Power Management Solution

Wearable Power Management for Single-Cell Zinc Air, Silver Oxide, and Alkaline Battery Architectures


The MAX20310 is a compact power management solution for space-constrained, battery-powered applications where size and efficiency are critical. The device combines two buck-boosted outputs with two LDOs and other system power management features like a push-button monitor and sequencing controller.

The device includes a dual-output, programmable, micro-IQ high-efficiency switching converter. The MAX20310 operates with battery voltages down to 0.7V for use with Zinc Air or Alkaline batteries. The architecture allows for output voltages above or below the battery voltage.

Additionally, the MAX20310 has two programmable low-dropout (LDO) linear regulators. The linear regulators can also operate as power switches that can disconnect the quiescent load of system peripherals.

The MAX20310 includes a programmable power controller that allows the device to be configured for use in applications that require a true off state or for always-on applications. This controller provides a delayed reset signal, voltage sequencing, and customized button timing for on/off control and recovery hard reset.

The device also features a multiplexer for monitoring the power inputs and outputs of each function. The MAX20310 is available in a 16-bump 0.4mm pitch 1.63mm x 1.63mm wafer-level package (WLP) and operates over the -40°C to +85°C extended temperature range.
MAX20310: Typical Application Circuit MAX20310: Typical Application Circuit Enlarge+

Key Features

  • Extend System Battery Use Time
    • Single Inductor, Multiple Output Micro-IQ Buck-Boost Regulator
      • Battery Input Voltage from 0.7V to 2.0V
      • Output Voltage Programmable From 0.9V to 4.05V
      • 250mW Maximum Total Input Power
      • 1μA Quiescent Current
      • 84% Efficiency for 1.8V, 10mA Output
      • Input Current Limited
    • Dual Micro-IQ 50mA LDO
      • Inputs Supplied by Dual Buck-Boost Outputs
      • Output Programmable from 0.5V to 3.65V
      • 0.5μA Quiescent Current
      • Configurable as Load Switch
  • Extend Product Shelf-Life
    • Battery Seal Mode
      • 10nA Battery Current (typ)
  • Minimize Board Area
    • 1.63mm x 1.63mm WLP
  • Easy-to-Implement System Control
    • Voltage Monitor Multiplexer
      • 1% Accurate Battery Inverter (±10mV at 1.0V)
    • Power Button Monitor
      • Buffered Output
    • Power Sequencing
    • Reset Output
    • I2C Control Interface


  • Portable Medical Devices
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Part Number Primary Topology Monitor/Control Features DC-DC/Power Features Interface Type VIN
Oper. Freq.
min max min max
MAX20310 NEW! Step-Up/Down
Reset Output
Serial Interface
Current Limit
Fixed Freq./PWM
Internal Switch
Single Inductor Multiple Output
Soft Start
Sync. Rectifier
I2C 0.7 2 0.9 4.05 0.6 0.6 2000
See All Multifunction PMICs (69)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

MAX20310EVKIT: Evaluation Kit for the MAX20310

Quality and Environmental Data

Request Reliability Report for: MAX20310 
Lead-Free Package Tin (Sn) Whisker Reports

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