Advice for Powering a Project - Multiple Power Supplies

[CPARKTX]

In my project, I have a vehicle controlled by an Arduino Mega with attached GPS, sensors, LCD, etc.; I am powering this through the Arduino's main power input. I have DC motors connected to an Adafruit Motor Shield v2 and externally powered by a 6 x AA (9v) battery pack; and a servo that I am powering via a 4 x AA (6v) battery pack. The servo is only rated to 6v max and the motors seem to run much better at 9v than 6v, so I haven't been able to combine the DC motors and servos onto a single power supply.

Ultimately however three separate power supplies adds a lot of weight, bulk and complexity. Any suggestions on how to cut this down? Any easy tools to step down from 9v to 6v so I can run the servo & DC motors on a single 9v supply?

I'm open to any suggestions. Thanks!

[adafruit_support_bill]

We have a 5v UBEC that will power most servos efficiently: https://www.adafruit.com/products/1385
We also have 5v DC/DC "buck" converters: https://www.adafruit.com/product/1065

[CPARKTX]

We have a 5v UBEC that will power most servos efficiently: https://www.adafruit.com/products/1385
We also have 5v DC/DC "buck" converters: https://www.adafruit.com/product/1065

Bill -- Those look great, any chance you have one that outputs 6v? There is a big difference in servo speed when powered at 5v vs 6.

[adafruit_support_bill]

We do not. But there are probably other sources on-line. Good search terms to use are:
"UBEC"
"Buck Converter"
or
"DC/DC Converter"