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LTC1147LCS8-3.3 from LT

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LTC1147LCS8-3.3

Manufacturer: LT

High Efficiency Step-Down Switching Regulator Controllers

Partnumber Manufacturer Quantity Availability
LTC1147LCS8-3.3,LTC1147LCS833 LT 270 In Stock

Description and Introduction

High Efficiency Step-Down Switching Regulator Controllers The LTC1147LCS8-3.3 is a high-efficiency, synchronous step-down switching regulator manufactured by Linear Technology (now part of Analog Devices).  

### **Specifications:**  
- **Manufacturer:** Linear Technology (LT)  
- **Output Voltage:** Fixed 3.3V  
- **Input Voltage Range:** 3.5V to 14V  
- **Output Current:** Up to 1A  
- **Switching Frequency:** 200kHz  
- **Efficiency:** Up to 95%  
- **Package:** 8-Lead SOIC (LCS8)  
- **Operating Temperature Range:** 0°C to 70°C  

### **Descriptions & Features:**  
- **Synchronous Rectification:** Improves efficiency by reducing power loss.  
- **Low Quiescent Current:** Typically 1.5mA (no load).  
- **Burst Mode® Operation:** Enhances efficiency at light loads.  
- **Short-Circuit Protection:** Prevents damage during fault conditions.  
- **Soft-Start:** Reduces inrush current during startup.  
- **Minimal External Components:** Simplifies design and reduces board space.  
- **Fixed Frequency Operation:** Ensures predictable noise performance.  

This regulator is designed for applications requiring high efficiency and compact power solutions, such as portable devices and distributed power systems.

Application Scenarios & Design Considerations

High Efficiency Step-Down Switching Regulator Controllers
Partnumber Manufacturer Quantity Availability
LTC1147LCS8-3.3,LTC1147LCS833 LINEAR 650 In Stock

Description and Introduction

High Efficiency Step-Down Switching Regulator Controllers The LTC1147LCS8-3.3 is a high-efficiency, synchronous step-down switching regulator manufactured by Linear Technology (now part of Analog Devices).  

### **Specifications:**  
- **Output Voltage:** Fixed 3.3V  
- **Input Voltage Range:** 4V to 12V  
- **Output Current:** Up to 1A  
- **Switching Frequency:** 200kHz  
- **Efficiency:** Up to 95%  
- **Package:** 8-Lead SOIC (LCS8)  
- **Operating Temperature Range:** 0°C to 70°C  
- **Regulation Type:** Synchronous Buck (Step-Down)  
- **Features:**  
  - Burst Mode® operation for improved light-load efficiency  
  - Low quiescent current (100µA typical)  
  - Short-circuit protection  
  - Soft-start capability  
  - No external Schottky diode required  

### **Description:**  
The LTC1147LCS8-3.3 is a fixed-output, high-efficiency DC-DC converter designed for battery-powered and portable applications. It uses synchronous rectification to minimize power loss and improve efficiency.  

### **Features:**  
- High efficiency (up to 95%)  
- Low dropout operation  
- Minimal external components required  
- Internal N-channel MOSFET switches  
- Stable with low-ESR output capacitors  
- Light-load efficiency optimization via Burst Mode operation  

This regulator is commonly used in portable electronics, battery-powered systems, and other applications requiring efficient power conversion.

Application Scenarios & Design Considerations

High Efficiency Step-Down Switching Regulator Controllers

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