LP3910SQX-AA NOPB ,Power Management IC (PMIC) for Hard Drive Based Portable Media Players 48-WQFN -40 to 85 SNVS481M–NOVEMBER 2006–REVISED DECEMBER 20155 Device Comparison TablesTable 1. Device Default Volt ..
LP3910SQX-AA/NOPB ,Power Management IC (PMIC) for Hard Drive Based Portable Media Players 48-WQFN -40 to 85Features 2 Applications1• Two Low-Dropout Regulators With Programmable • Hard Drive-Based Media Pla ..
LP3913SQ-AE NOPB ,Power Management IC (PMIC) for Flash Memory Based Portable Media Players 48-WQFN FEATURES APPLICATIONS2• 2 Low-Dropout Regulators -- LDO1 is Used for • Flash-Based Portable Media P ..
LP3917RL-NL , CDMA Cellular Phone Power Management Unit
LP3918TLX-A NOPB ,Battery Charge Management and Regulator Unit 25-DSBGA -40 to 125Device Pin DiagramFigure 2. LP3918 25 pin DSBGA PackageTOP VIEWACOK5 LDO7 LDO6 LDO5 VIN2_NRESET PON ..
LP3921SQ , Battery Charger Management and Regulator Unit with Integrated Boomer® Audio Amplifier
LT1026IS8 ,Voltage Converter
LT1026IS8 ,Voltage Converter
LT1026IS8#PBF ,Voltage Converter
LT1027CCN8-5#PBF ,Precision 5 Volt Reference
LT1027CCS8-5#PBF ,Precision 5 Volt Reference
LT1027DCN8-5 ,Precision 5V Reference
LP3910SQ-AA/NOPB-LP3910SQX-AA NOPB-LP3910SQX-AA/NOPB
Power Management IC for Hard Drive Based Portable Media Players
USB Controller
Apps Processor
Memory
LP3910Buck2
Buck1
Battery Monitor
Product
Folder
Sample &
Buy
Technical
Documents
Tools &
Software
Support &
Community
LP3910SNVS481M –NOVEMBER 2006–REVISED DECEMBER 2015
LP3910 Power Management IC for Hard-Drive-Based Portable Media Players Features 2 Applications Two Low-Dropout Regulators With Programmable • Hard Drive-Based Media Players
Output Voltages: • Portable Gaming Players LDO1for General Purpose Applications • Portable Navigation Devices LDO2for Low-Noise Analog Applications
3 Description• Green and Red LED-Charger Status Drivers
The LP3910 isa programmable system power• 4-Channel 8-Bit Dual Slope management unit optimized for HDD-based portableAnalog-to-Digital (ADC) Converter media players. The device incorporates two low-• 2 High-Efficiency DVS Buck Converters dropout LDO voltage regulators, two integrated buck
DC-DC converters with dynamic voltage scaling• Wide Load Range Buck-Boost DC-DC Converter
(DVS), one wide load-range buck-boost DC-DC• 400-kHzI2 C-Compatible Interface converter with programmable output voltage,a 4-• Linear Constant-Current and Constant-Voltage channel, 8-bit ADC, anda dual-source lithium-ionorChargerfor Single-Cell Lithium-Ion Batteries lithium-polymer battery charger. USB and Adapter Charging The LP3910 also incorporates some advanced System Power Supply Management battery management functions such as battery
temperature measurement, reverse current blocking• Voltage and Thermal Supervisory Circuits for USB, LED-charger status indication, thermally• Continuous Battery Voltage Monitoring regulated internal power FETs, battery-voltage• Interrupt Request Output With8 Sources monitoring, overcurrent protection, anda 10-hour 50-mΩ Battery Path Resistance safety timer. The deviceis programmable througha
400-kHz I2C-compatible interface.• 100-mAto 1000-mA Full-Rate Charge Current
Using Wall Adapter The LP3910is availableina thermally-enhanced
6-mm× 6-mm× 0.8-mm 48-pin WQFN package.• Selectable 0.05C and 0.1C End-of-Charge (EOC)
Current
Device Information(1)• USB Current Limitsof 100, 500, and 800 mA• USB Pre-Qualification Currentof50 mA• Selectable 4.1-V, 4.2-Vor 4.38-V Battery-
(1) Forall available packages, see the orderable addendumatTermination Voltages the endofthe data sheet.• 0.35% Battery-Termination Accuracy ±1 LSB INL/DNLon 8-Bit ADC
Simplified Block Diagram
