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ISL6439CB from INTERSIL

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ISL6439CB

Manufacturer: INTERSIL

Single Sync Buck PWM Controller for Broadband Gateway Applications

Partnumber Manufacturer Quantity Availability
ISL6439CB INTERSIL 104 In Stock

Description and Introduction

Single Sync Buck PWM Controller for Broadband Gateway Applications The ISL6439CB 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  
- **Part Number:** ISL6439CB  
- **Type:** Synchronous Buck PWM Controller  
- **Input Voltage Range:** 4.5V to 28V  
- **Output Voltage Range:** Adjustable (0.8V to 5.5V)  
- **Switching Frequency:** Adjustable (100kHz to 1MHz)  
- **Maximum Output Current:** Supports high current with external MOSFETs  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 28-Lead SOIC  

### **Descriptions:**
- The ISL6439CB is a high-performance synchronous buck PWM controller designed for DC-DC voltage regulation.  
- It integrates control, monitoring, and protection features for efficient power conversion.  
- Suitable for applications such as telecom, networking, and industrial power supplies.  

### **Features:**
- **Adjustable Output Voltage:** Supports a wide range via external resistors.  
- **Programmable Switching Frequency:** Allows optimization for efficiency and component size.  
- **Voltage Feed-Forward Compensation:** Improves transient response.  
- **Integrated MOSFET Drivers:** Reduces external component count.  
- **Protection Features:**  
  - Overvoltage Protection (OVP)  
  - Undervoltage Lockout (UVLO)  
  - Overcurrent Protection (OCP)  
  - Thermal Shutdown  
- **Soft-Start Function:** Prevents inrush current during startup.  

For detailed application notes and schematics, refer to the official datasheet from INTERSIL/Renesas.

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