MAX38886

PRODUCTION

2.5V to 5.0V, 0.5A/2.5A, Charge/Discharge Regulator for Supercapacitor Backup Applications

Continua™ Family of Backup Power Regulators Using Supercapacitor or Capacitor Bank

Data Sheet (Rev. 0)
Part Models
2
1ku List Price
Starting From $2.24
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Part Details

  • 2.5V to 5V System Output Voltage
  • Up to 4.5V Capacitor Voltage Range
  • Up to 2.5A Peak Inductor Discharge Current
  • Programmable Voltage and Current Thresholds
  • ±2% Threshold Accuracy
  • Up to 95% Efficiency, Charge or Discharge
  • 2.5μA Ready Quiescent Current
  • Small Solution Size
    • 3mm x 3mm x 0.75mm TDFN Package
MAX38886
2.5V to 5.0V, 0.5A/2.5A, Charge/Discharge Regulator for Supercapacitor Backup Applications
MAX38886:Typical Application Circuit
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Documentation

Data Sheet 1

Design Note 1

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Hardware Ecosystem

Parts Product Life Cycle Description
Boost Regulators & Controllers 1
MAX38888
PRODUCTION 2.5V–5.0V, 0.5A/2.5A Reversible Buck/Boost Regulator for Backup Power Applications
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Tools & Simulations

EE-Sim Power® Tools 1

The EE-Sim DC-DC Converter Tool uses your requirements to quickly create a complete power design including a schematic, BOM with commercially available parts, and time and frequency domain simulations. Your customized schematic can be downloaded for further analysis in the standalone EE-Sim OASIS Simulator, featuring SIMPLIS and SIMetrix SPICE engines.

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Evaluation Kits

MAX38886EVKIT

Evaluation Kit for the MAX38886

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Features and Benefits

  • 2.99V to 3.36V System Output Voltage Range
  • 0.5V to 2.71V Super Cap Voltage Range
  • 2.5A Peak Discharge Current
  • Resistor-Adjustable Voltage and Current Thresholds
  • Proven 2-Layer, 2oz Copper PCB Layout
  • Compact Solution Size
  • Fully Assembled and Tested

Product Details

The MAX38886 evaluation kit (EV kit) evaluates the MAX38886 IC. The MAX38886 is a super cap backup regulator designed to transfer power between a super cap and a system supply rail. When the main battery is present and above the minimum system supply voltage, the regulator charges the super cap at up to a 500mA rate. Once the super cap is charged, the circuit draws only 3µA of current while it maintains the super cap in its ready state. When the main battery is removed, the regulator prevents the system from dropping below the minimum operating voltage, discharging the super cap at up to a 2.5A peak inductor current. Multiple MAX38886 ICs can be connected in parallel for higher current applications. The MAX38886 is externally programmable for mini- mum and maximum super cap voltage, minimum system voltage, and maximum charge and discharge currents. The internal DC-DC converter requires only a 1µH inductor and a 22µF capacitor.

Applications

  • Handheld Industrial Equipment
  • Portable Computers
  • Portable Devices with a Removable Battery
MAX38886EVKIT
Evaluation Kit for the MAX38886

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