Description

MT3608 Step-up DC-DC Converter Power Supply Module Datasheet

1. General Description

The MT3608 is a high-efficiency step-up DC-DC converter module. It is designed to supply power in applications requiring higher
voltages from a lower voltage source. The module is capable of generating output voltages up to 28V from an input as low as 2V.
It is widely used in battery-powered devices, portable electronics, and other applications where efficient voltage boosting is needed.

2. Features

• Input Voltage Range: 2V to 24V
• Output Voltage: Adjustable from 2V to 28V
• Maximum Output Current: 2A (depends on the input voltage and output voltage)
• Efficiency: Up to 93%
• Switching Frequency: 1.2MHz
• Low Quiescent Current: 130µA
• Integrated Over-Temperature Protection
• Integrated Short-Circuit Protection
• Compact Size: 36mm x 17mm x 7mm (L x W x H)

3. Applications

• Battery-Powered Devices
• Portable Electronics
• LED Drivers
• Power Supply for Sensors
• DIY Electronics Projects

4. Pin Configuration and Functions

Pin	Name	Description
IN+	VIN	Input positive terminal
IN-	GND	Ground (Input negative terminal)
OUT+	VOUT	Output positive terminal
OUT-	GND	Ground (Output negative terminal)

5. Electrical Characteristics

Parameter	Conditions	Min	Typ	Max	Units
Input Voltage Range	–	2	–	24	V
Output Voltage Range	VIN = 5V, IOUT = 500mA	2	–	28	V
Output Current	VIN = 5V, VOUT = 9V	–	1	2	A
Efficiency	VIN = 5V, VOUT = 9V, IOUT = 1A	80	93	–	%
Switching Frequency	–	1.0	1.2	1.4	MHz
Quiescent Current	VIN = 5V	–	130	250	µA
Over-Temperature Protection	Temperature Threshold	–	150	160	°C
Short-Circuit Protection	Current Threshold	–	2.5	–	A

6. Adjusting the Output Voltage

The output voltage can be adjusted using the onboard potentiometer.
Rotate the potentiometer clockwise to increase the output voltage.
Rotate the potentiometer counterclockwise to decrease the output voltage.

Note: Ensure that the output voltage does not exceed the maximum voltage rating of the connected load.

7. Package Dimensions

• Length: 36mm
• Width: 17mm
• Height: 7mm

8. Usage Instructions

1. Connect the Input: Connect the positive input voltage to the VIN terminal and the negative to the GND terminal.
2. Connect the Output: Connect the output terminals to the load.
3. Adjust the Output Voltage: Use the onboard potentiometer to adjust the desired output voltage.
4. Power On: The module will begin boosting the input voltage to the desired output voltage.

9. Safety Notes

• Do not exceed the input voltage range to avoid damage to the module.
• Ensure proper heat dissipation to avoid overheating, especially when operating near the maximum current.
• Always confirm the output voltage before connecting sensitive loads.