Allicdata Part #: | LM2940IMP-10/NOPBTR-ND |
Manufacturer Part#: |
LM2940IMP-10/NOPB |
Price: | $ 0.71 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Texas Instruments |
Short Description: | IC REG LINEAR 10V 1A SOT223-4 |
More Detail: | Linear Voltage Regulator IC Positive Fixed 1 Outpu... |
DataSheet: | LM2940IMP-10/NOPB Datasheet/PDF |
Quantity: | 6000 |
1000 +: | $ 0.65133 |
2000 +: | $ 0.60641 |
5000 +: | $ 0.58395 |
Current - Output: | 1A |
Base Part Number: | LM2940 |
Supplier Device Package: | SOT-223-4 |
Package / Case: | TO-261-4, TO-261AA |
Mounting Type: | Surface Mount |
Operating Temperature: | -40°C ~ 85°C |
Protection Features: | Over Current, Over Temperature, Reverse Polarity, Short Circuit |
Control Features: | -- |
PSRR: | 63dB (120Hz) |
Current - Supply (Max): | 15mA |
Current - Quiescent (Iq): | 10mA |
Series: | -- |
Voltage Dropout (Max): | 1V @ 1A |
Voltage - Output (Max): | -- |
Voltage - Output (Min/Fixed): | 10V |
Voltage - Input (Max): | 26V |
Number of Regulators: | 1 |
Output Type: | Fixed |
Output Configuration: | Positive |
Part Status: | Active |
Packaging: | Tape & Reel (TR) |
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LM2940IMP-10/NOPB Voltage Regulator - Application Field and Working Principle
The LM2940IMP-10/NOPB voltage regulator is a low dropout (LDO) linear regulator and one of Texas Instruments’ most efficient products in the power management integrated circuit (PMIC) category. It is designed to provide reliable and high-precision voltage regulation performance and is equipped with various protective features that prevent damage to other circuit components.
Application Field
The LM2940IMP-10/NOPB voltage regulator is suitable for a wide range of applications, including automotive, industrial, and white goods. It can provide precisely regulated voltage levels for CPU, digital signal processor (DSP), and microcontroller units (MCUs) when incorporated into systems composed of logic devices, memories, transistors, and MOSFETS.
The LM2940IMP-10/NOPB voltage regulator is also suitable for powering critical subsystems in PC applications. It features a low ripple-rejection ratio, which reduces interference from system noise, and can be used for a variety of supplies such as 1.5 V, 2.5 V, 3.3 V, and 5 V.
Working Principle
The LM2940IMP-10/NOPB voltage regulator is a low dropout (LDO) linear regulator. In a linear regulator, input voltage is converted to a lower output voltage with the help of a voltage-dropping transistor. This regulator includes a PNP pass transistor and pull-up/pull-down resistive elements that ensure its superior performance.
The LM2940IMP-10/NOPB voltage regulator works on the “load line” principle. This principle states that the output voltage of the regulator is the sum of the voltage at the load line’s intersection point with the voltage drop source\'s operating voltage.
The LM2940IMP-10/NOPB voltage regulator offers an overload protection feature that automatically shuts off power to the device when the load current exceeds its limits. It also has an integrated thermal protection feature which reduces current flow when the IC\'s temperature reaches a certain threshold.
Conclusion
The LM2940IMP-10/NOPB voltage regulator is an efficient and reliable linear regulator for PMIC applications. It offers precise voltage regulation and is equipped with various protective features such as thermal and overload protection. It is a suitable component for a wide range of applications, including automotive, industrial, PC, and white goods.
The specific data is subject to PDF, and the above content is for reference
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