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

📏Adjustable 1.25-30V output

🔧Compact 45x23x14mm size

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Description

⚡ Power your innovation with precision and style!

COMPACT MODULAR - Sleek 45x23x14mm footprint fits effortlessly into any DIY setup or professional prototype.
ROBUST BUILD QUALITY - Thick 36μm circuit boards and solid-state capacitors ensure durability and noise-free output.
READY FOR ANY PROJECT - Includes 6 modules with LED indicators and easy potentiometer adjustment—perfect for multitasking pros.
PRECISION POWER CONTROL - Fine-tune voltage from 1.25V to 30V with ±2.5% accuracy for flawless project performance.
HIGH EFFICIENCY CONVERSION - Maximize energy savings with up to 92% conversion efficiency, reducing heat and power waste.

This 6-pack LM2596 DC-DC buck converter set offers adjustable 1.25-30V output at up to 3A with 92% efficiency. Featuring thickened circuit boards, high-Q inductors, and solid-state capacitors, these compact 45x23x14mm modules deliver stable, low-noise voltage regulation ideal for professional DIY electronics and prototyping. Each module includes an LED output indicator and is easy to fine-tune via a built-in potentiometer, making it a must-have for millennial tech creators seeking reliable, space-saving power solutions.

Specifications

ASIN	B076H3XHXP
Best Sellers Rank	#51,556 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #190 in Power Converters
Brand	Valefod
Brand Name	Valefod
Current Rating	2.5 A, 3 A
Customer Reviews	4.5 out of 5 stars 1,189 Reviews
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
Number of Items	6
Part Number	VA-139-52
Power Source	DC
Product Dimensions	0.9"D x 1.77"W x 0.55"H
UPC	889328049201
Unit Count	6 Count
Warranty Description	1 Year Limited Warranty

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AED 56

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In stock

Sold byAmazon UAEDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to UAE.

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TrustScore 4.5 | 7,300+ reviews

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