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LTC3455EUF-1#PBF from LINEAR

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LTC3455EUF-1#PBF

Manufacturer: LINEAR

Dual DC/DC Converter with USB Power Manager and Li-Ion Battery Charger

Partnumber Manufacturer Quantity Availability
LTC3455EUF-1#PBF,LTC3455EUF1PBF LINEAR 34 In Stock

Description and Introduction

Dual DC/DC Converter with USB Power Manager and Li-Ion Battery Charger The LTC3455EUF-1#PBF is a synchronous buck-boost DC/DC converter manufactured by **Linear Technology (now part of Analog Devices)**.  

### **Specifications:**  
- **Input Voltage Range:** 2.7V to 5.5V  
- **Output Voltage:** Adjustable from 2.5V to 5.5V  
- **Output Current:** Up to **1A**  
- **Switching Frequency:** 1MHz  
- **Efficiency:** Up to **96%**  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 16-Lead QFN (4mm x 4mm)  
- **Control Method:** Synchronous PWM  
- **Low Quiescent Current:** 40µA (typical)  

### **Descriptions:**  
- The LTC3455EUF-1#PBF is designed for **single-cell Li-Ion/Polymer battery applications**.  
- It provides a **regulated output voltage** even when the input voltage is above, below, or equal to the output voltage.  
- Features **automatic seamless transitions** between buck and boost modes.  

### **Features:**  
- **Buck-Boost Operation** (maintains regulation across input variations)  
- **No Schottky Diode Required** (synchronous rectification)  
- **Low Noise, Constant Frequency Operation**  
- **Power Good Indicator**  
- **Soft-Start and Short-Circuit Protection**  
- **Thermal Shutdown Protection**  
- **Small Footprint (QFN Package)**  

This IC is commonly used in **portable devices, USB-powered equipment, and battery-powered systems** requiring stable power conversion.  

*(Source: Linear Technology/Analog Devices Datasheet for LTC3455EUF-1#PBF)*

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