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LTC1148HV

High Efficiency Synchronous Step-Down Switching Regulators

Partnumber Manufacturer Quantity Availability
LTC1148HV 41 In Stock

Description and Introduction

High Efficiency Synchronous Step-Down Switching Regulators The LTC1148HV is a high voltage, high efficiency switching regulator controller manufactured by Linear Technology (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Input Voltage Range:** 8V to 48V (up to 60V absolute maximum).  
- **Output Voltage:** Adjustable from 3.3V to 50V.  
- **Switching Frequency:** 200kHz (fixed).  
- **Maximum Duty Cycle:** 95%.  
- **Quiescent Current:** 1.5mA (typical).  
- **Operating Temperature Range:** -40°C to +85°C.  
- **Package Options:** 16-pin PDIP, 16-pin SOIC.  

### **Descriptions:**  
- The LTC1148HV is a synchronous step-down (buck) switching regulator controller designed for high voltage applications.  
- It drives external N-channel MOSFETs to achieve high efficiency power conversion.  
- Features include soft-start, current limiting, and thermal shutdown protection.  

### **Features:**  
- **High Efficiency:** Up to 95% efficiency with synchronous rectification.  
- **Adjustable Output:** Uses an external resistor divider for flexible output voltage setting.  
- **Low Quiescent Current:** Optimized for battery-powered applications.  
- **Protection Circuits:** Includes overcurrent, undervoltage lockout (UVLO), and thermal shutdown.  
- **Synchronous Operation:** Reduces power loss compared to diode-based designs.  
- **Soft-Start:** Prevents inrush current during startup.  

This information is based solely on the manufacturer's datasheet. For detailed application notes, refer to official documentation.

Application Scenarios & Design Considerations

High Efficiency Synchronous Step-Down Switching Regulators
Partnumber Manufacturer Quantity Availability
LTC1148HV LT 718 In Stock

Description and Introduction

High Efficiency Synchronous Step-Down Switching Regulators The LTC1148HV is a high-voltage, high-efficiency switching regulator controller manufactured by Linear Technology (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Input Voltage Range:** 8V to 48V (up to 60V transient).  
- **Output Voltage Range:** Adjustable from 3.3V to 48V.  
- **Switching Frequency:** 100kHz (fixed).  
- **Maximum Duty Cycle:** 96%.  
- **Quiescent Current:** 1.2mA (typical).  
- **Operating Temperature Range:** -40°C to +85°C.  
- **Package Options:** 16-pin PDIP and SOIC.  

### **Descriptions:**  
- The LTC1148HV is a synchronous step-down (buck) switching regulator controller designed for high-voltage applications.  
- It drives external N-channel MOSFETs for efficient power conversion.  
- Features include soft-start, current limiting, and adjustable output voltage.  

### **Features:**  
- **High Efficiency:** Synchronous rectification minimizes power loss.  
- **Wide Input Range:** Supports up to 48V (60V transient).  
- **Adjustable Output:** Set via external resistors.  
- **Soft-Start Function:** Reduces inrush current during startup.  
- **Current Mode Control:** Ensures stable operation with fast transient response.  
- **Low Quiescent Current:** Optimized for battery-powered applications.  
- **Thermal Protection:** Prevents overheating.  

This information is strictly based on the manufacturer's datasheet.

Application Scenarios & Design Considerations

High Efficiency Synchronous Step-Down Switching Regulators

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