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ISL6420AIRZ-TK

Manufacturer: INTERSIL

Advanced Single Synchronous Buck Pulse-Width Modulation PWM Controller

Partnumber Manufacturer Quantity Availability
ISL6420AIRZ-TK,ISL6420AIRZTK INTERSIL 4132 In Stock

Description and Introduction

Advanced Single Synchronous Buck Pulse-Width Modulation PWM Controller The ISL6420AIRZ-TK is a voltage regulator IC manufactured by **INTERSIL** (now part of Renesas Electronics). Below are its key specifications, descriptions, and features based on factual data:

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 28V  
- **Output Voltage Range:** Adjustable from 0.8V to 5.5V  
- **Output Current:** Up to 4A  
- **Switching Frequency:** 300kHz to 1MHz (adjustable)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 16-Lead QFN (Quad Flat No-Lead)  

### **Descriptions:**  
The ISL6420AIRZ-TK is a **synchronous buck PWM controller** designed for high-efficiency DC-DC voltage regulation. It integrates MOSFET drivers and provides precise output voltage control, making it suitable for applications requiring high current and tight voltage regulation.  

### **Features:**  
- **Adjustable Output Voltage** via external resistors  
- **Programmable Soft-Start** to limit inrush current  
- **Overcurrent Protection (OCP)** with hiccup mode  
- **Overvoltage Protection (OVP)**  
- **Undervoltage Lockout (UVLO)**  
- **Synchronous Rectification** for improved efficiency  
- **External Frequency Synchronization** capability  
- **Thermal Shutdown** protection  

This IC is commonly used in **power supplies, networking equipment, telecom systems, and industrial applications**.  

(Note: Always refer to the official datasheet for complete and updated details.)

Application Scenarios & Design Considerations

Advanced Single Synchronous Buck Pulse-Width Modulation PWM Controller

Alternative Part Number

  • TPS54231DR --: Step-down DC-DC converter with similar input voltage range and current capability, widely available and pin-compatible in function.
  • MP1584EN --: Compact buck converter offering comparable switching frequency and output current, suitable as a functional replacement.
  • LM2596S-ADJ --: Adjustable step-down regulator with similar voltage and current ratings, commonly used as a drop-in alternative in power supply designs.
  • TPS54218RTER --: Single-channel synchronous buck controller with similar input voltage range and current capability; widely available and pin-functionally comparable for DC-DC conversion designs.
  • LM27402SQ --: Synchronous buck controller offering comparable voltage-mode control and gate drive capability, suitable as a functional substitute in similar power supply applications.
  • NCP81174MNTXG --: Multi-phase buck controller with similar control architecture and voltage regulation features, usable as an alternative for point-of-load power designs.

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