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LP3878MRX-ADJ
+BOMIC REG LIN POS ADJ 800MA 8SO
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メーカーSTマイクロエレクトロニクス
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メーカー品番 #LP3878MRX-ADJ
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パッケージ HSOIC EP-8
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在庫状況5004
365 日間品質保証
7*24 日間の品質保証
90-時間単位のサービス保証
1日間のアフターサービス保証
仕様
| 属性 | 値 |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Obsolete |
| OutputConfiguration | Positive |
| OutputType | Adjustable |
| NumberofRegulators | 1 |
| Voltage-Input(Max) | 16V |
| Voltage-Output(Min/Fixed) | 1V |
| Voltage-Output(Max) | 5.5V |
| VoltageDropout(Max) | 1.1V @ 800mA |
| Current-Output | 800mA |
| Current-Quiescent(Iq) | 1.5 mA |
| Current-Supply(Max) | 15 mA |
| PSRR | 60dB (1kHz) |
| ControlFeatures | Enable |
| ProtectionFeatures | Over Current, Over Temperature, Short Circuit |
| OperatingTemperature | -40°C ~ 125°C |
| MountingType | Surface Mount |
| Package/Case | 8-PowerSOIC (0.154, 3.90mm Width) |
概要
Description
The LP3878MRX-ADJ is a high-performance, low-dropout (LDO) voltage regulator designed for applications requiring precise voltage regulation and efficiency. It is part of Texas Instruments' LP3878 family, known for its stable output voltage and low noise performance. The "ADJ" in its designation indicates that it has an adjustable output, allowing users to set the desired output voltage for specific applications.
Key features of the LP3878MRX-ADJ include a dropout voltage as low as 0.5V at full load, a wide input voltage range, and a maximum output current capability of up to 800mA. This makes it suitable for powering sensitive electronics where stability and efficiency are critical, such as in communication devices, instrumentation, and portable equipment.
The device also offers protection features like current limiting and thermal shutdown, enhancing reliability and safety. It comes in a surface-mount package, which is ideal for space-constrained designs. Overall, the LP3878MRX-ADJ provides a versatile and robust solution for power regulation in various electronic applications.
Key features of the LP3878MRX-ADJ include a dropout voltage as low as 0.5V at full load, a wide input voltage range, and a maximum output current capability of up to 800mA. This makes it suitable for powering sensitive electronics where stability and efficiency are critical, such as in communication devices, instrumentation, and portable equipment.
The device also offers protection features like current limiting and thermal shutdown, enhancing reliability and safety. It comes in a surface-mount package, which is ideal for space-constrained designs. Overall, the LP3878MRX-ADJ provides a versatile and robust solution for power regulation in various electronic applications.
Equivalent
The LP3878MRX-ADJ is a low-dropout (LDO) adjustable voltage regulator. Equivalent products typically include other LDO regulators with similar specifications. Some alternatives are:
1. Microchip MCP1825S - Offers similar current and voltage regulation.
2. Texas Instruments TPS7A4700 - Known for low noise and high power supply rejection.
3. ON Semiconductor NCP1117 - A common adjustable LDO with similar features.
4. Analog Devices ADP3330 - Provides high accuracy and low dropout voltage.
Always confirm specific electrical characteristics and pin compatibility when selecting an equivalent.
1. Microchip MCP1825S - Offers similar current and voltage regulation.
2. Texas Instruments TPS7A4700 - Known for low noise and high power supply rejection.
3. ON Semiconductor NCP1117 - A common adjustable LDO with similar features.
4. Analog Devices ADP3330 - Provides high accuracy and low dropout voltage.
Always confirm specific electrical characteristics and pin compatibility when selecting an equivalent.
Features
The LP3878MRX-ADJ is a high-performance adjustable linear voltage regulator. Key features include:
1. Output Voltage: Adjustable via external resistors, typically ranging from 1.25V to 13.8V.
2. Output Current: Capable of delivering up to 800mA.
3. Low Dropout Voltage: Ensures efficient operation with a dropout voltage of approximately 120mV at 100mA load.
4. High Precision: Offers an output voltage accuracy of ±1.5% across line, load, and temperature variations.
5. Thermal Protection: Integrated thermal shutdown to prevent overheating.
6. Current Limiting: Features built-in current limiting for protection against overcurrent conditions.
7. Stability: Operates with low ESR capacitors, ensuring stability.
8. Low Noise: Provides a low noise output for sensitive applications.
9. Package: Available in a surface-mount package, suitable for compact designs.
10. Applications: Ideal for use in battery-powered devices, portable electronics, and applications requiring efficient voltage regulation.
These features make the LP3878MRX-ADJ suitable for a wide range of applications requiring reliable and precise voltage regulation.
1. Output Voltage: Adjustable via external resistors, typically ranging from 1.25V to 13.8V.
2. Output Current: Capable of delivering up to 800mA.
3. Low Dropout Voltage: Ensures efficient operation with a dropout voltage of approximately 120mV at 100mA load.
4. High Precision: Offers an output voltage accuracy of ±1.5% across line, load, and temperature variations.
5. Thermal Protection: Integrated thermal shutdown to prevent overheating.
6. Current Limiting: Features built-in current limiting for protection against overcurrent conditions.
7. Stability: Operates with low ESR capacitors, ensuring stability.
8. Low Noise: Provides a low noise output for sensitive applications.
9. Package: Available in a surface-mount package, suitable for compact designs.
10. Applications: Ideal for use in battery-powered devices, portable electronics, and applications requiring efficient voltage regulation.
These features make the LP3878MRX-ADJ suitable for a wide range of applications requiring reliable and precise voltage regulation.
Pinout
The LP3878MRX-ADJ is a low-dropout (LDO) linear voltage regulator. It typically comes in an 8-pin SOIC (Small Outline Integrated Circuit) package. Here’s a concise description of its pin functions:
1. VIN: Input voltage supply pin. Connect to the higher voltage that needs to be regulated.
2. VOUT: Output voltage pin. Provides the regulated voltage to the load.
3. ADJ: Adjust pin. Used to set the output voltage in conjunction with two external resistors.
4. GND: Ground pin. Common ground for the input and output.
5. EN: Enable pin. Used to turn the regulator on or off. Typically, a high signal enables the regulator.
6. SS: Soft-start pin. Allows for controlled ramp-up of output voltage to minimize inrush current.
7. SD: Shutdown pin. An alternative or additional method to disable the regulator.
8. NC: No connection. This pin may be physically present but is not electrically connected within the device.
The LP3878MRX-ADJ is designed for applications requiring high power supply rejection ratios and low noise, making it suitable for sensitive analog circuits.
1. VIN: Input voltage supply pin. Connect to the higher voltage that needs to be regulated.
2. VOUT: Output voltage pin. Provides the regulated voltage to the load.
3. ADJ: Adjust pin. Used to set the output voltage in conjunction with two external resistors.
4. GND: Ground pin. Common ground for the input and output.
5. EN: Enable pin. Used to turn the regulator on or off. Typically, a high signal enables the regulator.
6. SS: Soft-start pin. Allows for controlled ramp-up of output voltage to minimize inrush current.
7. SD: Shutdown pin. An alternative or additional method to disable the regulator.
8. NC: No connection. This pin may be physically present but is not electrically connected within the device.
The LP3878MRX-ADJ is designed for applications requiring high power supply rejection ratios and low noise, making it suitable for sensitive analog circuits.
Manufacturer
The LP3878MRX-ADJ is manufactured by Texas Instruments. Texas Instruments (TI) is a global technology company that designs and manufactures semiconductors and integrated circuits for a wide range of electronic applications. Established in 1930 and headquartered in Dallas, Texas, TI produces products that are used in various sectors, including industrial, automotive, personal electronics, and communications equipment. The company is well-known for its innovations in analog technology, embedded processing, and digital light processing (DLP).
Application
The LP3878MRX-ADJ is a low-dropout linear voltage regulator commonly used in applications requiring efficient power management. Its application areas include powering microprocessors and microcontrollers in embedded systems, supplying stable voltage for communication devices, and regulating power in consumer electronics. It is also utilized in industrial and automotive electronics for its ability to provide precise voltage regulation. The LP3878MRX-ADJ is suitable for battery-powered devices due to its low dropout voltage and high-efficiency performance, ensuring prolonged battery life. Additionally, it is used in applications where thermal performance is critical, thanks to its thermal protection features.
Package
The LP3878MRX-ADJ is a low-dropout voltage regulator from Texas Instruments. It comes in a surface-mount, 8-pin, PowerPAD™ SOIC (Small Outline Integrated Circuit) package, which is designed for improved thermal performance.
