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MAX8643ETG+ from MAXIM,MAXIM - Dallas Semiconductor

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MAX8643ETG+

Manufacturer: MAXIM

3A, 2MHz Step-Down Regulator with Integrated Switches

Partnumber Manufacturer Quantity Availability
MAX8643ETG+ MAXIM 10000 In Stock

Description and Introduction

3A, 2MHz Step-Down Regulator with Integrated Switches The MAX8643ETG+ is a high-efficiency, step-down DC-DC converter manufactured by Maxim Integrated. Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Input Voltage Range:** 2.6V to 5.5V  
- **Output Voltage Range:** Adjustable from 0.6V to VIN  
- **Output Current:** Up to 1.5A  
- **Switching Frequency:** 1.5MHz (typ)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 24-Pin TQFN (4mm x 4mm)  

### **Descriptions:**  
- The MAX8643ETG+ is a synchronous step-down DC-DC converter optimized for high efficiency and compact design.  
- It integrates low RDS(ON) MOSFETs to minimize power loss and improve thermal performance.  
- Features include pulse-width modulation (PWM) operation with forced-PWM and pulse-frequency modulation (PFM) modes for improved efficiency at light loads.  
- Suitable for portable devices, battery-powered applications, and point-of-load regulation.  

### **Features:**  
- **High Efficiency:** Up to 95% with integrated MOSFETs.  
- **Low Quiescent Current:** 30µA (typ) in PFM mode.  
- **Adjustable Output Voltage:** Set via external resistors.  
- **Soft-Start:** Reduces inrush current during startup.  
- **Undervoltage Lockout (UVLO):** Ensures proper operation under low input voltage.  
- **Thermal Shutdown:** Protects the device from overheating.  
- **Synchronous Rectification:** Improves efficiency and reduces external component count.  

This information is based solely on the manufacturer's datasheet for the MAX8643ETG+.

Application Scenarios & Design Considerations

3A, 2MHz Step-Down Regulator with Integrated Switches

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