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LD2981ABU33TR
+BOMIC REG LINEAR 3.3V 100MA SOT89-3
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Nhà sản xuấtSTMicroelectronics
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Ông. Phần #LD2981ABU33TR
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Bảng dữ liệu LD2981ABU33TR DataSheet
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Gói SOT-89
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Có sẵn5510
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Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| OutputConfiguration | Positive |
| OutputType | Fixed |
| NumberofRegulators | 1 |
| Voltage-Input(Max) | 16V |
| Voltage-Output(Min/Fixed) | 3.3V |
| VoltageDropout(Max) | 0.375V @ 100mA |
| Current-Output | 100mA |
| Current-Quiescent(Iq) | 150 µA |
| Current-Supply(Max) | 2.6 mA |
| PSRR | 63dB (1kHz) |
| ProtectionFeatures | Over Current, Over Temperature |
| OperatingTemperature | -40°C ~ 125°C |
| MountingType | Surface Mount |
| Package/Case | TO-243AA |
Tổng quan
Description
The LD2981ABU33TR is a low-dropout (LDO) linear voltage regulator. It is designed to provide a stable output voltage of 3.3V with a maximum output current of 100mA. The device features a low quiescent current, which makes it ideal for battery-powered applications. The "ABU33" in its name indicates the specific output voltage configuration, while "TR" denotes tape and reel packaging for manufacturing and assembly purposes.
Key features of the LD2981ABU33TR include:
1. Low Dropout Voltage: This allows for efficient operation even when the input voltage is close to the output voltage.
2. Low Quiescent Current: Minimizes power consumption when the regulator is not fully loaded.
3. Protection mechanisms: Includes thermal shutdown and current limit to protect the device and the load under fault conditions.
This regulator is commonly used in portable electronics, consumer devices, and any application requiring efficient voltage regulation with minimal energy loss. Its small footprint and efficient performance make it a popular choice for integrated circuit designs.
Key features of the LD2981ABU33TR include:
1. Low Dropout Voltage: This allows for efficient operation even when the input voltage is close to the output voltage.
2. Low Quiescent Current: Minimizes power consumption when the regulator is not fully loaded.
3. Protection mechanisms: Includes thermal shutdown and current limit to protect the device and the load under fault conditions.
This regulator is commonly used in portable electronics, consumer devices, and any application requiring efficient voltage regulation with minimal energy loss. Its small footprint and efficient performance make it a popular choice for integrated circuit designs.
Equivalent
The LD2981ABU33TR is a low-dropout (LDO) voltage regulator. Equivalent products with similar specifications include:
1. MIC5209-3.3YM from Microchip Technology
2. LP2981-33DBVR from Texas Instruments
3. NCP5501DT33RKG from ON Semiconductor
These alternatives should match key parameters such as output voltage, current rating, and dropout voltage. Always verify specific requirements for your application before selecting a replacement.
1. MIC5209-3.3YM from Microchip Technology
2. LP2981-33DBVR from Texas Instruments
3. NCP5501DT33RKG from ON Semiconductor
These alternatives should match key parameters such as output voltage, current rating, and dropout voltage. Always verify specific requirements for your application before selecting a replacement.
Features
The LD2981ABU33TR is a low-dropout (LDO) voltage regulator known for its efficiency and compact design. Key features include:
1. Low Dropout Voltage: It offers a dropout voltage of typically 100 mV at low load currents, which is beneficial for applications requiring minimal voltage loss.
2. Output Voltage: The regulator provides a fixed output voltage of 3.3V, suitable for many low-voltage digital circuits.
3. Current Capability: It can deliver output currents up to 100 mA.
4. Low Quiescent Current: It has a low quiescent current, making it energy efficient, ideal for battery-powered devices.
5. Stability: Requires only a small output capacitor for stability, enhancing design flexibility.
6. Protection Features: Includes internal current limit and thermal shutdown, ensuring protection against overload and overheating conditions.
7. Package: It typically comes in a compact SOT-89 package, suitable for space-constrained applications.
8. Applications: Commonly used in portable electronics, telecommunications, and any application that demands efficient power regulation.
This combination of features makes the LD2981ABU33TR a versatile choice for low-power and compact electronic designs.
1. Low Dropout Voltage: It offers a dropout voltage of typically 100 mV at low load currents, which is beneficial for applications requiring minimal voltage loss.
2. Output Voltage: The regulator provides a fixed output voltage of 3.3V, suitable for many low-voltage digital circuits.
3. Current Capability: It can deliver output currents up to 100 mA.
4. Low Quiescent Current: It has a low quiescent current, making it energy efficient, ideal for battery-powered devices.
5. Stability: Requires only a small output capacitor for stability, enhancing design flexibility.
6. Protection Features: Includes internal current limit and thermal shutdown, ensuring protection against overload and overheating conditions.
7. Package: It typically comes in a compact SOT-89 package, suitable for space-constrained applications.
8. Applications: Commonly used in portable electronics, telecommunications, and any application that demands efficient power regulation.
This combination of features makes the LD2981ABU33TR a versatile choice for low-power and compact electronic designs.
Pinout
The LD2981ABU33TR is a low-dropout voltage regulator designed to provide a fixed output voltage of 3.3V. It typically comes in a SOT-89 package. This package generally has three pins, which are configured as follows:
1. Pin 1 (GND): Ground pin, connected to the negative side of the power supply.
2. Pin 2 (Output): Provides the regulated output voltage (3.3V in this case).
3. Pin 3 (Input): Connected to the unregulated input voltage source.
The LD2981 series is known for its low dropout voltage, low quiescent current, and good line and load regulation characteristics. It is suitable for battery-powered applications due to its efficient power usage.
1. Pin 1 (GND): Ground pin, connected to the negative side of the power supply.
2. Pin 2 (Output): Provides the regulated output voltage (3.3V in this case).
3. Pin 3 (Input): Connected to the unregulated input voltage source.
The LD2981 series is known for its low dropout voltage, low quiescent current, and good line and load regulation characteristics. It is suitable for battery-powered applications due to its efficient power usage.
Manufacturer
The LD2981ABU33TR is manufactured by STMicroelectronics. STMicroelectronics is a global semiconductor company that designs, develops, manufactures, and markets a wide range of electronic components and systems. The company is known for its expertise in various domains such as microcontrollers, sensors, power management devices, and integrated circuits. STMicroelectronics serves a wide array of industries, including automotive, industrial, personal electronics, and communication equipment. It is one of the leading players in the semiconductor industry, renowned for its innovation, quality, and comprehensive portfolio of semiconductor solutions.
Application
The LD2981ABU33TR is a low-dropout linear voltage regulator designed for various applications. Its primary application areas include:
1. Consumer Electronics: Used in portable devices like smartphones and tablets for stable voltage supply.
2. Communication Equipment: Ensures reliable power for modems and wireless communication devices.
3. Industrial Automation: Provides consistent voltage levels for sensors and control systems.
4. Computing Devices: Powers microcontrollers and processors in embedded systems and PCs.
5. Automotive Electronics: Supports infotainment systems and other low-power automotive applications.
Its low quiescent current and dropout voltage make it ideal for battery-powered and energy-efficient devices.
1. Consumer Electronics: Used in portable devices like smartphones and tablets for stable voltage supply.
2. Communication Equipment: Ensures reliable power for modems and wireless communication devices.
3. Industrial Automation: Provides consistent voltage levels for sensors and control systems.
4. Computing Devices: Powers microcontrollers and processors in embedded systems and PCs.
5. Automotive Electronics: Supports infotainment systems and other low-power automotive applications.
Its low quiescent current and dropout voltage make it ideal for battery-powered and energy-efficient devices.
Package
The LD2981ABU33TR is a low-dropout voltage regulator that comes in a SOT-89 package type.
