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LTC3577EUFF-3#PBF from LINEAR

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LTC3577EUFF-3#PBF

Manufacturer: LINEAR

Highly Integrated Portable Product PMIC

Partnumber Manufacturer Quantity Availability
LTC3577EUFF-3#PBF,LTC3577EUFF3PBF LINEAR 2769 In Stock

Description and Introduction

Highly Integrated Portable Product PMIC The LTC3577EUFF-3#PBF is a product from **Linear Technology (now part of Analog Devices)**.  

### **Specifications:**  
- **Manufacturer:** Linear Technology (Analog Devices)  
- **Part Number:** LTC3577EUFF-3#PBF  
- **Package:** 24-Lead QFN (4mm x 4mm)  
- **Type:** USB Power Manager and Li-Ion/Polymer Battery Charger  
- **Input Voltage Range:** 4.35V to 6V (USB-compatible)  
- **Battery Charge Voltage:** Programmable up to 4.2V  
- **Charge Current:** Up to 950mA (programmable)  
- **Output Voltage:** Adjustable (buck-boost regulator)  
- **Efficiency:** Up to 96%  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**  
The LTC3577EUFF-3#PBF is a highly integrated **power management IC** designed for **USB-powered applications**. It combines a **battery charger**, **buck-boost regulator**, and **power path control** to efficiently manage power from a USB source while charging a Li-Ion/Polymer battery.  

### **Features:**  
- **Automatic Power Path Management** – Seamlessly switches between USB input and battery power.  
- **Programmable Charge Current** – Adjustable up to 950mA.  
- **High-Efficiency Buck-Boost Regulator** – Maintains regulated output even when input voltage is above or below battery voltage.  
- **Thermal Regulation** – Protects the IC from overheating.  
- **USB Compliance** – Supports 100mA/500mA/950mA USB current limits.  
- **Low Battery Disconnect** – Prevents deep discharge.  
- **Status Indicators** – Provides charge and power-good signals.  

This IC is commonly used in **portable USB-powered devices**, such as smartphones, tablets, and other battery-operated electronics.

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