Linear Regulator Power Solution Reference Design for Reducing MSP430G2xx3 Power Dissipation


Design files


This linear regulator power solution provides power supply to MSP430 microcontroller. By implementing two linear regulator in parallell but work seperately, this power solution can reduce system power dissipation. Low quiescent current LP5900-3.3 and LP5900-1.8 are fit for this application.

  • Low power dissipation solution
  • Small size solution
  • Cost optimized solution
  • Ripple free and low noise solution
  • TIDA-00691 provides design guide and design files of the power solution
Output voltage options TIDA-00691.1
Vin (Min) (V) 3
Vin (Max) (V) 4.2
Vout (Nom) (V) 3.3
Iout (Max) (A) .15
Output Power (W) .495
Isolated/Non-Isolated Non-Isolated
Input Type DC
Topology Linear Regulator
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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.

TIDUB23.PDF (3175 K)

Reference design overview and verified performance test data


Detailed schematic diagram for design layout and components


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


Detailed overview of design layout for component placement


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


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.

Linear & low-dropout (LDO) regulators

LP5900150-mA, low-noise, low-IQ, low-dropout voltage regulator with enable

Data sheet: PDF | HTML
MSP430 microcontrollers

MSP430G255316 MHz MCU with 16KB Flash, 512B SRAM, comparator, UART/SPI/I2C, timer

Data sheet: PDF

Technical documentation

= Top documentation selected by TI
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Type Title Date
* Design guide Regulator Power Solution for Reducing MSP430G2xx3 Power Dissipation Design Guide Nov. 12, 2015
Technical article Can an LDO produce better-quality images in small-sized camera applications? PDF | HTML Jul. 13, 2016
Technical article How LDOs contribute to power efficiency PDF | HTML May 13, 2016
More literature MCU/Analog Series: Driving Low Power Even Lower Part 2 Dec. 11, 2015
More literature MCU/Analog Series: Driving Low Power Even Lower Part 1 Dec. 11, 2015

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