0.9Vin, 3.3Vout Boost Converter with Bypass Switch - 5nA Shutdown Current, SOT-23

TPS61097-33 is not recommended for new designs.
This product continues to be in production to support existing customers. Please consider one of these alternatives:
Exact equivalent in functionality and parametrics to the compared device:
TPS61097A-33 ACTIVE 0.9Vin, 3.3Vout Boost Converter with Bypass Switch - 5nA Shutdown Current This part offers improved robustness of startup circuitry at low VIN voltages and reduced input current variance during shutdown.
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Product details

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Features

  • Up to 95% Efficiency at Typical Operating Conditions
  • Connection from Battery to Load via Bypass Switch in Shutdown Mode
  • Typical Shutdown Current Less Than 5 nA
  • Typical Quiescent Current Less Than 5 µA
  • Operating Input Voltage Range
    From 0.9 V to 5.5 V
  • Power-Save Mode for Improved Efficiency at Low Output Power
  • Overtemperature Protection
  • Small 2.8-mm × 2.9-mm 5-Pin SOT-23 Package (6-Pin for Adjustable)
  • APPLICATIONS
    • MSP430 Applications
    • All Single-Cell, Two-Cell, and Three-Cell Alkaline, NiCd, NiMH,
      or Single-Cell Li-Battery Powered Products
    • Personal Medical Products
    • Fuel Cell and Solar Cell Powered Products
    • PDAs
    • Mobile Applications
    • White LEDs

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Description

The TPS61097 provide a power supply solution for products powered by either a single-cell, two-cell, or three-cell alkaline, NiCd, or NiMH, or one-cell Li-Ion 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-to-output voltage ratio. The devices provides 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 350 mA. The output voltage can be programmed by an external resistor divider, or it is fixed internally on the chip. 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 fixed output device is packaged in a 5-pin SOT-23 package (DBV) measuring 2.8 mm × 2.9 mm.

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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 5
Type Title Date
* Datasheet Low Input Voltage Synchronous Boost Converter With Low-Quiescent Current datasheet (Rev. C) Jan. 06, 2012
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) Dec. 11, 2018
Selection guide Power Management Guide 2018 (Rev. R) Jun. 25, 2018
Application note Basic Calculation of a Boost Converter's Power Stage (Rev. C) Jan. 08, 2014
Application note IQ: What it is, what it isn’t, and how to use it Jun. 17, 2011

Design & development

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Package Pins Download
SOT-23 (DBV) 5 View options

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