TPS62203 Series

3.3-V Output, 300-mA, 95% Efficient Step-Down Converter in SOT-23

Catalog(2 parts)

Part	Supplier Device Package	Mounting Type	Frequency - Switching▲▼	Function	Synchronous Rectifier▲▼	Voltage - Input (Max)▲▼	Voltage - Input (Min)▲▼	Voltage - Output (Min/Fixed)▲▼	Output Configuration	Package / Case	Current - Output▲▼	Operating Temperature▲▼	Operating Temperature▲▼	Topology	Output Type▲▼	Number of Outputs▲▼
Texas Instruments TPS62203DBVT Buck Switching Regulator IC Positive Fixed 3.3V 1 Output 300mA SC-74A, SOT-753	SOT-23-5	Surface Mount	1000000 Hz	Step-Down		6 V	2.5 V	3.299999952316284 V	Positive	SC-74A, SOT-753	0.30000001192092896 A	85 °C	-40 °C	Buck	27.030000686645508 °C/W	1 ul
Texas Instruments TPS62203DBVR Buck Switching Regulator IC Positive Fixed 3.3V 1 Output 300mA SC-74A, SOT-753	SOT-23-5	Surface Mount	1000000 Hz	Step-Down		6 V	2.5 V	3.299999952316284 V	Positive	SC-74A, SOT-753	0.30000001192092896 A	85 °C	-40 °C	Buck	27.030000686645508 °C/W	1 ul

Key Features

• High-Efficiency Synchronous Step-DownConverter With up to 95% Efficiency2.5-V to 6-V Input Voltage RangeAdjustable Output Voltage Range From 0.7 V to VIFixed Output Voltage Options AvailableUp to 300-mA Output Current1-MHz Fixed-Frequency PWM OperationHighest Efficiency Over Wide Load Current RangeDue to Power Save Mode15-µA Typical Quiescent CurrentSoft Start100% Duty Cycle Low-Dropout OperationDynamic Output-Voltage PositioningAvailable in a 5-Pin SOT23 PackageHigh-Efficiency Synchronous Step-DownConverter With up to 95% Efficiency2.5-V to 6-V Input Voltage RangeAdjustable Output Voltage Range From 0.7 V to VIFixed Output Voltage Options AvailableUp to 300-mA Output Current1-MHz Fixed-Frequency PWM OperationHighest Efficiency Over Wide Load Current RangeDue to Power Save Mode15-µA Typical Quiescent CurrentSoft Start100% Duty Cycle Low-Dropout OperationDynamic Output-Voltage PositioningAvailable in a 5-Pin SOT23 Package

Description

The TPS6220x devices are a family of high-efficiency synchronous step-down converters ideally suited for portable systems powered by 1-cell Li-Ion or 3-cell NiMH/NiCd batteries. The devices are also suitable to operate from a standard 3.3-V or 5-V voltage rail. With an output voltage range of 6 V down to 0.7 V and up to 300 mA output current, the devices are ideal to power low voltage DSPs and processors used in PDAs, pocket PCs, and smart phones. Under nominal load current, the devices operate with a fixed switching frequency of typically 1 MHz. At light load currents, the part enters the power save mode operation; the switching frequency is reduced and the quiescent current is typically only 15 µA; therefore, it achieves the highest efficiency over the entire load current range. The TPS6220x needs only three small external components. Together with the SOT23 package, a minimum system solution size is achieved. An advanced fast response voltage mode control scheme achieves superior line and load regulation with small ceramic input and output capacitors. The TPS6220x devices are a family of high-efficiency synchronous step-down converters ideally suited for portable systems powered by 1-cell Li-Ion or 3-cell NiMH/NiCd batteries. The devices are also suitable to operate from a standard 3.3-V or 5-V voltage rail. With an output voltage range of 6 V down to 0.7 V and up to 300 mA output current, the devices are ideal to power low voltage DSPs and processors used in PDAs, pocket PCs, and smart phones. Under nominal load current, the devices operate with a fixed switching frequency of typically 1 MHz. At light load currents, the part enters the power save mode operation; the switching frequency is reduced and the quiescent current is typically only 15 µA; therefore, it achieves the highest efficiency over the entire load current range. The TPS6220x needs only three small external components. Together with the SOT23 package, a minimum system solution size is achieved. An advanced fast response voltage mode control scheme achieves superior line and load regulation with small ceramic input and output capacitors.