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LM2661M from NS,National Semiconductor

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LM2661M

Manufacturer: NS

Switched Capacitor Voltage Converter

Partnumber Manufacturer Quantity Availability
LM2661M NS 6400 In Stock

Description and Introduction

Switched Capacitor Voltage Converter The LM2661M is a CMOS charge-pump voltage converter manufactured by National Semiconductor (NS).  

### **Specifications:**  
- **Input Voltage Range:** 1.5V to 5.5V  
- **Output Voltage Options:**  
  - Doubles input voltage (e.g., 3V to 6V)  
  - Inverts input voltage (e.g., 5V to -5V)  
- **Output Current:** Up to 40mA (typical)  
- **Operating Frequency:** 160kHz (typical)  
- **Efficiency:** Up to 90% (depending on load and configuration)  
- **Low Power Consumption:** 300µA (typical operating current)  
- **Shutdown Current:** <1µA  
- **Package:** SOIC-8  

### **Descriptions:**  
The LM2661M is a switched-capacitor voltage converter that can generate either a doubled or inverted voltage from a single supply. It requires minimal external components (only two flying capacitors) and is suitable for low-power applications.  

### **Features:**  
- **Wide Input Voltage Range:** Operates from 1.5V to 5.5V  
- **Voltage Doubling and Inversion:** Configurable for step-up or inverting applications  
- **Low External Component Count:** Only two capacitors needed  
- **Low Power Consumption:** Ideal for battery-powered devices  
- **Shutdown Mode:** Reduces current to <1µA  
- **High Efficiency:** Optimized for low-power applications  

This device is commonly used in portable electronics, LCD bias supplies, and other applications requiring small, efficient voltage conversion.

Application Scenarios & Design Considerations

Switched Capacitor Voltage Converter

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