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MAX5909UEE from MAX,MAXIM - Dallas Semiconductor

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MAX5909UEE

Manufacturer: MAX, MAXIM

Low-Voltage / Dual Hot-Swap Controllers/Power Sequencers
Partnumber Manufacturer Quantity Availability
MAX5909UEE MAX, MAXIM 324 In Stock

Description and Introduction

Low-Voltage / Dual Hot-Swap Controllers/Power Sequencers The MAX5909UEE is a power management IC manufactured by Maxim Integrated (now part of Analog Devices). Below are its key specifications, descriptions, and features based on factual data:

### **Specifications:**  
- **Manufacturer:** Maxim Integrated (now Analog Devices)  
- **Part Number:** MAX5909UEE  
- **Package:** 16-pin QSOP (QSOP-16)  
- **Input Voltage Range:** 4.5V to 72V  
- **Output Voltage Range:** Programmable via external resistors  
- **Output Current:** Up to 1.5A  
- **Switching Frequency:** Adjustable (300kHz to 2MHz)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**  
The MAX5909UEE is a high-efficiency, step-down DC-DC converter designed for industrial, automotive, and telecom applications. It features a wide input voltage range, making it suitable for harsh environments. The device integrates a synchronous rectifier, reducing the need for external diodes and improving efficiency.  

### **Features:**  
- **Wide Input Voltage Range (4.5V to 72V)** – Supports high-voltage applications.  
- **Adjustable Output Voltage** – Programmable via external resistors.  
- **High Efficiency (Up to 95%)** – Minimizes power loss.  
- **Synchronous Rectification** – Eliminates the need for an external Schottky diode.  
- **Adjustable Switching Frequency (300kHz to 2MHz)** – Optimizes performance for different applications.  
- **Overcurrent & Thermal Protection** – Enhances system reliability.  
- **Low Quiescent Current** – Improves efficiency in light-load conditions.  
- **Soft-Start Function** – Reduces inrush current during startup.  

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

Application Scenarios & Design Considerations

Low-Voltage / Dual Hot-Swap Controllers/Power Sequencers

Alternative Part Number

  • LTC4365ITS8 --: Hot-swap/overvoltage protection controller in a similar function class; different series and prefix, suitable as a functional substitute with design verification.
  • TPS2419D --: ORing/hot-swap controller offering comparable power-path management; different naming and series, good second-choice alternative.
  • ISL6146BIRZ --: Hot-swap controller with similar application role; distinct series name, usable as a third alternative after checking electrical specs.
  • LTC4365CTS8 --: Overvoltage/undervoltage protection controller with similar hot-swap protection function in a small package, from a different series and vendor.
  • TPS2410PWR --: Hot-swap power controller offering comparable supply monitoring and protection, widely available and from a different naming series.
  • LM5069MM-1 --: Hot-swap controller with inrush current limiting and fault protection, functionally similar and clearly distinct from the MAX5909 series.

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