Product details

Vin (Min) (V) 2.7 Vin (Max) (V) 12 Vout (Min) (V) 4.5 Vout (Max) (V) 12.6 Switch current limit (Typ) (A) 11.4 Regulated outputs (#) 1 Switching frequency (Min) (kHz) 200 Switching frequency (Max) (kHz) 2200 Iq (Typ) (mA) 0.01 Features Adjustable Current Limit, Enable, Light Load Efficiency, Synchronous Rectification Duty cycle (Max) (%) 90 Operating temperature range (C) -40 to 85 Rating Catalog
Vin (Min) (V) 2.7 Vin (Max) (V) 12 Vout (Min) (V) 4.5 Vout (Max) (V) 12.6 Switch current limit (Typ) (A) 11.4 Regulated outputs (#) 1 Switching frequency (Min) (kHz) 200 Switching frequency (Max) (kHz) 2200 Iq (Typ) (mA) 0.01 Features Adjustable Current Limit, Enable, Light Load Efficiency, Synchronous Rectification Duty cycle (Max) (%) 90 Operating temperature range (C) -40 to 85 Rating Catalog
VQFN-HR (RNR) 11 5 mm² 2.5 x 2
  • Input voltage range: 2.7 V to 12 V
  • Output voltage range: 4.5 V to 12.6 V
  • Up to 90% efficiency at VIN = 3.3 V, VOUT = 9 V, and IOUT = 2 A
  • Resistor-programmable peak current limit up to 10 A for high pulse current
  • Adjustable switching frequency: 200 kHz to 2.2 MHz
  • 4-ms built-in soft start time
  • PFM operation mode at light load (TPS61089)
  • Forced PWM operation mode at light load (TPS610891)
  • Internal output overvoltage protection at 13.2 V
  • Cycle-by-cycle overcurrent protection
  • Thermal shutdown
  • 2.00-mm × 2.50-mm VQFN HotRod™ package
  • Create a custom design using the TPS61089x with the WEBENCH Power Designer
  • Input voltage range: 2.7 V to 12 V
  • Output voltage range: 4.5 V to 12.6 V
  • Up to 90% efficiency at VIN = 3.3 V, VOUT = 9 V, and IOUT = 2 A
  • Resistor-programmable peak current limit up to 10 A for high pulse current
  • Adjustable switching frequency: 200 kHz to 2.2 MHz
  • 4-ms built-in soft start time
  • PFM operation mode at light load (TPS61089)
  • Forced PWM operation mode at light load (TPS610891)
  • Internal output overvoltage protection at 13.2 V
  • Cycle-by-cycle overcurrent protection
  • Thermal shutdown
  • 2.00-mm × 2.50-mm VQFN HotRod™ package
  • Create a custom design using the TPS61089x with the WEBENCH Power Designer

The TPS61089x represents the TPS61089 and the TPS610891. The TPS61089x is a fully-integrated synchronous boost converter with a 19-mΩ main power switch and a 27-mΩ rectifier switch. The device provides a high-efficiency and small-size power solution for portable equipment. The TPS61089x features a wide input voltage range from 2.7 V to 12 V to support applications powered with single-cell or two-cell Lithium ion/polymer batteries. The TPS61089x has 7-A continuous switch current capability and provides output voltage up to 12.6 V.

The TPS61089x uses adaptive constant off-time peak current control topology to regulate the output voltage. In moderate to heavy load condition, the TPS61089x works in the pulse width modulation (PWM) mode. In light load condition, the TPS61089 works in the pulse frequency modulation (PFM) mode to improve the efficiency, while the TPS610891 still works in the PWM mode to avoid application problems caused by low switching frequency. The switching frequency in PWM mode is adjustable from 200 kHz to 2.2 MHz. The TPS61089x also implements a built-in 4-ms soft start function and an adjustable peak switch current limit function. In addition, the device provides 13.2-V output overvoltage protection, cycle-by-cycle overcurrent protection, and thermal shutdown protection.

The TPS61089x is available in an extremely compact size of a 2.0-mm × 2.5-mm 11-pin VQFN package.

The TPS61089x represents the TPS61089 and the TPS610891. The TPS61089x is a fully-integrated synchronous boost converter with a 19-mΩ main power switch and a 27-mΩ rectifier switch. The device provides a high-efficiency and small-size power solution for portable equipment. The TPS61089x features a wide input voltage range from 2.7 V to 12 V to support applications powered with single-cell or two-cell Lithium ion/polymer batteries. The TPS61089x has 7-A continuous switch current capability and provides output voltage up to 12.6 V.

The TPS61089x uses adaptive constant off-time peak current control topology to regulate the output voltage. In moderate to heavy load condition, the TPS61089x works in the pulse width modulation (PWM) mode. In light load condition, the TPS61089 works in the pulse frequency modulation (PFM) mode to improve the efficiency, while the TPS610891 still works in the PWM mode to avoid application problems caused by low switching frequency. The switching frequency in PWM mode is adjustable from 200 kHz to 2.2 MHz. The TPS61089x also implements a built-in 4-ms soft start function and an adjustable peak switch current limit function. In addition, the device provides 13.2-V output overvoltage protection, cycle-by-cycle overcurrent protection, and thermal shutdown protection.

The TPS61089x is available in an extremely compact size of a 2.0-mm × 2.5-mm 11-pin VQFN package.

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Technical documentation

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Type Title Date
* Data sheet TPS61089x 12.6-V, 7-A Fully-Integrated Synchronous Boost Converters in 2.0-mm x 2.5-mm VQFN Package datasheet (Rev. C) PDF | HTML 10 Aug 2021
Application note Using External Bias to Broaden Input Voltage Range of Boost Converters PDF | HTML 08 Nov 2021
Application note Measuring and Understanding the Output Voltage Ripple of a Boost Converter PDF | HTML 22 Feb 2021
Application note Reducing Radiated EMI in TPS61088 Boost Converter (Rev. A) 04 Nov 2019
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 11 Dec 2018
Application note Negative to Positive Conversion Made Simple with TPS61089 Boost Converter 11 Oct 2018
Application note QFN and SON PCB Attachment (Rev. B) PDF | HTML 24 Aug 2018
Application note Charging Supercapacitor Banks from USB Type C Port With Boost Converter 17 Jul 2018
Application note Output Short-Circuit Protection Solution for the TPS61088 22 Sep 2016
Technical article A much smaller boost converter for slightly smaller power banks 23 May 2016
Application note Five Steps to a Good PCB Layout of the Boost Converter PDF | HTML 03 May 2016
EVM User's guide TPS61089EVM-742 User's Guide 07 Apr 2016
Application note Basic Calculation of a Boost Converter's Power Stage (Rev. C) 08 Jan 2014
Application note AN-2020 Thermal Design By Insight, Not Hindsight (Rev. C) 23 Apr 2013
Analog Design Journal Design considerations for a resistive feedback divider in a DC/DC converter 26 Apr 2012
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

TPS61089EVM-742 — Boost Converter Evaluation Module for TPS61089

The TPS61089 is a fully-integrated synchronous boost converter with a 19-mΩ main power switch and a 27-mΩ rectifier switch. The device provides a high efficiency and small size power solution for portable equipment. The TPS61089 features wide input voltage range from 2.7 V to 12 V to support (...)

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Simulation model

TPS61089 PSpice Transient Model TPS61089 PSpice Transient Model

Simulation model

Unencrypted TPS61089 PSpice Transient Model Package (Rev. C) Unencrypted TPS61089 PSpice Transient Model Package (Rev. C)

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 (...)
Reference designs

TIDA-050039 — Energy harvesting from single cell solar panel for li-ion battery reference design

The TIDA-050039 reference design demonstrates how to use a fully-integrated synchronous boost converter TPS61089 in combination with a single-cell solar panel to charge a li-ion battery. An additional maximum power-point (MPP) sampling network is implemented to dynamically control the input (...)
Reference designs

TIDA-01635 — Backlight and LCD Bias Reference Design for 90-Hz Refresh-Rate Virtual/Augmented Reality Displays

This reference design describes the power solution for LCD displays in wearable devices, especially in augmented-reality (AR) and virtual reality (VR) headsets. The high current accuracy backlight driver is achieved by LP8556, which provides high current during small duty cycle synchronized with (...)
Reference designs

PMP9802 — Backup Power Reference Design for Smart Meters and Data Concentrators with GPRS

The reference design describes a power management solution for data concentrators and smart meters that require both super capacitor and battery as backup power. The designed circuit implements uninterrupted power supply to drive GPRS module and other system loads by switching among the power (...)
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