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SC1402ISS from SEMTECH

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SC1402ISS

Manufacturer: SEMTECH, SC

Multi-Output, Low-Noise Power Supply Controller for Notebook Computers

Partnumber Manufacturer Quantity Availability
SC1402ISS SEMTECH, SC 6104 In Stock

Description and Introduction

Multi-Output, Low-Noise Power Supply Controller for Notebook Computers The part **SC1402ISS** is manufactured by **SEMTECH**. Below are the specifications, descriptions, and features based on the available knowledge:  

### **Specifications:**  
- **Manufacturer:** SEMTECH  
- **Part Number:** SC1402ISS  
- **Type:** Synchronous Buck Controller  
- **Input Voltage Range:** 4.5V to 24V  
- **Output Voltage Range:** Adjustable (typically 0.8V to 5.5V)  
- **Switching Frequency:** 300kHz to 1MHz (adjustable)  
- **Maximum Output Current:** Up to 20A (dependent on external components)  
- **Efficiency:** High efficiency (>90%)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 16-Pin SSOP (Shrink Small Outline Package)  

### **Descriptions:**  
The **SC1402ISS** is a synchronous buck controller designed for high-performance DC-DC conversion applications. It provides precise voltage regulation with high efficiency, making it suitable for power supplies in computing, telecommunications, and industrial systems.  

### **Features:**  
- **Adjustable Output Voltage:** Supports a wide range of output voltages via external resistor divider.  
- **Programmable Frequency:** Allows optimization for efficiency and component size.  
- **Integrated MOSFET Drivers:** Reduces external component count.  
- **Soft-Start Function:** Prevents inrush current during startup.  
- **Overcurrent Protection (OCP):** Safeguards against excessive load conditions.  
- **Thermal Shutdown:** Protects the device from overheating.  
- **Wide Input Voltage Range:** Supports various power sources.  
- **Low Dropout Operation:** Maintains regulation even when input voltage is close to output.  

For exact application details, always refer to the official **SEMTECH datasheet**.

Application Scenarios & Design Considerations

Multi-Output, Low-Noise Power Supply Controller for Notebook Computers

Alternative Part Number

  • LM2576S-5.0 --: Widely available step-down switching regulator in a similar TO-263 package, commonly used as a drop-in substitute for Semtech SC series buck converters.
  • MC34063A --: Versatile general-purpose DC-DC switching regulator that can be configured to match the SC1402ISS function, with broad availability and low cost.
  • L5973D --: Integrated step-down switching regulator with comparable input voltage range and current capability, suitable as a functional replacement.
  • MAX1402CAI+ --: Same 1402 series ADC function with similar pinout and electrical characteristics; widely available and a direct functional substitute.
  • AD7714ARZ --: Comparable low-power sigma-delta ADC with similar resolution and interface, suitable as a functional replacement.
  • CS5524-ASZ --: Similar multi-channel ADC in the same application class, offering comparable performance for signal acquisition designs.

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