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LTC3577-4

Linear Technology
Part Number LTC3577-4
Manufacturer Linear Technology
Description Highly Integrated Portable Product PMIC
Published Aug 28, 2009
Detailed Description LTC3577-3/LTC3577-4 Highly Integrated Portable Product PMIC Features n Full Featured Li-Ion/Polymer Charger/PowerPath...
Datasheet PDF File LTC3577-4 PDF File

LTC3577-4
LTC3577-4

Overview
LTC3577-3/LTC3577-4 Highly Integrated Portable Product PMIC Features n Full Featured Li-Ion/Polymer Charger/PowerPath™ Controller with Instant-On Operation n Triple Adjustable High Efficiency Step-Down Switching Regulators (800mA, 500mA, 500mA IOUT) n I2C Adjustable SW Slew Rates for EMI Reduction n High Temperature Battery Voltage Reduction Improves Safety and Reliability n Overvoltage Protection Controller for USB (VBUS)/Wall Inputs Provide Protection to 30V n Integrated 40V Series LED Back Light Driver with 60dB Brightness Control and Gradation via I2C n 1.
5A Maximum Charge Current with Thermal Limiting n Battery Float Voltage: 4.
2V (LTC3577-3) 4.
1V (LTC3577-4) n Pushbutton ON/OFF Control with System Reset n Dual 150mA Current Limited LDOs n Start-Up Timing Compatible with SiRF Atlas IV Processor n Small 4mm × 7mm 44-Pin QFN Package Applications n PNDs, DMB/DVB-H, Digital/Satellite Radio, Media Players n Portable Industrial/Medical Products n Other USB-Based H...


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