Overview
The LP2951ACMX, manufactured by Texas Instruments, is a low-dropout (LDO) linear voltage regulator designed for applications requiring stable and efficient power management. This model is part of the LP2951 series, known for its low quiescent current and minimal dropout voltage, making it ideal for battery-powered systems. The LP2951ACMX is available in an 8-pin SOIC package and offers a fixed or adjustable output voltage, catering to a wide range of industrial and consumer electronics applications.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Output Voltage | 3.3V, 1.235V ~ 30V | V | Fixed or adjustable |
| Input Voltage | Up to 30V | V | |
| Dropout Voltage | 0.38V @ 100mA | V | Typical |
| Output Current | 100mA | mA | |
| Quiescent Current | 75µA | µA | Typical |
| Operating Temperature | -40°C ~ 125°C | °C | |
| Package | 8-SOIC | 3.90mm wide |
Key Features
- Low dropout voltage (380mV typical at 100mA)
- Low quiescent current (75µA typical)
- Fixed or adjustable output voltage options
- Error flag output for low voltage detection
- Logic-compatible shutdown input
- Wide input voltage range (up to 30V)
Applications
The LP2951ACMX is widely used in battery-powered systems, portable electronics, and industrial applications. Its low dropout voltage and minimal quiescent current make it suitable for extending battery life in devices such as wireless sensors, medical instruments, and handheld consumer electronics. Additionally, its error flag feature is useful for power-on reset functions and low-battery detection.
Q & A
1. What is the dropout voltage of the LP2951ACMX?
The dropout voltage is typically 380mV at 100mA.
2. Can the output voltage be adjusted?
Yes, the LP2951ACMX supports both fixed and adjustable output voltages.
3. What is the maximum input voltage?
The maximum input voltage is 30V.
4. What is the quiescent current of this regulator?
The quiescent current is typically 75µA.
5. What package does the LP2951ACMX come in?
It is available in an 8-pin SOIC package.
6. Is the LP2951ACMX suitable for battery-powered devices?
Yes, its low dropout voltage and quiescent current make it ideal for battery-powered systems.
7. What is the operating temperature range?
The operating temperature range is -40°C to 125°C.
8. Does it have a shutdown feature?
Yes, it includes a logic-compatible shutdown input.
9. What is the purpose of the error flag output?
The error flag warns of low output voltage, typically due to a drop in input voltage.
10. What are typical applications for the LP2951ACMX?
Typical applications include portable electronics, wireless sensors, and industrial control systems.
