0.7Vin Synchronous Boost Converter with 800 nA Ultra-Low Quiescent Current


Product details


Vin (Min) (V) 0.7 Vin (Max) (V) 5.5 Vout (Min) (V) 1.8 Vout (Max) (V) 5.5 Switch current limit (Typ) (A) 1 Regulated outputs (#) 1 Switching frequency (Min) (kHz) 1000 Switching frequency (Max) (kHz) 3000 Iq (Typ) (mA) 0.001, 0.0008 Features Bypass Mode Pass-through Mode, Synchronous Rectification Duty cycle (Max) (%) 90 Operating temperature range (C) -40 to 125, -40 to 150, -40 to 85 Rating Catalog open-in-new Find other Boost converters (integrated switch)

Package | Pins | Size

DSBGA (YFF) 6 0 mm² .924 x 1.266 WSON (DRV) 6 4 mm² 2 x 2 open-in-new Find other Boost converters (integrated switch)


  • 600-nA ultra-low IQ into VOUT pin
  • 400-nA ultra-low IQ into VIN pin
  • Operating input voltage from 0.7 V to 5.5 V
  • Adjustable output voltage from 1.8 V to 5.5 V
  • Fixed output voltage versions available
  • Minimum 0.8-A switch peak current limit
  • Regulated output voltage in down mode
  • True disconnection during shutdown
  • Up to 75% efficiency at 10-µA load with fixed output voltage versions
  • Up to 93% efficiency from 10-mA to 300-mA load
  • 6-ball 1.23-mm × 0.88-mm WCSP package and 2-mm × 2-mm WSON package
  • Create a custom design using the TPS61099x with the WEBENCH Power Designer
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The TPS61099x device is a synchronous boost converter with 1-µA ultra-low quiescent current. The device is designed for products powered by an alkaline battery, NiMH rechargeable battery, Li-Mn battery, or rechargeable Li-Ion battery where high efficiency under light-load condition is critical to achieve long battery life operation.

The TPS61099x boost converter uses a hysteretic control topology to obtain maximal efficiency at minimal quiescent current. It only consumes 1-µA quiescent current under light-load condition and can achieve up to 75% efficiency at 10-µA load with fixed output voltage version. It can also support up to 300-mA output current from 3.3-V to 5-V conversion, and achieve up to 93% at 200-mA load.

The TPS61099x also offers both Down mode and Pass-Through operations for different applications. In Down mode, the output voltage can still be regulated at target value even when input voltage is higher than the output voltage. In Pass-Through mode, the output voltage follows input voltage. The TPS61099x exits Down mode and enters into Pass-Through mode when VIN > VOUT + 0.5 V.

The TPS61099x supports true shutdown function when it is disabled, which disconnects the load from the input supply to reduce the current consumption.

The TPS61099x offers both adjustable output voltage version and fixed output voltage versions. It is available in a 6-ball 1.23-mm × 0.88-mm WCSP Package and a 6-pin 2-mm × 2-mm WSON package.

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Technical documentation

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Type Title Date
* Data sheet TPS61099x Synchronous Boost Converter with Ultra-Low Quiescent Current datasheet (Rev. L) Aug. 10, 2021
Technical article How to design an infrared thermometer quickly Apr. 07, 2020
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) Dec. 11, 2018
Technical article No strings attached: Creating next-generation wireless patient monitors Jun. 29, 2018
User guide TPS61099 Evaluation Module User's Guide (Rev. A) Jun. 23, 2017
Application note Calculating and Measuring the No Load Input Current of the Boost Converter Sep. 23, 2016
Application note Accurately measuring efficiency of ultralow-IQ devices Jan. 22, 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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Hardware development

document-generic User guide
TPS61099x device is a synchronous boost converter with 1-µA ultra-low quiescent current. Its input voltage ranges from 0.7V to 5.5V. The device support fixed and adjustable ouput voltage from 1.8V to 5.5V. The inductor peak current limit is typical 1A which is capable to output 5V, 300mA from (...)
  • Input Voltage Range: 0.7V to 5.5V
  • Output Voltage Range: 1.8V to 5.5V
  • 1-µA Quiescent Current
  • Typical 1 A Switch Peak Current Limit
  • True Disconnection During Shutdown
document-generic User guide
TPS61099 provides an ultra-low quiescent power supply solution for products powered by either a single-cell or two-cell alkaline, or a one-cell coin battery. It only consumes 800nA quiescent current under light load condition, and can achieve up to 70% efficiency at 10uA load. It also supports the (...)
  • 800nA ultra-low IQ at light load
  • Minimum 0.8A switch peak current limit
  • Fixed output voltage versions available
  • True disconnection during shutdown
  • > 70% efficiency at 10μA load

Design tools & simulation

SLVMBL7B.ZIP (99 KB) - PSpice Model
SLVMBW2B.ZIP (115 KB) - PSpice Model
SLVMBX3A.ZIP (117 KB) - PSpice Model
SLVMCO7A.ZIP (116 KB) - PSpice Model
SLVMDB0.ZIP (5 KB) - PSpice Model
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 (...)
  • Leverages Cadence PSpice Technology
  • 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
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Reference designs

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TIDA-01580 — This reference design is a simple, wearable, multi-parameter, patient monitor that uses a single-chip, biosensing front end, AFE4900, for synchronized electrocardiography (ECG) and photoplethysmography (PPG) measurements. The measured data is transferred to a remote location using CC2640R2F (...)
document-generic Schematic
Low-power option for smart meter wireless module using primary cells reference design
TIDA-010053 — This reference design showcases three different power architectures for smart flow meters with lithium manganese dioxide (LiMnO2) primary batteries and commercial off-the-shelf narrowband modules for Internet of Things (IoT)-related applications. The three power solutions are combined with the (...)
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Wearable, 16-phase multi-sensor SpO2 and heart rate monitor (HRM) reference design with Bluetooth® 5
TIDA-010029 This reference design enables a wearable, optimized saturation of peripheral capillary oxygen (SpO2) and multi-sensor, multi-wavelength optical heart rate monitor (HRM). It uses AFE4420 device, which is a single-chip, bio-sensing front end for photoplethysmography (PPG) measurements. It supports up (...)
document-generic Schematic
Power Supply for NB-IoT Modems in Smart Meters with LiSOCl2 Batteries Reference Design
TIDA-050010 — This reference design provides a power supply solution for NB-IoT (Narrow Band -Internet of Things ) in smart meter with LiSOCl2 Batteries applications. The design is a low standby current, high efficiency solution that will extend battery use time more than 50%.
document-generic Schematic
Ultra-low Standby Power Reference Design for Wireless Earbud Battery
TIDA-050007 New, completely wireless earbuds are charged by the battery inside their carrying case—a unique design that requires small solution sizes and efficient power components. Additionally, the large demands in this market are increasing the need to deliver equivalent functionality more (...)
document-generic Schematic

CAD/CAE symbols

Package Pins Download
DSBGA (YFF) 6 View options
WSON (DRV) 6 View options

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