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TPS61094

ACTIVE

60-nA quiescent current bi-directional buck/boost converter with bypass mode

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Data sheet

TPS61094

ACTIVE
Data sheet Order now

Product details

Vin (min) (V) 0.7 Vin (max) (V) 5.5 Topology Boost Type Converter Switching frequency (min) (kHz) 500 Switching frequency (max) (kHz) 1000 Features Adjustable current limit, Bypass Mode, Enable, Light Load Efficiency, Synchronous Rectification, UVLO Fixed Vout (min) (V) 2.7 Vout (max) (V) 5.4 Rating Catalog Operating temperature range (°C) -40 to 125
Vin (min) (V) 0.7 Vin (max) (V) 5.5 Topology Boost Type Converter Switching frequency (min) (kHz) 500 Switching frequency (max) (kHz) 1000 Features Adjustable current limit, Bypass Mode, Enable, Light Load Efficiency, Synchronous Rectification, UVLO Fixed Vout (min) (V) 2.7 Vout (max) (V) 5.4 Rating Catalog Operating temperature range (°C) -40 to 125
WSON (DSS) 12 6 mm² 3 x 2
  • Wide voltage range and current range
    • 0.7-V to 5.5-V input voltage range
    • 1.8-V minimum input voltage for start-up
    • Programmable boost output voltages, 2.7-V to 5.4-V setting range
    • Programmable buck charging termination voltages, 1.7-V to 5.4-V setting range
    • Programmable buck charging output currents, 2.5-mA to 600-mA setting range
  • Ultra-low quiescent current
    • 60 nA in boost mode or buck charging mode
    • 4 nA in forced bypass mode
  • High efficiency and power capability
    • Typical 2.0-A inductor valley current limit
    • Two 60-mΩ (LS) / 140-mΩ (HS) MOSFETs
    • 100-mΩ bypass switch resistance
    • 1-MHz switching frequency
    • Auto snooze mode operation at light load
    • Up to 92.3% efficiency at VIN = 3 V, VOUT = 3.6 V, and IOUT = 10 µA
    • Up to 96.3% efficiency at VIN = 3 V, VOUT = 3.6 V, and IOUT = 100 mA
  • Four operation modes controlled by the MODE and EN pins
  • Rich protection
    • Output short-circuit protection
    • Thermal shutdown protection
  • 2-mm × 3-mm 12-pin WSON package
  • Wide voltage range and current range
    • 0.7-V to 5.5-V input voltage range
    • 1.8-V minimum input voltage for start-up
    • Programmable boost output voltages, 2.7-V to 5.4-V setting range
    • Programmable buck charging termination voltages, 1.7-V to 5.4-V setting range
    • Programmable buck charging output currents, 2.5-mA to 600-mA setting range
  • Ultra-low quiescent current
    • 60 nA in boost mode or buck charging mode
    • 4 nA in forced bypass mode
  • High efficiency and power capability
    • Typical 2.0-A inductor valley current limit
    • Two 60-mΩ (LS) / 140-mΩ (HS) MOSFETs
    • 100-mΩ bypass switch resistance
    • 1-MHz switching frequency
    • Auto snooze mode operation at light load
    • Up to 92.3% efficiency at VIN = 3 V, VOUT = 3.6 V, and IOUT = 10 µA
    • Up to 96.3% efficiency at VIN = 3 V, VOUT = 3.6 V, and IOUT = 100 mA
  • Four operation modes controlled by the MODE and EN pins
  • Rich protection
    • Output short-circuit protection
    • Thermal shutdown protection
  • 2-mm × 3-mm 12-pin WSON package

The TPS61094 is a 60-nA IQ boost converter with supercap management. The device provides a power supply solution for smart meter and super capacitor backup power applications.

The TPS61094 has a wide input voltage range and output voltage up to 5.5 V. When the TPS61094 works in buck mode and charges the supercap, the charging current and the termination voltage are programmable with two external resistors. When the TPS61094 works in boost mode, the output voltage is programmable with an external resistor.

During automatic buck or boost mode (EN = 1, MODE = 1), when the input power supply is applied, the device bypasses the input voltage to the output while it is capable of charging a backup supercap. When the input power supply is disconnected or lower than the output target voltage, the TPS61094 enters boost mode and regulates output voltage from a backup supercap. The TPS61094 consumes 60-nA quiescent current in this mode.

The TPS61094 supports true shutdown mode (EN = 0, MODE = 1) and the forced bypass mode (EN = 0, MODE = 0). In true shutdown mode, the TPS61094 completely disconnects the load from the input supply. When supporting forced bypass mode, the TPS61094 connects the load to the input voltage directly through a bypass switch and only consumes 4-nA current to achieve long battery life.

The TPS61094 is a 60-nA IQ boost converter with supercap management. The device provides a power supply solution for smart meter and super capacitor backup power applications.

The TPS61094 has a wide input voltage range and output voltage up to 5.5 V. When the TPS61094 works in buck mode and charges the supercap, the charging current and the termination voltage are programmable with two external resistors. When the TPS61094 works in boost mode, the output voltage is programmable with an external resistor.

During automatic buck or boost mode (EN = 1, MODE = 1), when the input power supply is applied, the device bypasses the input voltage to the output while it is capable of charging a backup supercap. When the input power supply is disconnected or lower than the output target voltage, the TPS61094 enters boost mode and regulates output voltage from a backup supercap. The TPS61094 consumes 60-nA quiescent current in this mode.

The TPS61094 supports true shutdown mode (EN = 0, MODE = 1) and the forced bypass mode (EN = 0, MODE = 0). In true shutdown mode, the TPS61094 completely disconnects the load from the input supply. When supporting forced bypass mode, the TPS61094 connects the load to the input voltage directly through a bypass switch and only consumes 4-nA current to achieve long battery life.

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Technical documentation

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Type Title Date
* Data sheet TPS61094 60-nA Quiescent Current Boost Converter with Supercap Management datasheet (Rev. C) PDF | HTML 09 Dec 2021
Application note TPS61094 기반 태양광 발전 애플리케이션용 MPPT 및 부스트 컨버터를 적용한 벅 충전기 PDF | HTML 19 Sep 2023
Application brief Hardware-Based Smart DAC Medical Alarm Design (Rev. A) PDF | HTML 04 May 2023
Application brief MSPM0-Based Medical Alarm Design PDF | HTML 26 Apr 2023
Application note Buck Charger with MPPT and Boost Converter for Solar Powered Application PDF | HTML 17 Aug 2022
Technical article 3 quiescent-current (Iq) specifications you need to understand PDF | HTML 12 Nov 2021
Application note A Long-Lifetime, Cost-Competitive Solution in Smart Meters Based on the TPS61094 (Rev. A) PDF | HTML 05 Nov 2021
Technical article 3 benefits of using a low-Iq buck/boost converter to extend battery life in flow m PDF | HTML 02 Nov 2021
Technical article Effective ways to implement backup power from supercapacitors PDF | HTML 02 Nov 2021
Certificate TPS61094EVM-066 EU RoHS Declaration of Conformity (DoC) (Rev. A) 07 Sep 2021
EVM User's guide TPS61094EVM-066 User's Guide PDF | HTML 26 Jan 2021

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

TPS61094EVM-066 — TPS61094 100-nA quiescent current bi-directional buck/boost converter evaluation module

The TPS61094 is a synchronous bi-directional buck/ boost converter with bypass switch between input and output. The device provides a power supply solution for E-meter and super capacitors backup power applications. The TPS61094 has wide input voltage range andoutput voltage up to 5.5 V. When the (...)
User guide: PDF | HTML
Not available on TI.com
Simulation model

TPS61094 PSPICE Transient Model

SLVMDO3.ZIP (222 KB) - PSpice Model
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Reference designs

TIDA-010264 — MCU based medical alarm with supercapacitor backup reference design

This reference design is an non-application specific example medical alarm utilizing the MSPM0G1507 or MSPM0G3507 microcontroller (MCU) that demonstrates primary alarm, backup alarm and visual alarm functionality to assist with development in accordance with IEC 60601-1-8.
Design guide: PDF
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