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SC189AULTRT from SILICON

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SC189AULTRT

Manufacturer: SILICON, SEMTECH

2.5MHz, 1.5A Synchronous Step Down Regulator

Partnumber Manufacturer Quantity Availability
SC189AULTRT SILICON, SEMTECH 6000 In Stock

Description and Introduction

2.5MHz, 1.5A Synchronous Step Down Regulator Here are the factual details about the **SC189AULTRT** from the manufacturer **SEMTECH**:

### **Specifications:**
- **Manufacturer:** SEMTECH  
- **Part Number:** SC189AULTRT  
- **Type:** Synchronous Buck Converter  
- **Input Voltage Range:** 4.5V to 18V  
- **Output Voltage Range:** Adjustable (0.6V to 5.5V)  
- **Output Current:** Up to 6A  
- **Switching Frequency:** 500kHz to 2MHz (adjustable)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 16-Pin QFN (3mm x 3mm)  

### **Descriptions:**
- The **SC189AULTRT** is a high-efficiency, synchronous step-down DC-DC converter designed for applications requiring high power density and fast transient response.  
- It integrates low RDS(ON) MOSFETs to minimize power loss and improve thermal performance.  
- Features adjustable soft-start and power-good indication for system reliability.  

### **Features:**
- **Wide Input Voltage Range:** Supports 4.5V to 18V input.  
- **High Efficiency:** Up to 95% with integrated MOSFETs.  
- **Adjustable Frequency:** 500kHz to 2MHz for flexibility in design.  
- **Programmable Output Voltage:** 0.6V to 5.5V via external resistors.  
- **Protection Features:** Overcurrent, overvoltage, undervoltage lockout (UVLO), and thermal shutdown.  
- **Small Form Factor:** 16-pin QFN package (3mm x 3mm) for space-constrained applications.  

This information is based on the manufacturer's datasheet and specifications.

Application Scenarios & Design Considerations

2.5MHz, 1.5A Synchronous Step Down Regulator

Alternative Part Number

  • TPS62290DRVR --: 2A step-down converter in 2x2 SON package with similar input range and pin-compatible footprint, widely available and well documented.
  • AP3211KTR-G1 --: 1.5A synchronous buck regulator in SOT-23-6 with comparable switching frequency and efficiency, suitable drop-in for low-current rails.
  • MP2143DJ-LF-Z --: 3A synchronous step-down converter in TSOT-23 with similar voltage range and high efficiency, good alternative when higher current margin is needed.
  • MP2145GD-Z --: 2A high-efficiency synchronous step-down converter in compact QFN, suitable drop-in style replacement with similar switching frequency.

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