Dynamic Voltage Scaling Power Solution for MSP430 Devices With Single-Channel LDO Reference Design
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Key Document


This reference design enables power savings for MSP430 FRAM devices or other systems that use a power-on hysteresis. TIDA-01172 uses an adjustable LDO and an RC-time delay to switch from a higher start-up voltage to the final low-power operating voltage.

  • Low power dissipation by operating at the lowest voltage of 1.8 V instead of required start-up voltage of 2 V
  • No additional active components required
  • Ripple-free and low-noise solution (no switching regulators and only one LDO)
  • Available as a booster pack but can be reduced to a small-solution size

See the Important Notice and Disclaimer covering reference designs and other TI resources.


Schematic/Block Diagram

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Design Guide

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Design Files

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TI Devices (2)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
LP3982  300-mA, high-accuracy, low-dropout voltage regulator with power good & enable  Power management  Sample & Buy Not Available
MSP430FR5969  16 MHz MCU with 64KB FRAM, 2KB SRAM, AES, 12-bit ADC, comparator, DMA, UART/SPI/I2C, timer  Microcontrollers (MCUs)  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
LP3982 Download Download
Download Download
MSP430FR5969 Download Download

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Technical documentation

See the Important Notice and Disclaimer covering reference designs and other TI resources.

User guide (1)
Title Type Size (KB) Date
PDF 620 15 Jun 2016
Design files (5)
Title Type Size (KB) Date
ZIP 345 03 Aug 2016
PDF 72 03 Aug 2016
PDF 513 03 Aug 2016
PDF 60 03 Aug 2016
PDF 197 03 Aug 2016
Related Tools & Software

Hardware development (1)

Name Part Number Tool Type
MSP430FR5969 LaunchPad development kit  MSP-EXP430FR5969  Development kit 

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