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

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



Product details


Vin (Min) (V) 0.9 Vin (Max) (V) 5.5 Vout (Min) (V) 3.3 Vout (Max) (V) 3.3 Switch current limit (Typ) (A) 0.4 Regulated outputs (#) 1 Switching frequency (Min) (kHz) 200 Switching frequency (Max) (kHz) 2000 Iq (Typ) (mA) 0.007 Features Bypass Mode Pass-through Mode Duty cycle (Max) (%) 100 Operating temperature range (C) -40 to 85 Rating Catalog open-in-new Find other Boost converters (integrated switch)

Package | Pins | Size

SOT-23 (DBV) 5 5 mm² 2.9 x 1.6 open-in-new Find other Boost converters (integrated switch)


  • Up to 93% Efficiency at Typical Operating
  • 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
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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 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 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 packaged in a 5-pin SOT-23 package (DBV) measuring 2.8 mm × 2.9 mm.

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Technical documentation

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Type Title Date
* Data sheet TPS61097A-33 Low-Input Voltage Synchronous-Boost Converter With Low Quiescent Current datasheet (Rev. A) Dec. 19, 2014
User guide Using the TPS61097AEVM-073 Jan. 10, 2014

Design & development

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Hardware development

document-generic User guide

The TPS61097AEVM-073 evaluation module (EVM) demonstrates the Texas Instruments TPS61097A-33 synchronous boost converter. The input voltage range of the TPS61097A-33 is 0.9 to 5.5 V, which allows the device to operate from one-cell to three-cell battery configurations in addition to a single-cell (...)

  • EVM allows access to the Input, Output and Control pins of the TPS61097A Device
  • Components for complete operating solution, includes CIN, COUT, and Inductor
  • VIN input voltage range: 0.9V to 5.5V
  • Provides current output up to 100mA @ 3.3V
  • Optimized device layout solution

Design tools & simulation

PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
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Reference designs

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SimpleLink™ Wi-Fi® CC3200 Smart Plug
TIDC-CC3200SMARTPLUG Increasingly, applications require Wi-Fi-enabled energy measurement and control, particularly in end products such as Smart Plugs and Smart Receptacles, and in general application spaces such as home appliances, Smart Grid, and building automation.

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document-generic Schematic document-generic User guide

CAD/CAE symbols

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

Ordering & quality

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