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LM2682MMX from NS,National Semiconductor

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LM2682MMX

Manufacturer: NS, NS/PBF

Switched Capacitor Voltage Doubling Inverter

Partnumber Manufacturer Quantity Availability
LM2682MMX NS, NS/PBF 8640 In Stock

Description and Introduction

Switched Capacitor Voltage Doubling Inverter The LM2682MMX is a dual-output switching regulator manufactured by National Semiconductor (NS).  

### **Specifications:**  
- **Input Voltage Range:** 4V to 30V  
- **Output Voltage 1 (Fixed):** 5V  
- **Output Voltage 2 (Adjustable):** 1.25V to 5.5V  
- **Switching Frequency:** 160kHz  
- **Output Current (Each Regulator):** Up to 400mA  
- **Efficiency:** Up to 85%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 10-pin MSOP  

### **Descriptions:**  
The LM2682MMX integrates two switching regulators—one fixed 5V output and one adjustable output (1.25V to 5.5V). It is designed for low-power applications requiring dual regulated outputs with high efficiency.  

### **Features:**  
- Dual-output switching regulator  
- Low quiescent current (1.5mA typical)  
- Built-in soft-start for controlled startup  
- Over-temperature protection  
- Short-circuit protection  
- Synchronizable switching frequency  

This information is based on the manufacturer's datasheet. For detailed application notes, refer to the official documentation.

Application Scenarios & Design Considerations

Switched Capacitor Voltage Doubling Inverter

Alternative Part Number

  • TPS60503DGSR --: Charge-pump voltage converter in the same function class as the LM2682, available in a similar small package and widely stocked.
  • MAX1682EUK+T --: Switched-capacitor voltage doubler/inverter offering comparable functionality and a compact SOT-23 package.
  • ICL7660SCPAZ --: Classic switched-capacitor voltage converter with similar inverting/doubling operation, useful as a functional substitute where board space allows.
  • LTC1515CS8-3.3#PBF --: Regulated charge-pump converter offering similar step-up/step-down charge pump functionality, usable as an alternative with minor circuit adjustment.

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