TPS61222-EP Series

0.7-VIN, 5-V fixed output voltage boost converter with 5.5-μA quiescent current

Catalog

0.7-VIN, 5-V fixed output voltage boost converter with 5.5-μA quiescent current

Part	Synchronous Rectifier	Topology	Output Type	Operating Temperature [Max]	Operating Temperature [Min]	Function	Number of Outputs	Mounting Type	Supplier Device Package	Voltage - Input (Max) [Max]	Voltage - Output (Min/Fixed)	Output Configuration	Package / Case	Current - Output	Frequency - Switching [Max]	Voltage - Input (Min) [Min]
Texas Instruments TPS61222MDCKTEP		Boost	1.81 mOhm	125 ¯C	-55 °C	Step-Up	1	Surface Mount	SC-70-6	5.5 V	5 V	Positive	6-TSSOP SC-88 SOT-363	200 mA	2 MHz	0.7 V
Texas Instruments TPS61222DCKT		Boost	1.81 mOhm	125 ¯C	-40 °C	Step-Up	1	Surface Mount	SC-70-6	5.5 V	5 V	Positive	6-TSSOP SC-88 SOT-363	200 mA	2 MHz	0.7 V

Catalog

0.7-VIN, 5-V fixed output voltage boost converter with 5.5-μA quiescent current

Key Features

• Up to 95% Efficiency at Typical Operating Conditions5.5 µA Quiescent CurrentStartup Into Load at 0.7 V Input VoltageOperating Input Voltage from 0.7 V to 5.5 VPass-Through Function During ShutdownMinimum Switching Current 200 mAProtections:Output OvervoltageOvertemperatureInput Undervoltage LockoutFixed Output Voltage VersionsSmall 6-Pin SC-70 PackageUp to 95% Efficiency at Typical Operating Conditions5.5 µA Quiescent CurrentStartup Into Load at 0.7 V Input VoltageOperating Input Voltage from 0.7 V to 5.5 VPass-Through Function During ShutdownMinimum Switching Current 200 mAProtections:Output OvervoltageOvertemperatureInput Undervoltage LockoutFixed Output Voltage VersionsSmall 6-Pin SC-70 Package

Description

The TPS61222 provides a power-supply solution for products powered by either a single-cell, two-cell, or three-cell alkaline, NiCd or NiMH, or one-cell Li-Ion or Li-polymer battery. Possible output currents depend on the input-to-output voltage ratio. The boost converter is based on a hysteretic controller topology using synchronous rectification to obtain maximum efficiency at minimal quiescent currents. The output voltage of the adjustable version can be programmed by an external resistor divider, or is set internally to a fixed output voltage. The converter can be switched off by a featured enable pin. While being switched off, battery drain is minimized. The device is offered in a 6-pin SC-70 package (DCK) measuring 2 mm × 2 mm to enable small circuit layout size. The TPS61222 provides a power-supply solution for products powered by either a single-cell, two-cell, or three-cell alkaline, NiCd or NiMH, or one-cell Li-Ion or Li-polymer battery. Possible output currents depend on the input-to-output voltage ratio. The boost converter is based on a hysteretic controller topology using synchronous rectification to obtain maximum efficiency at minimal quiescent currents. The output voltage of the adjustable version can be programmed by an external resistor divider, or is set internally to a fixed output voltage. The converter can be switched off by a featured enable pin. While being switched off, battery drain is minimized. The device is offered in a 6-pin SC-70 package (DCK) measuring 2 mm × 2 mm to enable small circuit layout size.