LOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS The LD1117 is a low dropout voltage regulator manufactured by various companies, including STMicroelectronics, ON Semiconductor, and others. Below are its key specifications, descriptions, and features based on available data:
### **Specifications:**
- **Output Voltage Options:** Fixed (1.2V, 1.8V, 2.5V, 3.3V, 5.0V) or adjustable (1.25V to 13.8V).
- **Output Current:** Up to 800mA.
- **Dropout Voltage:** Typically 1.1V at 800mA load (varies by model).
- **Input Voltage Range:** Up to 15V (depends on variant).
- **Line Regulation:** 0.2% (typical).
- **Load Regulation:** 0.4% (typical).
- **Operating Temperature Range:** -40°C to +125°C.
- **Package Types:** TO-220, TO-252 (DPAK), SOT-223, and others.
### **Descriptions:**
- The LD1117 is a positive voltage regulator designed for low dropout applications.
- It provides stable output voltage with minimal power dissipation.
- Suitable for battery-powered devices, portable electronics, and embedded systems.
- Available in fixed and adjustable voltage versions.
### **Features:**
- **Low Dropout Voltage:** Ensures efficient regulation even with small input-output differentials.
- **Overcurrent Protection:** Safeguards against excessive load currents.
- **Thermal Shutdown:** Prevents damage from overheating.
- **High Accuracy:** Tight voltage tolerance (±1% for fixed versions).
- **Low Quiescent Current:** Typically 5mA (improves efficiency in standby mode).
- **Wide Compatibility:** Compatible with ceramic and tantalum capacitors for stability.
Note: Exact specifications may vary slightly by manufacturer and variant. Always refer to the datasheet for precise details.
