Allicdata Part #: | LP2951ACDR2OSCT-ND |
Manufacturer Part#: |
LP2951ACDR2 |
Price: | $ 0.00 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | ON Semiconductor |
Short Description: | IC REG LIN POS ADJ 100MA 8SOIC |
More Detail: | Linear Voltage Regulator IC Positive Fixed or Adju... |
DataSheet: | LP2951ACDR2 Datasheet/PDF |
Quantity: | 1000 |
1 +: | 0.00000 |
Current - Output: | 100mA |
Base Part Number: | LP2951 |
Supplier Device Package: | 8-SOIC |
Package / Case: | 8-SOIC (0.154", 3.90mm Width) |
Mounting Type: | Surface Mount |
Operating Temperature: | -40°C ~ 125°C |
Protection Features: | Over Current, Over Temperature |
Control Features: | -- |
PSRR: | -- |
Current - Supply (Max): | 12mA |
Current - Quiescent (Iq): | 120µA |
Series: | -- |
Voltage Dropout (Max): | 0.45V @ 100mA |
Voltage - Output (Max): | 30V |
Voltage - Output (Min/Fixed): | 1.235V (5V) |
Voltage - Input (Max): | 30V |
Number of Regulators: | 1 |
Output Type: | Adjustable (Fixed) |
Output Configuration: | Positive |
Part Status: | Obsolete |
Packaging: | Cut Tape (CT) |
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Linear Voltage Regulators are a type of Power Management Integrated Circuit (PMIC) used to provide a stable, constant output voltage from a fluctuating input voltage. The LP2951ACDR2 is a particular such voltage regulator with two separate outputs, both of which can provide an output up to 1.2A. It is well suited for automotive, portable, internet of things (IoT) and industrial applications for regulating power inputs from a wide range of voltage sources. This article will explore the applications of the LP2951ACDR2 and its working principle.
Applications
The LP2951ACDR2 is suitable for use in specific situations such as those listed below:
- Automotive Power Systems – The LP2951ACDR2 is designed to efficiently operate under extreme temperature and voltage conditions, allowing it to be used in automotive power systems where the input voltage can vary. The output also remains stable within a wide temperature range, achieving a thermal stability of ±0.005%.
- Portable Applications – The LP2951ACDR2 is capable of regulating and supplying power to multiple loads in portable applications such as tablets and smartphones. The two separate outputs allows the device to power two separate loads, or the same load twice.
- IoT Devices and Sensors – Because of its size and low power consumption, the LP2951ACDR2 is a good choice for powering small IoT devices and sensors, as it is capable of regulating both AC and DC input voltages from a wide range.
- Industrial Systems – The device is less susceptible to transient voltage changes, making it suitable for industrial systems such as those found in factories, warehouses, and other large industrial complexes.
The LP2951ACDR2 has a maximum current output of 1.2A, a maximum input voltage of 28V, and a maximum dropout voltage of 1.1V. It can also provide an output voltage of between 1.2V and 37V, making it a very versatile voltage regulator. The LP2951ACDR2 also features built in current limiting and thermal shutdown, ensuring that it’s protected from overcurrent and overheating.
Working Principle
The LP2951ACDR2 consists of two separate voltage regulator blocks, each built around an LM358 integrated circuit operating in a negative feedback configuration. The two blocks are connected in serial, with their outputs combined to create the final output voltage. The voltage is determined by a voltage divider consisting of an adjustable resistor and a fixed resistor of known resistance. This divider will adjust the output voltage and the feedback will ensure that the output voltage remains stable.
The input voltage is supplied to the first voltage regulator block, which is responsible for regulating the voltage down to the reference voltage. This reference voltage is then inputted to the second block, which will adjust the output voltage to create the desired output. To ensure a stable output voltage, a feedback loop is established between the output voltage and the input reference voltage. In order for the regulator to maintain the desired output voltage, the feedback must be monitored constantly and any deviation is then adjusted accordingly.
The LP2951ACDR2 is designed to provide efficient and reliable power regulation in a wide range of environments. It is capable of regulating both AC and DC input voltages, withstanding extreme temperatures and transient voltage changes, and providing a stable output voltage. The LP2951ACDR2 is a versatile voltage regulator that can be used in several different applications.
The specific data is subject to PDF, and the above content is for reference
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