TPS61089RNRR

• Synchronous Boost Topology with Integrated rectification, No External Schottky Needed
• Input Range of 2.7 V to 12 V, Adjustable Positive Output from 4.5 V to 12.6 V
• 7 A Output Current Rating with Up to 90 Percent Maximum Duty Cycle
• 2.2 MHz Switching Frequency for Small External Inductor and Capacitor Sizing
• Low 10 uA Nominal Supply Current
• 11-Pin VQFN-HR package, 2.5 Mm X 2 Mm X 1 mm, MSL 1, Lead-Free and RoHS Compliant

The TPS61089RNRR is a Texas Instruments synchronous step-up (boost) DC-DC converter that accepts an input from 2.7 V to 12 V and produces an adjustable output from 4.5 V to 12.6 V. The TPS61089RNRR is rated at 7 A and switches at 2.2 MHz with synchronous rectification, which removes the external Schottky Diode a non-synchronous boost would require. It is supplied in an 11-pin VQFN-HR package measuring 2.5 mm x 2 mm x 1 mm.

Boost converters are needed whenever a load requires more voltage than the source provides, most commonly generating 5 V, 9 V or 12 V from a single-cell or two-cell lithium battery whose voltage falls as it discharges. The 2.7 V input floor of the TPS61089RNRR lets a design keep running to the end of battery discharge, and the 7 A rating supports demanding loads such as USB Power Delivery output, audio amplifiers, LED backlights and motor supplies. Portable device, power bank, e-mobility and industrial handheld designers use parts in this class. The 2.2 MHz switching frequency keeps the inductor and output capacitors physically small.