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LP5527 Datasheet, PDF (9/21 Pages) National Semiconductor (TI) – Tiny LED Driver for Camera Flash and 4 LEDs with I2C Programmability, Connectivity Test and Audio Synchronization
Boost Converter Typical Performance Characteristics
TJ = 25oC. Unless otherwise noted, typical performance characteristics apply to the LP5527 Block Diagram with: VIN = 3.6V, VOUT
= 5.0V, CIN = 10 µF, COUT1 = 10 µF, COUT2 = 10 µF, CVDD_IO = 100 nF, CVREF = 100 nF, CVDDA = 4.7 µF, CVDD1 = 100 nF, CVDD2
= 100 nF, L1 = 4.7 µH (Note 9).
Boost Converter Efficiency
Boost Typical Waveforms at 100 mA Load
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Battery Current vs Voltage
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Boost Frequency vs RT Resistor
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Boost Line Regulation 3.0V - 3.6V, no load
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Boost Startup Time with No Load
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9
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