Comparison page

74HC595 vs LM2596

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.

74HC595

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

LM2596

Projects needing Buck and Common module with a commonly available power part.

Specification Matrix

Dimension74HC595 LM2596

CategoryPowerPower

MakerNexperiaTexas Instruments

CoreNot specifiedNot specified

ClockNot specifiedNot specified

WirelessNot specifiedNot specified

Voltage3.3V3.3V

LibrariesArduino, MicroPythonNeeds verification

Price$0.05 - $0.30$0.40 - $1.50

Known Tradeoffs

74HC595

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

LM2596

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

Open Individual Model Pages

74HC595

Nexperia

8-bit shift register used to expand outputs for LEDs, relays, and simple digital control.

China-madePower86% confidence

LM2596

Texas Instruments

Classic buck regulator used in large inexpensive adjustable step-down modules.

China-madePower84% confidence