Split Rail Linear Power Supply

The input supply voltage range is suitable for use with lithium ion batteries or from a fixed 3 3 v supply.

Split rail linear power supply.

Splitting a rail using the voltage reference will often mean compromising a bit on the symmetry of the split for example if a 3v3 rail is to be split then the closest would be to use the 1 8v output reference which gives a 1 8 1 5v asymmetrical supply. Open in new find other lcd oled display power drivers description. This results in the load current of both regulators to be equal in magnitude. This document outlines a step by stepmethod for designing the split rail power supply.

I build up a simple low voltage supply to setup the framework for the l. Figure 2 is a plot of the input current versus the output current for the circuit in figure 1. The split rail power supply uses a wide input voltage step downregulator as an inverting power supply to create the negative supply rail. For step by step details see the application report creating a split rail power supply with a wide input voltage buck regulator charge pumps are a popular and easy way of inverting positive rails.

White vinyl 3 rail diamond fence panel with 3 rails post and cap. The tps65133 is designed to supply any system requiring 5 0 v supply rails. The positive supply rail is created from a standard off the shelfcoupled inductor from coilcraft. I thought it would be interesting to do a theory video on linear power supply design.

Only the ref3318 is available with a 1 8v output so it could be used. The fly buck method is a more complex technique.