# Buck/Boost converter ## Description A buck boost converter that can be powered from a Li-Ion battery and output 3.3V @ 500mA. Powered by the TPS63051YFF and in the same package as a standard Adafruit buck converter Input Voltage range: 2.5V to 5.5V ## Project Details - **Owner:** ellie1 - **Created:** 9/8/2025 - **Last Updated:** 9/9/2025 - **Visibility:** Public ## Key Components ### J1 — [PAD WITH HOLE 4mmx1.5mm](https://www.flux.ai/adrian95/pad-with-hole-4mmx15mm~wdx.md) **Pins:** - P1 ### J2 — [Connector 01x04 0.100](https://www.flux.ai/vasy_skral/connector-01x04-0100~go.md) - Part Type: Connector **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### U1 — [TPS63051YFFR](https://www.flux.ai/markwuflux/tps63051yffr~hz.md) - Datasheet URL: https://www.ti.com/lit/ds/symlink/tps63050.pdf?HQS=dis-mous-null-mousermode-dsf-pf-null-wwe&ts=1696455309239&ref_url=https%253A%252F%252Fwww.mouser.com%252F - Manufacturer Part Number: TPS63051YFFR - Manufacturer Name: Texas Instruments **Pins:** - EN [pin A3] - FB [pin D2] - GND [pin B1] - ILIM0 [pin B2] - ILIM1 [pin B3] - L1 [pin A1] - L2 [pin C1] - PFM/PWM [pin C2] - PG [pin C3] - SS [pin D3] - VIN [pin A2] - VOUT [pin D1] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/ellie1/buckboost-converter~bm](https://www.flux.ai/ellie1/buckboost-converter~bm).* --- *Generated from [https://www.flux.ai/ellie1/buckboost-converter~bm](https://www.flux.ai/ellie1/buckboost-converter~bm)*