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ISL6840IU from INTERSIL

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ISL6840IU

Manufacturer: INTERSIL

Improved industry standard single-ended current mode PWM controller.

Partnumber Manufacturer Quantity Availability
ISL6840IU INTERSIL 99 In Stock

Description and Introduction

Improved industry standard single-ended current mode PWM controller. The ISL6840IU is a high-performance synchronous buck PWM controller manufactured by INTERSIL (now part of Renesas Electronics). Below are its key specifications, descriptions, and features based on factual information:

### **Specifications:**
- **Input Voltage Range:** 4.5V to 25V  
- **Output Voltage Range:** Adjustable down to 0.8V  
- **Switching Frequency Range:** 100kHz to 1MHz (adjustable)  
- **Maximum Duty Cycle:** 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 16-Lead QFN (Quad Flat No-Lead)  

### **Descriptions:**
- The ISL6840IU is designed for high-efficiency DC-DC buck converter applications.  
- It supports synchronous rectification for improved efficiency.  
- The controller includes integrated MOSFET drivers, reducing external component count.  
- It features voltage-mode control with adjustable compensation.  

### **Features:**
- **Adjustable Frequency:** Allows optimization for efficiency or component size.  
- **Precision Reference:** 0.8V ±1% accuracy over temperature.  
- **Soft-Start:** Programmable to reduce inrush current.  
- **Overcurrent Protection:** Uses inductor DCR sensing or external resistor.  
- **Power Good Indicator:** Monitors output voltage status.  
- **Synchronization Capability:** Can sync to an external clock.  
- **Low Quiescent Current:** Enhances light-load efficiency.  

The ISL6840IU is commonly used in telecom, industrial, and computing power supply applications.  

(Note: Always refer to the official datasheet for the latest and most accurate details.)

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