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SC4521 from SEMTECH

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SC4521

Manufacturer: SEMTECH

3A Step-Down Switching Regulator with Programmable Soft Start

Partnumber Manufacturer Quantity Availability
SC4521 SEMTECH 274 In Stock

Description and Introduction

3A Step-Down Switching Regulator with Programmable Soft Start Part SC4521 is manufactured by SEMTECH. Below are its specifications, descriptions, and features based on available factual information:  

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 36V  
- **Output Voltage Range:** Adjustable (via external resistors)  
- **Output Current:** Up to 5A  
- **Switching Frequency:** Adjustable (300kHz to 2.2MHz)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package Type:** QFN (5mm x 5mm)  

### **Descriptions:**  
- The SC4521 is a high-efficiency, synchronous step-down DC-DC converter.  
- It integrates high-side and low-side MOSFETs for compact power solutions.  
- Designed for applications requiring high power density and efficiency.  

### **Features:**  
- **Wide Input Voltage Range:** Supports 4.5V to 36V input.  
- **High Output Current:** Capable of delivering up to 5A.  
- **Adjustable Switching Frequency:** Configurable between 300kHz and 2.2MHz.  
- **Integrated MOSFETs:** Reduces external component count.  
- **Programmable Soft-Start:** Prevents inrush current.  
- **Protection Features:** Includes overcurrent, overvoltage, and thermal shutdown.  
- **Low Quiescent Current:** Improves efficiency at light loads.  

This information is based on SEMTECH's official documentation for the SC4521. For detailed application notes or schematics, refer to the datasheet.

Application Scenarios & Design Considerations

3A Step-Down Switching Regulator with Programmable Soft Start
Partnumber Manufacturer Quantity Availability
SC4521 SC 169 In Stock

Description and Introduction

3A Step-Down Switching Regulator with Programmable Soft Start Part SC4521 is manufactured by SC.  

**Specifications:**  
- **Input Voltage Range:** 4.5V to 60V  
- **Output Voltage Range:** Adjustable from 0.8V to 50V  
- **Output Current:** Up to 5A  
- **Switching Frequency:** 100kHz to 2.2MHz (adjustable)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Protection Features:** Overcurrent, Overtemperature, and Undervoltage Lockout (UVLO)  

**Descriptions:**  
SC4521 is a high-efficiency, synchronous step-down DC-DC converter with a wide input voltage range. It is designed for applications requiring high power density and performance.  

**Features:**  
- Adjustable output voltage  
- Synchronous rectification for improved efficiency  
- Adjustable switching frequency  
- Integrated power MOSFETs  
- Thermal shutdown protection  
- Small footprint and minimal external components required

Application Scenarios & Design Considerations

3A Step-Down Switching Regulator with Programmable Soft Start
Partnumber Manufacturer Quantity Availability
SC4521 325 In Stock

Description and Introduction

3A Step-Down Switching Regulator with Programmable Soft Start Here is the factual information about part SC4521 from Ic-phoenix technical data files:

- **Manufacturer**: Infineon Technologies  
- **Type**: DC-DC Buck Converter IC  
- **Input Voltage Range**: 4.5V to 42V  
- **Output Voltage Range**: Adjustable from 0.8V to 40V  
- **Output Current**: Up to 5A  
- **Switching Frequency**: 100kHz to 1MHz (adjustable)  
- **Efficiency**: Up to 95%  
- **Features**:  
  - Integrated high-side MOSFET  
  - Adjustable soft-start  
  - Overcurrent protection  
  - Thermal shutdown  
  - Synchronization capability  
- **Package**: PG-DSO-14  
- **Applications**: Industrial, automotive, and power supply systems  

This information is strictly based on the available specifications.

Application Scenarios & Design Considerations

3A Step-Down Switching Regulator with Programmable Soft Start

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