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ISL6439IBZ from INTERSIL

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ISL6439IBZ

Manufacturer: INTERSIL

Single Sync Buck PWM Controller for Broadband Gateway Applications

Partnumber Manufacturer Quantity Availability
ISL6439IBZ INTERSIL 13 In Stock

Description and Introduction

Single Sync Buck PWM Controller for Broadband Gateway Applications The ISL6439IBZ 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:** ISL6439IBZ  
- **Type:** Dual LDO (Low Dropout Regulator) and Triple PWM (Pulse Width Modulation) Controller  
- **Package:** 28-Lead SOIC (Small Outline Integrated Circuit)  
- **Input Voltage Range:** 4.5V to 5.5V (for VCC)  
- **Output Voltage Range:** Adjustable for PWM controllers (0.8V to 5.5V)  
- **Switching Frequency:** Up to 1MHz  
- **Operating Temperature Range:** -40°C to +85°C  
- **Features Overcurrent Protection, Overvoltage Protection, and Thermal Shutdown**  

### **Descriptions:**
- The ISL6439IBZ is designed for powering high-performance microprocessors and other low-voltage digital ICs.  
- It integrates two linear regulators (LDOs) and three synchronous buck PWM controllers in a single package.  
- The device provides precise voltage regulation and high efficiency for multi-rail power supply applications.  

### **Features:**
1. **Dual LDO Regulators:**  
   - Low dropout voltage  
   - Adjustable output voltage  
   - Independent enable control  

2. **Triple PWM Controllers:**  
   - Synchronous buck topology  
   - Adjustable output voltage (0.8V to 5.5V)  
   - High efficiency with integrated MOSFET drivers  

3. **Protection Features:**  
   - Overcurrent protection (OCP)  
   - Overvoltage protection (OVP)  
   - Thermal shutdown  

4. **Control and Monitoring:**  
   - Power-good indicators for each regulator  
   - Soft-start capability  

5. **Wide Operating Range:**  
   - Supports input voltages from 4.5V to 5.5V  
   - Operates in industrial temperature ranges (-40°C to +85°C)  

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

Partnumber Manufacturer Quantity Availability
ISL6439IBZ INTERSIL,IN 45 In Stock

Description and Introduction

Single Sync Buck PWM Controller for Broadband Gateway Applications The ISL6439IBZ is a power management IC manufactured by Intersil (now part of Renesas Electronics). Below are its specifications, descriptions, and features based on factual information:

### **Specifications:**  
- **Manufacturer:** Intersil (now Renesas Electronics)  
- **Part Number:** ISL6439IBZ  
- **Package:** 16-SOIC  
- **Type:** Dual PWM Controller  
- **Input Voltage Range:** 4.5V to 5.5V  
- **Output Voltage Range:** Adjustable  
- **Switching Frequency:** Up to 1MHz  
- **Number of Outputs:** 2  
- **Duty Cycle:** Up to 100%  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**  
The ISL6439IBZ is a high-efficiency, dual PWM controller designed for synchronous buck DC-DC converters. It provides precise voltage regulation for applications such as servers, networking equipment, and embedded systems. The device integrates two independent PWM controllers with adjustable switching frequencies and supports high-current outputs with external MOSFETs.

### **Features:**  
- **Dual PWM Controllers:** Independent control for two synchronous buck converters.  
- **Wide Input Voltage Range:** Supports 4.5V to 5.5V input.  
- **Adjustable Output Voltage:** Configurable via external resistors.  
- **High Efficiency:** Optimized for synchronous rectification.  
- **Programmable Switching Frequency:** Up to 1MHz for flexible design.  
- **Overcurrent Protection:** Includes cycle-by-cycle current limiting.  
- **Soft-Start Function:** Prevents inrush current during startup.  
- **Thermal Shutdown:** Protects against overheating.  

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

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