Specification	TPS62221DDCT

Current - Output	400 mA
Frequency - Switching	1.25 MHz
Function	Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Type	1.81 mOhm
Package / Case	SOT-23-5 Thin, TSOT-23-5
Supplier Device Package	SOT-23-THIN
Synchronous Rectifier	True
Topology	Buck
Voltage - Input (Max) [Max]	6 V
Voltage - Input (Min) [Min]	2.5 V
Voltage - Output (Min/Fixed)	1.5 V

TPS62221 Series

1.5-V Output, 400-mA, 95% Efficient Step-Down Converter, 15uA, ThinSOT-23

Part	Operating Temperature [Max]	Operating Temperature [Min]	Output Type	Output Configuration	Voltage - Output (Min/Fixed)	Supplier Device Package	Number of Outputs	Package / Case	Voltage - Input (Min) [Min]	Frequency - Switching	Topology	Mounting Type	Voltage - Input (Max) [Max]	Current - Output	Function	Regulator Topology	Utilized IC / Part	Voltage - Output	Main Purpose	Board Type	Voltage - Input [Max]	Voltage - Input [Min]	Supplied Contents	Outputs and Type	Outputs and Type
Texas Instruments TPS62221DDCT	85 °C	-40 °C	1.81 mOhm	Positive	1.5 V	SOT-23-THIN	1	SOT-23-5 Thin TSOT-23-5	2.5 V	1.25 MHz	Buck	Surface Mount	6 V	400 mA	Step-Down
Texas Instruments TPS62221EVM-014										1.25 MHz				400 mA		Buck	TPS62221	1.5 V	DC/DC Step Down	Fully Populated	6 V	2.5 V	Board(s)	Non-Isolated	1
Texas Instruments TPS62221DDCR	85 °C	-40 °C	1.81 mOhm	Positive	1.5 V	SOT-23-THIN	1	SOT-23-5 Thin TSOT-23-5	2.5 V	1.25 MHz	Buck	Surface Mount	6 V	400 mA	Step-Down

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 1.56
		10	$ 1.40
		25	$ 1.32
		100	$ 1.13
	Digi-Reel®	1	$ 1.56
		10	$ 1.40
		25	$ 1.32
		100	$ 1.13
	Tape & Reel (TR)	250	$ 1.06
		500	$ 0.92
		1250	$ 0.77
		2500	$ 0.71
		6250	$ 0.69
		12500	$ 0.66
Texas Instruments	SMALL T&R	1	$ 1.29
		100	$ 0.99
		250	$ 0.73
		1000	$ 0.52

Description

General part information

TPS62221 Series

The TPS6222x 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 400-mA output current, the devices are ideal for powering the low voltage TMS320 DSP family and processors used in PDAs, pocket PCs, and smart phones. Under nominal load current, the devices operate with a fixed switching frequency of typically 1.25 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, the device achieves the highest efficiency over the entire load current range. The TPS6222x needs only three small external components. Together with the tiny TSOT23 package, a minimum system solution size can be achieved. An advanced fast response voltage mode control scheme achieves superior line and load regulation with small ceramic input and output capacitors.