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TPS61322 Datasheet(PDF) 1 Page - Texas Instruments

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Part No. TPS61322
Description  6.5-uA Quiescent Current, 1.8-A Switch Current Boost Converter
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Maker  TI1 [Texas Instruments]
Homepage  http://www.ti.com
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TPS61322 Datasheet(HTML) 1 Page - Texas Instruments

   
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TPS61322x
Battery
SW
VOUT
22uF
2.2uH
VOUT
(optional)
Product
Folder
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Now
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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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