diff --git a/drivers/clock_control/clock_stm32_ll_u5.c b/drivers/clock_control/clock_stm32_ll_u5.c
index e396e016bac..4edbb170cec 100644
--- a/drivers/clock_control/clock_stm32_ll_u5.c
+++ b/drivers/clock_control/clock_stm32_ll_u5.c
@@ -324,6 +324,10 @@ void config_src_sysclk_pll(LL_UTILS_ClkInitTypeDef s_ClkInitStruct)
 				     STM32_PLL_N_MULTIPLIER,
 				     STM32_PLL_R_DIVISOR);
 
+	LL_PWR_SetRegulVoltageScaling(LL_PWR_REGU_VOLTAGE_SCALE1);
+	while (LL_PWR_IsActiveFlag_VOS() == 0) {
+	}
+
 	if (CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC >= 55) {
 		/*
 		 * Set EPOD prescaler based on PLL1 input freq (MSI/PLLM)
diff --git a/soc/arm/st_stm32/stm32u5/soc.c b/soc/arm/st_stm32/stm32u5/soc.c
index dcce2b4fcb3..a81800dc9c0 100644
--- a/soc/arm/st_stm32/stm32u5/soc.c
+++ b/soc/arm/st_stm32/stm32u5/soc.c
@@ -59,8 +59,6 @@ static int stm32u5_init(const struct device *arg)
 	/* Disable USB Type-C dead battery pull-down behavior */
 	LL_PWR_DisableUCPDDeadBattery();
 
-	LL_PWR_SetRegulVoltageScaling(LL_PWR_REGU_VOLTAGE_SCALE1);
-
 	return 0;
 }