Comparison page

AMS1117-3.3 vs PCA9685

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.

PCA9685

Projects needing PWM and Servo with a commonly available power part.

Specification Matrix

DimensionAMS1117-3.3 PCA9685

CategoryPowerPower

MakerAdvanced Monolithic SystemsNXP

CoreNot specifiedNot specified

ClockNot specifiedNot specified

WirelessNot specifiedNot specified

Voltage3.3V3.3V

LibrariesNeeds verificationArduino, MicroPython

Price$0.05 - $0.30$1.50 - $5.00

Known Tradeoffs

AMS1117-3.3

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

PCA9685

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

PCA9685

NXP

16-channel PWM controller used for servo control, LED dimming, and robotics projects.

China-madePower88% confidence