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UC3525AQ from UNITRODE

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UC3525AQ

Manufacturer: UNITRODE

Regulating Pulse Width Modulators

Partnumber Manufacturer Quantity Availability
UC3525AQ UNITRODE 34 In Stock

Description and Introduction

Regulating Pulse Width Modulators The UC3525AQ is a pulse width modulation (PWM) controller manufactured by UNITRODE. Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**  
- **Output Configuration:** Push-Pull  
- **Topology:** Buck, Boost, Flyback, Forward  
- **Frequency Range:** 100Hz to 500kHz  
- **Supply Voltage (Vcc):** 8V to 35V  
- **Output Current (Source/Sink):** 200mA / 500mA  
- **Duty Cycle Range:** 0% to 100%  
- **Oscillator Frequency Adjustment:** Via external resistor (RT) and capacitor (CT)  
- **Error Amplifier Bandwidth:** 5MHz  
- **Soft-Start Capability:** Yes  
- **Undervoltage Lockout (UVLO):** Yes  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 16-pin SOIC (Small Outline Integrated Circuit)  

### **Descriptions:**  
- The UC3525AQ is a high-performance PWM controller designed for switch-mode power supply applications.  
- It features a precision voltage reference, error amplifier, adjustable oscillator, soft-start control, and PWM comparator.  
- The device is optimized for push-pull and single-ended converter designs.  

### **Features:**  
- **Synchronizable Oscillator:** Allows synchronization with external clock signals.  
- **Programmable Dead-Time Control:** Ensures no shoot-through in push-pull configurations.  
- **Error Amplifier with High Gain-Bandwidth Product:** Improves transient response.  
- **Soft-Start Function:** Prevents output overshoot during startup.  
- **Undervoltage Lockout (UVLO):** Ensures proper operation under low supply conditions.  
- **Dual Alternating Outputs:** Suitable for transformer-coupled applications.  

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

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