diff --git a/drivers/regulator/stpmic1_regulator.c b/drivers/regulator/stpmic1_regulator.c
index 16ba0297f709..a1f88e996cae 100644
--- a/drivers/regulator/stpmic1_regulator.c
+++ b/drivers/regulator/stpmic1_regulator.c
@@ -75,9 +75,10 @@ enum {
 #define STPMIC1_BUCK_MODE_NORMAL 0
 #define STPMIC1_BUCK_MODE_LP BUCK_HPLP_ENABLE_MASK
 
-struct regulator_linear_range buck1_ranges[] = {
-	REGULATOR_LINEAR_RANGE(600000, 0, 30, 25000),
-	REGULATOR_LINEAR_RANGE(1350000, 31, 63, 0),
+static const struct regulator_linear_range buck1_ranges[] = {
+	REGULATOR_LINEAR_RANGE(725000, 0, 4, 0),
+	REGULATOR_LINEAR_RANGE(725000, 5, 36, 25000),
+	REGULATOR_LINEAR_RANGE(1500000, 37, 63, 0),
 };
 
 struct regulator_linear_range buck2_ranges[] = {