Overview
The LP2951ACMMX/NOPB is a low-dropout (LDO) voltage regulator produced by Texas Instruments. This regulator is part of the LP2951-N series and is known for its high accuracy and low dropout voltage. It is available in an 8-pin VSSOP package and is suitable for a wide range of applications requiring stable voltage regulation. The device operates over a temperature range of -40°C to 125°C, making it versatile for various environmental conditions. It features an adjustable output voltage from 1.24V to 29V and fixed output options of 3V, 3.3V, and 5V, with a maximum output current of 100mA.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Part Number | LP2951ACMMX/NOPB |
| Package Type | VSSOP-8 |
| No. of Terminals | 8 |
| Maximum Input Voltage | 30 V |
| Minimum Input Voltage | 2.3 V |
| Maximum Output Voltage | 29 V |
| Minimum Output Voltage | 1.24 V |
| Maximum Output Current | 0.1 A |
| Maximum Dropout Voltage | 0.6 V |
| Operating Temperature Range | -40°C to 125°C |
| Accuracy | 2.5 % |
| PSRR @ 100KHz | 51 dB |
| Thermal Resistance (θJA) | 43 °C/W |
| RoHS Compliance | Yes |
Key Features
- Adjustable and Fixed Output Options: The LP2951ACMMX/NOPB offers adjustable output voltage from 1.24V to 29V and fixed output options of 3V, 3.3V, and 5V.
- Low Dropout Voltage: The regulator has a maximum dropout voltage of 0.6V, ensuring efficient voltage regulation.
- High Accuracy: The device features an accuracy of 2.5%, ensuring stable output voltage.
- Power Good and Enable Functions: The regulator includes power good indication and an enable function, enhancing its usability in various applications.
- Low Quiescent Current: The typical quiescent current is 0.075 mA, making it suitable for power-sensitive designs.
- High PSRR: The regulator has a high power supply rejection ratio (PSRR) of 51 dB at 100KHz, ensuring good noise rejection.
Applications
- Portable Electronics: The LP2951ACMMX/NOPB is suitable for use in portable electronics due to its low quiescent current and high efficiency.
- Industrial Control Systems: Its stability and accuracy make it a good choice for industrial control systems requiring reliable voltage regulation.
- Automotive Systems: Although not specifically automotive-qualified, its wide operating temperature range makes it a candidate for some automotive applications.
- Medical Devices: The regulator's high accuracy and low noise characteristics are beneficial in medical devices that require stable power supply.
Q & A
- What is the maximum input voltage for the LP2951ACMMX/NOPB?
The maximum input voltage is 30 V.
- What are the fixed output voltage options available for this regulator?
The fixed output voltage options are 3V, 3.3V, and 5V.
- What is the maximum output current of the LP2951ACMMX/NOPB?
The maximum output current is 0.1 A.
- What is the operating temperature range of the LP2951ACMMX/NOPB?
The operating temperature range is -40°C to 125°C.
- Does the LP2951ACMMX/NOPB have power good and enable functions?
Yes, it includes power good indication and an enable function.
- What is the typical quiescent current of the LP2951ACMMX/NOPB?
The typical quiescent current is 0.075 mA.
- Is the LP2951ACMMX/NOPB RoHS compliant?
Yes, it is RoHS compliant.
- What is the maximum dropout voltage of the LP2951ACMMX/NOPB?
The maximum dropout voltage is 0.6 V.
- What is the PSRR at 100KHz for the LP2951ACMMX/NOPB?
The PSRR at 100KHz is 51 dB.
- What package type is the LP2951ACMMX/NOPB available in?
The regulator is available in an 8-pin VSSOP package.
