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ISL6439IB from INTERSIL

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ISL6439IB

Manufacturer: INTERSIL

Single Sync Buck PWM Controller for Broadband Gateway Applications

Partnumber Manufacturer Quantity Availability
ISL6439IB INTERSIL 410 In Stock

Description and Introduction

Single Sync Buck PWM Controller for Broadband Gateway Applications The ISL6439IB is a power management IC manufactured by INTERSIL (now part of Renesas Electronics). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**
- **Manufacturer:** INTERSIL (now Renesas Electronics)  
- **Part Number:** ISL6439IB  
- **Type:** Dual PWM Controller  
- **Input Voltage Range:** 4.5V to 5.5V (VCC), 7V to 24V (VIN)  
- **Output Voltage Range:** Adjustable (depends on external components)  
- **Switching Frequency:** 300kHz (fixed)  
- **Number of Outputs:** 2 (Dual PWM)  
- **Duty Cycle:** Up to 100%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 28-Lead QSOP  

### **Descriptions:**  
The ISL6439IB is a high-efficiency dual PWM controller designed for synchronous buck converters. It provides precise voltage regulation for applications such as servers, telecom, and networking equipment. The IC integrates two independent PWM controllers with MOSFET drivers, enabling compact and efficient power supply designs.

### **Features:**  
- **Dual Synchronous Buck Controllers**  
- **Integrated MOSFET Drivers**  
- **Adjustable Output Voltage**  
- **Overcurrent Protection (OCP)**  
- **Overvoltage Protection (OVP)**  
- **Undervoltage Lockout (UVLO)**  
- **Soft-Start Functionality**  
- **Power-Good (PG) Output**  
- **Fixed 300kHz Switching Frequency**  
- **Thermal Shutdown Protection**  
- **Lead-Free and RoHS Compliant**  

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

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