Energy Storage Circuit for Uninterrupted Power Supply and Extending Alkaline Battery Lifetime


Design files


An alkaline battery and a boost converter are usually used to power the load system which requires high voltage, such as the motor driver in insulin pump. In this reference design, a lithium polymer battery is added to the output of the boost converter to absorb the pulse load current and extend the alkaline battery lifetime. The designed circuit also benefits uninterrupted power supply when the alkaline battery is out of charge.

  • Extend the alkaline battery lifetime
  • Uninterrupted power supply for important load
  • Support low output current capability boost converter
  • This circuit is tested on an evaluation board
Output voltage options PMP9771.1
Vin (Min) (V) .7
Vin (Max) (V) 3.2
Vout (Nom) (V) 4
Iout (Max) (A) .15
Output Power (W) .6
Isolated/Non-Isolated Non-Isolated
Input Type DC
Topology Boost- Synchronous
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDU697.PDF (784 K)

Test results for the reference design, including efficiency graphs, test prerequisites and more


Detailed schematic diagram for design layout and components


Complete listing of design components, reference designators, and manufacturers/part numbers

TIDRCA4.ZIP (4929 K)

Files used for 3D models or 2D drawings of IC components

TIDC831.ZIP (675 K)

Design file that contains information on physical board layer of design PCB


PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

AC/DC & DC/DC converters (integrated FET)

TPS612200.7-VIN, adjustable output voltage boost converter with 5.5-μA quiescent current

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
Test report Energy Storage Circuit for Uninterrupted Power Supply Dec. 15, 2014

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