Allicdata Part #: | 576-1066-ND |
Manufacturer Part#: |
MIC2178YWM |
Price: | $ 3.97 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Microchip Technology |
Short Description: | IC REG BUCK ADJ 2.5A 20SOIC |
More Detail: | Buck Switching Regulator IC Positive Adjustable 1.... |
DataSheet: | MIC2178YWM Datasheet/PDF |
Quantity: | 3 |
1 +: | $ 3.60990 |
25 +: | $ 3.00434 |
Specifications
Series: | -- |
Packaging: | Tube |
Part Status: | Active |
Function: | Step-Down |
Output Configuration: | Positive |
Topology: | Buck |
Output Type: | Adjustable |
Number of Outputs: | 1 |
Voltage - Input (Min): | 4.5V |
Voltage - Input (Max): | 16.5V |
Voltage - Output (Min/Fixed): | 1.245V |
Voltage - Output (Max): | 16.5V |
Current - Output: | 2.5A |
Frequency - Switching: | 200kHz |
Synchronous Rectifier: | No |
Operating Temperature: | -40°C ~ 125°C (TJ) |
Mounting Type: | Surface Mount |
Package / Case: | 20-SOIC (0.295", 7.50mm Width) |
Supplier Device Package: | 20-SOIC |
Base Part Number: | MIC2178 |
Description
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Overview
The MIC2178YWM is a three-terminal, adjustable, low-dropout voltage regulator. This device employs a low resistance P-channel MOSFET in series with a precision reference to deliver excellent line and load regulation over a wide range of input and output voltages. It operates from an input voltage as low as 3V and up to 30V, allowing it to work with a variety of system power supplies. This device is designed to perform as a low-noise power stage for battery-powered applications, in addition to a large number of other applications that require a stable and adjustable voltage from the same voltage source.Application Field
The MIC2178YWM is a versatile and robust low dropout regulator (LDO) and can be applied in a broad range of application fields. The low output noise and high PSRR performance of the device make it a perfect choice for many audio applications, enabling crystal-clear and low background noise in audio reproduction equipment. The device is also suitable for RF applications, where its low noise operation ensures good reception, while the high PSRR ensures a low noise floor during operation. The device can be used in battery powered or automotive applications where its low quiescent current and high current delivery at a low input voltage ensure long battery life and low power consumption. Furthermore, the device can also be used in LED Lighting applications, where its high switching frequency and small form factor make it ideal for compact designs. Lastly, the device can be applied in many other applications such as HVAC systems, UAVs, and power converters, where its high efficiency, low noise and wide operating range make it a perfect choice for improved reliability and performance.Working Principle
The MIC2178YWM operates by taking the input voltage (Vin) and regulating it to the desired output voltage (Vout). This is done by employing a low resistance N-channel MOSFET switch in series with a precision reference. When the output voltage falls below the set point, the MOSFET is turned on and the voltage is regulated to the desired level. When the output voltage reaches the set point, the MOSFET is turned off, thereby regulating the output to the required voltage level.The device also has protection features, such as over-current protection, output short circuit protection, reverse battery protection and thermal protection. The over-current protection is provided by the MOSFET switch, which will open automatically in case of an overload. The output short circuit protection is provided by the precision reference and the MOSFET switch. The reverse battery protection is provided by the integrated protection circuit and thermal protection is provided by the built-in thermal shutdown circuit.Conclusion
The MIC2178YWM is an adjustable, low dropout voltage regulator intended for a wide range of applications. It is well-suited for use in audio applications, RF applications, LED lighting, HVAC systems, UAVs, and power converters. The device has excellent line and load regulation, providing stable output voltage over a wide range of input and output voltages. It also features protection features such as over-current protection, output short circuit protection, reverse battery protection and thermal protection, making it ideal for applications requiring higher derating and robustness.The specific data is subject to PDF, and the above content is for reference
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