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LM2831ZMFX from NS,National Semiconductor

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LM2831ZMFX

Manufacturer: NS

High Frequency 1.5A Load - Step-Down DC-DC Regulator

Partnumber Manufacturer Quantity Availability
LM2831ZMFX NS 498 In Stock

Description and Introduction

High Frequency 1.5A Load - Step-Down DC-DC Regulator The LM2831ZMFX is a step-down DC-DC converter manufactured by National Semiconductor (NS).  

### **Specifications:**  
- **Input Voltage Range:** 3V to 5.5V  
- **Output Voltage Range:** Adjustable from 0.8V to 3.3V (fixed options available)  
- **Output Current:** Up to 1.5A  
- **Switching Frequency:** 1.6MHz  
- **Efficiency:** Up to 95%  
- **Package:** SOT-23-5 (Thin SOT)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Features:**  
  - Integrated power MOSFETs  
  - Internal compensation  
  - Soft-start function  
  - Overcurrent and thermal protection  
  - Low shutdown current (<1µA)  

### **Descriptions and Features:**  
The LM2831ZMFX is a high-efficiency, step-down DC-DC converter designed for low-voltage applications. It integrates a PWM controller, power MOSFETs, and compensation circuitry, reducing external component count. The fixed high switching frequency (1.6MHz) allows for small external components, making it suitable for space-constrained designs. It includes protection features such as thermal shutdown and current limiting for reliable operation.  

This device is commonly used in portable electronics, networking equipment, and industrial applications requiring efficient power conversion.  

(Source: National Semiconductor Datasheet)

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