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LTC1147LIS8 from LINEAR

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LTC1147LIS8

Manufacturer: LINEAR

High Efficiency Step-Down Switching Regulator Controllers

Partnumber Manufacturer Quantity Availability
LTC1147LIS8 LINEAR 1220 In Stock

Description and Introduction

High Efficiency Step-Down Switching Regulator Controllers The LTC1147LIS8 is a synchronous step-down switching regulator manufactured by Linear Technology (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Input Voltage Range:** 4V to 16V  
- **Output Voltage Range:** Adjustable from 1.25V to 13.8V  
- **Output Current:** Up to 1A  
- **Switching Frequency:** 200kHz  
- **Efficiency:** Up to 95%  
- **Quiescent Current:** 1.5mA (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-Lead SOIC (LIS8)  

### **Descriptions:**
- The LTC1147LIS8 is a high-efficiency, synchronous buck (step-down) DC/DC converter.  
- It uses a fixed-frequency PWM control scheme for stable operation.  
- Includes built-in synchronous rectification for improved efficiency.  
- Designed for battery-powered and portable applications.  

### **Features:**
- **Synchronous Operation:** Reduces power loss compared to diode-based designs.  
- **Low Dropout Operation:** Maintains regulation even when input voltage is close to output.  
- **Burst Mode® Operation:** Enhances light-load efficiency.  
- **Short-Circuit Protection:** Safeguards against output faults.  
- **Adjustable Output:** Set via external resistors.  
- **Low Quiescent Current:** Extends battery life in portable applications.  

This regulator is commonly used in power supplies for portable devices, battery-powered systems, and distributed power applications.

Application Scenarios & Design Considerations

High Efficiency Step-Down Switching Regulator Controllers
Partnumber Manufacturer Quantity Availability
LTC1147LIS8 LT 537 In Stock

Description and Introduction

High Efficiency Step-Down Switching Regulator Controllers The LTC1147LIS8 is a high-efficiency, synchronous step-down switching regulator manufactured by Linear Technology (now part of Analog Devices).  

### **Specifications:**  
- **Input Voltage Range:** 4V to 16V  
- **Output Voltage Range:** Adjustable down to 1.25V  
- **Output Current:** Up to 2A  
- **Switching Frequency:** 200kHz  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-Lead SOIC (IS8)  

### **Descriptions and Features:**  
- **Synchronous Rectification:** Improves efficiency by reducing power loss.  
- **Burst Mode Operation:** Enhances light-load efficiency.  
- **Low Quiescent Current:** 200µA in shutdown mode.  
- **Adjustable Output Voltage:** Set via an external resistor divider.  
- **Short-Circuit Protection:** Includes current limiting.  
- **Soft-Start:** Reduces inrush current during startup.  
- **Low Dropout Operation:** Maintains regulation even when input voltage is close to output.  

The LTC1147LIS8 is designed for battery-powered and portable applications requiring high efficiency and compact power solutions.

Application Scenarios & Design Considerations

High Efficiency Step-Down Switching Regulator Controllers

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