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ISL8009AIRZ-T from INTERSIL

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ISL8009AIRZ-T

Manufacturer: INTERSIL, INTESIL

1.5A Low Quiescent Current 1.6MHz High Efficiency Synchronous Buck Regulator

Partnumber Manufacturer Quantity Availability
ISL8009AIRZ-T,ISL8009AIRZT INTERSIL, INTESIL 4200 In Stock

Description and Introduction

1.5A Low Quiescent Current 1.6MHz High Efficiency Synchronous Buck Regulator The ISL8009AIRZ-T is a step-down DC/DC converter manufactured by INTERSIL (now part of Renesas Electronics). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**  
- **Input Voltage Range:** 2.7V to 5.5V  
- **Output Voltage Range:** Adjustable from 0.8V to 4V  
- **Output Current:** Up to 2A  
- **Switching Frequency:** 1.5MHz (typical)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 10-Lead DFN (3mm x 3mm)  

### **Descriptions:**  
The ISL8009AIRZ-T is a synchronous step-down DC/DC converter designed for high efficiency and compact power solutions. It integrates both high-side and low-side MOSFETs, reducing external component count and board space. The device operates at a fixed frequency of 1.5MHz, allowing the use of small inductors and capacitors.  

### **Features:**  
- **Integrated Power MOSFETs** (synchronous rectification)  
- **High Efficiency** (up to 95%)  
- **Adjustable Output Voltage** (0.8V to 4V)  
- **1.5MHz Fixed Switching Frequency**  
- **100% Duty Cycle Operation** for low dropout  
- **Soft-Start Function** to limit inrush current  
- **Overcurrent and Thermal Protection**  
- **Low Quiescent Current** (30µA typical in shutdown mode)  
- **Small DFN Package** (3mm x 3mm) for space-constrained applications  

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

Application Scenarios & Design Considerations

1.5A Low Quiescent Current 1.6MHz High Efficiency Synchronous Buck Regulator

Alternative Part Number

  • TPS62290DRVR --: Pin-compatible 2A synchronous buck converter in a similar small package with comparable input voltage range and switching frequency, widely available and well documented.
  • MP2143DJ-LF-Z --: 3A synchronous step-down converter with similar input range and compact SOT-23 package, offering higher current capability as a drop-in style replacement.
  • AP3211KTR-G1 --: 1.5A synchronous buck converter in SOT-23-6 with comparable voltage ratings and low external component count, suitable for similar point-of-load applications.
  • MP2145GD-Z --: High-efficiency 2A synchronous step-down converter in a similar small package, suitable drop-in replacement for many ISL8009 designs.

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