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MAX253EUA+ from MAXIM,MAXIM - Dallas Semiconductor

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MAX253EUA+

Manufacturer: MAXIM

1W Primary-Side Transformer H-Bridge Driver for Isolated Supplies

Partnumber Manufacturer Quantity Availability
MAX253EUA+,MAX253EUA MAXIM 300 In Stock

Description and Introduction

1W Primary-Side Transformer H-Bridge Driver for Isolated Supplies The **MAX253EUA+** is a power management IC manufactured by **Maxim Integrated** (now part of Analog Devices). Below are its specifications, descriptions, and features based on available data:

### **Specifications:**
- **Manufacturer:** Maxim Integrated  
- **Category:** Power Management IC  
- **Package:** 8-pin μMAX (MicroMAX)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Supply Voltage (VCC):** 4.5V to 5.5V  
- **Output Voltage:** Adjustable (depends on external components)  
- **Switching Frequency:** 500kHz (typical)  
- **Output Current:** Up to 1A (with external MOSFET)  
- **Efficiency:** High efficiency (depends on configuration)  

### **Description:**
The **MAX253EUA+** is a **PWM (Pulse-Width Modulation) controller** designed for **DC-DC converter** applications. It provides a compact and efficient solution for power supply designs, supporting step-up (boost), step-down (buck), and flyback topologies. The IC includes an integrated **MOSFET driver**, enabling high-current switching with external power transistors.

### **Features:**
- **Adjustable Output Voltage** – Configurable via external resistors.  
- **High Switching Frequency (500kHz)** – Allows for smaller external components.  
- **Integrated MOSFET Driver** – Supports external N-channel MOSFETs for high-current applications.  
- **Low Standby Current** – Enhances efficiency in low-power modes.  
- **Soft-Start Function** – Reduces inrush current during startup.  
- **Overcurrent Protection** – Safeguards against excessive load conditions.  
- **Wide Input Voltage Range** – Operates from 4.5V to 5.5V.  
- **Compact μMAX Package** – Space-saving 8-pin design.  

This IC is commonly used in **battery-powered systems, industrial controls, and telecom power supplies** where efficient DC-DC conversion is required.  

(Note: For exact performance details, refer to the official datasheet.)

Application Scenarios & Design Considerations

1W Primary-Side Transformer H-Bridge Driver for Isolated Supplies

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