diff --git a/boards/arm/stm32h735g_disco/stm32h735g_disco.dts b/boards/arm/stm32h735g_disco/stm32h735g_disco.dts
index 4095885..91e915c 100644
--- a/boards/arm/stm32h735g_disco/stm32h735g_disco.dts
+++ b/boards/arm/stm32h735g_disco/stm32h735g_disco.dts
@@ -113,3 +113,7 @@
 	pinctrl-names = "default";
 	cd-gpios = <&gpiof 5 GPIO_ACTIVE_LOW>;
 };
+
+&lptim1 {
+	status = "okay";
+};
diff --git a/soc/arm/st_stm32/stm32h7/Kconfig.defconfig.series b/soc/arm/st_stm32/stm32h7/Kconfig.defconfig.series
index 7ec2982..e0ab16d 100644
--- a/soc/arm/st_stm32/stm32h7/Kconfig.defconfig.series
+++ b/soc/arm/st_stm32/stm32h7/Kconfig.defconfig.series
@@ -1,6 +1,7 @@
 # ST Microelectronics STM32H7 MCU line
 
 # Copyright (c) 2019 Linaro  Limited
+# Copyright (c) 2022 SILA Embedded Solutions GmbH <office@embedded-solutions.at>
 # SPDX-License-Identifier: Apache-2.0
 
 # Kconfig symbols common to STM32H7 series
@@ -16,6 +17,9 @@
 	default 0x400 if BOOTLOADER_MCUBOOT
 	default 0x0   if !BOOTLOADER_MCUBOOT
 
+config STM32_LPTIM_TIMER
+	default y if PM
+
 if ENTROPY_GENERATOR
 
 config ENTROPY_STM32_RNG