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ISL6420IR-T from INTERSIL

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ISL6420IR-T

Manufacturer: INTERSIL, INTERSIL,IN

Advanced Single Synchronous Buck Pulse-Width Modulation (PWM) Controller

Partnumber Manufacturer Quantity Availability
ISL6420IR-T,ISL6420IRT INTERSIL, INTERSIL,IN 89735 In Stock

Description and Introduction

Advanced Single Synchronous Buck Pulse-Width Modulation (PWM) Controller The ISL6420IR-T is a voltage regulator manufactured by INTERSIL (now part of Renesas Electronics). Below are its key specifications, descriptions, and features based on factual data:

### **Specifications:**
- **Manufacturer:** INTERSIL (Renesas Electronics)  
- **Part Number:** ISL6420IR-T  
- **Type:** Synchronous Buck PWM Controller  
- **Input Voltage Range:** 4.5V to 28V  
- **Output Voltage Range:** Adjustable (0.8V to 5.5V)  
- **Output Current:** Up to 20A (with external MOSFETs)  
- **Switching Frequency:** Adjustable (100kHz to 1MHz)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 16-Lead QFN (Quad Flat No-Lead)  

### **Descriptions:**
- The ISL6420IR-T is a high-performance synchronous buck PWM controller designed for DC-DC voltage regulation.  
- It supports step-down conversion for applications requiring high efficiency and precise voltage control.  
- The device includes features like adjustable soft-start, overcurrent protection, and thermal shutdown.  

### **Features:**
- **Adjustable Output Voltage:** Configurable via external resistors.  
- **Synchronous Rectification:** Improves efficiency by reducing power loss.  
- **Programmable Switching Frequency:** Allows optimization for efficiency and component size.  
- **Overcurrent Protection (OCP):** Prevents damage during excessive load conditions.  
- **Thermal Shutdown:** Protects the IC from overheating.  
- **Soft-Start Control:** Reduces inrush current during startup.  
- **Wide Input Voltage Range:** Suitable for various power supply applications.  

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

Application Scenarios & Design Considerations

Advanced Single Synchronous Buck Pulse-Width Modulation (PWM) Controller

Alternative Part Number

  • TPS5420D --: Wide-input buck converter with comparable current rating and function, commonly used as a drop-in substitute for ISL6420-class controllers.
  • LM2596S-ADJ --: Adjustable step-down regulator with similar voltage and current capability, widely available and well documented.
  • MC34063A --: Versatile DC-DC switching regulator controller suitable for similar power supply designs, low cost and broadly sourced.
  • MC34063AP --: Versatile DC-DC switching regulator supporting buck, boost, and inverting topologies; low-cost and broadly stocked.

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