SYSTEM BOARD 7299

MAXREFDES1261: Asset Tracker Power Management Platform


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The MAXREFDES01261 is a reference design for the asset tracker application based on the Maxim® solution. This reference design is a power management platform for the asset tracker, which includes the MAX32660, MAX77840, MAX77640, and MAX77827. This design demonstrates a small-size, low-power, highly effective, highly accurate, and flexible power management system.

Key Features

  • Integrated solution
  • Small size
  • Low power
  • High accuracy
  • Flexible power output
MAXREFDES1261 Board Enlarge+

Designed, Built, Tested

This document describes the hardware in Figure 1. It provides a detailed, systematic technical guide to design a small-size, low-power, high effective, and high-accuracy asset tracker power management platform. The design was built and tested. The details follow later in this document.

Schematic

PCB Layout

Test Results


 
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MAX77827
5.5V Input, 1.8A/3.1A Switch Buck-Boost Converter with 6μA IQ

  • 1.8V to 5.5V Input Voltage Range
  • 2.3V to 5.3V Single Resistor Adjustable Output Voltage
  • 1.6A Maximum Output Current (3.1A ILIM Option, Buck Mode)

MAX77640
Ultra-Low Power PMIC with 3-Output SIMO, 150mA LDO, and Power Sequencer

  • Compact, High-Efficiency Power Solution
  • 3-Output SIMO Extends Battery Life
  • Low Quiescent Current

MAX32660
Tiny, Ultra-Low-Power Arm Cortex-M4 Processor with FPU-Based Microcontroller (MCU) with 256KB Flash and 96KB SRAM

  • High-Efficiency Microcontroller for Wearable Devices
  • Power Management Maximizes Uptime for Battery Applications
  • Optimal Peripheral Mix Provides Platform Scalability