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TPS61322 Datasheet(PDF) 1 Page - Texas Instruments |
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TPS61322 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 9 page TPS61322x Battery SW VOUT 22uF 2.2uH VOUT (optional) Product Folder Order Now Technical Documents Tools & Software Support & Community An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. ADVANCE INFORMATION for pre-production products; subject to change without notice. TPS61322 SLVSEB2 – SEPTEMBER 2017 TPS61322x 6.5-µA Quiescent Current, 1.8-A Switch Current Boost Converter 1 1 Features 1 • Operating Input Voltage Range: 0.9 V to 5.5 V • Output Voltage Range: 1.8 V to 5.5 V • 6.5-µA Quiescent Current into VOUT Pin • ±3% Output Voltage Accuracy Over Temperature • Minimum Switch Peak Current Limit: – 0.45 A for TPS61322 – 0.6 A for TPS613221 – 1.2 A for TPS613222 • Higher Than 85% efficiency at 10 mA Load from 1.2-V to 2.2-V Conversion • Thermal Shutdown Protection • 2.9-mm x 1.3-mm 3-pin SOT Package 2 Applications • 1-cell to 3-cell Alkaline or NiMH Battery Powered Applications • Gaming Control • Tablet • Portable Consumer • Medical Equipment 3 Description The TPS61322x is a synchronous boost converter with only 6.5-µA quiescent current. TPS61322x provides a power-supply solution for products powered by alkaline battery, NiMH rechargeable battery, or one-cell Li-Ion battery. The minimum current limit is 0.45 A for TPS61322, 0.6 A for TPS613221 and 1.2 A for TPS613222. The boost converter is based on a hysteretic control topology using synchronous rectification to obtain maximum efficiency at minimal quiescent currents. Higher than 85% efficiency can be achieved at 10mA load from 1.2-V input to 2.2-V output. TPS61322x can also support non-synchronous operation for high output load applications. The TPS613222 provides higher than 500 mA output current capability at 3.0 V input voltage to 5.0 V output voltage conversion with an external Schottky diode in parallel with the internal rectifier FET. The output voltage is set internally to a fixed output voltage from 1.8 V to 5.5 V in increments of 0.1 V. TPS61322x is packaged in a 2.9-mm × 1.3-mm 3-pin SOT package. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) TPS61322x 3 pin SOT 2.9-mm x 1.3-mm (1) For all available packages, see the orderable addendum at the end of the data sheet. Typical Application Circuit |
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