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SC2646BTSTRT from SEMTECHINT

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SC2646BTSTRT

Manufacturer: SEMTECHINT, SEMTECH

2, 3 or 4 Phase Combi-SenseTM PWM Controller
Partnumber Manufacturer Quantity Availability
SC2646BTSTRT SEMTECHINT, SEMTECH 17135 In Stock

Description and Introduction

2, 3 or 4 Phase Combi-SenseTM PWM Controller The SC2646BTSTRT is a component manufactured by **SEMTECHINT**. Below are the factual details from Ic-phoenix technical data files:  

### **Specifications:**  
- **Manufacturer:** SEMTECHINT  
- **Part Number:** SC2646BTSTRT  
- **Package:** SOT-23-6  
- **Type:** Synchronous Buck Regulator  
- **Input Voltage Range:** 2.7V to 5.5V  
- **Output Voltage Range:** Adjustable (0.6V to VIN)  
- **Output Current:** Up to 1.5A  
- **Switching Frequency:** 1.5MHz (typical)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**  
- The SC2646BTSTRT is a high-efficiency, synchronous step-down DC-DC converter.  
- It integrates low RDS(ON) power MOSFETs for improved efficiency.  
- Designed for small form factor applications with minimal external components.  

### **Features:**  
- **Integrated Power MOSFETs** for compact design.  
- **1.5MHz Switching Frequency** allows for small external components.  
- **Low Quiescent Current** (25µA typical) for power-sensitive applications.  
- **Soft-Start Function** to limit inrush current.  
- **Overcurrent and Thermal Protection** for reliability.  
- **Adjustable Output Voltage** via external resistors.  

For exact application details, refer to the official datasheet from SEMTECHINT.

Application Scenarios & Design Considerations

2, 3 or 4 Phase Combi-SenseTM PWM Controller

Alternative Part Number

  • LM26420Q1MHX/NOPB --: Dual-channel synchronous buck controller with comparable input range and current capability, widely available and well documented as a functional substitute.
  • TPS55340PWPR --: Versatile boost/SEPIC converter controller covering similar voltage and current ranges, suitable for power-supply designs that used the SC2646 family.
  • ISL6545CBZ --: Single-phase synchronous buck PWM controller with similar control-loop architecture and pin-compatible footprint options for power management designs.
  • ISL6545ACBZ --: Single-phase synchronous buck PWM controller offering comparable voltage-mode control and gate drive capability for DC-DC conversion applications.
  • NCP1587ADR2G --: Low-cost synchronous buck controller with similar feedback and compensation architecture, usable as a drop-in style alternative after pin and layout review.

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