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LTC1778IGN from LINEAR

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LTC1778IGN

Manufacturer: LINEAR

Wide Operating Range, No RSENSE Step-Down Controller

Partnumber Manufacturer Quantity Availability
LTC1778IGN LINEAR 12 In Stock

Description and Introduction

Wide Operating Range, No RSENSE Step-Down Controller The LTC1778IGN is a high-efficiency, synchronous step-down switching regulator controller manufactured by Linear Technology (now part of Analog Devices).  

### **Specifications:**  
- **Input Voltage Range:** 4V to 36V  
- **Output Voltage Range:** Adjustable down to 0.8V  
- **Switching Frequency:** Adjustable (100kHz to 600kHz)  
- **Maximum Duty Cycle:** 100%  
- **Operating Temperature Range:** -40°C to 85°C  
- **Package:** 16-Lead SSOP  

### **Descriptions:**  
- The LTC1778IGN is designed for high-efficiency DC/DC conversion in applications requiring high input voltages and low output voltages.  
- It uses a synchronous rectification architecture to improve efficiency and reduce power dissipation.  
- The device includes features like adjustable frequency, soft-start, and current-mode control for stable operation.  

### **Features:**  
- **Synchronous Operation:** Reduces power loss by replacing the Schottky diode with a MOSFET.  
- **Adjustable Frequency:** Allows optimization for efficiency or component size.  
- **Current Mode Control:** Ensures fast transient response and stable operation.  
- **100% Duty Cycle Capability:** Supports dropout operation when input voltage approaches output voltage.  
- **Soft-Start Function:** Prevents inrush current at startup.  
- **Wide Input Voltage Range:** Suitable for automotive, industrial, and telecom applications.  

This information is based solely on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

Wide Operating Range, No RSENSE Step-Down Controller
Partnumber Manufacturer Quantity Availability
LTC1778IGN LT 276 In Stock

Description and Introduction

Wide Operating Range, No RSENSE Step-Down Controller The LTC1778IGN is a high efficiency, monolithic synchronous buck switching regulator controller manufactured by Linear Technology (now part of Analog Devices).  

### **Key Specifications:**  
- **Input Voltage Range:** 4V to 36V  
- **Output Voltage Range:** 0.8V to 5.5V (adjustable via external resistors)  
- **Switching Frequency:** 550kHz (fixed)  
- **Maximum Output Current:** Up to 20A (with external MOSFETs)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to 85°C  
- **Package:** 16-Lead SSOP  

### **Features:**  
- **Synchronous Operation:** Reduces power loss by using an internal MOSFET driver for synchronous rectification.  
- **Current Mode Control:** Provides fast transient response and stable loop compensation.  
- **Adjustable Soft-Start:** Prevents inrush current during startup.  
- **Low Dropout Operation:** Allows 100% duty cycle for low input-output differentials.  
- **Power Good Output:** Monitors output voltage status.  
- **Wide Input Voltage Range:** Suitable for automotive, industrial, and telecom applications.  
- **Thermal Shutdown Protection:** Prevents damage from overheating.  

The LTC1778IGN is designed for high-performance step-down DC/DC conversion in applications requiring high efficiency and compact power solutions.

Application Scenarios & Design Considerations

Wide Operating Range, No RSENSE Step-Down Controller

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