LM2596 2A Buck Step-down Power Converter Module DC 4 ~ 40 to 1.3-37V LED Voltmeter
- SKU: 11553 - Highly efficient LM2596 Buck Step-down Power Converter module with integrated LED Voltmeter.
- Accepts a wide Input Voltage range of 4V to 40V DC and provides an adjustable Output Voltage from 1.3V to 37V DC.
- Offers a reliable 2A Rated Output Current (up to 3A max with sufficient cooling/heatsink).
- Features essential protections: Input Reverse Polarity Protection and Built-in Output Short Circuit Protection.
- Ideal for converting higher voltage battery or power supply sources to lower regulated voltages.
Product Details
LM2596 2A Buck Step-down Power Converter Module with LED Voltmeter (SKU: 11553)
The LM2596 Buck Step-down Converter Module is a robust and highly efficient DC-DC module designed to reliably drop a higher input voltage down to a lower, adjustable output voltage. This version is particularly useful as it includes an onboard LED Voltmeter, allowing for real-time monitoring of either the input or the output voltage with the press of a button. The module is based on the popular LM2596 regulator IC, which is known for its excellent line and load regulation.
The module accepts a broad Input Voltage range of 4V to 40V DC and provides a continuously adjustable output from 1.3V to 37V DC via the onboard potentiometer. It can sustain a continuous output current of 2A and can handle peaks up to 3A when properly cooled (recommended heatsink for continuous operation above 2A). Critical safety features like Input Reverse Polarity Protection and Built-in Output Short Protection enhance its reliability in prototyping and finished products. Operating at a fixed 150 kHz switching frequency, it provides high efficiency for applications like battery charging, regulated power for microcontrollers, and LED drivers.
🔧 Key Features
- SKU: 11553.
- Model: Buck Converter Module.
- Driver IC: LM2596.
- Display: Onboard 3-Digit LED Voltmeter (displays Input/Output).
- Protection: Input Reverse Polarity and Output Short Circuit.
- Efficiency: Typically up to 92%.
💡 Usage Notes
- The input voltage must always be higher than the desired output voltage (step-down function).
- A heatsink is required for sustained operation above 2A output current.
⚙ Technical Specifications Summary
| Model No. | LM2596 |
| Input Voltage (V) | 4 V ~ 40 VDC |
| Output Voltage (V) | 1.3 V ~ 37 VDC (Adjustable) |
| Output Current | 2 A (Rated Continuous), 3 A (Max with Heatsink) |
| Switching Frequency (KHz) | 150 kHz |
| Operating Temperature (°C) | -40 to 90 °C |
| Output Current (mA) | 2000 mA |
📦 Package Includes
- 1 × LM2596 2A Buck Step-down Power Converter Module with LED Voltmeter
