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LTC3803HS6-5 from LINEAR

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LTC3803HS6-5

Manufacturer: LINEAR

Constant Frequency Current Mode Flyback DC/DC Controller in ThinSOT

Partnumber Manufacturer Quantity Availability
LTC3803HS6-5,LTC3803HS65 LINEAR 62 In Stock

Description and Introduction

Constant Frequency Current Mode Flyback DC/DC Controller in ThinSOT The LTC3803HS6-5 is a high-efficiency, current-mode synchronous step-down switching regulator controller manufactured by Linear Technology (now part of Analog Devices).  

### **Key Specifications:**  
- **Input Voltage Range:** 4V to 30V  
- **Output Voltage:** Fixed 5V (adjustable version also available)  
- **Switching Frequency:** Up to 600kHz  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to 125°C  
- **Package:** SOT-23-6 (ThinSOT)  

### **Features:**  
- **Current-Mode Control:** Provides excellent line and load transient response.  
- **Synchronous Operation:** Improves efficiency by reducing power loss.  
- **Low Quiescent Current:** Typically 100µA in shutdown mode.  
- **Programmable Soft-Start:** Reduces inrush current during startup.  
- **Overcurrent and Thermal Protection:** Enhances reliability.  
- **Wide Input Voltage Range:** Suitable for various applications.  

This regulator is commonly used in power supplies, industrial systems, and telecom applications.

Application Scenarios & Design Considerations

Constant Frequency Current Mode Flyback DC/DC Controller in ThinSOT
Partnumber Manufacturer Quantity Availability
LTC3803HS6-5,LTC3803HS65 LT 85 In Stock

Description and Introduction

Constant Frequency Current Mode Flyback DC/DC Controller in ThinSOT The LTC3803HS6-5 is a high-efficiency, low-noise synchronous step-down switching regulator controller from Linear Technology (now part of Analog Devices).  

### **Specifications:**  
- **Input Voltage Range:** 4V to 30V  
- **Output Voltage:** Fixed 5V  
- **Switching Frequency:** Up to 600kHz  
- **Operating Temperature Range:** -40°C to 125°C  
- **Package:** SOT-23-6 (HS6)  
- **Efficiency:** Up to 95%  
- **Current Limit:** Adjustable  
- **Low Quiescent Current:** ~50µA in shutdown mode  

### **Descriptions and Features:**  
- **Synchronous Operation:** Reduces power loss by replacing the external Schottky diode with an internal MOSFET.  
- **Low Dropout Operation:** Allows the output to remain regulated even when the input voltage approaches the output voltage.  
- **Adjustable Soft-Start:** Prevents inrush current at startup.  
- **Current Mode Control:** Provides fast transient response and stable operation.  
- **Short-Circuit Protection:** Includes cycle-by-cycle current limiting.  
- **Low Shutdown Current:** Consumes minimal power when disabled.  
- **Thermal Shutdown:** Protects the device from overheating.  

This regulator is designed for applications requiring high efficiency and compact power solutions, such as industrial, automotive, and portable electronics.

Application Scenarios & Design Considerations

Constant Frequency Current Mode Flyback DC/DC Controller in ThinSOT

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