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LM5033SD from NS,National Semiconductor

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LM5033SD

Manufacturer: NS

100V Push-Pull Voltage Mode PWM Controller

Partnumber Manufacturer Quantity Availability
LM5033SD NS 2281 In Stock

Description and Introduction

100V Push-Pull Voltage Mode PWM Controller The LM5033SD is a high-voltage PWM controller manufactured by Texas Instruments (NS).  

### **Specifications:**  
- **Input Voltage Range:** 15V to 100V  
- **Switching Frequency:** Adjustable up to 1MHz  
- **Duty Cycle Range:** Up to 95%  
- **Output Drive Current:** 1.5A (peak)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 10-pin WSON (SD)  

### **Descriptions:**  
- The LM5033SD is a high-performance PWM controller designed for high-voltage DC-DC applications.  
- It integrates a high-voltage start-up regulator, reducing external component count.  
- Suitable for isolated and non-isolated power supply designs.  

### **Features:**  
- **High-Voltage Start-Up Regulator:** Eliminates the need for an external bias supply.  
- **Programmable Soft-Start:** Reduces inrush current during startup.  
- **Current-Mode Control:** Improves transient response and simplifies loop compensation.  
- **Synchronizable Switching Frequency:** Allows synchronization to an external clock.  
- **Cycle-by-Cycle Current Limiting:** Enhances system reliability.  
- **Undervoltage Lockout (UVLO):** Ensures proper operation under low input voltage conditions.  

This controller is commonly used in telecom, industrial, and automotive power supply applications.

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