STM32L151XE Datasheet, PDF (58/134 Pages) STMicroelectronics – Ultra-low-power platform

Electrical characteristics
STM32L151xE STM32L152xE
6.1.7
Optional LCD power supply scheme
Figure 12. Optional LCD power supply scheme
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1. Option 1: LCD power supply is provided by a dedicated VLCD supply source, VSEL switch is open.
2. Option 2: LCD power supply is provided by the internal step-up converter, VSEL switch is closed, an
external capacitance is needed for correct behavior of this converter.
Current consumption measurement
Figure 13. Current consumption measurement scheme
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DocID025433 Rev 8