SI-8050JD 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 ~ 125°C (TJ)
Synchronous Rectifier:	No
Frequency - Switching:	125kHz
Current - Output:	1.5A
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	5V
Series:	--
Voltage - Input (Min):	8V
Number of Outputs:	1
Output Type:	Fixed
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tape & Reel (TR)

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PMIC Voltage Regulators DC DC Switching RegulatorsThe SI-8050JD is an integrated switch mode voltage regulator belonging to a particular family of low-cost DC to DC regulators. This type of device is used whenever input and/or output voltages and/or currents need to be regulated to specific levels. It is also well-suited for applications that require a combination of high efficiency, low voltage dropout and high power density. The basic circuitry of a switch mode regulator can be broken down into the switching regulator section and the feedback control section. The switching regulator section contains a power switch, an inductor, and an output filter. This section takes incoming power from the input side and converts it into regulated output at the output side. It does this by means of “pulsed” power delivery. The input voltage is converted into a voltage spike that is used to “drive” the output. The feedback control section consists of a voltage reference, an error amplifier, an oscillator, a current limit and a power limiting circuit. The voltage reference provides the switching regulator with a stable reference voltage. The error amplifier compares the voltage on the output with the reference voltage and provides a feedback signal which is used to adjust the switching regulator’s duty cycle (i.e. the amount of time the power switch is on). The oscillator is used to control the frequency of the power switching pulses and the current limit and power limiting circuits are used to provide protection against over-current and over-power conditions.The SI-8050JD is a single input, adjustable output voltage switch mode voltage regulator. The output voltage of the SI-8050JD can be adjusted from 0.8V up to 6V with a resolution of up to 0.2V. The output current is rated at up to 1.5A which is enough for most power management applications. It also has a over-current protection and thermal shutdown capability. In addition to its voltage control capabilities, the SI-8050JD can also be used in current control mode. This allows the output current to be kept constant even if the input voltage or the load conditions vary. It also enables the device to be used in applications such as LED lighting. The SI-8050JD has a wide range of applications and is suitable for use in a variety of DC to DC power management circuits. It’s best suited for applications that require low voltage dropouts and high power densities such as LED lighting, mobile phones, digital video recorders and embedded systems. Overall, the SI-8050JD is a very versatile and cost-effective solution for high-power applications. It has the capability to provide a regulated output voltage along with adjustable current control for applications where high efficiency and power density are needed. It’s also very user-friendly and simple to integrate into existing systems.

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