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ISL6439CR from INTERSIL

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ISL6439CR

Manufacturer: INTERSIL

Single Sync Buck PWM Controller for Broadband Gateway Applications

Partnumber Manufacturer Quantity Availability
ISL6439CR INTERSIL 15 In Stock

Description and Introduction

Single Sync Buck PWM Controller for Broadband Gateway Applications The ISL6439CR is a power management IC manufactured by INTERSIL (now part of Renesas Electronics). Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:

### **Specifications:**
- **Manufacturer:** INTERSIL  
- **Type:** Dual LDO (Low Dropout Regulator) and Triple PWM (Pulse Width Modulation) Controller  
- **Input Voltage Range:** 4.5V to 5.5V (for PWM controllers)  
- **Output Voltage Range:** Adjustable (for PWM controllers)  
- **Switching Frequency:** Up to 1MHz  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 28-Lead QFN (Quad Flat No-Lead)  

### **Descriptions:**
- The ISL6439CR is designed for power management in applications such as servers, networking equipment, and telecom systems.  
- It integrates two linear regulators (LDOs) and three synchronous buck PWM controllers in a single package.  
- The device provides high efficiency and precise voltage regulation for multi-rail power supply designs.  

### **Features:**
1. **Dual LDO Regulators:**  
   - Low dropout voltage  
   - Adjustable or fixed output voltage options  
   - Current limit protection  

2. **Triple PWM Controllers:**  
   - Synchronous buck architecture  
   - Adjustable output voltage via external resistors  
   - Soft-start functionality  

3. **Protection Features:**  
   - Overcurrent protection (OCP)  
   - Overvoltage protection (OVP)  
   - Undervoltage lockout (UVLO)  

4. **Control & Monitoring:**  
   - Power-good (PG) indicators for each regulator  
   - Enable/disable control for each output  

5. **Efficiency & Performance:**  
   - High switching frequency (up to 1MHz) for compact designs  
   - Low quiescent current  

This information is based solely on the manufacturer's datasheet and technical documentation. For detailed application notes or design considerations, refer to the official datasheet from Renesas Electronics (formerly INTERSIL).

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