Data Sheet Rev. 1
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Overview

Features and Benefits

  • 2.7V to 5.5V Input Voltage Range
  • 0.5V to 3.8V Output Voltage Range
    • Set by External Resistive Divider or Preprogrammed at Factory
    • Base EV Kit Configuration Set to 1.8V/3A Output
  • High-Frequency Switching (2.2MHz) Allows for an All-Ceramic Capacitor Design
  • Continuously Produces Output Current Up to 3A
  • Compact Solution Size
    • Externally Adjustable Output Implementation Fits Inside 65mm2 Area
    • Preprogrammed Output Implementation Fits Inside 55mm2 Area

Product Details

The MAX20074 evaluation kit (EV kit) demonstrates the performance and behavior of the MAX20074, a part in the MAX20015–MAX20018/MAX20073/MAX20074 family of pin-compatible, low-voltage, step-down switching regulator ICs.

The regulator delivers current up to 3A at an output voltage between 0.5V and 3.8V. The device operates from a 2.7V to 5.5V input supply voltage, making it ideal for post-regulation and point-of-load applications. The total error over load, line, and temperature ranges is 1.5%. The base switching frequency is 2.2MHz, which allows for all-ceramic capacitor application designs. The regulator can either be synchronized to an external clock or placed in a power-saving skip mode for increased efficiency at light loads.

The regulator provides an enable input and fault flag output. The output voltage can be set using an external resistor-divider and an internal 0.5V reference. Alternatively, it can be programmed at the factory for a specific output voltage, achieving 1.5% output accuracy without resorting to expensive 0.1% resistors. The soft-start time and fault hold time can also be factory programmed.

The regulators include overtemperature shutdown and overcurrent limiting. They are designed to continuously operate over the -40°C to +125°C ambient temperature range.

APPLICATIONS

  • Automotive
  • Point-of-Load

Markets and Technologies

Applicable Parts

Getting Started

REQUIRED EQUIPMENT

  • MAX20074 EV kit
  • 5V, 2A power supply
  • Digital multimeter
  • 0.6Ω, 20W power resistor or 3A electronic load

PROCEDURE

The EV kit is fully assembled and tested. Follow the steps below to verify board operation:

  1. Remove the jumper from JU1 (EN). Jumpers JU2 and JU3 can either be removed or populated.
  2. Connect the power supply to VSUP and GND and activate the supply.
  3. Use the multimeter to verify 5V input voltage and 0V output voltage.
  4. Replace the jumper on JU1 (EN).
  5. Use the multimeter to verify output voltage is 1.8V.
  6. Connect load (either resistive or electronic) to VOUT and GND.
  7. Use the multimeter to verify output voltage is still 1.8V

Documentation & Resources

  • View All (2)
  • Data Sheet (1)
  • Evaluation Design File (1)
    • Document Type