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LP2951ACM
+BOMIC REG LIN POS ADJ 100MA 8SOIC
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ManufacturerTexas Instruments
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Mfr. Part #LP2951ACM
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Package SOIC (D)-8
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In Stock3909
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Specifications
| Attribute | Value |
| Package | Bulk,Tube |
| ProductStatus | Not For New Designs |
| OutputConfiguration | Positive |
| OutputType | Adjustable (Fixed) |
| NumberofRegulators | 1 |
| Voltage-Input(Max) | 30V |
| Voltage-Output(Min/Fixed) | 1.235V (5V) |
| Voltage-Output(Max) | 29V |
| 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-SOIC (0.154, 3.90mm Width) |
Overview
Description
The LP2951ACM is a low-dropout voltage regulator designed for applications that require efficient power management with minimal voltage difference between input and output. Manufactured by Texas Instruments, it is part of the LP2951 series, which is known for its precision and reliability. This device offers an adjustable output voltage range, typically from 1.25V to 29V, and supports a maximum output current of 100 mA.
Key features include low quiescent current, making it ideal for battery-powered devices, and a dropout voltage typically around 0.4V at 100 mA load. The LP2951ACM incorporates several protection features, such as current limiting and thermal shutdown, to prevent damage from overheating or overcurrent scenarios. It also includes an error flag output to indicate out-of-regulation conditions and a shutdown input pin for enabling low-power states.
The compact 8-pin SOIC package makes it suitable for space-constrained applications. Overall, the LP2951ACM is widely used in consumer electronics, industrial controls, and portable devices due to its robustness and energy efficiency.
Key features include low quiescent current, making it ideal for battery-powered devices, and a dropout voltage typically around 0.4V at 100 mA load. The LP2951ACM incorporates several protection features, such as current limiting and thermal shutdown, to prevent damage from overheating or overcurrent scenarios. It also includes an error flag output to indicate out-of-regulation conditions and a shutdown input pin for enabling low-power states.
The compact 8-pin SOIC package makes it suitable for space-constrained applications. Overall, the LP2951ACM is widely used in consumer electronics, industrial controls, and portable devices due to its robustness and energy efficiency.
Equivalent
Equivalent products for the LP2951ACM, a low-dropout voltage regulator, include:
1. LM2951 series (by Texas Instruments)
2. LT1121 series (by Analog Devices)
3. MIC5201 series (by Microchip Technology)
4. MC33063 series (by ON Semiconductor)
When selecting an equivalent, ensure the specifications like output voltage, dropout voltage, and current rating meet your requirements. Always consult datasheets to verify compatibility.
1. LM2951 series (by Texas Instruments)
2. LT1121 series (by Analog Devices)
3. MIC5201 series (by Microchip Technology)
4. MC33063 series (by ON Semiconductor)
When selecting an equivalent, ensure the specifications like output voltage, dropout voltage, and current rating meet your requirements. Always consult datasheets to verify compatibility.
Features
The LP2951ACM is a low-dropout (LDO) voltage regulator designed for applications requiring precise and stable voltage outputs. Key features include:
1. Low Dropout Voltage: Operates with a low difference between the input and output voltage, making it efficient for battery-powered devices.
2. Output Voltage Options: Provides fixed output voltages (e.g., 3.3V, 5V) and an adjustable version for custom voltage requirements.
3. Current Limiting: Includes current limiting to protect against overload conditions.
4. Thermal Shutdown: Comes with thermal protection to prevent overheating.
5. High Accuracy: Offers high output voltage accuracy, typically within ±1% for critical applications.
6. Low Quiescent Current: Consumes minimal current when idle, which is ideal for power-sensitive applications.
7. Error Flag: Features an error flag output to indicate out-of-tolerance conditions.
8. Enable/Shutdown Pin: Allows the regulator to be turned off to save power.
9. Small Form Factor: Available in compact packages like SOIC-8, making it suitable for space-constrained designs.
These features make the LP2951ACM suitable for a variety of electronic applications such as microcontroller and FPGA power supplies.
1. Low Dropout Voltage: Operates with a low difference between the input and output voltage, making it efficient for battery-powered devices.
2. Output Voltage Options: Provides fixed output voltages (e.g., 3.3V, 5V) and an adjustable version for custom voltage requirements.
3. Current Limiting: Includes current limiting to protect against overload conditions.
4. Thermal Shutdown: Comes with thermal protection to prevent overheating.
5. High Accuracy: Offers high output voltage accuracy, typically within ±1% for critical applications.
6. Low Quiescent Current: Consumes minimal current when idle, which is ideal for power-sensitive applications.
7. Error Flag: Features an error flag output to indicate out-of-tolerance conditions.
8. Enable/Shutdown Pin: Allows the regulator to be turned off to save power.
9. Small Form Factor: Available in compact packages like SOIC-8, making it suitable for space-constrained designs.
These features make the LP2951ACM suitable for a variety of electronic applications such as microcontroller and FPGA power supplies.
Pinout
The LP2951ACM is a low-dropout voltage regulator with an 8-pin configuration. Its main functions include providing a regulated output voltage, typically 5V or adjustable, with a dropout voltage of 60 mV at light loads. Here is a brief overview of the pin functions:
1. VOUT (Pin 1): The regulated output voltage.
2. FEEDBACK (Pin 2): Used for setting the output voltage when an adjustable output is needed.
3. SHUTDOWN (Pin 3): Disables the regulator when connected to a high logic level, reducing the current consumption.
4. GND (Pin 4): Ground reference point for the regulator.
5. INPUT (Pin 5): Unregulated input voltage.
6. DRIVE (Pin 6): Drives an external pass transistor for higher output current applications.
7. SENSE (Pin 7): Used for remote sensing of the output voltage to improve regulation.
8. ERROR (Pin 8): Provides an error signal when output goes out of regulation.
This configuration allows for flexibility in voltage regulation and current supply, making it suitable for various applications requiring precision and efficiency.
1. VOUT (Pin 1): The regulated output voltage.
2. FEEDBACK (Pin 2): Used for setting the output voltage when an adjustable output is needed.
3. SHUTDOWN (Pin 3): Disables the regulator when connected to a high logic level, reducing the current consumption.
4. GND (Pin 4): Ground reference point for the regulator.
5. INPUT (Pin 5): Unregulated input voltage.
6. DRIVE (Pin 6): Drives an external pass transistor for higher output current applications.
7. SENSE (Pin 7): Used for remote sensing of the output voltage to improve regulation.
8. ERROR (Pin 8): Provides an error signal when output goes out of regulation.
This configuration allows for flexibility in voltage regulation and current supply, making it suitable for various applications requiring precision and efficiency.
Manufacturer
The LP2951ACM is a low-dropout voltage regulator originally manufactured by Texas Instruments. Texas Instruments is a global semiconductor company that designs and manufactures a broad range of analog and embedded processing chips. Their products are used in various applications, including automotive, industrial, personal electronics, and communications systems.
Application
The LP2951ACM is a low-dropout voltage regulator widely used in various applications. It is commonly employed for battery-powered devices due to its low quiescent current and efficient power management. It serves well in portable electronics, microcontroller power supplies, and industrial automation systems. Additionally, it is used in automotive electronics for maintaining stable voltage under varying conditions and in telecommunications for reliable power delivery. Its precision voltage reference makes it suitable for use in data acquisition systems and sensor interfaces. The LP2951ACM's versatility and efficiency make it a popular choice for applications requiring stable and reliable voltage regulation.
Package
The LP2951ACM is a low dropout voltage regulator from Texas Instruments. It comes in an 8-pin SOIC (Small Outline Integrated Circuit) package. This package type is compact, surface-mounted, and suitable for space-constrained applications.
