Voltage Dropout (Max) is 0.35V @ 400mA - PMIC - Voltage Regulators - Linear Distributor - RT9043GB RT9053AGB RT9053AZQW

Part Number	Manufacturer / Brand	Brife Description	Part Status	Output Configuration	Output Type	Number of Regulators	Voltage - Input (Max)	Voltage - Output (Min/Fixed)	Voltage - Output (Max)	Voltage Dropout (Max)	Current - Output	Current - Quiescent (Iq)	Current - Supply (Max)	PSRR	Control Features	Protection Features	Operating Temperature	Mounting Type	Package / Case	Supplier Device Package
RT9043GB	Richtek USA Inc.	IC Regulators LIN POS ADJ 400MA SOT23-5	Active	Positive	Adjustable	1	5.5V	1.2V	5V	0.35V @ 400mA	400mA	50µA	-	67dB ~ 56dB (1kHz ~ 10kHz)	Enable	Over Current	-40°C ~ 85°C	Surface Mount	SC-74A, SOT-753	SOT-23-5
RT9053AGB	Richtek USA Inc.	IC Regulators LIN POS ADJ 400MA SOT23-5	Discontinued at -	Positive	Adjustable	1	5.5V	0.8V	5.15V	0.35V @ 400mA	400mA	50µA	-	56dB ~ 35dB (1kHz ~ 10kHz)	Enable	Over Current, Over Temperature	-40°C ~ 85°C	Surface Mount	SC-74A, SOT-753	SOT-23-5
RT9053AZQW	Richtek USA Inc.	IC Regulators LIN POS ADJ 400MA 6WDFN	Active	Positive	Adjustable	1	5.5V	0.8V	5.15V	0.35V @ 400mA	400mA	50µA	-	56dB ~ 35dB (1kHz ~ 10kHz)	Enable	Over Current, Over Temperature	-40°C ~ 85°C	Surface Mount	6-WDFN Exposed Pad	6-WDFN (2x2)