





LM2596s DC-DC Step-down Power Supply Module 3A Adjustable Step-Down Module LM2596 Voltage Regulator 24V 12V 5V 3V
2.28$
1.19$
Quantity:
1
Availability:
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LM2596S:
1. the range of input voltage: 3.2 V to 40 V dc (input voltage must be higher than to the output voltage of 1.5 V above. Can't booster)
2. the range of output voltage: 1.25 V dc to 35 V voltage adjustable, high efficiency (92%) largest maximum output current is 3A.
Input voltage :4V ~ 35V
The output voltage : 1.23V ~ 30V
Output Current :3A( Max)
Conversion efficiency:92%( MAX )
Output ripple: <30mV
Switching frequency: 150KHz
Working temperature: -forty Five~ +85
Size :43mm * 21mm * 14mm(Long*Width*Hight)
Instructions:
1. Power (3-40V), power indicator light, the module is working properly.
2. Adjust the blue potentiometer knob (clockwise rotation generally boost,counter-clockwise rotationTurn down) and reach with a multimeter to monitor the output voltage required voltage.
Note:
Current work long hours is recommended for use in less than 2.5A, while adding bulkHeat sink (10W output above),because it is the step-down module, in order to ensure stable output Set,please keep the minimum 1.5V differential.


Customer Reviews
130 ratings
works well (8)
as described (7)
fast delivery (7)
good packaging (6)
good quality (3)
satisfactory (3)
Customer photos (29)
Buyer from United States
May 14, 2026
haven't tried it yet but exactly wat was picture and how it was described.
Buyer from Brazil
September 27, 2026
At the output, it is not exceeding 11.89V.
Translated by AliExpress ·
Buyer from Ukraine
September 23, 2026
Shipped the day after payment. Delivered to Kyiv in 12 days. Received the modules intact and functional. The task was to obtain 1.5V from a 5V USB port to replace the battery of a wall clock. The task was completed. The downside is that from the top output voltage of 5V to 2V the adjustment is smooth, but below that it is adjusted in large steps, making it very difficult to set the output to 1.5V. But I managed to get 1.53V and left it as is because I got tired of adjusting it.
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Buyer from Chile
August 8, 2026
Super Useful
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М***ч
August 1, 2026
Hello, I received the package, checked everything, everything works, the quality is excellent, the seller is reliable.
Translated by AliExpress ·
y***s
July 8, 2026
They stole my money and didn't refund anything.
Translated by AliExpress ·
LM2596s DC-DC Step-down Power Supply Module 3A Adjustable Step-Down Module LM2596 Voltage Regulator 24V 12V 5V 3V
2.28$
1.19$
Quantity:
1
Availability:







