1PCS Mini Step Down Power Supply Module Voltage Buck Converter Adjustable 97.5% 1.8V 2.5V 3.3V 5V 9V 12V DC-DC 12-24V To 5V 3A

1: The output current is 3a, long time operation is 2.1a, and the margin is sufficient.

2: The circuit design does not need electrolytic capacitor and tantalum capacitor

3: Improve the conversion efficiency. Reduce calorific value.

4: Small size, 20 (L) * 11 (W) * 5 (H) mm.

5: Low quiescent current, quiescent current 0.85 ma. Connected to the car battery without a switch, can be connected to the cigarette lighter line, or ACC power line.

6: Output integrated adjustable fixed voltage, fixed output does not need to be customized, can be directly spot welding on the board, very voltage, can be adjusted with potentiometer, versatility is very strong

7: Integrated enable port, working mode by default, low level off, convenient for control

Module parameters

Module property: Buck synchronous rectifier

Input voltage: DC 4.5-24 V

Output voltage: integrated adjustable fixed output, back can choose fixed output voltage

Adjustable range (0.8-17v), fixed voltage (1.8V 2.5V 3.3V 5V 9V 12V)

Output current: 3A (full load, please pay attention to heat dissipation), actual test input 12V, output less than 1.5A, no special heat dissipation.

Conversion efficiency: 97.5% (6.5 to 5V 0.7A)

Switching frequency: 500KHz

Output ripple: 20mV (12V to 5v3a) 20mm bandwidth

Working temperature: industrial grade (-40 ℃ to +85 ℃) (the higher the ambient temperature, the lower the output power)

Output over voltage protection: None

Full load temperature rise: 40 ℃

Static current: 0.85 Ma

Load adjustment rate: ± 1%

Voltage adjustment rate: ± 0.5%

Dynamic response speed: 5% 200us

Output short circuit protection: Yes, do not short circuit for a long time

Input reverse connection protection: none, input reverse connection protection diode

Enabling control: Yes, high level operation, low level stop working, high level is 2-5v, low level is about 0V. The default internal is with pull up to input positive.

Wiring mode: Welding

Input method: Welding

Output mode: Welding / needle arrangement

Welding hole spacing: 2.54 mm

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