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LM317 Adjustable Step-Down Regulated Power Supply Module

Overview

Name: Adjustable Linear Regulator Output Current: 1.5A (minimum), 2.2A (typical) Input-Output Voltage Difference (VI-VO): 40Vdc (maximum) Adjustable Output Voltage Range: 1.2～37V
Operating Temperature: -55°C to +150°C Current Output: 1.5A Voltage Input: 4.2 ~ 40 V
Operating Temperature: 0°C ~ 125°C Input Method: VIN (positive), GND (negative) Output Method: VOUT (positive), GND (negative) Maximum Output Current: Maximum output current = 3 / (input voltage - output voltage)

Input Voltage: 40V-4.5V (actual maximum limit up to 40V),

Adjustment Method: First, correctly connect the input power supply (between 40V and 4.5V), then use a multimeter to monitor the output voltage and adjust the potentiometer (generally clockwise for boost, counterclockwise for buck).

Design Files

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Update:2026-03-26 15:39:34

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