Is the output a percentage of the input, or a constant? If I have 20 v in, adjust to 5v out; input goes to 30v will output be 5v or 7.5v?

Output voltage is set by the variable resistor and stays independent of the input voltage ( as long as the input voltage stays a few volts above the output voltage). If the input voltage dips, the output voltage will also dip.

What are the dimensions of this voltage regulator?

43 x 21 x 12 mm using caliper on actual product.

Is there any datasheet / CAD model that shows mounting hole dimensions and location of the mounting holes?

None I know of just trace it out with standoff mounted in your project case and use dremel dril bit kit according to thread hole size. Good-luck.

Does anyone have the dimensions of mounting holes, and voltage input/output locations?

Mounting holes will work with standoff kits on amazon nylon or etal with screws . The pcb in maked vcc in- + and output - & +.

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6 Pack LM2596 DC to DC High Efficiency Voltage Regulator 3.2-35V to 1.25-30V Buck Converter DIY Power Supply Step-Down Module

6 Pack LM2596 DC to DC High Efficiency Voltage Regulator 3.2-35V to 1.25-30V Buck Converter DIY Power Supply Step-Down Module

Product ID: 50553021

Details

Brand
Valefod
Current Rating
2.5 A 3 A
Item Weight
14 g
Power Source
Battery
Product Dimensions
0.9"D x 1.77"W

⚡92% max efficiency

📏Compact 45x23x14mm size

🔧3A max output current

A$22

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Description

⚡ Power your projects like a pro — precision, efficiency, and compactness in one sleek pack!

SAFE RELIABLE - Built-in short circuit and over-temperature protection keeps your projects secure and running smoothly.
COMPACT VERSATILE - Miniature footprint fits seamlessly into any project, powering everything from hobby electronics to professional prototypes.
ROBUST BUILD QUALITY - 36μ thickened circuit boards and premium solid-state capacitors ensure durability and noise-free output.
PRECISION POWER CONTROL - Adjust voltage smoothly from 1.25V to 30V with a simple twist for perfect DIY customization.
HIGH EFFICIENCY PERFORMANCE - Up to 92% conversion efficiency means less energy wasted and cooler operation under load.

This 6-pack LM2596 DC-DC buck converter set offers adjustable output voltage from 1.25V to 30V with a max current of 3A and up to 92% efficiency. Designed with thickened circuit boards, high-Q inductors, and solid-state capacitors, these compact modules (45x23x14mm) provide reliable, noise-filtered power conversion ideal for DIY electronics and professional applications. Each module includes built-in protections and is easy to fine-tune via a potentiometer, making it a must-have for any power supply toolkit.

Specifications

ASIN	B076H3XHXP
Best Sellers Rank	#93,216 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #355 in Power Converters
Brand Name	Valefod
Current Rating	2.5 A, 3 A
Customer Reviews	4.5 4.5 out of 5 stars (1,195)
Item Dimensions D x W x H	0.9"D x 1.77"W x 0.55"H
Item Weight	14 g
Manufacturer	Valefod
Maximum Frequency	65 KHz
Minimum Frequency	50 hertz
Model	VA-HW-411
Part Number	VA-139-52
Power Source	Battery Powered
UPC	889328049201
Unit Count	6 Count

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A$22

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In stock

Sold byAmazon AustraliaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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