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MAX5091BATA+T from MAXIM,MAXIM - Dallas Semiconductor

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MAX5091BATA+T

Manufacturer: MAXIM

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

Partnumber Manufacturer Quantity Availability
MAX5091BATA+T MAXIM 6 In Stock

Description and Introduction

28V, 100mA, Low-Quiescent-Current LDO with Reset and Power-Fail Input/Output The MAX5091BATA+T is a high-voltage, current-mode DC-DC converter 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:** 6.5V to **76V** (with transient operation up to 100V).  
- **Output Voltage Range:** Adjustable from **1.25V to 76V**.  
- **Output Current:** Up to **500mA**.  
- **Switching Frequency:** **200kHz to 600kHz** (adjustable with external resistor).  
- **Efficiency:** Up to **90%**.  
- **Operating Temperature Range:** **-40°C to +125°C**.  
- **Package:** **8-pin TDFN (3x3mm)**.  
- **Protection Features:** Overcurrent, overtemperature, and undervoltage lockout (UVLO).  

### **Descriptions:**  
The MAX5091BATA+T is a **step-down (buck) DC-DC converter** designed for high-voltage industrial, automotive, and telecom applications. It integrates a **high-side N-channel MOSFET** and operates in **current-mode control** for improved transient response and stability.  

### **Features:**  
- **Wide Input Voltage Range (6.5V to 76V)** – Suitable for harsh environments.  
- **Adjustable Output Voltage (1.25V to 76V)** – Flexible for various applications.  
- **Integrated Power MOSFET** – Simplifies design and reduces external components.  
- **Current-Mode Control** – Enhances stability and load regulation.  
- **Adjustable Switching Frequency (200kHz–600kHz)** – Optimizes efficiency and reduces EMI.  
- **Thermal Shutdown & UVLO Protection** – Ensures safe operation.  
- **Low Quiescent Current (150µA)** – Improves efficiency at light loads.  

This device is commonly used in **automotive systems, industrial power supplies, and telecom infrastructure** where high input voltage and reliability are critical.  

*(Source: Maxim Integrated datasheet and product documentation.)*

Application Scenarios & Design Considerations

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

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