Specifications
| Attribute | Value |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Not For New Designs |
| Output Configuration | Positive |
| Output Type | Adjustable (Fixed) |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 30V |
| Voltage - Output (Min/Fixed) | 1.235V (5V) |
| Voltage - Output (Max) | 29V |
| Voltage Dropout (Max) | 0.6V @ 100mA |
| Current - Output | 100mA |
| Current - Quiescent (Iq) | 120 µA |
| Current - Supply (Max) | 14 mA |
| Control Features | Enable |
| Protection Features | Over Current, Over Temperature, Short Circuit |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount |
Overview
Description
The LP2951ACMM is a low-power voltage regulator designed for battery-powered and portable applications. It is a part of the LP2951 series and features precision output voltage, low quiescent current, and a wide input voltage range. The device is capable of delivering up to 100 mA of output current and is equipped with various features like an error flag, programmable output, and shutdown capability.
With an operating voltage range typically from 2.5V to 30V, the LP2951ACMM provides a fixed output voltage with high accuracy, generally around 1.23V for adjustable versions. It supports both fixed and adjustable output voltage configurations, offering flexibility in various design applications. The regulator is designed to provide a low dropout voltage, making it efficient for low voltage applications.
Key features include thermal shutdown protection, current limitation, and excellent line and load regulation. Its compact size and low power consumption make it ideal for use in battery management systems, portable instruments, and other applications where efficiency and reliability are critical.
With an operating voltage range typically from 2.5V to 30V, the LP2951ACMM provides a fixed output voltage with high accuracy, generally around 1.23V for adjustable versions. It supports both fixed and adjustable output voltage configurations, offering flexibility in various design applications. The regulator is designed to provide a low dropout voltage, making it efficient for low voltage applications.
Key features include thermal shutdown protection, current limitation, and excellent line and load regulation. Its compact size and low power consumption make it ideal for use in battery management systems, portable instruments, and other applications where efficiency and reliability are critical.
Equivalent
The LP2951ACMM is a low-dropout voltage regulator. Equivalent products include the LM2951, MC33269, KA2951, NCV2951, and MIC2951. These alternatives generally offer similar performance in terms of voltage regulation, dropout voltage, and current output. Always verify datasheets for specific parameters to ensure compatibility with your application requirements.
Features
The LP2951ACMM is a low-dropout voltage regulator designed for precise voltage regulation in various applications. Key features include:
1. Low Quiescent Current: It offers a low quiescent current, making it suitable for battery-powered applications by minimizing power consumption.
2. Low Dropout Voltage: The device operates effectively with a low dropout voltage, ensuring optimal performance even when the input voltage is close to the output voltage.
3. Accuracy: It provides high output voltage accuracy, typically within 1% to 2%, ensuring reliable voltage regulation.
4. Adjustable Output: The regulator allows for an adjustable output voltage, providing flexibility for different circuit requirements.
5. Shutdown Capability: It includes a shutdown feature to reduce power consumption further when the device is not in use.
6. Current and Thermal Limiting: Built-in protection features, such as current limiting and thermal shutdown, protect against overload and overheating.
7. Temperature Range: It operates over a wide temperature range, suitable for various industrial and commercial environments.
8. Small Package: The regulator comes in a compact package, making it ideal for space-constrained applications.
These features make the LP2951ACMM a versatile choice for efficient power management in electronic devices.
1. Low Quiescent Current: It offers a low quiescent current, making it suitable for battery-powered applications by minimizing power consumption.
2. Low Dropout Voltage: The device operates effectively with a low dropout voltage, ensuring optimal performance even when the input voltage is close to the output voltage.
3. Accuracy: It provides high output voltage accuracy, typically within 1% to 2%, ensuring reliable voltage regulation.
4. Adjustable Output: The regulator allows for an adjustable output voltage, providing flexibility for different circuit requirements.
5. Shutdown Capability: It includes a shutdown feature to reduce power consumption further when the device is not in use.
6. Current and Thermal Limiting: Built-in protection features, such as current limiting and thermal shutdown, protect against overload and overheating.
7. Temperature Range: It operates over a wide temperature range, suitable for various industrial and commercial environments.
8. Small Package: The regulator comes in a compact package, making it ideal for space-constrained applications.
These features make the LP2951ACMM a versatile choice for efficient power management in electronic devices.
Pinout
The LP2951ACMM is a low-dropout voltage regulator from the LP2951 series, typically available in an 8-pin SOIC (Small Outline Integrated Circuit) package. Its main function is to provide a stable output voltage with low dropout from a varying input voltage, efficiently powering devices in various electronic applications.
Pin functions are generally as follows:
1. VOUT (Pin 1): Output voltage pin.
2. GND (Pin 2): Ground.
3. FB (Feedback) (Pin 3): Used to adjust the output voltage (in adjustable versions).
4. SHUTDOWN (Pin 4): Controls the regulator operation; low to disable the device.
5. ERROR (Pin 5): Provides error flag; indicates when the output voltage is out of regulation.
6. NC (No Connection) (Pin 6): Not internally connected, typically left floating.
7. VREF/COMP (Pin 7): Provides access to the internal reference voltage or for compensation.
8. VIN (Pin 8): Input voltage pin.
This combination allows for precise voltage regulation with additional features like shutdown and error indication. Always verify pin functions from the specific datasheet, as configurations can vary.
Pin functions are generally as follows:
1. VOUT (Pin 1): Output voltage pin.
2. GND (Pin 2): Ground.
3. FB (Feedback) (Pin 3): Used to adjust the output voltage (in adjustable versions).
4. SHUTDOWN (Pin 4): Controls the regulator operation; low to disable the device.
5. ERROR (Pin 5): Provides error flag; indicates when the output voltage is out of regulation.
6. NC (No Connection) (Pin 6): Not internally connected, typically left floating.
7. VREF/COMP (Pin 7): Provides access to the internal reference voltage or for compensation.
8. VIN (Pin 8): Input voltage pin.
This combination allows for precise voltage regulation with additional features like shutdown and error indication. Always verify pin functions from the specific datasheet, as configurations can vary.
Manufacturer
The LP2951ACMM is manufactured by Texas Instruments. Texas Instruments, commonly referred to as TI, is a global technology company based in Dallas, Texas. It is primarily known for designing and manufacturing semiconductors and integrated circuits, which are used in a wide array of electronic applications. TI's products are crucial components in consumer electronics, automotive systems, industrial machinery, and communication devices, among others. The company has a strong reputation for innovation and is involved in research and development to provide solutions that improve efficiency and performance in electronics.
Application
The LP2951ACMM is a low-dropout voltage regulator commonly used in various applications due to its versatility and efficiency. Key application areas include:
1. Battery-Powered Devices: Essential for prolonging battery life in portable electronics by efficiently regulating output voltage.
2. Consumer Electronics: Used in devices such as smartphones, tablets, and wearable gadgets for stable power supply.
3. Industrial Equipment: Provides precise voltage regulation in sensors and control systems.
4. Automotive Electronics: Powers microcontrollers and other components in vehicles.
5. Medical Devices: Ensures reliable performance in sensitive medical equipment.
6. Communications Equipment: Stabilizes power in networking and wireless communication devices.
Its low dropout and low quiescent current make it ideal for energy-sensitive applications.
1. Battery-Powered Devices: Essential for prolonging battery life in portable electronics by efficiently regulating output voltage.
2. Consumer Electronics: Used in devices such as smartphones, tablets, and wearable gadgets for stable power supply.
3. Industrial Equipment: Provides precise voltage regulation in sensors and control systems.
4. Automotive Electronics: Powers microcontrollers and other components in vehicles.
5. Medical Devices: Ensures reliable performance in sensitive medical equipment.
6. Communications Equipment: Stabilizes power in networking and wireless communication devices.
Its low dropout and low quiescent current make it ideal for energy-sensitive applications.
Package
The LP2951ACMM is available in an 8-pin Mini Small Outline Package (MSOP), which is compact and suitable for applications with limited space.
