Datasheet Texas Instruments TPS61097A-33DBVT — Ficha de datos

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SLVSCF2A – JANUARY 2014 – REVISED DECEMBER 2014 TPS61097A-33 Low-Input Voltage Synchronous-Boost Converter With Low Quiescent
Current
1 Features 3 Description The TPS61097A-33 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 LiIon or Li-polymer battery. They can also be used in
fuel cell or solar cell powered devices where the
capability of handling low input voltages is essential.
Possible output currents depend on the input-tooutput voltage ratio. The devices provide output
currents up to 100 mA at a 3.3-V output while using a
single-cell Li-Ion or Li-Polymer battery. The boost
converter is based on a current-mode controller using
synchronous rectification to obtain maximum
efficiency. The maximum average input current is
limited to a value of 400 mA. The converter can be
disabled to minimize battery drain. During shutdown,
the battery is connected to the load to enable battery
backup of critical functions on the load. The device is …