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LM2577SADJ from NS,National Semiconductor

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LM2577SADJ

Manufacturer: NS

SIMPLE SWITCHER Step-Up Voltage Regulator

Partnumber Manufacturer Quantity Availability
LM2577SADJ NS 1760 In Stock

Description and Introduction

SIMPLE SWITCHER Step-Up Voltage Regulator The LM2577SADJ is a switching regulator manufactured by National Semiconductor (NS). Below are its specifications, descriptions, and features based on factual information:  

### **Specifications:**  
- **Input Voltage Range:** 3.5V to 40V  
- **Adjustable Output Voltage Range:** 1.23V to 60V  
- **Output Current:** Up to 3A (with appropriate external components)  
- **Switching Frequency:** 52 kHz (fixed)  
- **Efficiency:** Up to 80%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** TO-263 (5-pin D2PAK)  

### **Descriptions:**  
- The LM2577SADJ is a step-up (boost), flyback, and forward converter switching regulator.  
- It includes a fixed-frequency oscillator, a high-current switch, and voltage feedback control.  
- The adjustable output version (ADJ) allows for flexible voltage settings using external resistors.  
- Designed for simplicity, it requires minimal external components for operation.  

### **Features:**  
- Wide input voltage range (3.5V to 40V).  
- Adjustable output voltage (1.23V to 60V).  
- High efficiency (up to 80%).  
- Internal current limiting and thermal shutdown protection.  
- Low standby current (50 µA typical in shutdown mode).  
- Suitable for battery-powered applications.  

This information is sourced from the manufacturer's datasheet.

Application Scenarios & Design Considerations

SIMPLE SWITCHER Step-Up Voltage Regulator

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