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LTC1555L from LT

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LTC1555L

Manufacturer: LT

SIM Power Supply and Level Translator

Partnumber Manufacturer Quantity Availability
LTC1555L LT 914 In Stock

Description and Introduction

SIM Power Supply and Level Translator The LTC1555L is a low-power, high-efficiency charge pump DC/DC converter manufactured by Linear Technology (now part of Analog Devices).  

### **Key Specifications:**  
- **Input Voltage Range:** 1.8V to 5.5V  
- **Output Voltage:** Adjustable (via external resistors) or fixed at 3.3V  
- **Output Current:** Up to 100mA  
- **Efficiency:** Up to 90%  
- **Switching Frequency:** 300kHz  
- **Low Quiescent Current:** 50µA (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-Lead SOIC  

### **Descriptions and Features:**  
- **Charge Pump Architecture:** Doubles or inverts input voltage without inductors.  
- **Low Noise:** No switching noise at the input due to phase-shifted operation.  
- **Automatic Load Disconnect:** Prevents battery drain when disabled.  
- **Shutdown Mode:** Reduces supply current to <1µA.  
- **Soft-Start:** Limits inrush current during startup.  
- **Applications:** Battery-powered devices, portable electronics, LCD bias supplies, and low-power systems.  

The LTC1555L is designed for space-constrained, low-power applications requiring efficient voltage conversion.

Application Scenarios & Design Considerations

SIM Power Supply and Level Translator

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