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LM2681M6X from NSC,National Semiconductor

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LM2681M6X

Manufacturer: NSC

Switched Capacitor Voltage Converter

Partnumber Manufacturer Quantity Availability
LM2681M6X NSC 1757 In Stock

Description and Introduction

Switched Capacitor Voltage Converter The LM2681M6X is manufactured by National Semiconductor (NSC).  

### **Specifications:**  
- **Type:** Switched Capacitor Voltage Converter  
- **Input Voltage Range:** 2.2V to 5.5V  
- **Output Voltage Options:** Adjustable or Fixed (±5V, +5V, +10V)  
- **Output Current:** Up to 50mA  
- **Switching Frequency:** 160kHz (typical)  
- **Package:** SOT-23-6  
- **Operating Temperature Range:** -40°C to +85°C  
- **Efficiency:** Up to 90%  
- **Low Quiescent Current:** 0.5mA (typical)  

### **Descriptions and Features:**  
- The LM2681M6X is a switched capacitor voltage doubler/inverter that provides regulated output voltages.  
- It can generate positive or negative outputs from a single input supply.  
- Features low output ripple and low EMI due to its internal oscillator.  
- Includes built-in soft-start to reduce inrush current.  
- Suitable for battery-powered applications due to its low quiescent current.  
- Compact SOT-23-6 package makes it ideal for space-constrained designs.  

This information is based on the manufacturer's datasheet.

Application Scenarios & Design Considerations

Switched Capacitor Voltage Converter
Partnumber Manufacturer Quantity Availability
LM2681M6X NS 2439 In Stock

Description and Introduction

Switched Capacitor Voltage Converter The LM2681M6X is manufactured by National Semiconductor (NS).  

**Specifications:**  
- **Type:** Switched Capacitor Voltage Converter  
- **Input Voltage Range:** 2.5V to 5.5V  
- **Output Voltage Options:** Fixed (e.g., -5V, -3.3V, adjustable via external resistors)  
- **Output Current:** Up to 50mA  
- **Switching Frequency:** 160kHz (typical)  
- **Efficiency:** Up to 90%  
- **Package:** SOT-23-6  
- **Operating Temperature Range:** -40°C to +85°C  

**Descriptions and Features:**  
- The LM2681M6X is a switched capacitor voltage inverter that generates a negative output from a positive input.  
- It requires only two external flying capacitors for operation.  
- Low quiescent current (typically 0.5mA).  
- Includes a low-battery detector with adjustable threshold.  
- Shutdown mode reduces supply current to <1µA.  
- Suitable for portable and battery-powered applications.  

(Source: National Semiconductor datasheet)

Application Scenarios & Design Considerations

Switched Capacitor Voltage Converter
Partnumber Manufacturer Quantity Availability
LM2681M6X NS国半 28000 In Stock

Description and Introduction

Switched Capacitor Voltage Converter The LM2681M6X is a switched capacitor voltage converter manufactured by National Semiconductor (NS国半).  

### **Specifications:**  
- **Input Voltage Range:** 2.5V to 5.5V  
- **Output Voltage Options:** +5V (fixed) or adjustable  
- **Output Current:** Up to 50mA  
- **Switching Frequency:** 160kHz (typical)  
- **Efficiency:** Up to 90%  
- **Package:** SOT-23-6  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions and Features:**  
- **Switched Capacitor Voltage Doubler:** Converts input voltage to a higher output voltage without an inductor.  
- **Low Power Consumption:** Ideal for battery-powered applications.  
- **Low External Component Count:** Requires only flying capacitors and input/output capacitors.  
- **Shutdown Mode:** Reduces power consumption when disabled.  
- **Soft-Start Feature:** Limits inrush current during startup.  
- **Applications:** Used in portable devices, battery-powered systems, and low-power voltage conversion circuits.  

This information is sourced from the manufacturer's datasheet.

Application Scenarios & Design Considerations

Switched Capacitor Voltage Converter
Partnumber Manufacturer Quantity Availability
LM2681M6X NATIONAL 4000 In Stock

Description and Introduction

Switched Capacitor Voltage Converter The LM2681M6X is a switched capacitor voltage converter manufactured by National Semiconductor.  

### **Specifications:**  
- **Manufacturer:** National Semiconductor  
- **Type:** Switched Capacitor Voltage Converter  
- **Package:** SOT-23-6  
- **Input Voltage Range:** 2.5V to 5.5V  
- **Output Voltage Options:** Fixed +5V or Adjustable  
- **Output Current:** Up to 50mA  
- **Switching Frequency:** 160kHz (typical)  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Features:** Low power consumption, no inductors required  

### **Descriptions and Features:**  
- The LM2681M6X is a charge-pump voltage doubler that generates a regulated output voltage from an input supply.  
- It eliminates the need for an inductor, making it suitable for space-constrained applications.  
- The device operates with a fixed switching frequency of 160kHz, minimizing output ripple.  
- It includes thermal shutdown and current-limiting protection.  
- Applications include battery-powered devices, portable electronics, and low-power voltage boosting.  

(Note: National Semiconductor was acquired by Texas Instruments in 2011.)

Application Scenarios & Design Considerations

Switched Capacitor Voltage Converter
Partnumber Manufacturer Quantity Availability
LM2681M6X NSC 671 In Stock

Description and Introduction

Switched Capacitor Voltage Converter The LM2681M6X is a switched capacitor voltage converter manufactured by National Semiconductor (NSC). Below are its key specifications, descriptions, and features:  

### **Specifications:**  
- **Input Voltage Range:** 2.5V to 5.5V  
- **Output Voltage Options:** +5V (fixed) 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  
- **Package:** SOT-23-6  

### **Descriptions:**  
- The LM2681M6X is a charge pump DC-DC converter that generates a regulated output voltage from an input supply.  
- It eliminates the need for inductors, making it suitable for space-constrained applications.  
- The device includes an internal oscillator and feedback control for stable output regulation.  

### **Features:**  
- **No Inductors Required** – Uses only external capacitors for operation.  
- **Low Quiescent Current:** 120µA (typical)  
- **Shutdown Mode:** Reduces current consumption to <1µA when disabled.  
- **Short-Circuit Protection** – Built-in protection against output shorts.  
- **Adjustable Output** – Can be configured for voltages other than +5V using external resistors.  

This information is based solely on the manufacturer's datasheet for the LM2681M6X.

Application Scenarios & Design Considerations

Switched Capacitor Voltage Converter

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