Factory Supply Intel Integrated Circuit - LP87524BRNFRQ1 VQFN-HR26 Components New Original Tested Integrated Circuit Chip IC LP87524BRNFRQ1 – Yingnuode

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Factory Supply Intel Integrated Circuit - LP87524BRNFRQ1 VQFN-HR26 Components New Original Tested Integrated Circuit Chip IC LP87524BRNFRQ1 – Yingnuode Detail:

Product Attributes

TYPE	DESCRIPTION
Category	Integrated Circuits (ICs) PMIC Voltage Regulators – DC DC Switching Regulators
Mfr	Texas Instruments
Series	Automotive, AEC-Q100
Package	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®
SPQ	3000 T&R
Product Status	Active
Function	Step-Down
Output Configuration	Positive
Topology	Buck
Output Type	Programmable
Number of Outputs	4
Voltage – Input (Min)	2.8V
Voltage – Input (Max)	5.5V
Voltage – Output (Min/Fixed)	0.6V
Voltage – Output (Max)	3.36V
Current – Output	4A
Frequency – Switching	4MHz
Synchronous Rectifier	Yes
Operating Temperature	-40°C ~ 125°C (TA)
Mounting Type	Surface Mount, Wettable Flank
Package / Case	26-PowerVFQFN
Supplier Device Package	26-VQFN-HR (4.5×4)
Base Product Number	LP87524

The function of a converter

A converter is a device that converts a signal into another signal. A signal is a form or carrier of information that exists, and in automatic instrumentation equipment and automatic control systems, a signal is often converted into another signal that is compared with a standard or reference quantity to link the two types of instrumentation together, so the converter is often the intermediate link between two instruments (or devices).

How to buck converters work

A buck converter is a switch mode power supply, a class of device that contains a switch (usually a MOSFET) to quickly turn the circuit on and off, this fast switching produces a square wave, if the duty cycle of the switch is set to 50%, i.e. the switch is on 50% of the time, the average voltage will be 50% of the input.

The square wave needs to be smoothed to provide useful power and often inductors and capacitors are used in series to achieve this function. This combination is known as an LC low-pass filter, where the characteristics of the inductor smooth out the current and the capacitor resists sudden changes in voltage. The combined effect produces a relatively smooth voltage output with a low ripple. For example, if the input voltage is 10V and the switch uses a 50% duty cycle, the output voltage will be 5V.

Another necessary component of a buck converter is a diode or other switch connected in parallel with an inductor. This is to compensate for the function of the inductor, where the current in the inductor cannot be changed instantaneously, protecting the switching tubes from damage by overload.

The buck converter also contains additional circuitry to ensure a stable output voltage. The converter uses a closed-loop control scheme with negative feedback to monitor the voltage output and dynamically adjust the duty cycle of the switches to regulate the output voltage.

Design considerations for buck converters

buck converters are very efficient, with some devices achieving efficiencies in excess of 95%.

buck converters are more cost-effective than linear regulators at high power levels, where the cooling cost of a linear regulator may be less than the cost of using a buck converter

the output of a buck converter contains noise, which means that the output of a linear regulator is more stable and better suited to applications requiring low output noise

linear regulators can respond quickly to input and output changes compared to buck converters.

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