Your power supply problems just got SUPER SOLVED! This 3.3V Buck Converter Breakout board is perfect for powering low voltage circuits from a single Li-Ion cell battery or USB power.This chip offers a 600-mA load current throughout the entire input voltage range of 3.5 to 5.5V. Ideal for portable projects, it is pin-compatible with the LM1117-3.3V TO-220 chip, allowing for seamless swaps and 90-95% efficiency!An ENABLE pin lets you tie it low to completely shut down the output. Experience a 2-MHz fixed-frequency in PWM mode, with PFM mode extending battery life by reducing current during light load or standby operations. Comes with a fully assembled and tested breakout board, plus headers for easy breadboard plugin. https://elecena.pl/product/29469359/adafruit-lm3671-3-3v-buck-converter-breakout-3-3v-output-600ma-max 2025-11-01 https://elecena.pl/product/29469359/adafruit-lm3671-3-3v-buck-converter-breakout-3-3v-output-600ma-max 2025-12-19 https://elecena.pl/product/29469359/adafruit-lm3671-3-3v-buck-converter-breakout-3-3v-output-600ma-max 2026-01-23 https://elecena.pl/product/29469359/adafruit-lm3671-3-3v-buck-converter-breakout-3-3v-output-600ma-max 2026-01-29 https://elecena.pl/product/29469359/adafruit-lm3671-3-3v-buck-converter-breakout-3-3v-output-600ma-max 2026-01-31 https://elecena.pl/product/29469359/adafruit-lm3671-3-3v-buck-converter-breakout-3-3v-output-600ma-max 2026-02-03 https://elecena.pl/product/29469359/adafruit-lm3671-3-3v-buck-converter-breakout-3-3v-output-600ma-max 2026-03-15 https://elecena.pl/product/29469359/adafruit-lm3671-3-3v-buck-converter-breakout-3-3v-output-600ma-max 2026-03-17 https://elecena.pl/product/29469359/adafruit-lm3671-3-3v-buck-converter-breakout-3-3v-output-600ma-max 2026-04-08 https://elecena.pl/product/29469359/adafruit-lm3671-3-3v-buck-converter-breakout-3-3v-output-600ma-max 2026-04-15 https://elecena.pl/product/29469359/adafruit-lm3671-3-3v-buck-converter-breakout-3-3v-output-600ma-max 2026-04-25 https://elecena.pl/product/29469359/adafruit-lm3671-3-3v-buck-converter-breakout-3-3v-output-600ma-max 2026-05-03 https://elecena.pl/product/29469359/adafruit-lm3671-3-3v-buck-converter-breakout-3-3v-output-600ma-max 2026-05-15 https://elecena.pl/product/29469359/adafruit-lm3671-3-3v-buck-converter-breakout-3-3v-output-600ma-max 2026-07-01 https://elecena.pl/product/29469359/adafruit-lm3671-3-3v-buck-converter-breakout-3-3v-output-600ma-max 2026-07-04 https://elecena.pl/product/29469359/adafruit-lm3671-3-3v-buck-converter-breakout-3-3v-output-600ma-max 2026-07-23 https://elecena.pl/product/29469359/adafruit-lm3671-3-3v-buck-converter-breakout-3-3v-output-600ma-max 2026-08-01