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IR3621F from IR,International Rectifier

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IR3621F

Manufacturer: IR

2-Phase Dual Synchronous PWM Controller with Oscillator Synchronization and Pre-Bias Startup

Partnumber Manufacturer Quantity Availability
IR3621F IR 31 In Stock

Description and Introduction

2-Phase Dual Synchronous PWM Controller with Oscillator Synchronization and Pre-Bias Startup **IR3621F Manufacturer: International Rectifier (IR)**  

### **Specifications:**  
- **Type:** Synchronous Buck PWM Controller  
- **Input Voltage Range:** 4.5V to 24V  
- **Output Voltage Range:** Adjustable down to 0.8V  
- **Switching Frequency:** Up to 1MHz  
- **Output Current:** Supports high-current applications (external MOSFETs required)  
- **Efficiency:** High efficiency due to synchronous rectification  
- **Control Method:** Voltage Mode PWM  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 16-Lead SOIC  

### **Descriptions:**  
The IR3621F is a synchronous buck PWM controller designed for high-performance DC-DC voltage regulation. It provides precise output voltage control and is suitable for applications requiring high efficiency and compact power solutions.  

### **Features:**  
- **Wide Input Voltage Range:** Supports 4.5V to 24V input.  
- **Adjustable Output Voltage:** Programmable down to 0.8V.  
- **High Switching Frequency:** Up to 1MHz for compact designs.  
- **Synchronous Rectification:** Improves efficiency.  
- **Protection Features:** Includes undervoltage lockout (UVLO) and overcurrent protection.  
- **External MOSFET Drive:** Allows flexibility in power stage design.  
- **Thermal Performance:** Operates reliably in industrial temperature ranges.  

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

Application Scenarios & Design Considerations

2-Phase Dual Synchronous PWM Controller with Oscillator Synchronization and Pre-Bias Startup
Partnumber Manufacturer Quantity Availability
IR3621F IOR 90 In Stock

Description and Introduction

2-Phase Dual Synchronous PWM Controller with Oscillator Synchronization and Pre-Bias Startup The IR3621F is a synchronous buck PWM controller manufactured by International Rectifier (IR). Below are the factual details about its specifications, descriptions, and features:

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 24V  
- **Output Voltage Range:** Adjustable down to 0.8V  
- **Switching Frequency:** 300 kHz to 1 MHz (adjustable)  
- **Output Current:** Supports high current with external MOSFETs  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 16-lead SOIC  

### **Descriptions:**  
The IR3621F is a high-performance synchronous buck PWM controller designed for DC-DC voltage regulation applications. It provides precise voltage regulation and supports high-efficiency power conversion with adjustable switching frequency.  

### **Features:**  
- **Adjustable Frequency:** 300 kHz to 1 MHz for optimized performance.  
- **Integrated Drivers:** Supports N-channel MOSFETs for synchronous rectification.  
- **Programmable Soft-Start:** Reduces inrush current during startup.  
- **Overcurrent Protection:** Prevents damage from excessive load conditions.  
- **Under-Voltage Lockout (UVLO):** Ensures proper operation within voltage limits.  
- **Power Good Indicator:** Monitors output voltage status.  
- **Thermal Shutdown:** Protects against overheating.  

These details are based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

2-Phase Dual Synchronous PWM Controller with Oscillator Synchronization and Pre-Bias Startup

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