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ICE2QS03 from INFINEON

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ICE2QS03

Manufacturer: INFINEON

Quasi-Resonant PWM Controller

Partnumber Manufacturer Quantity Availability
ICE2QS03 INFINEON 3393 In Stock

Description and Introduction

Quasi-Resonant PWM Controller The **ICE2QS03** is a power management IC manufactured by **Infineon Technologies**. Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**
- **Manufacturer:** Infineon Technologies  
- **Category:** Power Management IC  
- **Type:** Quasi-Resonant (QR) Flyback Controller  
- **Topology:** Flyback Converter  
- **Input Voltage Range:** 85V to 265V AC  
- **Switching Frequency:** Adjustable (typically up to 130 kHz)  
- **Output Power:** Up to 30W (depending on design)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** DIP-8 or SO-8  

### **Descriptions:**
- The **ICE2QS03** is a **highly integrated PWM controller** designed for **quasi-resonant flyback converters** in offline power supplies.  
- It operates in **valley switching mode** to minimize switching losses and improve efficiency.  
- The IC includes **built-in protections** such as overvoltage protection (OVP), overcurrent protection (OCP), and thermal shutdown.  
- It supports **burst mode operation** for improved efficiency at light loads.  

### **Features:**
- **Quasi-Resonant Operation:** Reduces switching losses by enabling zero-voltage switching (ZVS).  
- **Frequency Jittering:** Minimizes EMI emissions.  
- **Soft Start:** Prevents inrush current during startup.  
- **Adjustable Frequency:** Allows optimization for efficiency and EMI performance.  
- **Protection Functions:**  
  - Overvoltage Protection (OVP)  
  - Overcurrent Protection (OCP)  
  - Overload Protection (OLP)  
  - Thermal Shutdown (TSD)  
- **Low Standby Power Consumption:** Supports energy-saving modes.  

This information is based on Infineon's official documentation for the **ICE2QS03**. For detailed application notes or design guidelines, refer to Infineon's datasheet.

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