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MAX5091AATA+T from MAXIM,MAXIM - Dallas Semiconductor

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MAX5091AATA+T

Manufacturer: MAXIM

28V, 100mA, Low-Quiescent-Current LDO with Reset and Power-Fail Input/Output

Partnumber Manufacturer Quantity Availability
MAX5091AATA+T MAXIM 13 In Stock

Description and Introduction

28V, 100mA, Low-Quiescent-Current LDO with Reset and Power-Fail Input/Output The MAX5091AATA+T is a high-voltage, current-mode DC-DC converter manufactured by Maxim Integrated. Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 76V  
- **Output Voltage Range:** Adjustable via external resistors  
- **Switching Frequency:** 100kHz to 500kHz (adjustable)  
- **Peak Output Current:** Up to 1A  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 8-pin TDFN (3mm x 3mm)  

### **Descriptions:**  
The MAX5091AATA+T is a versatile, high-efficiency step-down (buck) DC-DC converter designed for industrial, automotive, and telecom applications. It integrates a high-side N-channel MOSFET and supports wide input voltage ranges, making it suitable for harsh environments.  

### **Features:**  
- **Wide Input Voltage Range (4.5V to 76V)** – Supports high-voltage applications.  
- **Adjustable Switching Frequency (100kHz–500kHz)** – Allows optimization for efficiency and component size.  
- **Integrated High-Side MOSFET** – Simplifies design and reduces external components.  
- **Current-Mode Control** – Provides fast transient response and stable operation.  
- **Programmable Soft-Start** – Reduces inrush current during startup.  
- **Thermal Shutdown & Overcurrent Protection** – Enhances system reliability.  
- **Low Quiescent Current (100µA typ.)** – Improves efficiency in light-load conditions.  

This device is ideal for applications requiring high input voltage tolerance and efficient power conversion.

Application Scenarios & Design Considerations

28V, 100mA, Low-Quiescent-Current LDO with Reset and Power-Fail Input/Output

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