EVKIT
Evaluation Kit for the MAX1522, MAX1523, MAX1524

Features and Benefits

  • Input Voltage
    • +1.5V to +5.5V (Left Side, BOOTSTRAPPED)
    • +2.5V to +5.5V (Right Side, NON-BOOTSTRAPPED)
  • Output Voltage
    • +5V Output up to 1A (Left Side)
    • +12V Output up to 200mA (Right Side)
  • No Current-Sense Resistor
  • Fault-Detection
  • Soft-Start Limits Inrush Current
  • Selectable Maximum Duty Cycle (45% or 80%)
  • Adjustable Output Voltages
  • 1µA (max) Shutdown Current
  • Switching Frequency Up to 1MHz
  • Fully Assembled and Tested
Buy Now View Details

Product Detail

The MAX1522 evaluation kit (EV kit) is a fully assembled and tested surface-mount circuit board that contains two separate step-up switching controller circuits. The first circuit (left side) utilizes the MAX1524, is configured for +5V output, and can deliver up to 1A of current. The MAX1524 supply pin is bootstrapped to the output. The second circuit (right side) utilizes the MAX1522, is configured for +12V output, and can deliver up to 200mA of current with the input voltage as low as +2.7V.

The MAX1522 and MAX1524 feature soft-start and fault-detect. The EV kit allows the user to set the on-time of the N-channel MOSFETs to either 0.5µs or 3µs.

Applications

  • Industrial +24V and +28V Power Supplies
  • LCD Bias Supplies
  • Low-Cost Battery-Powered Applications
  • Low-Cost, High-Current, or High-Voltage Boost Conversion
  • Low-Cost, Multi-Output Flyback Converters
  • SEPIC Converters

MAX1523EVKIT

Evaluation Kit for the MAX1522, MAX1523, MAX1524

zoom

MAX1523EVKIT

Evaluation Kit for the MAX1522, MAX1523, MAX1524

download icon

Download

 print icon

Print
MAX1523EVKIT
Evaluation Kit for the MAX1522, MAX1523, MAX1524

Features and Benefits

  • Input Voltage
    • +1.5V to +5.5V (Left Side, BOOTSTRAPPED)
    • +2.5V to +5.5V (Right Side, NON-BOOTSTRAPPED)
  • Output Voltage
    • +5V Output up to 1A (Left Side)
    • +12V Output up to 200mA (Right Side)
  • No Current-Sense Resistor
  • Fault-Detection
  • Soft-Start Limits Inrush Current
  • Selectable Maximum Duty Cycle (45% or 80%)
  • Adjustable Output Voltages
  • 1µA (max) Shutdown Current
  • Switching Frequency Up to 1MHz
  • Fully Assembled and Tested
Buy Now View Details

Product Detail

The MAX1522 evaluation kit (EV kit) is a fully assembled and tested surface-mount circuit board that contains two separate step-up switching controller circuits. The first circuit (left side) utilizes the MAX1524, is configured for +5V output, and can deliver up to 1A of current. The MAX1524 supply pin is bootstrapped to the output. The second circuit (right side) utilizes the MAX1522, is configured for +12V output, and can deliver up to 200mA of current with the input voltage as low as +2.7V.

The MAX1522 and MAX1524 feature soft-start and fault-detect. The EV kit allows the user to set the on-time of the N-channel MOSFETs to either 0.5µs or 3µs.

Applications

  • Industrial +24V and +28V Power Supplies
  • LCD Bias Supplies
  • Low-Cost Battery-Powered Applications
  • Low-Cost, High-Current, or High-Voltage Boost Conversion
  • Low-Cost, Multi-Output Flyback Converters
  • SEPIC Converters

Evaluation Kits3

MAX1524EVKIT

Evaluation Kit for the MAX1522, MAX1523, MAX1524

MAX1522EVKIT

Evaluation Kit for the MAX1522, MAX1523, MAX1524

MAX1523EVKIT

Evaluation Kit for the MAX1522, MAX1523, MAX1524
Tools & Simulations

Tools & Simulations 1

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

To launch ready-to-run LTspice demonstration circuits for this part:

Step 1: Download and install LTspice on your computer.

Step 2: Click on the link in the section below to download a demonstration circuit.

Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.

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MAX1522 - Step-Up (Boost) Regulators Download

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