Series of Adjustable Micropower Voltage Regulators The LP2951ACN is a low-dropout voltage regulator manufactured by National Semiconductor (NSC). Below are its key specifications, descriptions, and features:
### **Specifications:**
- **Output Voltage Options:** Fixed (3.0V, 3.3V, 5.0V) or Adjustable (1.24V to 29V)
- **Output Current:** 100mA (guaranteed)
- **Dropout Voltage:** 380mV (typical at 100mA load)
- **Input Voltage Range:** Up to 30V
- **Line Regulation:** 0.02% (typical)
- **Load Regulation:** 0.04% (typical)
- **Quiescent Current:** 75µA (typical)
- **Operating Temperature Range:** -40°C to +125°C
- **Package:** 8-Pin DIP (PDIP)
### **Descriptions:**
- The LP2951ACN is a precision voltage regulator with low dropout, designed for battery-powered applications.
- It includes features like current limit protection, thermal shutdown, and reverse battery protection.
- Suitable for applications requiring stable voltage with minimal power loss.
### **Features:**
- **Low Dropout Voltage:** Operates efficiently with small input-output differentials.
- **Low Quiescent Current:** Extends battery life in portable devices.
- **Error Flag Output:** Warns of low output voltage (power failure detection).
- **Thermal Shutdown Protection:** Prevents damage from overheating.
- **Reverse Battery Protection:** Safeguards against incorrect polarity connection.
- **Stable with Low-ESR Capacitors:** Works reliably with ceramic or tantalum capacitors.
The LP2951ACN is commonly used in automotive, industrial, and consumer electronics applications.
