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MAX797

Step-Down Controllers with Synchronous Rectifier for CPU Power

Partnumber Manufacturer Quantity Availability
MAX797 5 In Stock

Description and Introduction

Step-Down Controllers with Synchronous Rectifier for CPU Power The MAX797 is a high-efficiency, step-down DC-DC converter designed by Maxim Integrated (now part of Analog Devices). Below are the key specifications, descriptions, and features based on available data:

### **Specifications:**
- **Input Voltage Range:** 4.5V to 30V  
- **Output Voltage Range:** Adjustable from 1.25V to 5.5V (set via external resistors)  
- **Output Current:** Up to 7A  
- **Switching Frequency:** 300kHz (fixed)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package Type:** 28-pin SSOP (Shrink Small Outline Package)  

### **Descriptions:**
- The MAX797 is a synchronous buck (step-down) DC-DC converter optimized for high-efficiency power conversion.  
- It integrates both high-side and low-side MOSFETs, reducing external component count.  
- Supports adjustable output voltage via external feedback resistors.  
- Designed for applications requiring high current with minimal power loss, such as telecom, networking, and industrial systems.  

### **Features:**
- **Synchronous Rectification:** Improves efficiency by reducing conduction losses.  
- **Adjustable Soft-Start:** Limits inrush current during startup.  
- **Overcurrent Protection (OCP):** Safeguards against excessive load conditions.  
- **Thermal Shutdown:** Prevents damage from overheating.  
- **Power-Good Output:** Monitors output voltage status.  
- **Wide Input Voltage Range:** Suitable for various power sources.  

For detailed application circuits and further specifications, refer to the official datasheet from Analog Devices (formerly Maxim Integrated).

Application Scenarios & Design Considerations

Step-Down Controllers with Synchronous Rectifier for CPU Power

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