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MAX8640YEXT12+T from MAXIM,MAXIM - Dallas Semiconductor

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MAX8640YEXT12+T

Manufacturer: MAXIM

Tiny 500mA, 4MHz/2MHz Synchronous Step-Down DC-DC Converters

Partnumber Manufacturer Quantity Availability
MAX8640YEXT12+T MAXIM 30200 In Stock

Description and Introduction

Tiny 500mA, 4MHz/2MHz Synchronous Step-Down DC-DC Converters The MAX8640YEXT12+T is a step-down DC-DC converter manufactured by Maxim Integrated (now part of Analog Devices).  

### **Specifications:**  
- **Input Voltage Range:** 2.5V to 5.5V  
- **Output Voltage Range:** Adjustable from 0.8V to VIN  
- **Output Current:** Up to 600mA  
- **Switching Frequency:** 1MHz (typical)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 12-Pin TDFN (3mm x 3mm)  
- **Features:**  
  - Low dropout operation  
  - Internal synchronous rectifier  
  - Soft-start capability  
  - Overcurrent and thermal protection  
  - Power-good output  

### **Descriptions and Features:**  
The MAX8640YEXT12+T is a high-efficiency, step-down DC-DC converter designed for portable and battery-powered applications. It integrates synchronous rectification to minimize external components and improve efficiency. The device operates at a fixed 1MHz switching frequency, allowing the use of small inductors and capacitors.  

Key features include:  
- **Adjustable Output Voltage:** Set via external resistors.  
- **Low Dropout Operation:** Maintains regulation even when the input voltage approaches the output voltage.  
- **Power-Good Output:** Monitors the output voltage status.  
- **Protection Features:** Includes overcurrent and thermal shutdown for safe operation.  
- **Compact Package:** 12-pin TDFN for space-constrained applications.  

This device is suitable for applications such as portable electronics, handheld devices, and battery-powered systems requiring efficient power conversion.  

(Note: Always refer to the latest datasheet for detailed specifications.)

Application Scenarios & Design Considerations

Tiny 500mA, 4MHz/2MHz Synchronous Step-Down DC-DC Converters

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