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LM2681M6 from NS,National Semiconductor

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LM2681M6

Manufacturer: NS, NSC

Switched Capacitor Voltage Converter

Partnumber Manufacturer Quantity Availability
LM2681M6 NS, NSC 2411 In Stock

Description and Introduction

Switched Capacitor Voltage Converter The LM2681M6 is a switched capacitor voltage converter manufactured by National Semiconductor (NSC). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Manufacturer:** National Semiconductor (NSC)  
- **Type:** Switched Capacitor Voltage Converter  
- **Package:** SOT-23-6  
- **Input Voltage Range:** 2.5V to 5.5V  
- **Output Voltage Options:** Fixed +5V (±4%) or Adjustable (via external resistors)  
- **Output Current:** Up to 50mA  
- **Switching Frequency:** 160kHz (typical)  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Quiescent Current:** 120µA (typical)  

### **Descriptions:**
The LM2681M6 is a charge-pump voltage doubler that generates a regulated output voltage from a single input supply. It uses a switched capacitor technique to provide a stable output without requiring an inductor. The device is designed for low-power applications requiring efficient voltage conversion.

### **Features:**
- **No Inductor Required** – Uses external capacitors for voltage conversion.  
- **Low Noise Operation** – Minimizes output ripple.  
- **Low Power Consumption** – Ideal for battery-powered applications.  
- **Fixed or Adjustable Output** – Supports a fixed +5V output or adjustable via external resistors.  
- **Short-Circuit Protection** – Includes internal current limiting.  
- **Small Form Factor** – Available in a compact SOT-23-6 package.  

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

Application Scenarios & Design Considerations

Switched Capacitor Voltage Converter

Alternative Part Number

  • TPS60500DGSR --: Charge-pump voltage converter in the same class as the LM2681, with adjustable output and wide input range; pin-compatible function in a small package.
  • MAX1682EUK+T --: Switched-capacitor voltage doubler/inverter offering similar boost function and low quiescent current, suitable as a functional replacement.
  • LM2662M/NOPB --: Switched-capacitor voltage converter from a different series with comparable current capability and simple external component requirements.
  • LTC1515CS8-3.3 --: Regulated charge-pump converter with similar input range and output capability, suitable as a functional substitute.

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