LTC3677-3 Overview
Description
The LTC®3677-3 is a highly integrated power management IC for single-cell Li-Ion/Polymer battery applications. It includes a PowerPath manager with automatic load prioritization, a battery charger, an ideal diode, input overvoltage protection and numerous other internal protection features.
Key Features
- Triple Adjustable High Efficiency Step-Down Switching Regulators (800mA, 500mA, 500mA IOUT)
- I2C Adjustable SW Slew Rates for EMI Reduction
- High Temperature Battery Voltage Reduction Improves Safety and Reliability
- Overvoltage Protection Controller for USB (VBUS)/Wall Inputs Provide Protection to 30V n 1.5A Maximum Charge Current with Thermal Limiting
- Battery Float Voltage: 4.2V
- Pushbutton ON/OFF Control with System Reset
- Dual 150mA Current Limited LDOs
- Start-Up Timing Compatible with SiRF Atlas IV Processor
- Small 4mm × 7mm 44-Pin QFN Package
