1.Description: It is a DC constant voltage constant current step down power supply module.It can be used as ordinary buck power supply module, charger and LED constant current driver.Simple and efficient, practical.

2.Features:

1>.High input voltage;

2>.Stable voltage output;

3>.Support over temperature protection;

4>.Support overvoltage protection;

5>.Support short circuit protection;

6>.Low power consumption;

7>.Support constant voltage constant current output;

8>.Support charging function;

9>.With heat sink and keep good heat dissipation.

3.Parameters:

1>.Product Name:DC Step Down Power Supply Module

2>.Working Voltage:DC 16V-90V, DC16-120V, DC9-90V, DC9-120V(Keep input is at least 4.0V high than output)

3>.Output Voltage:DC5V, 12V

4>.Output Current:3A

5>.Output Power:5V-15W, 12V-36W

6>.Conversion efficiency:About 96%(The smaller the differential voltage, the higher the efficiency)

7>.Working frequency:140KHz

8>.Soft Starter:Yes(Failure at high power load)

9>.Over temperature protection:Yes

10>.Overvoltage protection:Yes

11>.Short circuit protection:Yes

12>.Working Temperature range:-40��~85��

13>.Working Humidity range:0%-95%RH

14>.Size:42*30*17mm/42*30*20mm

4.Using Steps:

1>.Connect right input voltage at input terminal.

2>.Turn ON power supply.

3>.Check output voltage by voltmeter and ammeter.

4>.Connect load.

5.Note:

1>.It is a step down power supply module,So please keep input is at least 4.0V high than output.

2>.Input and output are Non-isolated, safe and reliable.

6.Application: 1>.Ordinary power supply;

2>.Battery charger;

3>.LED drive power;

4>.Power conversion.