I wanted to take a minute and share a few really cool new power devices I've come across lately that I think are definitely worth your consideration on your next designs. These are all module based products, which is not to say I don't advocate for discrete designs, but I continue to see new and innovative modules that ease the design process and cost deltas between module and discrete continue to shrink. Here are 3 devices I'd recommend taking a look at for your next designs.
TDK uPOL modules
These modules from TDK come in a remarkably small 3.3mm x 3.3mm package. Despite their small size, they still support a Vin from 4.5V up to 16V and can provide up to 6A at 0.6V to 2.5V. That is a pretty remarkable power density. They come with preset output voltages from the factory, however these can be tweaked using a feedback resistor network and I2C programming. There are several in the family, start with the FS1406 base part number to take a look at these devices. They are available here in multiple output voltage options, the linked device is 1.8V for reference -
Another cool device I've been looking at recently comes from Monolithic Power - MPS. The device is the MPM54304, it is a 4 channel PMIC module.
This device also comes in a very small form factor while providing 4 outputs. It also has a very handy ability to provide 4 outputs at 3A, 3A, 2A and 2A, or allow you to parallel channels to provide a single higher current rail. For example if you need a 6A core supply and a couple of 2A supplies you can parallel the 3A channels to provide core power while operating the other two 2A channels independently. That is a very "neat trick" and gives this module a lot of flexibility. The outputs can be set through I2C or preset using MTP programming (max 3 times). Again this device provides 4 outputs with integrated switches and inductors, making the design and layout very simple. -
The last device I wanted to highlight was the Murata UltraBK series. Also a power module, these devices are a little larger but buy you very low EMI radiation (and conduction) while also giving you the option of adding telemetry over the I2C interface. I think this part would be a good fit for the digital designer who needs a very low noise power system but lacks the comfort level of designing a discrete solution.
The telemetry version of this module is available here -
Hopefully you find this info useful. These may not be a good fit for everybody, but I thought they each presented something useful and unique that made them worth sharing.