LM3671 3.3V Buck Converter Breakout - 3.3V Output 600mA Max
VERTER 5V USB Buck-Boost - 500mA from 3V-5V / 1000ma from 5V-12V : Office Products - Amazon.com
Adafruit VERTER 5V USB Buck-Boost - 500mA from 3V- 5V / 1000ma from 5V-12V - Walmart.com
VERTER 5V USB Buck-Boost - 500mA from 3V-5V / 1000ma from 5V-12V [TPS63060] : ID 2190 : $9.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Adafruit VERTER 5V USB Buck-Boost - 500mA from 3V-5V / 1000ma from 5V-
Adafruit Verter 5V USB Buck-Boost, 500mA From 3V To 5V, 1A From 5V To 12V, 2190 | eBay
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Amazon.com : VERTER 5V USB Buck-Boost - 500mA from 3V-5V / 1000ma from 5V-12V : Office Products
Adafruit Industries TPS62827 3.3V Buck Converter Breakout - 3.3V Output 2 Amp Max - Micro Center
VERTER 5V USB Buck-Boost - 500mA from 3V-5V / 1000ma from 5V-12V [TPS63060] : ID 2190 : $9.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Adafruit Industries LM3671 3.3V Buck Converter Breakout - 3.3V Output 600mA Max - Micro Center
VERTER 5V USB Buck-Boost - 500mA from 3V-5V / 1000ma from 5V-12V : Office Products - Amazon.com