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SI9110DY

High-Voltage Switchmode Controllers

Partnumber Manufacturer Quantity Availability
SI9110DY 83 In Stock

Description and Introduction

High-Voltage Switchmode Controllers The SI9110DY is a switching regulator controller IC manufactured by Vishay Siliconix. Here are its key specifications, descriptions, and features:

### **Specifications:**
- **Input Voltage Range:** 4.5V to 35V  
- **Output Voltage Range:** Adjustable via external components  
- **Switching Frequency:** Up to 1MHz  
- **Output Current:** Controller requires external MOSFET for current handling  
- **Duty Cycle Range:** 0% to 100%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOIC-8  

### **Descriptions:**
- The SI9110DY is a high-performance PWM controller designed for DC-DC converter applications.  
- It supports both buck and boost topologies, making it versatile for various power supply designs.  
- The IC includes an error amplifier, oscillator, PWM comparator, and driver circuitry.  
- It is commonly used in telecom, industrial, and computing power systems.  

### **Features:**
- **Wide Input Voltage Range:** Supports 4.5V to 35V operation.  
- **High Switching Frequency:** Up to 1MHz for compact power supply designs.  
- **Adjustable Output Voltage:** Configured using external resistors.  
- **Soft-Start Function:** Reduces inrush current during startup.  
- **Current Limiting:** Protects against overload conditions.  
- **Synchronous Capability:** Can drive an external MOSFET for synchronous rectification.  
- **Low Power Consumption:** Optimized for efficiency.  

This information is based solely on the manufacturer's datasheet and technical documentation.

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