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LTC1981ES5 from LINEAR

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LTC1981ES5

Manufacturer: LINEAR

Single and Dual Micropower High Side Switch Controllers in SOT-23

Partnumber Manufacturer Quantity Availability
LTC1981ES5 LINEAR 399 In Stock

Description and Introduction

Single and Dual Micropower High Side Switch Controllers in SOT-23 The LTC1981ES5 is a low-power, high-efficiency charge pump DC/DC converter manufactured by Linear Technology (now part of Analog Devices).  

### **Specifications:**  
- **Input Voltage Range:** 1.8V to 5.5V  
- **Output Voltage:** Adjustable (up to ±5.5V)  
- **Output Current:** Up to 10mA  
- **Switching Frequency:** 250kHz (typical)  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOT-23-5  

### **Descriptions:**  
The LTC1981ES5 is designed for applications requiring low-power voltage inversion or doubling. It uses a charge pump architecture, eliminating the need for inductors. The device is optimized for battery-powered systems, portable devices, and space-constrained applications.  

### **Features:**  
- No inductors required (charge pump design)  
- Low quiescent current (50µA typical)  
- Adjustable output voltage  
- Automatic shutdown when disabled  
- Compact SOT-23-5 package  
- Low output ripple  

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

Application Scenarios & Design Considerations

Single and Dual Micropower High Side Switch Controllers in SOT-23
Partnumber Manufacturer Quantity Availability
LTC1981ES5 LT 152 In Stock

Description and Introduction

Single and Dual Micropower High Side Switch Controllers in SOT-23 The LTC1981ES5 is a high-efficiency, fixed frequency charge pump DC/DC converter manufactured by Linear Technology (now part of Analog Devices).  

### **Specifications:**  
- **Input Voltage Range:** 1.8V to 5.5V  
- **Output Voltage:** -Vin (Inverting) or 2×Vin (Doubling)  
- **Output Current:** Up to 50mA  
- **Switching Frequency:** 250kHz  
- **Efficiency:** Up to 96%  
- **Low Quiescent Current:** 100µA (Typical)  
- **Shutdown Current:** <1µA  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOT-23-5  

### **Descriptions:**  
The LTC1981ES5 is a versatile charge pump DC/DC converter that can generate a negative output voltage (-Vin) or double the input voltage (2×Vin). It operates with high efficiency and requires only three external capacitors, making it suitable for space-constrained applications.  

### **Features:**  
- No inductors required  
- Fixed 250kHz switching frequency  
- Low ripple and noise  
- Automatic shutdown when input is removed  
- Small footprint (SOT-23-5 package)  
- Ideal for generating bias supplies in portable and battery-powered applications  

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

Application Scenarios & Design Considerations

Single and Dual Micropower High Side Switch Controllers in SOT-23

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