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MAX797CSE from MAX,MAXIM - Dallas Semiconductor

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MAX797CSE

Manufacturer: MAX, ADI, MAXIM

Step-Down Controllers with Synchronous Rectifier for CPU Power

Partnumber Manufacturer Quantity Availability
MAX797CSE MAX, ADI, MAXIM 5309 In Stock

Description and Introduction

Step-Down Controllers with Synchronous Rectifier for CPU Power The **MAX797CSE** is a power management IC manufactured by **Maxim Integrated** (now part of Analog Devices). Below are its key specifications, descriptions, and features based on available data:  

### **Specifications:**  
- **Manufacturer:** Maxim Integrated  
- **Category:** Power Management IC  
- **Type:** Switching Controller  
- **Output Type:** Adjustable  
- **Topology:** Buck, Boost, Flyback, Forward  
- **Input Voltage Range:** 4.5V to 30V  
- **Output Voltage Range:** Adjustable  
- **Switching Frequency:** Up to 300kHz  
- **Operating Temperature Range:** 0°C to +70°C  
- **Package / Case:** 16-SOIC (150mil)  

### **Descriptions:**  
The **MAX797CSE** is a high-efficiency, step-down (buck) switching regulator controller designed for DC-DC conversion applications. It supports multiple power supply topologies, including buck, boost, flyback, and forward converters. The IC is commonly used in power supply designs requiring high efficiency and flexible voltage regulation.  

### **Features:**  
- **Wide Input Voltage Range (4.5V to 30V)** – Suitable for various power sources.  
- **Adjustable Output Voltage** – Allows customization for different applications.  
- **High Switching Frequency (Up to 300kHz)** – Enables compact inductor and capacitor selection.  
- **Multiple Topology Support** – Works with buck, boost, flyback, and forward converters.  
- **Soft-Start Function** – Reduces inrush current during startup.  
- **Overcurrent Protection** – Enhances system reliability.  
- **SOIC-16 Package** – Compact and suitable for surface-mount applications.  

This information is based on the manufacturer's datasheet and technical documentation. For detailed electrical characteristics and application circuits, refer to the official datasheet.

Application Scenarios & Design Considerations

Step-Down Controllers with Synchronous Rectifier for CPU Power

Alternative Part Number

  • LT1070CT --: Widely used switching regulator IC with comparable power handling, suitable as a functional substitute in many DC-DC converter designs.
  • MC34063ACN --: Versatile general-purpose switching regulator controller that can implement similar step-up/step-down/inverting functions at lower cost.
  • LM2576T-ADJ --: Simple switcher adjustable buck regulator with integrated switch, offering an easy drop-in style alternative for similar power supply roles.
  • LTC1871CMS8 --: Current-mode boost/flyback controller with similar wide input range and gate drive, suitable replacement for step-up/SEPIC designs.
  • UC3843AN --: Industry-standard current-mode PWM controller with comparable drive capability and compensation, widely available and cost-effective.
  • SG3524N --: Classic PWM controller with dual outputs and voltage reference, usable in similar switching regulator topologies with minor circuit adjustments.
  • LTC1871EMS --: Wide input range current-mode boost/flyback controller in MSOP, functionally similar to the MAX797 step-up controller and widely available.
  • LM3478MM --: Versatile low-side N-FET boost/flyback controller with comparable input range and current-mode control, good drop-in for many MAX797 designs.
  • MC34063ACD --: Classic general-purpose DC-DC switching regulator controller covering boost, buck and inverting topologies; lower performance but a low-cost, widely available fallback for MAX797 applications.

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