300mA Low Dropout Regulators with Micropower Quiescent Current and Shutdown The LT1521CS8#TRPBF is a low dropout (LDO) linear regulator manufactured by Linear Technology (now part of Analog Devices). Below are its key specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:

### **Specifications:**
- **Output Voltage:** Adjustable (1.24V to 20V) or fixed 3.3V, 5V options.
- **Output Current:** 500mA.
- **Dropout Voltage:** 300mV typical at 500mA load.
- **Input Voltage Range:** Up to 20V.
- **Line Regulation:** 0.02%/V typical.
- **Load Regulation:** 0.04% typical.
- **Quiescent Current:** 1mA typical (shutdown mode: <1µA).
- **Operating Temperature Range:** -40°C to +125°C.
- **Package:** 8-Lead SOIC (SO-8).

### **Descriptions:**
- The LT1521CS8#TRPBF is a high-performance LDO regulator designed for applications requiring stable, low-noise power with minimal dropout voltage.
- It includes features like thermal shutdown and current limit protection for enhanced reliability.
- Suitable for battery-powered devices, portable electronics, and noise-sensitive applications.

### **Features:**
- **Low Dropout Voltage:** Ensures efficient operation with small input-output differentials.
- **Low Noise Output:** Ideal for precision analog circuits.
- **Adjustable Output:** Can be set via external resistors (for adjustable versions).
- **Thermal Shutdown Protection:** Prevents damage from overheating.
- **Current Limit Protection:** Safeguards against excessive load currents.
- **Wide Input Voltage Range:** Supports various power sources.
- **Low Quiescent Current:** Enhances efficiency in battery-operated systems.

For exact performance characteristics, refer to the official datasheet from Analog Devices (formerly Linear Technology).

300mA Low Dropout Regulators with Micropower Quiescent Current and Shutdown