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SC4521

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.

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.

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

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