Before I write how and why I started using TI ICs for designing power supplies let's take a look at my past projects.

I often design analog circuits and microcontroller based projects. Since, I need portability in most of my projects I used to use the cheap 9V batteries.

Initially, they worked good in the testing phase and I didn't have any knowledge about capacity of the battery or I didn't care about the capacity.

But until one day when I designed an analog line following robot with LM358 Dual opamp ICs. The 9V battery used to last only for about 10-15mins,

and it couldn't supply the required amount of power. Since, the robot used the opamps as comparators the voltage drop used to de calibrate the

light sensors as the threshold voltage of comparators kept on dropping.


That's when I started looking for some nice power supplies. I came across some cheap buck/boost converters on eBay. But being an electronics engineer,

I decided to build one on my own. I had a 3.7V Li-ion battery but it was useless for 5V microcontrollers. I decided to make a boost converter.


The TI Webench design tool helped a lot in choosing the proper boost converter IC and external components. LM2765 is the part I used for the power supply.

Since then I have been using the same battery and the boost converter to power up my projects. It's been 2 years now.

I have also made many DC-DC step down power supplies using TI's buck converters.


TI has helped me learn about power supplies and the datasheets and applications circuits on the website help a lot too. Especially the TI Webench tool let's you input the

parameters and displays a list of ICs as per your requirements. It simulates the result of the selected product and displays a lot of important details like the BOM, efficiency,

steady state parameters, etc.


I believe the book will help me explore more such power supply designs. It will help me to design a MPPT based solar battery charger.