• Name : LM2596 DC-DC  Buck module
• Input voltage :4V ~ 35V
• The output voltage : 1.23V ~ 30V
• Output Current :3A( Max)
• Conversion efficiency:92%( MAX  )
• Output ripple: and lt;30mV
• Switching frequency: 150KHz
• Working temperature: -forty Five~ +85
• Size :43mm * 21mm * 14mm(Long*Width*Hight)
  

  Features:

  1. the range of  input voltage: 3.2 V to 40 V dc  (input voltage must be higher than to the output voltage of 1.5 V above. Can’t booster)

  2. the range of  output voltage: 1.25 V dc to 35 V voltage adjustable,  high efficiency (92%)  largest maximum output current is 3A.

  Instructions:

  1. Power (3-40V), power indicator light, the module is working properly.

  2. Adjust the blue potentiometer knob (clockwise rotation generally boost,counter-clockwise rotationTurn down) and reach with a multimeter to monitor the output voltage required voltage.

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Specifications:
Module property:Non-isolation buck
Rectification mode:Non-synchronous rectifier
Input voltage:3.6V-46V
Output voltage:1.25V-35V
Output current:Rated current is 3A,
Conversion efficiency:92%( highest )
Switching frequency:65KHz
Output ripple:30mV( maximum )
Load regulation:±0.5%
Voltage regulation:± 2.5%
Work temperature:-Minus 40 degrees – 85 degrees
dimension:43mm*21mm*14mm(L*W*G)

Using the tutorial:
1. Plugged into a power supply (3-40 v),  the power indicator light is lit, the module to work properly.
2. Adjust the blue potentiometer knob (generally booster clockwise, counterclockwise step-down) with a multimeter monitoring the output voltage to the voltage.

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• CC CV Lithium

• Input voltage range : 5-36V DC  

• Output voltage range : 0.8-32v DC

• Efficiency : 95%(max)  

• Output current : 5A(max) adjustable

• L * W * H = 5.2*2.6*1.4 cm(approx.)  

• Operating Temperature: -40°c to +85 °c

• Voltage Regulation: ± 2.5%

• Load Regulation: ± 0.5%

• Output ripple: 50mV (max) 20M bandwidth

• Switching frequency: 180KHz  

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Description:
100% brand new and high quality
Type: DC/DC Constant Current / Constant Voltage
Size: (L*W*H)4.80*2.40*1.4cm/1.89″*0.94″*0.55″
Input Voltage: 5V-57V input voltage must be higher 2V than the output voltage
Output Current: rated current 2.5A/ 3A MAX ( Heat-sink Needed)
Output Voltage: 1.25-30V (Adjustable)
Output Power: 15w max at maximum voltage
Output short circuit protection: Yes, constant current (constant current setting values)
Input reverse polarity protection: Yes,
Constant current range: 0.2-3A (adjustable, default transferred 1A)
Turn lamp current: constant current value * (0.1), turn the lamp current constant current value Linkage


Benefits:

Stepless adjustment of the output voltage
Stepless adjustment of the output current
LED indicator, Red under load / Green on load free
Multiturn potentiometer with long life
Up to 1.5V (Typ. 1.16V) difference between the input and output voltages
Up to 2.5A output current
Very low power consumption at idle, about 10mA (0.01)
Temperature protection
Input voltage to 60V
High stability of the output voltage
High efficiency
No need additional cooling to 2.2A
High frequency DC/DC conversion, leading to size reduction of the device

Application:
Charger for all batteries in the range 1.23V ~ 28V, only set the precise battery voltage and charging current
High conversion when used in car
Adjustable laboratory voltage source
LED driver with constant current
Dimming devices
Laboratory power supply

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It’s LM2596HVS Not LM2596S Chip,please know it

• Type /name:LM2596HVS DC-DC step-down module
• Input Voltage:4.5V ~ 53V
• Output Voltage:3V ~ 40V
• Output Current:3A (max)
• Conversion efficiency:92%(the highest)
• Output Ripple: and lt;30mV
• Switching frequency:150KHz
• Operating Temperature:-45 ° ~ +85 °
• Size:43mm * 21mm * 14mm (L * W* H)

IN-IN + inputPositiveInput Negative!

Positive outputOUT +OUT-output negative

Input voltage range: DC4.5V to53V (inputvoltagemust be greater thanthe outputvoltageto1.5Vor morehigh.Could notboost)

Output voltage range: DC3Vto 40Vvoltage is continuously adjustable, high efficiency(up to 92%)the maximum outputcurrent of3A.

Measured12V input, 5Voutputcurrent is 1Aload regulationrate of less than1%