LP3931 Datasheet, PDF (10/17 Pages) National Semiconductor (TI) – Dual RGB LED Driver with High Current Boost DC-DC Converter

Boost Output Voltage Control
User can control the boost output voltage by 8-bit boost
output register as follows:
Register 0DH
Boost Output [7:0]
0000 0000
0000 0001
0000 0011
0000 0111
0000 1111
0001 1111
0011 1111
0111 1111
1111 1111
BOOST Output Voltage
(typical)
4.15
4.30
4.40
4.55
4.70
4.85
5.00 Default
5.15
5.30
Boost Output Voltage Control
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Boost Converter Typical Performance Characteristics V_IN = 3.6V, V_OUT = 5.0V if not
otherwise stated.
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Boost Converter Efficiency
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Boost Frequency vs RT Resistor
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Battery Current vs Voltage
www.national.com
10
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Battery Current vs Voltage