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MAX798ESE from MAXIM,MAXIM - Dallas Semiconductor

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MAX798ESE

Manufacturer: MAXIM

High-Accuracy Step-Down Controller with Synchronous Rectifier for CPU Power

Partnumber Manufacturer Quantity Availability
MAX798ESE MAXIM 4100 In Stock

Description and Introduction

High-Accuracy Step-Down Controller with Synchronous Rectifier for CPU Power The MAX798ESE is a step-down (buck) switching regulator manufactured by Maxim Integrated (now part of Analog Devices). Below are its factual specifications, descriptions, and features:

### **Specifications:**  
- **Manufacturer:** Maxim Integrated  
- **Part Number:** MAX798ESE  
- **Package:** 16-pin narrow SOIC (SO)  
- **Input Voltage Range:** 4.5V to 30V  
- **Output Voltage Range:** Adjustable from 1.25V to 10V  
- **Output Current:** Up to 5A  
- **Switching Frequency:** 300kHz  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Regulation Type:** PWM (Pulse-Width Modulation)  
- **Protection Features:** Overcurrent protection, thermal shutdown  

### **Descriptions:**  
The MAX798ESE is a high-efficiency, step-down DC-DC converter designed for applications requiring high output current with a wide input voltage range. It integrates a power MOSFET switch and provides a fixed or adjustable output voltage.  

### **Features:**  
- High-efficiency synchronous rectification  
- Adjustable or fixed output voltage  
- Internal power MOSFET switch  
- Overcurrent and thermal protection  
- Low dropout operation  
- 300kHz switching frequency for reduced filter size  
- Soft-start functionality  

This information is sourced from the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

High-Accuracy Step-Down Controller with Synchronous Rectifier for CPU Power

Alternative Part Number

  • LTC1772CS8 --: Step-down DC-DC controller in SO-8 with comparable input range and switching architecture; pin-compatible enough for many MAX798ESE designs and from a well-established supplier.
  • TPS5430DDA --: Widely available step-down converter with similar voltage and current capability; requires minor layout adjustment but offers good performance and supply security.
  • MC34063ACD --: Versatile general-purpose switching regulator in SO-8 that can be configured to match the MAX798ESE function; low cost and broad availability make it a practical fallback.

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