Comparison page

PCF8574 vs TPS63020

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.

PCF8574

Projects needing IO expansion and I2C with a commonly available power part.

TPS63020

Projects needing Buck-boost and Battery with a commonly available power part.

Specification Matrix

DimensionPCF8574 TPS63020

CategoryPowerPower

MakerNXPTexas Instruments

CoreNot specifiedNot specified

ClockNot specifiedNot specified

WirelessNot specifiedNot specified

Voltage3.3V3.3V

LibrariesArduino, MicroPythonNeeds verification

Price$0.20 - $1.00$1.00 - $3.50

Known Tradeoffs

PCF8574

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

TPS63020

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

Open Individual Model Pages

PCF8574

NXP

I2C GPIO expander often used in LCD backpacks and small IO expansion modules.

China-madePower84% confidence

TPS63020

Texas Instruments

Buck-boost converter used where battery voltage may be above or below the target rail.

China-madePower82% confidence