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LTC3803IS6-5#PBF from LINEAR

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LTC3803IS6-5#PBF

Manufacturer: LINEAR

Constant Frequency Current Mode Flyback DC/DC Controller in ThinSOT

Partnumber Manufacturer Quantity Availability
LTC3803IS6-5#PBF,LTC3803IS65PBF LINEAR 131 In Stock

Description and Introduction

Constant Frequency Current Mode Flyback DC/DC Controller in ThinSOT The LTC3803IS6-5#PBF is a step-down (buck) switching regulator controller manufactured by Linear Technology (now part of Analog Devices).  

### **Specifications:**  
- **Input Voltage Range:** 4V to 30V  
- **Output Voltage:** Fixed 5V (adjustable with external components)  
- **Switching Frequency:** Up to 600kHz  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOT-23-6  
- **Control Method:** Current-mode PWM  
- **Duty Cycle Range:** Up to 95%  
- **Low Quiescent Current:** 150µA (typical)  
- **Features:**  
  - Adjustable soft-start  
  - Overcurrent protection  
  - Synchronizable switching frequency  
  - Low shutdown current (<1µA)  

### **Descriptions:**  
The LTC3803IS6-5#PBF is a high-efficiency, current-mode DC/DC controller designed for step-down applications. It drives an external N-channel MOSFET and provides precise output voltage regulation.  

### **Features:**  
- **Wide Input Voltage Range:** Supports 4V to 30V operation.  
- **High Efficiency:** Optimized for low-power dissipation.  
- **Current-Mode Control:** Ensures fast transient response and stable operation.  
- **Adjustable Frequency:** Allows synchronization to an external clock.  
- **Protection Features:** Includes overcurrent and thermal shutdown protection.  
- **Compact Package:** SOT-23-6 for space-constrained applications.  

This device is commonly used in industrial, automotive, and telecom power supply designs.

Application Scenarios & Design Considerations

Constant Frequency Current Mode Flyback DC/DC Controller in ThinSOT

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