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LT1331CG#TR from LT

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LT1331CG#TR

Manufacturer: LT

3V RS562 or 5V/3V RS232 Transceiver with One Receiver Active in Shutdown

Partnumber Manufacturer Quantity Availability
LT1331CG#TR,LT1331CGTR LT 994 In Stock

Description and Introduction

3V RS562 or 5V/3V RS232 Transceiver with One Receiver Active in Shutdown The LT1331CG#TR is a high-efficiency, high-voltage switching regulator controller manufactured by Linear Technology (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Input Voltage Range:** 3.5V to 30V  
- **Output Voltage:** Adjustable (via external components)  
- **Switching Frequency:** 100kHz (fixed)  
- **Maximum Duty Cycle:** 90%  
- **Operating Temperature Range:** 0°C to 70°C  
- **Package:** 16-Lead SSOP (Shrink Small Outline Package)  
- **Output Current:** Depends on external MOSFET selection  
- **Efficiency:** Up to 90% (depending on configuration)  
- **Protection Features:** Undervoltage lockout (UVLO), current limiting  

### **Description:**  
The LT1331CG#TR is a step-down (buck) switching regulator controller designed for high-efficiency power conversion. It drives an external N-channel MOSFET to regulate output voltage with minimal external components. The device is optimized for applications requiring high input voltages and compact designs.

### **Features:**  
- **High-Voltage Operation:** Supports input voltages up to 30V  
- **Low Quiescent Current:** Typically 1.5mA  
- **Adjustable Output Voltage:** Set via external feedback resistors  
- **Current Mode Control:** Improves transient response and stability  
- **Undervoltage Lockout (UVLO):** Ensures proper start-up  
- **Thermal Shutdown:** Protects against overheating  
- **Soft-Start Function:** Reduces inrush current  

The LT1331CG#TR is commonly used in automotive, industrial, and telecom power supply applications.

Application Scenarios & Design Considerations

3V RS562 or 5V/3V RS232 Transceiver with One Receiver Active in Shutdown

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