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LM2596 Buck Converter Price in Pakistan | DC to DC Supply
LM2596 Buck Converter
The LM2596 is a step-down (buck) voltage regulator that efficiently converts a higher voltage (4V-40V) to a lower, stable voltage (1.25V-37V) with up to 3A current output. It’s widely used in DIY electronics, power supply circuits, battery charging, and embedded systems.Chip.pk give best LM2596 Buck Converter Price in Pakistan.
⚡ Key Features of LM2596
✔ Input Voltage: 4V – 40V
✔ Output Voltage: 1.25V – 37V (adjustable)
✔ Output Current: Up to 3A (with proper heat dissipation)
✔ Efficiency: ~90% (depends on input/output voltage difference)
✔ Switching Frequency: 150 kHz
✔ Thermal Protection & Short Circuit Protection
🔹 Type: DC-DC Buck Converter (reduces voltage, but does NOT increase it)
🔹 Works with: Arduino, Raspberry Pi, ESP32, Robotics, Battery Chargers, Solar Power Systems
🛠 How to Use LM2596 Buck Converter?
1️⃣ Identify the Pins
- VIN (Input Voltage) – Connect to the higher voltage source (e.g., 12V battery, 24V power adapter).
- GND (Ground) – Connect the ground of the input and output circuits.
- VOUT (Output Voltage) – Provides the regulated output voltage.
2️⃣ Connect Input Power
- Example: If you have a 12V power source and need 5V output, connect:
- 12V to VIN
- GND to GND
- VOUT will give a lower voltage (adjustable).
3️⃣ Adjust the Output Voltage
- Turn the potentiometer (small screw) clockwise to increase voltage.
- Turn it counterclockwise to decrease voltage.
- Measure with a multimeter to get the desired voltage.
4️⃣ Connect Your Load
- Once the output voltage is set, connect your device, Arduino, ESP32, LED strip, or motor to VOUT.
📌 Practical Applications of LM2596
🔹 Powering Microcontrollers & SBCs
- Convert 12V or 24V to 5V for Raspberry Pi, Arduino, ESP32, etc.
- Avoid using inefficient linear regulators that waste power.
🔹 Battery Charging (Lithium, Lead-Acid, NiMH)
- Step down solar panel voltage (18V) to 12V for charging lead-acid batteries.
- Convert 12V battery to 5V for USB devices (with extra 5V regulator).
🔹 LED & Motor Speed Control
- Regulate power for LED strips, fans, or DC motors (set correct voltage).
- Example: Convert 12V to 9V for a 9V LED circuit.
🔹 Car USB Power Supply
- Convert car battery (12V or 24V) to 5V USB output.
🔹 Solar & Renewable Energy Projects
- Use with solar panels to provide stable voltage for IoT and off-grid applications.
🔥 Tips for Using LM2596 Safely
✔ Do not exceed 3A output current (Use a heatsink if needed).
✔ Check input & output polarity before powering on.
✔ Use capacitors (100µF – 470µF) for smooth voltage output.
✔ Use a multimeter to verify output voltage before connecting sensitive electronics.
🏆 LM2596 vs. Other Regulators
| Feature | LM2596 (Buck) | XL4015 (Higher Power) | AMS1117 (Linear) |
|---|---|---|---|
| Type | Switching (Efficient) | Switching (More Power) | Linear (Less Efficient) |
| Max Current | 3A | 5A | 1A |
| Efficiency | 75-90% | 85-95% | 50-60% |
| Adjustable? | ✅ Yes (1.25V-37V) | ✅ Yes (1.25V-36V) | ❌ No (Fixed 5V, 3.3V) |
| Best For | General Power Supply | High Power Loads | Small Circuits |
🔋 LM2596 Buck Converter – In-Depth Guide
The LM2596 is a DC-DC step-down (buck) voltage regulator that efficiently reduces a higher DC voltage to a lower, stable output voltage. It’s widely used in electronics for powering Arduino, Raspberry Pi, ESP32, motors, LED strips, and battery chargers.
Let’s explore everything you need to know: working principles, applications, advantages, circuit diagrams, and troubleshooting tips.
⚙️ How Does LM2596 Work?
The LM2596 is a switching regulator, meaning it doesn’t just dissipate excess voltage as heat (like a linear regulator), but instead uses pulse-width modulation (PWM) to efficiently step down the voltage.
🔄 Step-Down Process:
- Power Input (VIN) – Connects to a higher DC voltage (e.g., 12V, 24V, or 40V).
- Switching Regulator – Uses PWM to regulate voltage by rapidly switching ON/OFF.
- Inductor & Diode Filtering – Smoothens the output, preventing voltage spikes.
- Stable Output (VOUT) – Provides a lower, stable voltage (adjustable from 1.25V to 37V).
Efficiency: ~75-90% (Much better than a linear regulator like LM7805).
🛠 How to Use the LM2596 Buck Converter?
1️⃣ Identify the Connections
| Pin | Function |
|---|---|
| VIN | Connect to input voltage (4V – 40V) |
| GND | Common ground for input and output |
| VOUT | Provides stepped-down voltage (adjustable 1.25V – 37V) |
2️⃣ Connect Input Voltage
- Example: If you have a 12V power adapter and need 5V output, connect:
- 12V to VIN
- GND to GND
- Measure VOUT before connecting any load!
3️⃣ Adjust Output Voltage
- Turn the potentiometer (small screw):
- Clockwise → Increases output voltage
- Counterclockwise → Decreases output voltage
- Use a multimeter to fine-tune the voltage before connecting your load.
4️⃣ Connect the Load
- Once the desired output voltage is set, connect your Arduino, Raspberry Pi, ESP32, LED strips, sensors, or motors.
📌 Applications of LM2596
🔹 Microcontroller Power Supply
- Convert 12V or 24V to 5V for Raspberry Pi, Arduino, ESP8266, ESP32, etc.
- More efficient than using linear regulators like LM7805.
🔹 Battery Charging & Protection
- Step down solar panel (18V) to 12V for lead-acid battery charging.
- Convert 12V battery to 5V for USB power banks.
- Adjust output current using an additional current limiter.
🔹 LED Strips & Lighting
- Regulate 12V to 9V for LED strips or custom lighting projects.
- Prevents overheating & overvoltage damage to LEDs.
🔹 Motor Speed Control
- Adjust motor voltage (e.g., 12V → 9V) to control speed.
- Works with DC fans, pumps, and robotics.
🔹 Car Electronics & USB Power
- Convert car battery (12V or 24V) to 5V for USB-powered devices.
- Power dashcams, GPS modules, and sensors.
🔹 Renewable Energy & Solar Projects
- Use in solar power banks, IoT devices, and off-grid power solutions.
- Step down solar 18V to 12V or 5V for charging controllers.
🏆 Advantages of LM2596 vs. Other Regulators
| Feature | LM2596 (Switching) | LM7805 (Linear) | XL4015 (Higher Power) |
|---|---|---|---|
| Type | Buck Converter | Linear Regulator | Buck Converter |
| Efficiency | 75-90% | 40-60% | 85-95% |
| Max Input Voltage | 40V | 35V | 38V |
| Max Output Current | 3A | 1A | 5A |
| Adjustable Output? | ✅ Yes (1.25V-37V) | ❌ No (Fixed 5V) | ✅ Yes (1.25V-36V) |
| Heat Dissipation | Low (efficient) | High (wastes energy as heat) | Moderate |
| Best For | General Electronics | Simple Low Power | High-Power Loads |
🔹 LM2596 is better than LM7805 for efficiency & power delivery.
🔹 For >3A loads, use XL4015 instead.
🔧 Common Problems & Troubleshooting
| Issue | Possible Cause | Solution |
|---|---|---|
| Output voltage too high/low | Potentiometer not set correctly | Adjust using a multimeter |
| Module overheating | Exceeding 3A limit | Add a heatsink or fan |
| Voltage drops under load | Power source too weak | Use a higher current power supply |
| No output voltage | Incorrect wiring | Check VIN & GND connections |
| Noise/interference in output | Lack of filtering capacitors | Add 100µF to 470µF capacitors |
🔌 DIY Project Ideas with LM2596
1️⃣ Raspberry Pi & Arduino Power Supply
- Convert 12V or 24V to 5V to power SBCs and microcontrollers.
2️⃣ Adjustable Bench Power Supply
- Connect an LM2596 module to a 24V laptop charger to get variable output from 1.25V to 12V+.
3️⃣ Battery-Powered IoT Sensors
- Use an LM2596 to step down Lithium battery voltage (7.4V) to 3.3V or 5V for ESP32/ESP8266.
4️⃣ DIY Solar-Powered USB Charger
- Step down 18V solar panel to 5V USB for charging smartphones & IoT devices.
5️⃣ Motor Speed Controller
- Use LM2596 to regulate voltage for DC motors to control speed without PWM.
💡 Best Practices for Using LM2596
✔ Use a multimeter before connecting to a load.
✔ Keep input voltage at least 1.5V higher than the required output.
✔ Use a heatsink if drawing over 2A continuously.
✔ Add input/output capacitors (100µF – 470µF) for stability.
✔ Use shielded cables to reduce noise in sensitive circuits.
🔥 Final Thoughts – Should You Use LM2596?
✅ YES – If you need an efficient, adjustable voltage regulator for electronics, Arduino, Raspberry Pi, IoT, and robotics.
❌ **NO – If you need a step-up (boost) converter, in which case use an MT3608 or XL6009 Boost Converter.
Customer Support:-
- Available 24/7
- Phn # 03091416242
- Mail # Cpakstore@gmail.com
Package Include:-
- 1 X LM2596 Buck
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| Weight | 0.2 kg |
|---|---|
| Dimensions | 24 × 2 cm |
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