PG02S4812A

Current - Output (Max):	167mA
Control Features:	Enable, Active Low
Size / Dimension:	0.86" L x 0.36" W x 0.44" H (21.8mm x 9.1mm x 11.2mm)
Package / Case:	8-DIP Module, 7 Leads
Mounting Type:	Through Hole
Efficiency:	79%
Operating Temperature:	-40°C ~ 85°C
Features:	Remote On/Off, SCP, UVLO
Applications:	Medical
Voltage - Isolation:	1kV
Power (Watts):	2W
Series:	PG02S
Voltage - Output 3:	--
Voltage - Output 2:	--
Voltage - Output 1:	12V
Voltage - Input (Max):	75V
Voltage - Input (Min):	36V
Number of Outputs:	1
Type:	Isolated Module
Part Status:	Active
Packaging:	Tube

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Introduction to DC DC Converters

DC–DC converters are electronic devices that are used to convert a DC voltage or current from one DC voltage or current to another. It is also known as a DC-to-DC converter and is often used in various areas, including power supplies, automotive industry, aviation, communications, computers and batteries.

Application Fields of PG02S4812A

The PG02S4812A is a high-efficiency, low noise step-down DC-DC converter, primarily used in devices where a regulated output voltage is required with low noise, low ripple, and high efficiency. It is ideal for use in a variety of applications, such as cameras, laptops, mobile phones, tablets, routers, and other portable devices with USB power, and other low voltage applications where noise has to be minimized.PG02S4812A is able to work reliably in extreme cold or hot temperatures, and its wide input voltage range and input surge current capability make it suitable for use in transportation vehicles, such as buses, cars, motorbikes, ships, and trains. It is also highly durable and corrosion-resistant, making it ideal for use in industrial and medical devices.

Working Principle of PG02S4812A

The PG02S4812A DC-DC converter is based on a switching regulator principle, using an integrated power MOSFET as the main switching element, connected to an adjustable inductive voltage divider. The devices\' two outputs are fed with a stable, regulated voltage, both in the form of a positive and a negative rail. The basic circuitry consists of four transistors, two resistors, and a diode as a synchronous rectifier. The device has a step-down mode in which the input voltage is regulated to a lower value for the output and a step-up mode in which the input voltage is regulated to a higher value for the output. The switchmode regulation works by rapidly switching the MOSFET on and off to regulate the voltage output. As the MOSFET switches, current is alternately directed to and away from the output allowing for smooth output. This switching results in less heat, higher efficiency, and low output voltage ripple as compared to linear regulators.

Conclusion

The PG02S4812A is a high-efficiency, low noise step-down DC-DC converter that is widely used in a variety of applications, including power supplies, automotive industry, aviation, communications, computers, and batteries. Its wide input voltage range, low output voltage ripple, and input surge current capability make it ideal for use in portable devices and transportation vehicles. The working principle of the PG02S4812A is based on a switching regulator principle, making use of a power MOSFET as the main switching element, and works by rapidly switching the MOSFET on and off to regulate the voltage output.

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