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LP3913SQ-AE NOPB |LP3913SQAENOPBNSC N/a15000avaiPower Management IC (PMIC) for Flash Memory Based Portable Media Players 48-WQFN


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 ..
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LP3913SQ-AE NOPB
Power Management IC for Flash Memory Based Portable Media Players
LP3913
www.ti.com
SNVS489I –NOVEMBER 2006–REVISED SEPTEMBER 2013
LP3913 Power Management IC for Flash Memory-Based Portable Media Players
Checkfor Samples: LP3913
1FEATURES APPLICATIONS 2 Low-Dropout Regulators-- LDO1is Used for • Flash-Based Portable Media Players
General Purpose Applications, LDO2is Used • Portable Gaming Devicesfor Low-Noise Analog Applications. Both • Portable Navigation SystemsLDOs Have Programmable Output Voltages. Green and Red LED Charger Status Drivers DESCRIPTION 4-Channel 8-Bit Dual Slope A/D Converter
The LP3913 isa programmable system power
management unit thatis optimized for Flash Memory• 3 High-Efficiency DVS Buck Converters based Portable Media Players.• 400 kHzI2C Compatible Interface
The LP3913 incorporates2 low-dropout LDO voltage• Linear Constant-Current/Constant-Voltage regulators,3 integrated Buck DC/DC converters withCharger for Single Cell Lithium-Ion Batteries Dynamic Voltage Scaling (DVS),a 4-channel 8-bit• USB and Adapter Charging A/D converter, anda dual source Li-Ion/polymer System Power Supply Management battery charger. The charger has the capabilityto
charge and maintaina single cell battery froma• 6x6x 0.8 mm 48 WQFN Package regulated wall adapter or USB power. When both• Voltage and Thermal Supervisory Circuits USB and adapter sources are present, then the Continuous Battery Voltage Monitoring adapter source takes precedence and switching
between USB and adapter power sources is• Interrupt Request Output with8 Sources seamless.In addition, the battery charger supports• LP3913is Pin-for-Pin and Software-Compatible power routing, which allows system usagewith the LP3910 Hard Drive Based PMIC immediately after an external power source has been
detected. The LP3913 also incorporates someKEY SPECIFICATIONS advanced battery management functions such as
battery temperature measurement, reverse current• LDO1: 150 mA, 1.2V–3.3V blocking for USB, LED charger status indication,• LDO2: 150 mA, 1.3V–3.3V thermally regulated internal power FETs, battery Buck1: 600 mA, 0.8V–2.0V voltage monitoring, over-current protection anda
10–hour safety timer.• Buck2: 600 mA, 1.8V–3.3V Buck3: 500 mA, 1.8V–3.3V The 4-channel A/D converter measures the battery
voltage and charge current, which can be used for Resistance fuel gauging. Two undedicated channels canbe used Full-Rate Charge Current to measure other analog parameters such as discharge current, battery temperature, keyboard 0.1C EOC Current resistor scanning and more. 800 are programmable througha 400 kHzIC compatible interface. The LP3913is thermally-enhanced Selectable 4.1V, 6x6x0.8 mm 48 WQFN and an ambient rangeof –40°C +85°C.
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