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SC2643VXTSTR from SC

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SC2643VXTSTR

Manufacturer: SC, SEMTECH

Multi-Platform Multi-Phase PWM Controller
Partnumber Manufacturer Quantity Availability
SC2643VXTSTR SC, SEMTECH 5085 In Stock

Description and Introduction

Multi-Platform Multi-Phase PWM Controller The part **SC2643VXTSTR** is manufactured by **Semtech Corporation**.  

### **Specifications:**  
- **Type:** High-efficiency, synchronous step-down DC-DC converter  
- **Input Voltage Range:** 4.5V to 60V  
- **Output Voltage Range:** Adjustable from 0.8V to 24V  
- **Output Current:** Up to 3A  
- **Switching Frequency:** Adjustable (100kHz to 1MHz)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 16-pin TSSOP  

### **Descriptions and Features:**  
- **Wide Input Voltage Range:** Supports operation from 4.5V to 60V, making it suitable for industrial and automotive applications.  
- **High Efficiency:** Uses synchronous rectification for improved power conversion efficiency.  
- **Adjustable Output Voltage:** Configurable via external resistors.  
- **Programmable Switching Frequency:** Allows optimization for efficiency or component size.  
- **Protection Features:** Includes overcurrent protection (OCP), thermal shutdown, and undervoltage lockout (UVLO).  
- **Low Quiescent Current:** Enhances efficiency in light-load conditions.  
- **Compact Package:** 16-pin TSSOP for space-constrained applications.  

This part is designed for power management in automotive, industrial, and telecom systems.

Application Scenarios & Design Considerations

Multi-Platform Multi-Phase PWM Controller

Alternative Part Number

  • ISL6545CBZ --: Single-phase synchronous buck PWM controller with similar voltage-mode control and integrated drivers, commonly used as a drop-in functional replacement for SC2643 controllers.
  • NCP1587ADR2G --: Low-cost synchronous buck controller with comparable input range and gate drive capability, suitable for the same VRM applications.
  • TPS40170RGYR --: Wide-input synchronous buck controller offering similar control loop and protection features, usable as a higher-integration alternative.
  • ISL6262CRZ --: Two-phase buck PWM controller for CPU/GPU core power with similar VID and current-sense features; widely available and a common cross for Semtech multi-phase controllers.
  • NCP5386MNR2G --: Multi-phase synchronous buck controller with integrated drivers and comparable feedback/current-limit architecture, suitable as a functional replacement in VRM designs.
  • LTC3810EUH --: High-voltage synchronous buck controller offering similar control-loop and protection functions; a viable alternative when exact Semtech part is unavailable.

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