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MC33363DW

Manufacturer: MOTORML, MOT

HIGH VOLTAGE OFF-LINE SWITCHING REGULATOR

Partnumber Manufacturer Quantity Availability
MC33363DW MOTORML, MOT 174 In Stock

Description and Introduction

HIGH VOLTAGE OFF-LINE SWITCHING REGULATOR The MC33363DW is a high-voltage switching regulator manufactured by Motorola (now part of ON Semiconductor).  

### **Manufacturer:**  
- **MOT (Motorola Semiconductor, now ON Semiconductor)**  

### **Specifications:**  
- **Type:** High-voltage switching regulator  
- **Input Voltage Range:** 8V to 40V  
- **Output Voltage:** Adjustable  
- **Switching Frequency:** 100 kHz (fixed)  
- **Output Current:** Up to 1.5A  
- **Package:** SOIC-16 (DW suffix indicates wide-body SOIC package)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Features:**  
  - Internal high-voltage power switch  
  - Adjustable output voltage  
  - Under-voltage lockout (UVLO)  
  - Cycle-by-cycle current limiting  
  - Thermal shutdown protection  

### **Descriptions and Features:**  
- Designed for step-down (buck), step-up (boost), and flyback converter applications.  
- Includes a high-voltage NPN power switch with a collector-emitter breakdown voltage of 450V.  
- Suitable for offline and DC-DC power supply applications.  
- Provides protection features such as thermal shutdown and current limiting.  

For detailed electrical characteristics, refer to the official datasheet from ON Semiconductor.

Application Scenarios & Design Considerations

HIGH VOLTAGE OFF-LINE SWITCHING REGULATOR

Alternative Part Number

  • UC3842AN --: Industry-standard current-mode PWM controller in a DIP-16 package, widely used as a functional substitute for offline flyback controller ICs like the MC33363DW.
  • NCP1200P60 --: High-voltage offline PWM controller with integrated startup current source, suitable for low-power AC-DC converters and a common replacement for older Motorola/onsemi controller families.
  • SG6848D --: Green-mode PWM controller for flyback power supplies, pin-compatible in many designs and a cost-effective alternative for offline switching regulator applications.
  • UC3842BD1 --: Industry-standard current-mode PWM controller in SOIC-16, widely available and functionally similar to the MC33363DW offline controller.
  • SG3842N --: Industry-standard current-mode PWM controller with comparable control functions and DIP-8 footprint, suitable for drop-in evaluation in power supply circuits.

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