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ISL6420IRZ from INTERSIL

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ISL6420IRZ

Manufacturer: INTERSIL

Advanced Single Synchronous Buck Pulse-Width Modulation (PWM) Controller
Partnumber Manufacturer Quantity Availability
ISL6420IRZ INTERSIL 610 In Stock

Description and Introduction

Advanced Single Synchronous Buck Pulse-Width Modulation (PWM) Controller The ISL6420IRZ is a voltage regulator manufactured by INTERSIL (now part of Renesas Electronics). Below are its key specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:

### **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 (5mm x 5mm)  

### **Descriptions:**
- The ISL6420IRZ is a synchronous buck PWM regulator designed for high-efficiency DC-DC conversion.  
- It integrates both high-side and low-side MOSFETs, reducing external component count.  
- Suitable for applications requiring precise voltage regulation and high current output.  

### **Features:**
- **Integrated MOSFETs:** Reduces board space and BOM cost.  
- **Adjustable Output Voltage:** Set via external resistors.  
- **Programmable Soft-Start:** Prevents inrush current.  
- **Overcurrent & Overtemperature Protection:** Enhances reliability.  
- **Power Good Indicator:** Monitors output status.  
- **Adjustable Switching Frequency:** Optimizes efficiency and noise performance.  

This information is strictly based on the manufacturer's datasheet for the ISL6420IRZ.

Application Scenarios & Design Considerations

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

Alternative Part Number

  • TPS40210DGQR --: Wide-input-voltage current-mode boost/flyback controller with similar gate-drive and feedback architecture, suitable as a functional substitute in DC-DC designs.
  • LM3478MM --: Low-side N-FET boost controller with comparable current-mode control and wide input range, commonly used as a cross-reference for ISL6420-class controllers.
  • NCP1252ADR2G --: Current-mode PWM controller with adjustable frequency and soft-start, offering similar control-loop behavior for power-supply applications.
  • TPS5420D --: Wide-input buck controller with comparable voltage/current capability and similar control topology, commonly used as a drop-in functional substitute.
  • LM2596S-ADJ --: Popular adjustable buck regulator with similar input range and current rating, widely available and easy to design around.
  • MC34063A --: Versatile general-purpose switching regulator controller that can be configured for similar step-down applications at lower cost.

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