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MAX1632CAI

Manufacturer: MAXIM, MAX

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

Partnumber Manufacturer Quantity Availability
MAX1632CAI MAXIM, MAX 3197 In Stock

Description and Introduction

Multi-Output / Low-Noise Power-Supply Controllers for Notebook Computers The MAX1632CAI is a step-down controller manufactured by Maxim Integrated (now part of Analog Devices). Below are its key specifications, descriptions, and features based on factual information:

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 30V  
- **Output Voltage Range:** Adjustable from 1.25V to 5.5V (fixed or adjustable via external resistors)  
- **Switching Frequency:** 200kHz (fixed)  
- **Output Current:** Up to 20A (with external MOSFETs)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 28-pin SSOP (Shrink Small Outline Package)  

### **Descriptions:**  
The MAX1632CAI is a high-efficiency, step-down DC-DC controller designed for high-current, low-voltage applications. It provides precise regulation and supports synchronous rectification for improved efficiency. The device is commonly used in power supplies for notebooks, portable devices, and embedded systems.  

### **Features:**  
- **Wide Input Voltage Range (4.5V–30V)** – Suitable for various power sources.  
- **Adjustable/Fixed Output Voltage** – Supports preset or user-defined outputs.  
- **Synchronous Rectification** – Enhances efficiency by reducing power loss.  
- **Soft-Start Function** – Prevents inrush current at startup.  
- **Overcurrent and Overtemperature Protection** – Ensures safe operation.  
- **PWM (Pulse-Width Modulation) Control** – Provides stable voltage regulation.  
- **External MOSFET Drive** – Allows high-current output with external power components.  

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

Application Scenarios & Design Considerations

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

Alternative Part Number

  • LTC3728LCGN --: Dual synchronous step-down controller with similar multi-output function and comparable input range; a common cross for MAX1632-class notebook power controllers.
  • TPS51123RGER --: Dual-channel synchronous buck controller for notebook power rails, offering similar dual-output regulation and widely used as a MAX1632 substitute.
  • ISL6237IRZ --: Dual-output step-down controller designed for notebook systems with comparable topology and voltage requirements, suitable as a functional replacement.
  • LT1580CT --: Multi-output power supply controller with similar function and pinout compatibility for notebook CPU supply applications.
  • TPS51020PWP --: Dual synchronous buck controller offering comparable multi-output regulation and widely used as a MAX1632 substitute.
  • ISL6520ACBZ --: Single/dual PWM controller with similar voltage-mode architecture suitable for replacing the MAX1632 in power supply designs.

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