TPS62202DBVR

Product Summary

The TPS62202DBVR device is a high-efficiency synchronous step-down converter 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 TPS62202DBVR is 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 TPS62202DBVR 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.

Parametrics

TPS62202DBVR absolute maximum ratings: (1)Supply voltages, VI: -0.3 V to 7.0 V; (2)Voltages on pins SW, EN, FB: -0.3 V to VCC +0.3 V; (3)Continuous power dissipation, PD: See Dissipation Rating Table; (4)Operating junction temperature range, TJ: -40℃ to 150℃; (5)Storage temperature, Tstg: -65℃ to 150℃; (6)Lead temperature (soldering, 10 sec): 260℃.

Features

TPS62202DBVR features: (1)High Efficiency Synchronous Step-Down Converter With up to 95% Efficiency; (2)2.5-V to 6-V Input Voltage Range; (3)Adjustable Output Voltage Range From 0.7 V to VI; (4)Fixed Output Voltage Options Available; (5)Up to 300 mA Output Current; (6)1-MHz Fixed Frequency PWM Operation; (7)Highest Efficiency Over Wide Load Current Range Due to Power Save Mode; (8)15-μA Typical Quiescent Current; (9)Soft Start; (10)100% Duty Cycle Low-Dropout Operation; (11)Dynamic Output-Voltage Positioning; (12)Available in a 5-Pin SOT23 Package.

Diagrams