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IR3621MTRPBF from IR,International Rectifier

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IR3621MTRPBF

Manufacturer: IR

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

Partnumber Manufacturer Quantity Availability
IR3621MTRPBF IR 2801 In Stock

Description and Introduction

2-Phase Dual Synchronous PWM Controller with Oscillator Synchronization and Pre-Bias Startup The IR3621MTRPBF is a power management IC (PMIC) manufactured by Infineon Technologies (formerly International Rectifier). Below are the factual details about this component:

### **Manufacturer:**  
- **Infineon Technologies (IR - International Rectifier)**  

### **Specifications:**  
- **Part Number:** IR3621MTRPBF  
- **Type:** Synchronous Buck PWM Controller  
- **Input Voltage Range:** 4.5V to 21V  
- **Output Voltage Range:** Adjustable (via external resistors)  
- **Switching Frequency:** Adjustable (300kHz to 1MHz)  
- **Output Current:** Supports high-current applications (external MOSFETs required)  
- **Efficiency:** High efficiency due to synchronous rectification  
- **Protection Features:**  
  - Overcurrent protection (OCP)  
  - Overvoltage protection (OVP)  
  - Undervoltage lockout (UVLO)  
  - Thermal shutdown  
- **Package:** 16-Lead QFN (Quad Flat No-Lead)  

### **Descriptions:**  
- The IR3621MTRPBF is a synchronous buck PWM controller designed for high-efficiency DC-DC voltage regulation.  
- It is optimized for applications requiring high current and precise voltage regulation.  
- The device operates with external N-channel MOSFETs for flexibility in power stage design.  
- It includes adjustable soft-start and frequency synchronization capabilities.  

### **Features:**  
- **Adjustable Output Voltage:** Configurable via external feedback resistors.  
- **Programmable Switching Frequency:** Allows optimization for efficiency and component size.  
- **Synchronous Rectification:** Improves efficiency by reducing conduction losses.  
- **Integrated Bootstrap Diode:** Simplifies gate drive circuitry.  
- **Wide Input Voltage Range:** Suitable for various power supply applications.  
- **Thermal Management:** Includes thermal shutdown for protection.  
- **Compact Package:** 16-Lead QFN for space-constrained designs.  

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

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