Product details

Vin (Min) (V) 1.8 Vin (Max) (V) 5.5 Vout (Min) (V) 3.3 Vout (Max) (V) 3.3 Switch current limit (Typ) (A) 2 Regulated outputs (#) 1 Switching frequency (Min) (kHz) 500 Switching frequency (Max) (kHz) 700 Iq (Typ) (mA) 0.02 Features Synchronous Rectification Duty cycle (Max) (%) 100 Rating Catalog
Vin (Min) (V) 1.8 Vin (Max) (V) 5.5 Vout (Min) (V) 3.3 Vout (Max) (V) 3.3 Switch current limit (Typ) (A) 2 Regulated outputs (#) 1 Switching frequency (Min) (kHz) 500 Switching frequency (Max) (kHz) 700 Iq (Typ) (mA) 0.02 Features Synchronous Rectification Duty cycle (Max) (%) 100 Rating Catalog
VQFN (RSA) 16 16 mm² 4 x 4
  • Synchronous (96% Efficient) Boost Converter
    With 500-mA Output Current From 1.8-V Input
  • Available in a 16-Pin VQFN 4 × 4 Package
  • Device Quiescent Current: 20 µA (Typ)
  • Input Voltage Range: 1.8 V to 5.5 V
  • Adjustable Output Voltage Up to 5.5 V Fixed Output
    Voltage Options
  • Power Save Mode for Improved Efficiency at Low
    Output Power
  • Low Battery Comparator
  • Low EMI-Converter (Integrated Antiringing Switch)
  • Load Disconnect During Shutdown
  • Over-Temperature Protection
  • Synchronous (96% Efficient) Boost Converter
    With 500-mA Output Current From 1.8-V Input
  • Available in a 16-Pin VQFN 4 × 4 Package
  • Device Quiescent Current: 20 µA (Typ)
  • Input Voltage Range: 1.8 V to 5.5 V
  • Adjustable Output Voltage Up to 5.5 V Fixed Output
    Voltage Options
  • Power Save Mode for Improved Efficiency at Low
    Output Power
  • Low Battery Comparator
  • Low EMI-Converter (Integrated Antiringing Switch)
  • Load Disconnect During Shutdown
  • Over-Temperature Protection

The TPS6109x devices provide a power supply solution for products powered by either a one-cell Li-Ion or Li-Polymer, or a two-cell alkaline, NiCd or NiMH battery and required supply currents up to or higher than 1 A. The converter generates a stable output voltage that is either adjusted by an external resistor divider or fixed internally on the chip. It provides high efficient power conversion and is capable of delivering output currents up to 0.5 A at 5 V at a supply voltage down to 1.8 V. The implemented boost converter is based on a fixed frequency, pulse-width- modulation (PWM) controller using a synchronous rectifier to obtain maximum efficiency. Boost switch and rectifier switch are connected internally to provide the lowest leakage inductance and best EMI behavior possible. The maximum peak current in the boost switch is limited to a value of 2500 mA.

The converter can be disabled to minimize battery drain. During shutdown, the load is completely disconnected from the battery. A low-EMI mode is implemented to reduce ringing and, in effect, lower radiated electromagnetic energy when the converter enters the discontinuous conduction mode.

The output voltage can be programmed by an external resistor divider or is fixed internally on the chip.

The device is packaged in a 16-pin VQFN 4-mm × 4-mm (16 RSA) package.

The TPS6109x devices provide a power supply solution for products powered by either a one-cell Li-Ion or Li-Polymer, or a two-cell alkaline, NiCd or NiMH battery and required supply currents up to or higher than 1 A. The converter generates a stable output voltage that is either adjusted by an external resistor divider or fixed internally on the chip. It provides high efficient power conversion and is capable of delivering output currents up to 0.5 A at 5 V at a supply voltage down to 1.8 V. The implemented boost converter is based on a fixed frequency, pulse-width- modulation (PWM) controller using a synchronous rectifier to obtain maximum efficiency. Boost switch and rectifier switch are connected internally to provide the lowest leakage inductance and best EMI behavior possible. The maximum peak current in the boost switch is limited to a value of 2500 mA.

The converter can be disabled to minimize battery drain. During shutdown, the load is completely disconnected from the battery. A low-EMI mode is implemented to reduce ringing and, in effect, lower radiated electromagnetic energy when the converter enters the discontinuous conduction mode.

The output voltage can be programmed by an external resistor divider or is fixed internally on the chip.

The device is packaged in a 16-pin VQFN 4-mm × 4-mm (16 RSA) package.

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Technical documentation

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Type Title Date
* Data sheet TPS6109x Synchronous Boost Converter With 2-A Switch datasheet (Rev. C) PDF | HTML 24 Dec 2014
Application note 벅 컨버터의 전력계 기본 계산 (Rev. D) PDF | HTML 21 Nov 2022
Application note Basic Calculation of a Boost Converter's Power Stage (Rev. D) PDF | HTML 28 Oct 2022
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 11 Dec 2018
Application note QFN and SON PCB Attachment (Rev. B) PDF | HTML 24 Aug 2018
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
Application note Optimizing Transient Response of Internally Compensated DC-DC Converters (Rev. B) 29 Nov 2017
Application note Extending the Soft Start Time Without a Soft Start Pin (Rev. B) 15 Jun 2017
Application note Five Steps to a Good PCB Layout of the Boost Converter PDF | HTML 03 May 2016
Application note Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs 19 Sep 2011
Analog Design Journal IQ: What it is, what it isn’t, and how to use it 17 Jun 2011
Application note Minimizing Ringing at the Switch Node of a Boost Converter 15 Sep 2006

Design & development

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

Evaluation board

TPS61090EVM-029 — TPS61090 Evaluation Module

The TPS61090EVM-029 is an evaluation tool for the TPS61090 inductive step-up converter in QFN-16 package which can supply voltages up to 5.5V from a 1.8-V to 5.5-V input. The TPS61090EVM-029 uses a TPS61090 adjustable output step-up converter and the appropriate external components to provide a 5-V (...)

User guide: PDF
Not available on TI.com
Gerber file

TPS6109xVM Gerber Files

SLVC141.ZIP (92 KB)
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

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 (...)
Package Pins Download
QFN (RSA) 16 View options

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