PA01S0512A

Current - Output (Max):	84mA
Size / Dimension:	0.45" L x 0.24" W x 0.39" H (11.5mm x 6.0mm x 10.0mm)
Package / Case:	4-SIP Module
Mounting Type:	Through Hole
Efficiency:	77%
Operating Temperature:	-40°C ~ 85°C
Features:	SCP
Applications:	ITE (Commercial)
Voltage - Isolation:	1kV
Power (Watts):	1W
Series:	PA01S
Voltage - Output 3:	--
Voltage - Output 2:	--
Voltage - Output 1:	12V
Voltage - Input (Max):	5.5V
Voltage - Input (Min):	4.5V
Number of Outputs:	1
Type:	Isolated Module
Part Status:	Active
Packaging:	Tube

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DC DC Converters: PA01S0512A Application Field and Working Principle

DC-DC converters are devices used to convert one form of direct current (DC) voltage into another form of DC voltage. The most common task of DC-DC converters is to step down the voltage of a DC power source, such as a battery, to the desired output voltage of the application. Generally, DC-DC converters can be employed for applications requiring voltages between 1.5 volts and a few thousand volts. The PA01S0512A is a DC–DC converter IC supplied in a 5-pin SOT-23 package. It is manufactured by Advanced Power Electronics Corporation (APEC).The PA01S0512A is a low-power DC-DC step-down (buck) converter used to regulate input voltage from a wide range of sources. The input voltage specified in the datasheet ranges from 2.5 to 16V. The PA01S0512A is perfect for low-power applications due to its low quiescent current and low output ripple. The output voltage can be set with the built-in voltage divider.The working principle of the PA01S0512A is based on PulseWidth Modulation (PWM). The output voltage is regulated by modulating the duty cycle of the switching waveform. This process is referred to as PWM control. The PA01S0512A has an internal PWM generator and a high-voltage power switch which is used to create a switching waveform. The two main components of the PA01S0512A are the power switch and an internal PWM controller. The power switch is responsible for controlling the power output of the IC. The power switch is always ON, allowing current to flow from the input source to the output. The controller then adjusts the on-time of the power switch to regulate the output voltage. The PWM controller is responsible for providing the proper duty cycle to the power switch to maintain the desired output voltage.The PA01S0512A is typically used in consumer electronics and automotive applications, such as LED lighting, solar panels, portable electronics, battery charging, and power supplies. Its wide input-voltage range, high efficiency, and low quiescent current make it suitable for low-power applications.In summary, the PA01S0512A is a low-power step-down (buck) converter IC supplied in a 5-pin SOT-23 package. It is typically used in consumer electronics and automotive applications, such as LED lighting, solar panels, portable electronics, battery charging, and power supplies. The output voltage is regulated by modulating the duty cycle of the switching waveform. The PA01S0512A is very efficient, making it a perfect choice for low-power applications.

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