Спецификации
| Атрибут | Ценность |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| OutputConfiguration | Positive |
| OutputType | Adjustable (Fixed) |
| NumberofRegulators | 1 |
| Voltage-Input(Max) | 30V |
| Voltage-Output(Min/Fixed) | 1.235V (3.3V) |
| Voltage-Output(Max) | 30V |
| VoltageDropout(Max) | 0.6V @ 100mA |
| Current-Output | 100mA |
| Current-Quiescent(Iq) | 120 µA |
| Current-Supply(Max) | 14 mA |
| ControlFeatures | Enable |
| ProtectionFeatures | Over Current, Over Temperature, Short Circuit |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | 8-WFDFN Exposed Pad |
Обзор
Description
The LP2951-33DRGR is a low-dropout (LDO) voltage regulator from Texas Instruments, designed for applications requiring efficient power management in compact spaces. It provides a fixed output voltage of 3.3V, making it suitable for powering microcontrollers and other low-voltage digital circuits. This device operates with a low quiescent current, which is ideal for battery-powered applications, helping to extend battery life.
The LP2951-33DRGR features a dropout voltage of approximately 380mV at a 100mA load, ensuring that it can maintain regulation with a minimal input-output voltage differential. It includes several built-in features to enhance reliability and performance, such as over-current protection, thermal shutdown, and reverse-battery protection.
Packaged in a small SOT-223 surface-mount, it suits designs where board space is limited. Its versatility and robustness make the LP2951-33DRGR a popular choice for various consumer electronics, automotive, and industrial applications. Additionally, it offers good load and line regulation, ensuring stable performance across varying input voltages and load conditions.
The LP2951-33DRGR features a dropout voltage of approximately 380mV at a 100mA load, ensuring that it can maintain regulation with a minimal input-output voltage differential. It includes several built-in features to enhance reliability and performance, such as over-current protection, thermal shutdown, and reverse-battery protection.
Packaged in a small SOT-223 surface-mount, it suits designs where board space is limited. Its versatility and robustness make the LP2951-33DRGR a popular choice for various consumer electronics, automotive, and industrial applications. Additionally, it offers good load and line regulation, ensuring stable performance across varying input voltages and load conditions.
Equivalent
The LP2951-33DRGR is a low-dropout voltage regulator. Equivalent products include the LM2951 and MIC2951, which have similar features and specifications. Alternative manufacturers may offer equivalent LDOs with similar output voltage and current ratings. Be sure to verify specific parameters like dropout voltage, quiescent current, and package type to ensure compatibility.
Features
The LP2951-33DRGR is a low-dropout voltage regulator designed for various applications requiring precise voltage regulation. Key features include:
1. Low Dropout Voltage: It operates with a low dropout voltage, making it efficient in battery-powered devices.
2. Output Voltage: Fixed output voltage of 3.3V with a high accuracy, typically ±0.5%.
3. Adjustable Output: Offers adjustable output options for custom voltage needs.
4. Temperature Range: Operates over a wide temperature range from -40°C to 125°C, suitable for industrial environments.
5. Low Quiescent Current: Consumes minimal quiescent current, enhancing battery life.
6. Current Limiting and Thermal Protection: Includes built-in current limiting and thermal shutdown features for protection against overload and overheating.
7. Stable with Low ESR Capacitors: Ensures stability with low equivalent series resistance (ESR) capacitors.
8. Package Options: Available in a compact SOIC (Small Outline Integrated Circuit) package for space-constrained applications.
These features make the LP2951-33DRGR ideal for use in portable electronics, microcontroller power supplies, and other precision voltage applications.
1. Low Dropout Voltage: It operates with a low dropout voltage, making it efficient in battery-powered devices.
2. Output Voltage: Fixed output voltage of 3.3V with a high accuracy, typically ±0.5%.
3. Adjustable Output: Offers adjustable output options for custom voltage needs.
4. Temperature Range: Operates over a wide temperature range from -40°C to 125°C, suitable for industrial environments.
5. Low Quiescent Current: Consumes minimal quiescent current, enhancing battery life.
6. Current Limiting and Thermal Protection: Includes built-in current limiting and thermal shutdown features for protection against overload and overheating.
7. Stable with Low ESR Capacitors: Ensures stability with low equivalent series resistance (ESR) capacitors.
8. Package Options: Available in a compact SOIC (Small Outline Integrated Circuit) package for space-constrained applications.
These features make the LP2951-33DRGR ideal for use in portable electronics, microcontroller power supplies, and other precision voltage applications.
Pinout
The LP2951-33DRGR is a low-dropout voltage regulator with a fixed output voltage of 3.3V. It is typically packaged in an 8-pin configuration. The functions of its pins are as follows:
1. Vout: Output voltage pin (3.3V).
2. GND: Ground connection.
3. Vin: Input voltage supply.
4. Feedback (FB): Used for adjustable versions or connecting to Vout for fixed versions.
5. Shutdown (SHDN): Allows the regulator to be turned off, reducing quiescent current.
6. Bypass (BP): Connects to a capacitor for noise reduction and improved stability.
7. Error Output (ERROR): Indicates when the output voltage is out of regulation.
8. No Connect (NC)/Other: May be used for additional functionality depending on the specific manufacturer variant.
Please refer to the specific datasheet for further details, as configurations can vary slightly between manufacturers.
1. Vout: Output voltage pin (3.3V).
2. GND: Ground connection.
3. Vin: Input voltage supply.
4. Feedback (FB): Used for adjustable versions or connecting to Vout for fixed versions.
5. Shutdown (SHDN): Allows the regulator to be turned off, reducing quiescent current.
6. Bypass (BP): Connects to a capacitor for noise reduction and improved stability.
7. Error Output (ERROR): Indicates when the output voltage is out of regulation.
8. No Connect (NC)/Other: May be used for additional functionality depending on the specific manufacturer variant.
Please refer to the specific datasheet for further details, as configurations can vary slightly between manufacturers.
Manufacturer
The LP2951-33DRGR is manufactured by Texas Instruments. Texas Instruments (TI) is a global semiconductor company that designs and produces a wide range of integrated circuits and electronic components. Their products are used in various applications, including consumer electronics, automotive systems, industrial equipment, communications, and more. TI is known for innovation in analog and embedded processing technologies, and it plays a significant role in advancing the electronics industry through its extensive range of products and solutions.
Application
The LP2951-33DRGR is a low-power voltage regulator designed for applications requiring efficient power management. Key application areas include:
1. Battery-Powered Devices: Ideal for extending battery life in portable electronics.
2. Consumer Electronics: Used in devices like smartphones and tablets for stable voltage supply.
3. Industrial Equipment: Provides reliable voltage regulation in harsh environments.
4. Medical Devices: Ensures consistent power delivery in sensitive medical electronics.
5. Wireless Communication: Supports stable operation in RF and wireless modules.
6. IoT Devices: Facilitates energy-efficient power management in connected devices.
Its features, such as low dropout voltage and low quiescent current, make it suitable for applications requiring reliable and efficient power regulation.
1. Battery-Powered Devices: Ideal for extending battery life in portable electronics.
2. Consumer Electronics: Used in devices like smartphones and tablets for stable voltage supply.
3. Industrial Equipment: Provides reliable voltage regulation in harsh environments.
4. Medical Devices: Ensures consistent power delivery in sensitive medical electronics.
5. Wireless Communication: Supports stable operation in RF and wireless modules.
6. IoT Devices: Facilitates energy-efficient power management in connected devices.
Its features, such as low dropout voltage and low quiescent current, make it suitable for applications requiring reliable and efficient power regulation.
Package
The LP2951-33DRGR is a low-dropout voltage regulator typically packaged in a surface-mount, small-outline transistor (SOT-23-5) configuration. This package type is compact and suitable for space-constrained applications, providing efficient thermal performance and ease of handling in automated assembly processes.
