9V 12V 24V to 5V 3A
Input voltage:4.5-28V
Output : 5V
Conversion efficiency:92%(Max)
Switching frequency:1.4MHz(Max) Typical 1MHz
Working temperature:-40C - +85C
Load capacity:3A(Max) Typical 1.5A
Size:26.4*16.3*5mm

5V to 3.3V 0.8A
1: input: DC 4.5 V-7 V (input voltage must be more than to output voltage high 1 V above.)
2: output: 3.3 V, 800 mA (load current can't more than 800 mA)
3 : PCB size:8.6* 12.3 mm

DC 6V - 12V
1.one input: DC 6V - 12V (input voltage to the output voltage must be higher than 1V or more.)
2 triple output: 3.3V (+ - 0.05v error), 5.0V (+ - 0.05v error), 800mA (load current can not exceed 800ma), 12V (12V input directly to the output)
Three pairs of panel design, layout nice;
4 specially designed two pin fixing holes can be directly fixed hole plate expansion experiments;
5 uses multiple input and output pin, easy to use and connection;
6 PCB board size: 4.5cm * 4.5cm
7 with power indicator light (red)

1/1.2V 1.5V 1.8V 2.5V 3V to DC 3.3V
Input voltage 0.8 ~ 3.3V,output 3.3V
Maximum output current: 500 MA,
Start Voltage 0.8V, Output Current 10MA
INPUT 1-1.5V, OUTPUT 3.3V 50-110MA;
INPUT 1.5-2V, OUTPUT 3.3V 110-160MA;
INPUT 2-3V, OUTPUT 3.3V 160-400MA;
INPUT above 3V, OUTPUT 3.3V 400-500MA;
DC-DC Boost module working frequency 150KHZ. efficiency is normal 85% .
2.54mm pin pitch, Arduiuo Breadboard friendly.
Excluding Pin Size 11mm x 10.5mm x 7.5mm(Very small)
Weight : about 1.2g( Very light)

DC 3V-6V to12V
Input voltage 3~6V, output 12V
Maximum input current : 1.2A
Long-term work Current : 1A
Conversion efficiency : 80-90%
1.2A current limiting resistor,Remove the resistance, the maximum input current can reach 2A.
But IC have "Over Temperature Protection" Function.It will turn off the power MOSFET automatically when the internal junction temperature is over 150 ℃. The power MOSFET wake up when the junction emperature drops 30 ℃ under the OTP threshold temperature
Start Voltage 2.8V, Output Current 50MA
Input 3V 1A; Output 12V 220MA
Input 3.3V 1A; Output 12V 250MA
Input 3.7V 1A; Output 12V 280MA
Input 4.5V 1A; Output 12V 340MA
Input 5V 1A; Output 12V 370MA
Input 6V 1A; Output 12V 450MA
DC-DC Boost module working frequency 1.0MHZ.
Operating ambient temperature : -40~+85 Degrees Celsius
2.54mm pin pitch,Arduiuo UNO DUE Breadboard FPGA/CPLD Development Board friendly.

9V/12V/19V To 5V 3A
Product Name: DC-DC step-down module
Size: L23.6mm * W14.2mm * H4mm
Input: 4.5V-23V
Fixed Output: 5V
Conversion efficiency: 92% (Max)
Switching frequency: 340KHZ (Max)
Operating temperature: -40 ~+ 85 degrees
Load capacity: Maximum 3A, can 1.5A long running
Application :USB 5V power supply of mobile power, equipment, mobile phones, flat-panel

9V/12V/19V To 3.3V 5A
Product Name: DC-DC step-down module
Input: 4.5V-23V
Application :USB 3.3V power supply of mobile power, equipment, mobile phones, flat-panel

5-15W DC 3 to 18V
Working voltage: 3 to 18 v
The board size: 45 (mm) x33 (mm)
Onboard TDA7266 audio power amplifier chip, double channel 7W+7W, speaker for European 4-8 5-15W use
Main pin has led chips, convenient external device control, onboard 2 road, 5.08 (mm) distance between 2 p terminal, around a track connection output respectively
Onboard dial potentiometer, can adjust the volume of output size
Wupport for DC, terminals, pin 3 power supply input mode, the default for the DC,

8V-35V to 6V
Step down power module
Input volt:8V-35V
Output volt:6V
output current:1A(MAX)
Package:
Listing:
PCB board x1
L7806 x1
Heat sink x1
M3*6 screw x1
Male pin x8
KF3.96-2P x2
1N4007 x4
470uf 50V capacitance x1
100uf 50v capacitance x1
4.7k resistance x1
3mm LED x1

DC-DC 3V 5V 16V
Item Description:
Whole network smallest maximum 3A output.
Application:
DIY mobile power, monitor power supply, power buggies, camera power supply, car power, communications equipment supply, various right size and weight for demanding applications (such as aviation models, etc.).
Input voltage: 4.5-28V
Output Voltage: 0.8-20V (adjustable)
Output current: rated current 3A(MAX).
Switching Frequency: 1MHz
Output Ripple:less than 30mV
Efficiency:96%(max)
Operating temperature: Industrial grade (-40 C to +85 C)
Module Properties: Non-isolated step-down module (buck)
Size:22*17*4mm