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MAX1634EAI+ from MAX,MAXIM - Dallas Semiconductor

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MAX1634EAI+

Manufacturer: MAX, MAXIM

Multi Output, Low-Noise Power Supply Controllers for Notebook Computers

Partnumber Manufacturer Quantity Availability
MAX1634EAI+,MAX1634EAI MAX, MAXIM 130 In Stock

Description and Introduction

Multi Output, Low-Noise Power Supply Controllers for Notebook Computers The MAX1634EAI+ is a high-efficiency, step-down DC-DC converter manufactured by **MAXIM Integrated** (now part of Analog Devices). Below are its key specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:  

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 30V  
- **Output Voltage Range:** Adjustable from 1.25V to 5.5V  
- **Output Current:** Up to 5A  
- **Switching Frequency:** 300kHz (fixed)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 28-pin SSOP (Shrink Small Outline Package)  
- **Regulation Type:** PWM (Pulse-Width Modulation)  

### **Descriptions:**  
The MAX1634EAI+ is a synchronous buck (step-down) DC-DC converter designed for high-performance power supply applications. It integrates high-side and low-side MOSFET drivers, reducing external component count. The device provides precise voltage regulation with high efficiency, making it suitable for industrial, automotive, and computing applications.  

### **Features:**  
- **Wide Input Voltage Range (4.5V–30V)** – Supports various power sources.  
- **High Output Current (5A)** – Capable of driving demanding loads.  
- **Synchronous Rectification** – Improves efficiency compared to non-synchronous designs.  
- **Adjustable Output Voltage (1.25V–5.5V)** – Set via external resistors.  
- **Overcurrent and Thermal Protection** – Enhances system reliability.  
- **Soft-Start Function** – Reduces inrush current during startup.  
- **Low Dropout Operation** – Maintains regulation even when input voltage is close to output.  

This information is strictly based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

Multi Output, Low-Noise Power Supply Controllers for Notebook Computers

Alternative Part Number

  • LTC1736CG --: Dual synchronous step-down controller with similar function and pin-compatible architecture, widely used as a MAX1634 replacement in notebook power supplies.
  • TPS51120PW --: Dual-channel synchronous buck controller covering similar input/output ranges and features, suitable for the same portable power applications.
  • ISL6237IRZ --: Dual synchronous buck controller with comparable voltage range and current-mode control, a viable alternative for MAX1634-based designs.
  • ISL6227CAZ --: Dual-channel synchronous buck PWM controller with similar voltage-mode architecture and SSOP package, suitable for the same power rail applications.

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