ST X-STM32MP-MSP01, Начало работы

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2.13 LDO: LDK130
The LDK130 low drop voltage regulator provides 300 mA of maximum current from an input supply voltage in the
range of 1.9 V to 5.5 V, with a typical dropout voltage of 100 mV. It is stabilized with a ceramic capacitor on the
output. The very low drop voltage, low quiescent current and low-noise features make it suitable for low-power
battery-powered applications. An enable logic control function puts the
LDK130 in shutdown mode, allowing a
total current consumption lower than 1 μA. The device also includes the short-circuit constant current limiting and
thermal protection.
On-board sensors operate on a 1.8 V power supply. The
LDK130 is used to generate 1.8 V power supply for the
various sections.
Table 14. LDK130 details
Features Description
Order code LDK130M-R
Package SOT23-5
Operating voltage 1.9 V to 5.5 V
Figure 18. LDK130 circuit
2.14 LEDs and switches
On-board LEDs are available for visual indication. A push button switch is used for the user inputs.
Note: You can configure different hardware settings of the X-STM32MP-MSP01 board through several solder bridges,
which can be left open (not mounted) or closed (mounted).
UM3076
LDO: LDK130
UM3076 - Rev 1
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