Home > DIY Module > Power Supply DIY > LM317 Adjustable Step Down Module DC 5V-35V to 1.25V-30V DIY Kit AC/DC Power Supply Module

LM317 Adjustable Step Down Module DC 5V-35V to 1.25V-30V DIY Kit AC/DC Power Supply Module

Item ID: 2713

5 2

Price: ~~$3.39~~ $2.20

Quantity	3+	5+	10+
Price	$2.35	$2.25	$2.10

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Description:

Input DC volt:5V-35V

Input AC volt:6V-25V

Output DC volt:1.25V-30V

Output circuit:1A(max)

Minimun dropout voltage of input and output:3V

PCB size: 71mm×46mm

Features:

1, with output protection, with onboard self-recovery fuse for short-circuit protection;

2, the output interface using audio clip, very convenient;

3, output with power switch;

4, input with rectifier circuit, which can be no polarity input.

Module Diagram:

Package Listing:
PCB board x1
KF3.96-2P x1
1N4007 x5
Switch x1
Socketx1
PTC Resettable Fuse x1
50V 407UF electrolytic capacitor x1
104 ceramic capacitor x2
M3*6 screw x1
LM317 x1
Heak sink x1
5K adjustable resistor x1
Potentiometer knob x1
2N5551 x1
5.1K resistor x1
220ohm resistor x1
25V 10UF capacitor x1
50V 2200UF capacitor x1
LED x1

I. Tested by ICStation's Outstanding Partner Tech Maker:

Learn More Details in the Video:
(The language in the video is English)

II. Tested by ICStation's Outstanding Partner Vertijog:

This item is DIY module kit, this partner has assembled the DIY Kits before the video is edited,
this item is not a finished product, please kindly noted, thanks. :)

Learn More Details in the Video:
(The language in the video is Spanish)

Quantity	3+	5+	10+
Price	$2.35	$2.25	$2.10

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Feedback

By Ra***el
Rating: [5]

Date Added: 2021-04-10 06:22:14

Another wonderful Florida sunshine and another great kit.will test later. THANKS FOR VERY FAST 3WEEK SHIPPING TO USA.VERY NICE LAYOUT.ALL COMPONENTS PRESENT AND ACCOUNTED FOR.FOR THOSE WHO ARE CONCERNED REMEMBER THIS CIRCUIT CONVERTS AC TO DC THE FOUR DIODES CONFIGURATION IS A FULL WAVE BRIDGE RECTIFIER..

By Ro***er
Rating: [4]

Date Added: 2014-06-19 03:23:36

This is a great kit for the price but unfortunately the kit came with 3 incorrect parts. Wrong voltage capacitor (too low), wrong polarity output terminals (colours transposed) and incorrect screw size for the heatsink. Also the voltage control works in reverse to normal, turn it clockwise and the output voltage decreases and vice versa, and the on/off switch only disconnects the output voltage but the input supply voltage is still powering the circuit. However in my opinion it's still good value and the incorrect parts issue has been reported and hopefully should be rectified.

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