仕様
| 属性 | 値 |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Active |
| 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 |
概要
Description
The LP2951ACMX/NOPB is a low-dropout (LDO) voltage regulator designed by Texas Instruments. It offers precise voltage regulation with a typical output accuracy of ±1% at a fixed output voltage or adjustable between 1.235V to 29V. It is ideal for battery-powered applications due to its low quiescent current (75 µA typical) and low dropout voltage (60 mV at light loads). The LP2951ACMX/NOPB features an error flag to signal output voltage drops, a shutdown pin for power-saving, and thermal and short-circuit protection to enhance reliability. It comes in a SOIC (Small Outline Integrated Circuit) package, making it suitable for space-constrained designs. The regulator is widely used in portable devices, industrial equipment, and consumer electronics for efficient power management.
Equivalent
The LP2951ACMX/NOPB is a low dropout voltage regulator. Equivalent products include:
1. MIC2951 series from Microchip Technology
2. LM2931 series from Texas Instruments
3. LT1121 series from Analog Devices
4. MCP1702 from Microchip Technology
Ensure compatibility by checking key specifications like output voltage, current rating, dropout voltage, and package type.
1. MIC2951 series from Microchip Technology
2. LM2931 series from Texas Instruments
3. LT1121 series from Analog Devices
4. MCP1702 from Microchip Technology
Ensure compatibility by checking key specifications like output voltage, current rating, dropout voltage, and package type.
Features
The LP2951ACMX/NOPB is a low-dropout (LDO) voltage regulator known for its precision and low quiescent current. Key features include:
1. Output Voltage: Adjustable from 1.24V to 29V.
2. Low Dropout Voltage: Typically 60mV at light loads and 380mV at 100mA, enhancing efficiency.
3. Current Limiting: Provides protection against overcurrent conditions.
4. Thermal Protection: Safeguards the device from overheating.
5. Low Quiescent Current: Typically around 75µA, making it suitable for battery-powered applications.
6. Error Flag: Indicates output voltage drops by more than 5% of its nominal value, useful for fault detection.
7. Shutdown Pin: Allows the regulator to be turned off to save energy.
8. Stable with Low ESR Capacitors: Ensures stability across a range of conditions.
9. Package: Available in an 8-pin SOIC package for compact applications.
These features make the LP2951ACMX/NOPB ideal for portable and battery-operated devices requiring efficient voltage regulation with minimal power loss.
1. Output Voltage: Adjustable from 1.24V to 29V.
2. Low Dropout Voltage: Typically 60mV at light loads and 380mV at 100mA, enhancing efficiency.
3. Current Limiting: Provides protection against overcurrent conditions.
4. Thermal Protection: Safeguards the device from overheating.
5. Low Quiescent Current: Typically around 75µA, making it suitable for battery-powered applications.
6. Error Flag: Indicates output voltage drops by more than 5% of its nominal value, useful for fault detection.
7. Shutdown Pin: Allows the regulator to be turned off to save energy.
8. Stable with Low ESR Capacitors: Ensures stability across a range of conditions.
9. Package: Available in an 8-pin SOIC package for compact applications.
These features make the LP2951ACMX/NOPB ideal for portable and battery-operated devices requiring efficient voltage regulation with minimal power loss.
Pinout
The LP2951ACMX/NOPB is a low-dropout voltage regulator from Texas Instruments, specifically designed for applications requiring a regulated output voltage. It typically comes in an 8-pin SOIC package. The device features:
1. Pin Count: 8 pins.
2. Functions:
- VOUT: Regulated output voltage.
- GND: Ground connection.
- VIN: Input voltage.
- SHDN (Shutdown): Puts the device in a low-power shutdown mode when activated.
- FB (Feedback): Used to set the output voltage in adjustable versions.
- Error: Provides a signal when the output voltage is out of regulation.
- Bypass: Allows for the connection of a capacitor to reduce output noise.
- N/C: No connection, may be present for mechanical stability.
This regulator is known for its low quiescent current and precise output voltage, making it suitable for battery-powered devices.
1. Pin Count: 8 pins.
2. Functions:
- VOUT: Regulated output voltage.
- GND: Ground connection.
- VIN: Input voltage.
- SHDN (Shutdown): Puts the device in a low-power shutdown mode when activated.
- FB (Feedback): Used to set the output voltage in adjustable versions.
- Error: Provides a signal when the output voltage is out of regulation.
- Bypass: Allows for the connection of a capacitor to reduce output noise.
- N/C: No connection, may be present for mechanical stability.
This regulator is known for its low quiescent current and precise output voltage, making it suitable for battery-powered devices.
Manufacturer
The LP2951ACMX/NOPB is manufactured by Texas Instruments. Texas Instruments (TI) is a global technology company that designs and manufactures semiconductors and various integrated circuits. Founded in 1930 and headquartered in Dallas, Texas, TI is known for its innovation in analog and embedded processing products. These components are used in a wide array of electronic devices across numerous industries, including automotive, industrial, consumer electronics, and communications. TI focuses on developing technologies that improve power efficiency, enable better sensing capabilities, and enhance connectivity.
Application
The LP2951ACMX/NOPB is a low-dropout voltage regulator commonly used in battery-powered devices, portable electronics, and microcontroller systems due to its low quiescent current and precise voltage regulation. It is suitable for applications requiring efficient power management, such as low-power sensor circuits, handheld instruments, and automotive electronics. Its features, including a programmable output voltage, shutdown capability, and fault detection, make it ideal for use in systems that demand low power consumption and reliable performance.
Package
The LP2951ACMX/NOPB is a low-dropout voltage regulator packaged in an 8-pin SOIC (Small Outline Integrated Circuit) package. This package type is surface-mount, suitable for compact designs.
