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ISL6406IB from INTERSIL

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ISL6406IB

Manufacturer: INTERSIL

Single Synchronous Buck Pulse-Width Modulation (PWM) Controller

Partnumber Manufacturer Quantity Availability
ISL6406IB INTERSIL 5 In Stock

Description and Introduction

Single Synchronous Buck Pulse-Width Modulation (PWM) Controller The ISL6406IB is a synchronous buck PWM controller manufactured by INTERSIL (now part of Renesas Electronics). Below are its key specifications, descriptions, and features based on available data:

### **Specifications:**
- **Input Voltage Range:** 4.5V to 25V  
- **Output Voltage Range:** Adjustable down to 0.8V  
- **Switching Frequency:** 300kHz (fixed)  
- **Output Current:** Supports high-current applications (external MOSFETs required)  
- **Efficiency:** Up to 95% (depends on external components)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 16-Lead QSOP  

### **Descriptions:**
- The ISL6406IB is designed for DC-DC voltage regulation in power supply applications.  
- It integrates control logic, drivers, and protection features for synchronous buck converters.  
- Requires external N-channel MOSFETs and passive components to complete the power stage.  

### **Features:**
- **Voltage Mode Control:** Provides stable regulation with good transient response.  
- **Synchronous Rectification:** Improves efficiency by reducing conduction losses.  
- **Adjustable Soft-Start:** Limits inrush current during startup.  
- **Overcurrent Protection (OCP):** Uses external current sensing.  
- **Overvoltage Protection (OVP):** Monitors output voltage.  
- **Undervoltage Lockout (UVLO):** Ensures proper operation within input range.  
- **Power-Good Output:** Indicates stable output voltage.  
- **Low Shutdown Current:** <10µA (typical) when disabled.  

This information is based on the manufacturer's datasheet and technical documentation. For detailed design considerations, refer to the official datasheet.

Application Scenarios & Design Considerations

Single Synchronous Buck Pulse-Width Modulation (PWM) Controller

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