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SG1577SZ from Fairchil,Fairchild Semiconductor

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SG1577SZ

Manufacturer: Fairchil, FSC

Dual Synchronous DC/DC Controller

Partnumber Manufacturer Quantity Availability
SG1577SZ Fairchil, FSC 162 In Stock

Description and Introduction

Dual Synchronous DC/DC Controller The part SG1577SZ is manufactured by Fairchild Semiconductor. Here are the specifications, descriptions, and features based on Ic-phoenix technical data files:

### **Specifications:**  
- **Manufacturer:** Fairchild Semiconductor  
- **Part Number:** SG1577SZ  
- **Type:** Switching Regulator IC  
- **Output Type:** Adjustable  
- **Topology:** Buck, Boost, Flyback, Forward  
- **Input Voltage Range:** 3V to 40V  
- **Output Voltage Range:** Adjustable (depends on configuration)  
- **Output Current:** Up to 1A (varies with design)  
- **Switching Frequency:** 100kHz (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOIC-8  

### **Descriptions:**  
The SG1577SZ is a versatile switching regulator IC designed for DC-DC conversion applications. It supports multiple topologies, including buck, boost, flyback, and forward configurations, making it suitable for various power supply designs.  

### **Features:**  
- **Wide Input Voltage Range (3V–40V)**  
- **Adjustable Output Voltage**  
- **High Efficiency Switching Regulator**  
- **Internal Current Limiting & Thermal Shutdown**  
- **Low Standby Current**  
- **SOIC-8 Package for Compact Designs**  

This information is strictly based on available data. For detailed application notes or design considerations, refer to the official Fairchild Semiconductor datasheet.

Application Scenarios & Design Considerations

Dual Synchronous DC/DC Controller

Alternative Part Number

  • UC3843BD1 --: Widely available current-mode PWM controller in SOIC-8, functionally similar to the SG1577SZ for switching power supply designs.
  • TL494CDR --: Industry-standard PWM controller in SOIC-16 with dual outputs, a common substitute for Fairchild SG-series PWM ICs.
  • SG3525ADWR2G --: Voltage-mode PWM controller from ON Semiconductor (former Fairchild line) with similar drive capability and SOIC package.
  • SG3525AN --: Voltage-mode PWM controller with similar control-loop architecture, suitable for push-pull and bridge converter applications.

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