LDFMPUR Allicdata Electronics

LDFMPUR Integrated Circuits (ICs)

Allicdata Part #:

497-15592-2-ND

Manufacturer Part#:

LDFMPUR

Price: $ 0.39
Product Category:

Integrated Circuits (ICs)

Manufacturer: STMicroelectronics
Short Description: IC REG LINEAR POS ADJ 500MA 6DFN
More Detail: Linear Voltage Regulator IC Positive Adjustable 1 ...
DataSheet: LDFMPUR datasheetLDFMPUR Datasheet/PDF
Quantity: 1000
3000 +: $ 0.34398
6000 +: $ 0.32678
15000 +: $ 0.31450
Stock 1000Can Ship Immediately
$ 0.39
Specifications
Voltage Dropout (Max): 0.3V @ 500mA
Supplier Device Package: 6-DFN (3x3)
Package / Case: 6-VDFN Exposed Pad
Mounting Type: Surface Mount
Operating Temperature: -40°C ~ 125°C
Protection Features: Over Current, Over Temperature, Under Voltage Lockout (UVLO)
Control Features: Enable, Power Good
PSRR: 62dB ~ 55dB (120Hz ~ 10kHz)
Current - Quiescent (Iq): 800µA
Current - Output: 500mA
Series: --
Voltage - Output (Max): 12V
Voltage - Output (Min/Fixed): 0.8V
Voltage - Input (Max): 16V
Number of Regulators: 1
Output Type: Adjustable
Output Configuration: Positive
Part Status: Active
Packaging: Tape & Reel (TR) 
Description

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Linear Dropout Fixed Output Regulator (LDFMPUR) is a type of linear volatage regulator (VR) used in several and varied applications, from low power to medium power switching. They are designed to provide a constant, low-voltage output, regardless of the input voltage, in order to provide clean, reliable power to a variety of electronic systems. The key mechanism employed in LDFMPURs is their dynamic dropout voltage, which is the amount of voltage that must be present across the input of the VR in order for it to continue to provide a constant output voltage. A dynamic dropout voltage allows the LDFMPUR to be able to operate in a wide variety of circumstances, providing an ideal regime for electronic systems that require low-voltage regulation.

Application Fields

LDFMPURs are applied in a variety of fields, some of the most common being in automotive electronics, where their ability to maintain low-voltage output is ideal for the dynamic demands of specialized components. For example, in engine control systems, LDFMPURs are used to regulate the input voltage of the ECU in order to prevent malfunctions due to transient power fluctuations. LDFMPURs are also applied in consumer electronics, providing a low-voltage power supply for low-power devices such as LCD displays, audio amplifiers, and sensors.

LDFMPURs are also popular in aerospace and military applications, as their dropout voltage and power efficiency allows them to provide clean, reliable power for high-performance systems in a wide variety of harsh environments, from extreme temperatures to high-vibration levels. They are also used in medical applications, where their low dropout voltages allow them to maintain a constant, low-voltage power supply.

Working Principle

The working principle of a LDFMPUR is simple: it acts as a switch, turning on when the input voltage is greater than the desired output voltage, and allowing current to flow through the device until the input voltage drops below the output voltage. At this point, the LDFMPUR will shut off and not allow current to flow, thereby limiting the output voltage to the desired value. The dynamic dropout voltage of the LDFMPUR is the amount of voltage below the output value that the LDFMPUR must “drop out” before it will no longer allow current to flow.

The dynamic dropout voltage of the LDFMPUR is controlled by a precise feedback loop, which constantly monitors the output of the device and adjusts the dropout voltage accordingly. If the input voltage is higher than the desired output voltage, the LDFMPUR will “drop out” at a lower voltage, allowing more current to flow and providing more precise regulation of the output voltage.

Conclusion

Linear Dropout Fixed Output Regulator (LDFMPUR) is a type of linear volatage regulator (VR) used in a wide range of applications, from automotive electronics to aerospace and military applications. Their dynamic dropout voltage and high power efficiency is the key to their success, providing a constant, low-voltage output, regardless of the input voltage, and allowing them to provide clean, reliable power to a variety of electronic systems.

The specific data is subject to PDF, and the above content is for reference

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