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LM2937IMP-3.3
IC REG LIN 3.3V 400MA SOT223-4
- メーカー
- Mfr。パート #LM2937IMP-3.3
- パッケージ SOT-223 (DCY)-4
- データシート
- 在庫中3146
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仕様
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Not For New Designs |
| OutputConfiguration | Positive |
| OutputType | Fixed |
| NumberofRegulators | 1 |
| Voltage-Input(Max) | 26V |
| Voltage-Output(Min/Fixed) | 3.3V |
| VoltageDropout(Max) | 1V @ 50mA |
| Current-Output | 400mA |
| Current-Quiescent(Iq) | 2 mA |
| Current-Supply(Max) | 1.25 A |
| ProtectionFeatures | Over Temperature, Reverse Polarity, Short Circuit |
| OperatingTemperature | -40°C ~ 85°C |
| MountingType | Surface Mount |
| Package/Case | TO-261-4, TO-261AA |
概要
Description
The LM2937IMP-3.3 is a low-dropout (LDO) linear voltage regulator designed to provide a stable 3.3V output. It is suitable for applications requiring a regulated 3.3V power supply from a higher voltage input, with a dropout voltage typically around 0.2V at a load current of 500mA, making it efficient for systems with tight voltage margins. The device can supply up to 500mA of output current, making it ideal for powering microcontrollers, sensors, and other low-power devices.
Key features include over-temperature and over-current protection, which enhance its reliability and robustness in various operating conditions. The LM2937IMP-3.3 also offers low quiescent current, contributing to overall energy efficiency, particularly in battery-powered applications. Packaged typically in a small SOT-223 or TO-263 form, it allows for easy implementation in space-constrained designs.
With its combination of performance, protection, and compact size, the LM2937IMP-3.3 is a versatile choice for engineers looking to design reliable power supply solutions in consumer electronics, industrial applications, and automotive systems.
Key features include over-temperature and over-current protection, which enhance its reliability and robustness in various operating conditions. The LM2937IMP-3.3 also offers low quiescent current, contributing to overall energy efficiency, particularly in battery-powered applications. Packaged typically in a small SOT-223 or TO-263 form, it allows for easy implementation in space-constrained designs.
With its combination of performance, protection, and compact size, the LM2937IMP-3.3 is a versatile choice for engineers looking to design reliable power supply solutions in consumer electronics, industrial applications, and automotive systems.
Features
The LM2937IMP-3.3 is a low-dropout (LDO) voltage regulator designed to provide a stable 3.3V output from a higher voltage input. Key features include:
1. Output Voltage: Fixed at 3.3V with high precision.
2. Dropout Voltage: Low dropout voltage of approximately 0.5V at full load, allowing efficient operation with a minimal difference between input and output voltages.
3. Current Capability: Can supply output currents up to 500mA.
4. Thermal Protection: Built-in thermal shutdown to prevent damage from overheating.
5. Overcurrent Protection: Includes internal current limiting to protect against short circuits and overload conditions.
6. Operating Temperature: Suitable for a range of -40°C to +125°C, making it versatile for various applications.
7. Stability: Requires only a minimum output capacitor for stable operation.
8. Line and Load Regulation: Excellent regulation characteristics ensure consistent performance despite variations in input voltage and load.
These features make the LM2937IMP-3.3 ideal for use in battery-powered devices, consumer electronics, and applications requiring a reliable power supply with efficient performance.
1. Output Voltage: Fixed at 3.3V with high precision.
2. Dropout Voltage: Low dropout voltage of approximately 0.5V at full load, allowing efficient operation with a minimal difference between input and output voltages.
3. Current Capability: Can supply output currents up to 500mA.
4. Thermal Protection: Built-in thermal shutdown to prevent damage from overheating.
5. Overcurrent Protection: Includes internal current limiting to protect against short circuits and overload conditions.
6. Operating Temperature: Suitable for a range of -40°C to +125°C, making it versatile for various applications.
7. Stability: Requires only a minimum output capacitor for stable operation.
8. Line and Load Regulation: Excellent regulation characteristics ensure consistent performance despite variations in input voltage and load.
These features make the LM2937IMP-3.3 ideal for use in battery-powered devices, consumer electronics, and applications requiring a reliable power supply with efficient performance.
Package
The LM2937IMP-3.3 is a voltage regulator packaged in a SOT-223 form factor. This surface-mount package is designed for efficient heat dissipation and is commonly used in compact electronic applications.
Pinout
The LM2937IMP-3.3 is a low-dropout voltage regulator with a fixed output voltage of 3.3V. It is typically packaged in an SOT-223 configuration, which has three pins. The pin functions are as follows:
1. Input (Pin 1): This pin receives the input voltage, which should be higher than 3.3V plus the dropout voltage to ensure proper regulation.
2. Ground (Pin 2): This pin is the common ground reference for both the input and output voltages.
3. Output (Pin 3): This pin provides the regulated 3.3V output.
The LM2937IMP-3.3 is designed for use in applications requiring efficient voltage regulation with low dropout characteristics, making it suitable for battery-powered and portable devices.
1. Input (Pin 1): This pin receives the input voltage, which should be higher than 3.3V plus the dropout voltage to ensure proper regulation.
2. Ground (Pin 2): This pin is the common ground reference for both the input and output voltages.
3. Output (Pin 3): This pin provides the regulated 3.3V output.
The LM2937IMP-3.3 is designed for use in applications requiring efficient voltage regulation with low dropout characteristics, making it suitable for battery-powered and portable devices.
Manufacturer
The LM2937IMP-3.3 is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and manufactures a wide range of electronic components and integrated circuits. TI is well-known for its analog chips and embedded processors, which are used in various applications across industries including automotive, industrial, personal electronics, and communications. The company has a reputation for innovation in analog technology and has a significant presence in the global semiconductor market.
Application
The LM2937IMP-3.3 is a low-dropout (LDO) voltage regulator that provides a stable 3.3V output. It is commonly used in applications requiring efficient power management, such as in battery-powered devices, microcontroller-based systems, and communication equipment. Its low dropout voltage makes it ideal for applications with a small voltage difference between input and output, enhancing energy efficiency. Additionally, it is used in automotive electronics, industrial controls, and portable electronics due to its reliability and ability to operate over a wide temperature range.
Equivalent
The LM2937IMP-3.3 is a low-dropout voltage regulator with a fixed 3.3V output. Equivalent products include:
1. MIC2937A-3.3 by Microchip Technology
2. LD1086V33 by STMicroelectronics
3. LT1763CS8-3.3 by Analog Devices
4. NCP1117ST33T3G by ON Semiconductor
These alternatives offer similar functionality with variations in specifications, so always check the datasheets for compatibility with your application.
1. MIC2937A-3.3 by Microchip Technology
2. LD1086V33 by STMicroelectronics
3. LT1763CS8-3.3 by Analog Devices
4. NCP1117ST33T3G by ON Semiconductor
These alternatives offer similar functionality with variations in specifications, so always check the datasheets for compatibility with your application.
出荷
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出荷料参照(DHL/FedEx):
DHL の: 配送費は25ドル〜45ドル(0.5kg)の範囲で、推定配送時間は2〜5営業日です。
フェデックス: 配送費は25ドル〜40ドル(0.5kg)の範囲で、推定配送時間は3〜7営業日。
UPS の: 配送費は25ドル〜45ドル(0.5kg)の範囲で、推定配送時間は3〜7営業日。
TNT社: 配送費は25ドル〜65ドル(0.5kg)の範囲で、推定配送時間は3〜7営業日。
EMS: 配送料金は30〜50ドル(0.5kg)の範囲で、推定配送時間は7〜15営業日です。
登録航空郵便: 配送費は2〜4ドル(0.1kg)で、推定配送時間は5〜20営業日です。
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