SPU03M-05

Current - Output (Max):	600mA
Supplier Device Package:	--
Size / Dimension:	0.77" L x 0.30" W x 0.40" H (19.6mm x 7.5mm x 10.2mm)
Package / Case:	7-SIP Module, 4 Leads
Mounting Type:	Through Hole
Efficiency:	83%
Operating Temperature:	-40°C ~ 90°C (With Derating)
Features:	OCP, SCP
Applications:	ITE (Commercial)
Voltage - Isolation:	3000V
Power (Watts):	3W
Series:	SPU03
Voltage - Output 4:	--
Voltage - Output 3:	--
Voltage - Output 2:	--
Voltage - Output 1:	5V
Voltage - Input (Max):	13.2V
Voltage - Input (Min):	10.8V
Number of Outputs:	1
Type:	Isolated Module
Part Status:	Active
Packaging:	--

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DC DC Converters: SPU03M-05 Application Field and Working Principle

A DC-DC converter is an electrical circuit used to convert a direct current (DC) power source from one voltage level to another. SPU03M-05 is an example of a DC-DC converter which is commonly used to convert voltages levels for various applications. This article will discuss the applications fields of this device and its working principle.

Applications of SPU03M-05

SPU03M-05 is a versatile converter that is used in various applications such as power supply, portable electronics, battery charger, and automotive applications. The device is used in power supplies where it helps in regulating the output voltage while maintaining high efficiency. It is also used in automotive applications such as in electric and hybrid vehicles to provide a suitable output voltage for the car’s systems. In portable electronic devices, it is used to convert the voltage of the device’s battery or other power sources to a suitable level. This ensures that the device runs without getting damaged due to incorrect voltage levels. SPU03M-05 is also used in battery chargers to provide a suitable output voltage level to charge various types of batteries.

Working Principle of SPU03M-05

SPU03M-05 uses several components to provide the desired output voltage and is considered a “switching steppingdown” type of DC-DC converter. It uses two switching stages, a driver and an output stage. The driver stage is activated by a signal from the output voltage feedback circuit to the driver stage. This driver signal will be a square wave with a frequency according to the output voltage setpoint. The output stage is activated by the driver stage and starts switching at the frequency provided by the square wave. The frequency is controlled by the output feedback circuit.When the output is switched on, the output voltage is determined by the brake down voltage of the parts in the output stage. This is also known as the “duty cycle”. The duty cycle is the ratio of the output voltage to the output current and is inversely proportional. The output stage also includes several components which helps to limit and control the output voltage. These components are a transformer, current sense resistors, inductor, and Schottky diodes. The transformer and inductor store energy and the current sense resistors help in controlling the output current. Finally, the Schottky diodes are used to limit the maximum voltage across the output and help in preventing the output from exceeding its upper limit. In conclusion, SPU03M-05 is a versatile DC-DC converter used in many different applications. It uses several components and a two-stage process to provide the desired output voltage. The output stage incorporates several components such as transformers, current sense resistors, inductors, and Schottky diodes to help regulate and control the output voltage.

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