SI-8001FDL-TL Integrated Circuits (ICs)

Voltage - Input (Max):	40V
Supplier Device Package:	TO-263-5
Package / Case:	TO-263-6, D²Pak (5 Leads + Tab), TO-263BA
Mounting Type:	Surface Mount
Operating Temperature:	-30°C ~ 85°C (TA)
Synchronous Rectifier:	No
Frequency - Switching:	300kHz
Current - Output:	3.5A
Voltage - Output (Max):	24V
Voltage - Output (Min/Fixed):	0.8V
Series:	--
Voltage - Input (Min):	4.5V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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SI-8001FDL-TL Application Field and Working Principle

The SI-8001FDL-TL is a DC-to-DC switching regulator. Like other DC-to-DC switching regulators, it is used to convert one DC voltage to another. It is commonly used in applications such as microprocessor core voltage adjustment, core voltage bounce prevention, and providing power to peripheral circuits. This specific regulator module is a T-type device with a maximum output current of 8 Amps. It features wide input voltage range of 5.5V to 17V and an adjustable output voltage of between 0.600V to 5.3V. Its temperature range is -40 to +85°C and its minimum start-up voltage is 3.3V. It also offers protection from current overshoot and over heat.The core of the SI-8001FDL-TL is a synchronous rectifier. This is a PWM (pulse-width modulation) based circuit that runs at a high frequency and uses a full bridge circuit for output switching. To adjust the output voltage, this specific module utilizes feedback from the output voltage. The feedback is passed to the difference amplifier, which compares it to the reference voltage. The difference is then passed to the error amplifier, where it can be adjusted to match the output voltage. The resulting error amplifier output is then used to control the duty cycle of the PWM, which in turn sets the output voltage of the device. The SI-8001FDL-TL also features many additional features. These features include output current limit, overvoltage protection, thermal shutdown, undervoltage lockout, current limit, and brown-out protection. In summary, the SI-8001FDL-TL DC-to-DC switching regulator module is a versatile and reliable device which can be used to provide precise voltage levels for microprocessor cores and other components which require voltage regulation. It features a wide input voltage range, an adjustable output voltage, and many additional features which make it an ideal choice for applications requiring power regulation.

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