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MC33067DWR2G from ON,ON Semiconductor

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MC33067DWR2G

Manufacturer: ON

High Performance Resonant Mode Controllers

Partnumber Manufacturer Quantity Availability
MC33067DWR2G ON 1995 In Stock

Description and Introduction

High Performance Resonant Mode Controllers The MC33067DWR2G is a high-performance, fixed-frequency current-mode PWM controller manufactured by ON Semiconductor.  

### **Specifications:**  
- **Input Voltage Range:** 10V to 16V (operating), 8.4V (UVLO threshold)  
- **Output Drive Current:** ±1.5A (peak)  
- **Switching Frequency:** Up to 500kHz  
- **Duty Cycle Range:** 0% to 100%  
- **Error Amplifier Bandwidth:** 5MHz  
- **Soft-Start Capability:** Adjustable  
- **Operating Temperature Range:** -40°C to +105°C  
- **Package:** SOIC-16 (DWR2G)  

### **Descriptions:**  
The MC33067DWR2G is designed for high-efficiency power supply applications, featuring current-mode control for improved transient response and simplified loop compensation. It includes built-in protections such as undervoltage lockout (UVLO), cycle-by-cycle current limiting, and thermal shutdown.  

### **Features:**  
- **Current-Mode Control:** Enhances noise immunity and simplifies feedback loop design.  
- **Programmable Soft-Start:** Reduces inrush current during startup.  
- **Precision Reference Voltage:** 5.1V with ±1% accuracy.  
- **Synchronous Capability:** Supports external synchronization.  
- **Low Startup Current:** Typically 0.5mA.  
- **High-Current Totem Pole Output:** Optimized for driving power MOSFETs.  

This device is commonly used in DC-DC converters, offline power supplies, and industrial power systems.  

(Source: ON Semiconductor datasheet for MC33067DWR2G.)

Application Scenarios & Design Considerations

High Performance Resonant Mode Controllers

Alternative Part Number

  • UC3845BD1R2G --: Same manufacturer and package family; current-mode PWM controller that can serve as a functional substitute in many switching supply designs, though pinout and features should be verified.
  • SG3525ADWR2G --: ON Semiconductor PWM controller in a similar SOIC-wide package; commonly used as an alternative in power supply control applications with comparable drive capability.
  • TL494CDR2G --: Widely available PWM control IC from the same manufacturer in a similar surface-mount package; a common cross-reference for general PWM controller applications, requiring circuit-level verification.

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