L6925D013TR vs BD8305MUV-E2

Part Number	L6925D013TR	BD8305MUV-E2
Category	PMIC - Voltage Regulators - DC DC Switching Regulators	PMIC - Voltage Regulators - DC DC Switching Regulators
Manufacturer	STMicroelectronics	Rohm Semiconductor
Description	IC REG BUCK ADJ 800MA 8MSOP	IC REG BCK BST ADJ 1A 20VQFN
Package	Tape & Reel (TR)	Cut Tape (CT)
Series	-	-
Operating Temperature	-40°C ~ 150°C (TJ)	-25°C ~ 85°C (TA)
Mounting Type	Surface Mount	Surface Mount
Package / Case	8-TSSOP, 8-MSOP (0.118\", 3.00mm Width)	20-VFQFN Exposed Pad
Supplier Device Package	8-MSOP	VQFN020V4040
Function	Step-Down	Step-Up/Step-Down
Topology	Buck	Buck-Boost
Output Type	Adjustable	Adjustable
Voltage - Output (Min/Fixed)	0.6V	2.8V
Voltage - Output (Max)	5.5V	5.2V
Current - Output	800mA	1A
Output Configuration	Positive	Positive
Number of Outputs	1	1
Frequency - Switching	600kHz	800kHz ~ 1.2MHz
Synchronous Rectifier	Yes	No
Voltage - Input (Min)	2.7V	2.5V
Voltage - Input (Max)	5.5V	5.5V

1. ‌‌The voltage stabilizer cannot start‌?

Possible reasons include the wrong phase sequence of the input power line, the air switch in the machine is not turned on or damaged. The solution is to swap any two power connections or check whether the power line is normal, close the switch or replace the switch‌.
2. The output voltage of the voltage stabilizer deviates from the regulated value‌?

Possible reasons include no response to the adjustment potentiometer or a broken circuit board. The solution includes replacing the circuit board or potentiometer‌.
3. ‌Decrease in voltage regulator load capacity‌?

Possible reasons include defective brushes, poor contact between brushes and voltage regulator coil, etc. The solution includes replacing brushes, adjusting brush spring pressure and brush position, etc.
4. DC switching regulator overload‌?

If the load exceeds the voltage regulator's tolerance, the voltage regulator will burn out‌.