500mA, Low Noise, LDO Micropower Regulators The LT1763 is a low dropout (LDO) linear regulator manufactured by Analog Devices (formerly Linear Technology). Below are its key specifications, descriptions, and features:
### **Specifications:**
- **Output Voltage Range:** Adjustable from 1.22V to 20V or fixed (3.3V, 5V, 12V, etc.).
- **Output Current:** 500mA.
- **Dropout Voltage:** 300mV typical at 500mA load.
- **Input Voltage Range:** Up to 20V (30V transient).
- **Quiescent Current:** 30µA (typical) in operation, 1µA in shutdown.
- **Line Regulation:** 0.02%/V (typical).
- **Load Regulation:** 0.05%/mA (typical).
- **Output Noise Voltage:** 30µVRMS (10Hz to 100kHz).
- **Operating Temperature Range:** -40°C to +125°C.
- **Package Options:** SOT-223, DD-Pak, and 8-Lead SOIC.
### **Descriptions:**
- The LT1763 is a high-performance LDO regulator designed for applications requiring low noise, high PSRR (Power Supply Rejection Ratio), and fast transient response.
- It includes protection features such as reverse battery protection, current limiting, and thermal shutdown.
- Suitable for battery-powered devices, portable electronics, and noise-sensitive applications.
### **Features:**
- **Low Dropout Voltage:** 300mV at full load.
- **Low Noise:** Optimized for RF and precision analog circuits.
- **High PSRR:** 75dB at 1kHz.
- **Adjustable or Fixed Output Voltages.**
- **Low Quiescent Current:** Enhances battery life.
- **Wide Input Voltage Range:** Up to 20V.
- **Thermal and Current Limit Protection.**
- **Stable with Low-ESR Ceramic Capacitors.**
- **Reverse Battery Protection.**
- **Fast Transient Response.**
The LT1763 is commonly used in industrial, automotive, and telecommunications applications where stable, low-noise power is critical.
