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LM317 Adjustable DC-DC Step-Down Linear Voltage Regulator Module

The LM317 Adjustable Voltage Regulator Module is a versatile and reliable solution for stepping down DC voltages in various electronic applications. Utilizing the LM317 linear regulator IC, this module allows for output voltage adjustments from 1.2V to 37V, accommodating input voltages ranging from 4.5V to 40V. It's ideal for DIY electronics, prototyping, and power supply customization.

📄 Datasheet

🖼️ Product Images

LM317 Adjustable Voltage Regulator Module

📐 Specifications

ParameterValue
Input Voltage4.5V – 40V DC
Output Voltage1.2V – 37V DC (adjustable)
Output Current1.5A (typical), up to 2.2A with heat sink
Voltage Regulation±1%
Load Regulation±0.1%
Module Dimensions43mm x 21mm x 14mm

🔌 Pin Configuration

  • IN+ – Positive DC input
  • IN− – Ground (DC input)
  • OUT+ – Positive DC output
  • OUT− – Ground (DC output)
  • Adjust – Voltage adjustment via onboard potentiometer

⚙️ Features

  • Adjustable output voltage from 1.2V to 37V
  • Wide input voltage range: 4.5V to 40V
  • Maximum output current of 1.5A without heat sink
  • Built-in thermal overload protection
  • Short-circuit protection
  • Onboard potentiometer for easy voltage adjustment
  • Compact size suitable for various applications

🧰 Applications

  • DIY power supply projects
  • Arduino and Raspberry Pi voltage regulation
  • Battery charging circuits
  • LED drivers
  • Embedded system power management

Popular Brand

Raspberry-PI
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