Comparison page

AMS1117-3.3 vs FUSB302

Side-by-side selection notes for specs, ecosystem readiness, known issues, and data confidence. This page is generated from structured component fields instead of a hand-written article.

AMS1117-3.3

Projects needing LDO and Common with a commonly available power part.

FUSB302

Projects needing USB-C and I2C with a commonly available power part.

Specification Matrix

DimensionAMS1117-3.3 FUSB302

CategoryPowerPower

MakerAdvanced Monolithic Systemsonsemi

CoreNot specifiedNot specified

ClockNot specifiedNot specified

WirelessNot specifiedNot specified

Voltage3.3V3.3V

LibrariesNeeds verificationArduino

Price$0.05 - $0.30$0.80 - $2.50

Known Tradeoffs

AMS1117-3.3

Breakout boards may use different pin labels or regulator choices
Clone modules can differ from the original datasheet part

FUSB302

Breakout boards may use different pin labels or regulator choices
Clone modules can differ from the original datasheet part

Open Individual Model Pages

AMS1117-3.3

Advanced Monolithic Systems

Legacy linear regulator used on many Arduino and ESP breakout boards.

China-madePower76% confidence

FUSB302

onsemi

USB Type-C controller used for USB-C configuration and power negotiation experiments.

China-madePower78% confidence