規格
| 屬性 | 價值 |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| OutputConfiguration | Positive |
| OutputType | Fixed |
| NumberofRegulators | 1 |
| Voltage-Input(Max) | 30V |
| Voltage-Output(Min/Fixed) | 3.3V |
| VoltageDropout(Max) | 0.6V @ 100mA |
| Current-Output | 100mA |
| Current-Quiescent(Iq) | 120 µA |
| Current-Supply(Max) | 14 mA |
| ProtectionFeatures | Over Current, Over Temperature, Short Circuit |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Through Hole |
| Package/Case | TO-226-3, TO-92-3 (TO-226AA) Formed Leads |
概述
Description
The LP2950-33LPRE3 is a fixed output voltage regulator, designed to provide a steady 3.3V output from a higher voltage input. It belongs to the LP2950 series of low-dropout (LDO) voltage regulators, known for their low quiescent current and efficient performance, making them suitable for battery-powered applications. This particular model is housed in a SOT-89 package, which is a small, surface-mount form factor, ideal for compact electronic designs.
Key features of the LP2950-33LPRE3 include a typical dropout voltage of 380 mV at 100 mA load, which means it can maintain the output voltage even when the input voltage is close to the output level. It also offers excellent line and load regulation, and protection features such as current limiting and thermal shutdown to prevent damage under fault conditions. These characteristics make it a reliable choice for powering microcontrollers, sensors, and other low-power devices where precise voltage regulation is critical.
Key features of the LP2950-33LPRE3 include a typical dropout voltage of 380 mV at 100 mA load, which means it can maintain the output voltage even when the input voltage is close to the output level. It also offers excellent line and load regulation, and protection features such as current limiting and thermal shutdown to prevent damage under fault conditions. These characteristics make it a reliable choice for powering microcontrollers, sensors, and other low-power devices where precise voltage regulation is critical.
Equivalent
The LP2950-33LPRE3 is a low-dropout voltage regulator. Equivalent products include:
1. LM2950-3.3 from Texas Instruments
2. MIC5205-3.3 from Microchip Technology
3. NCP1117-3.3 from ON Semiconductor
4. LD1117-3.3 from STMicroelectronics
5. MCP1700-3302 from Microchip Technology
These alternatives offer similar voltage regulation characteristics and performance suitable for comparable applications. Always check the datasheet for specific compatibility.
1. LM2950-3.3 from Texas Instruments
2. MIC5205-3.3 from Microchip Technology
3. NCP1117-3.3 from ON Semiconductor
4. LD1117-3.3 from STMicroelectronics
5. MCP1700-3302 from Microchip Technology
These alternatives offer similar voltage regulation characteristics and performance suitable for comparable applications. Always check the datasheet for specific compatibility.
Features
The LP2950-33LPRE3 is a low-dropout (LDO) voltage regulator designed for efficient power management. Key features include:
1. Output Voltage: It provides a fixed output voltage of 3.3V, suiting a wide range of applications.
2. Low Dropout Voltage: It has a dropout voltage of typically 380 mV at a 100 mA load, making it efficient in low voltage conditions.
3. Current Capability: Supports output currents up to 100 mA.
4. High Accuracy: The output voltage accuracy is typically ±0.5% at room temperature.
5. Low Quiescent Current: It operates with a very low quiescent current, approximately 75 μA, which is beneficial in battery-powered applications.
6. Thermal Protection: Built-in thermal overload protection enhances reliability and safety.
7. Wide Input Voltage Range: The device operates with an input voltage range from 4.5V to 30V.
8. Temperature Range: It is designed to operate over a wide temperature range, making it suitable for various environmental conditions.
9. Package Options: The device is available in a TO-92 and SOT-89 package, offering versatility in PCB designs.
These features make the LP2950-33LPRE3 ideal for use in battery-operated devices, microcontroller power supplies, and other applications requiring stable, regulated power.
1. Output Voltage: It provides a fixed output voltage of 3.3V, suiting a wide range of applications.
2. Low Dropout Voltage: It has a dropout voltage of typically 380 mV at a 100 mA load, making it efficient in low voltage conditions.
3. Current Capability: Supports output currents up to 100 mA.
4. High Accuracy: The output voltage accuracy is typically ±0.5% at room temperature.
5. Low Quiescent Current: It operates with a very low quiescent current, approximately 75 μA, which is beneficial in battery-powered applications.
6. Thermal Protection: Built-in thermal overload protection enhances reliability and safety.
7. Wide Input Voltage Range: The device operates with an input voltage range from 4.5V to 30V.
8. Temperature Range: It is designed to operate over a wide temperature range, making it suitable for various environmental conditions.
9. Package Options: The device is available in a TO-92 and SOT-89 package, offering versatility in PCB designs.
These features make the LP2950-33LPRE3 ideal for use in battery-operated devices, microcontroller power supplies, and other applications requiring stable, regulated power.
Pinout
The LP2950-33LPRE3 is a low-dropout (LDO) voltage regulator with a fixed output voltage of 3.3V. It typically comes in a 3-pin package, such as TO-92 or SOT-89, which are common for these types of regulators. The pin functions are generally as follows:
1. Input (Vin): This pin receives the input voltage, which should be higher than the desired output voltage, but within the operating range of the device.
2. Ground (GND): This is the common ground pin for the input and output voltages.
3. Output (Vout): This pin provides the regulated output voltage, which is 3.3V for this specific part.
These types of voltage regulators are used to maintain a stable output voltage despite variations in input voltage and load conditions, making them suitable for a variety of applications in electronics that require a steady 3.3V supply.
1. Input (Vin): This pin receives the input voltage, which should be higher than the desired output voltage, but within the operating range of the device.
2. Ground (GND): This is the common ground pin for the input and output voltages.
3. Output (Vout): This pin provides the regulated output voltage, which is 3.3V for this specific part.
These types of voltage regulators are used to maintain a stable output voltage despite variations in input voltage and load conditions, making them suitable for a variety of applications in electronics that require a steady 3.3V supply.
Manufacturer
The LP2950-33LPRE3 is manufactured by Texas Instruments. Texas Instruments (TI) is an American technology company headquartered in Dallas, Texas. It is a global semiconductor design and manufacturing company that develops analog chips and embedded processors. TI is known for its innovation in the electronics industry and serves a wide range of markets, including industrial, automotive, personal electronics, and communications.
Application
The LP2950-33LPRE3 is a low dropout voltage regulator commonly used in applications requiring stable and regulated output voltages. It is suitable for battery-powered devices due to its low quiescent current. Key application areas include:
1. Consumer electronics, such as portable gadgets and wearables.
2. Industrial equipment for stable power supplies.
3. Telecommunications for efficient power management.
4. Automotive electronics, offering reliable voltage regulation.
5. Microcontroller and digital logic power supply, ensuring consistent operation.
6. Sensor networks for maintaining sensor accuracy.
Its ability to provide a fixed 3.3V output makes it ideal for use in systems that demand precise voltage levels.
1. Consumer electronics, such as portable gadgets and wearables.
2. Industrial equipment for stable power supplies.
3. Telecommunications for efficient power management.
4. Automotive electronics, offering reliable voltage regulation.
5. Microcontroller and digital logic power supply, ensuring consistent operation.
6. Sensor networks for maintaining sensor accuracy.
Its ability to provide a fixed 3.3V output makes it ideal for use in systems that demand precise voltage levels.
Package
The LP2950-33LPRE3 is a low-dropout (LDO) voltage regulator from Texas Instruments. It is typically available in a Surface-Mount Device (SMD) package format, specifically a SOT-89 package.
