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ISL8843AABZ from INTERSIL

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ISL8843AABZ

Manufacturer: INTERSIL

High Performance Industry Standard Single-Ended Current Mode PWM Controller

Partnumber Manufacturer Quantity Availability
ISL8843AABZ INTERSIL 4485 In Stock

Description and Introduction

High Performance Industry Standard Single-Ended Current Mode PWM Controller The ISL8843AABZ is a high-performance 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 18V  
- **Switching Frequency Range:** 50kHz to 1MHz (adjustable with external resistor)  
- **Output Duty Cycle Range:** 0% to 100%  
- **Maximum Output Current (Gate Drive):** ±2A (peak)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-Lead SOIC  

### **Descriptions:**  
- The ISL8843AABZ is a synchronous buck PWM controller designed for high-efficiency DC-DC converters.  
- It supports voltage-mode control with adjustable switching frequency.  
- Includes features for power sequencing, soft-start, and protection against faults.  

### **Features:**  
- **Adjustable Frequency:** Allows optimization for efficiency and component size.  
- **Precision Reference Voltage:** 0.8V ±1% accuracy.  
- **Integrated Soft-Start:** Reduces inrush current during startup.  
- **Overcurrent Protection (OCP):** Uses external current sensing.  
- **Under-Voltage Lockout (UVLO):** Ensures proper operation within input voltage range.  
- **Synchronous Rectification:** Improves efficiency by reducing conduction losses.  
- **Power-Good Output:** Monitors output voltage status.  

This information is strictly based on the manufacturer's datasheet for the ISL8843AABZ.

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