MAX1524

Obsolete

Simple SOT23 Boost Controllers

Data Sheet (Rev. 1)
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Part Details

  • 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
MAX1524
Simple SOT23 Boost Controllers
MAX1522, MAX1523, MAX1524: Typical Operating Circuit
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Documentation

Data Sheet 1

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Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

  • MAX1524
LTspice

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.

Evaluation Kits

MAX1523EVKIT

Evaluation Kit for the MAX1522, MAX1523, MAX1524

Buy Now View Details

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

Product Details

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

MAX1524EVKIT

Evaluation Kit for the MAX1522, MAX1523, MAX1524

Buy Now View Details

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

Product Details

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

Buy Now View Details

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

Product Details

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
MAX1524EVKIT
Evaluation Kit for the MAX1522, MAX1523, MAX1524
MAX1522EVKIT
Evaluation Kit for the MAX1522, MAX1523, MAX1524

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