Microchip Technology MIC2940A-12WU
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- MIC2940A-12WU
- Microchip Technology
- IC REG LINEAR 12V 1.25A TO263-3
- PMIC - Voltage Regulators - Linear
- MIC2940A-12WU Datasheet
- TO-263-4, D²Pak (3 Leads + Tab), TO-263AA
- -Reel®
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Lead free / RoHS Compliant - 20402
- Spot Inventory / Athorized Dstributor / Factory Excess Stock
- 1 year quality assurance 》
- Click to get rates
What is MIC2940A-12WU
Microchip Technology Part Number MIC2940A-12WU（PMIC - Voltage Regulators - Linear）, developed and manufactured by Microchip Technology, distributed globally by Jinftry. We distribute various electronic components from world-renowned brands and provide one-stop services, making us a trusted global electronic component distributor.
MIC2940A-12WU is one of the part numbers distributed by Jinftry, and you can learn about its specifications/configurations, package/case, Datasheet, and other information here. Electronic components are affected by supply and demand, and prices fluctuate frequently. If you have a demand, please do not hesitate to send us an RFQ or email us immediately [email protected] Please inquire about the real-time unit price, Data Code, Lead time, payment terms, and any other information you would like to know. We will do our best to provide you with a quotation and reply as soon as possible.
MIC2940A-12WU Specifications
- Part NumberMIC2940A-12WU
- CategoryPMIC - Voltage Regulators - Linear
- ManufacturerMicrochip Technology
- DescriptionIC REG LINEAR 12V 1.25A TO263-3
- Package-Reel®
- Series-
- Operating Temperature-40°C ~ 125°C
- Mounting TypeSurface Mount
- Package / CaseTO-263-4, D²Pak (3 Leads + Tab), TO-263AA
- Supplier Device PackageTO-263-3
- Output TypeFixed
- Voltage - Output (Min/Fixed)12V
- Voltage - Output (Max)-
- Current - Output1.25A
- Output ConfigurationPositive
- Control Features-
- Voltage - Input (Max)26V
- Number of Regulators1
- Voltage Dropout (Max)0.6V @ 1.25A
- Current - Quiescent (Iq)500 µA
- Current - Supply (Max)70 mA
- PSRR-
- Protection FeaturesOver Current, Over Temperature, Reverse Polarity
Application of MIC2940A-12WU
MIC2940A-12WU Datasheet
MIC2940A-12WU Datasheet , -Reel®,-40°C ~ 125°C,Surface Mount,TO-263-4, D²Pak (3 Leads + Tab), TO-263AA,TO-263-3,Fixed,12V,1.25A,Positive,26V,1,0.6V @ 1.25A,500 µA,70 mA,Over Current, Over Temperature, Reverse Polarity
MIC2940A-12WU Classification
PMIC - Voltage Regulators - Linear
FAQ about PMIC - Voltage Regulators - Linear
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1. What are the characteristics of linear regulators?
Linear regulators have the characteristics of low cost, small package, few peripheral devices and low noise. There are many types of linear regulator packages, which are very suitable for use in LCD color TVs. For fixed voltage output applications, only 2-3 small capacitors are needed to form the entire solution. Ultra-low output voltage noise is the biggest advantage of linear regulators. The output voltage ripple is less than 35V (RMS), and it has an extremely high signal-to-noise control ratio, which is very suitable for powering small signal processing circuits that are sensitive to noise.
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2. What problems will linear regulators bring to the circuit?
The problems that linear regulators bring to the circuit mainly include low efficiency and a lot of heat.
Linear The main working principle of the voltage regulator is to control the output voltage of the transistor through a current amplifier to keep the output voltage stable. This working mode causes the linear regulator to control the regulating tube through a differential voltage when adjusting the output voltage. The control tube needs to absorb part of the input voltage, which makes the efficiency of the linear regulator relatively low. In practical applications, this means that the linear regulator will convert the difference between the input voltage and the output voltage into heat energy, causing serious heating of the device, especially when the input and output voltage difference is large, this power loss will further increase, causing the device to heat up. -
3. Which is better, switching power supply or linear regulator?
Switching power supply and linear regulator each have their advantages and disadvantages, and choosing which one is better depends on the specific application requirements.
The main advantages of switching power supply include:
High efficiency: The conversion efficiency of switching power supply can reach 90%~95%, which is much higher than the 30% or so of linear regulator.
Small size and light weight: Due to the high efficiency and high-efficiency transformer of switching power supply, large heat sink can be omitted, and high-frequency transformer replaces power frequency transformer, greatly reducing volume and weight.
Wide voltage regulation range: The output voltage of switching power supply can compensate for the change of input voltage by adjusting the duty cycle to ensure stable output voltage.
Various circuit forms: Designers can design switching power supplies that meet the needs according to different application scenarios.
However, switching power supplies also have so
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