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TPS61170

ACTIVE

1.2A Switch, 38V High Voltage Boost Converter in 2x2mm QFN Package

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Data sheet

TPS61170

ACTIVE
Data sheet Order now

Product details

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Boost, Flyback, Forward, SEPIC Type Converter Vin (min) (V) 3 Vin (max) (V) 18 Switching frequency (min) (kHz) 1000 Switching frequency (max) (kHz) 1200 Features Enable, Light Load Efficiency, Nonsynchronous Vout (min) (V) 3 Vout (max) (V) 38 Iq (typ) (µA) 2300 Duty cycle (max) (%) 93 Switch current limit (typ) (A) 1.2
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Boost, Flyback, Forward, SEPIC Type Converter Vin (min) (V) 3 Vin (max) (V) 18 Switching frequency (min) (kHz) 1000 Switching frequency (max) (kHz) 1200 Features Enable, Light Load Efficiency, Nonsynchronous Vout (min) (V) 3 Vout (max) (V) 38 Iq (typ) (µA) 2300 Duty cycle (max) (%) 93 Switch current limit (typ) (A) 1.2
WSON (DRV) 6 4 mm² 2 x 2
  • 3-V to 18-V Input Voltage Range
  • High Output Voltage: Up to 38 V
  • 1.2-A Integrated Switch
  • 1.2-MHz Fixed Switching Frequency
  • 12 V at 300 mA and 24 V at 150 mA From
    5-V Input (Typical)
  • Up to 93% Efficiency
  • Output Voltage Reprogramming
  • Skip-Switching Cycle for Output
    Regulation at Light Load
  • Built-in Soft Start
  • 6-Pin, 2-mm × 2-mm QFN Package
  • 3-V to 18-V Input Voltage Range
  • High Output Voltage: Up to 38 V
  • 1.2-A Integrated Switch
  • 1.2-MHz Fixed Switching Frequency
  • 12 V at 300 mA and 24 V at 150 mA From
    5-V Input (Typical)
  • Up to 93% Efficiency
  • Output Voltage Reprogramming
  • Skip-Switching Cycle for Output
    Regulation at Light Load
  • Built-in Soft Start
  • 6-Pin, 2-mm × 2-mm QFN Package

The TPS61170 is a monolithic, high-voltage switching regulator with integrated 1.2-A, 40-V power MOSFET. The device can be configured in several standard switching-regulator topologies, including boost and SEPIC. The device has a wide input-voltage range to support applications with input voltage from multicell batteries or regulated 5-V, 12-V power rails.

The TPS61170 operates at a 1.2-MHz switching frequency, allowing the use of low-profile inductors and low-value ceramic input and output capacitors. External loop compensation components give the user flexibility to optimize loop compensation and transient response. The device has built-in protection features, such as pulse-by-pulse overcurrent limit, soft start, and thermal shutdown.

The FB pin regulates to a reference voltage of 1.229 V. The reference voltage can be lowered using a 1-wire digital interface (Easyscale™ protocol) through the CTRL pin. Alternatively, a pulse width-modulation (PWM) signal can be applied to the CTRL pin. The duty cycle of the signal reduces the feedback reference voltage proportionally.

The TPS61170 is available in a 6-pin 2-mm × 2-mm QFN package, allowing a compact power-supply solution.

The TPS61170 is a monolithic, high-voltage switching regulator with integrated 1.2-A, 40-V power MOSFET. The device can be configured in several standard switching-regulator topologies, including boost and SEPIC. The device has a wide input-voltage range to support applications with input voltage from multicell batteries or regulated 5-V, 12-V power rails.

The TPS61170 operates at a 1.2-MHz switching frequency, allowing the use of low-profile inductors and low-value ceramic input and output capacitors. External loop compensation components give the user flexibility to optimize loop compensation and transient response. The device has built-in protection features, such as pulse-by-pulse overcurrent limit, soft start, and thermal shutdown.

The FB pin regulates to a reference voltage of 1.229 V. The reference voltage can be lowered using a 1-wire digital interface (Easyscale™ protocol) through the CTRL pin. Alternatively, a pulse width-modulation (PWM) signal can be applied to the CTRL pin. The duty cycle of the signal reduces the feedback reference voltage proportionally.

The TPS61170 is available in a 6-pin 2-mm × 2-mm QFN package, allowing a compact power-supply solution.
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Technical documentation

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Type Title Date
* Data sheet TPS61170 1.2-A High-Voltage Boost Converter in 2-mm x 2-mm2 QFN Package datasheet (Rev. D) PDF | HTML 18 Dec 2014
Application note QFN and SON PCB Attachment (Rev. C) PDF | HTML 06 Dec 2023
Application note 스트컨버터의 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 Using External Bias to Broaden Input Voltage Range of Boost Converters PDF | HTML 08 Nov 2021
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 11 Dec 2018
Application note Charging Supercapacitor Banks from USB Type C Port With Boost Converter 17 Jul 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 Input Current Limit Solution for USB-Supplied Power System 03 Aug 2017
Application note Extending the Soft Start Time Without a Soft Start Pin (Rev. B) 15 Jun 2017
Application note Design of UVLO for LM27313 (Rev. B) 08 Apr 2014
Analog Design Journal 4Q 2012 Issue Analog Applications Journal 25 Sep 2012
Analog Design Journal Simple open-circuit protection for boost converters in LED driver applications 25 Sep 2012
Application note How to Design a Boost Converter With the TPS61170 (Rev. C) 06 Jun 2012
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 Load Disconnect for the TPS61170 (Rev. A) 14 Mar 2011
More literature Журнал по применению аналоговых компонентов 3кв. 2010 13 Jan 2011
Application note Description Compensating the Current Mode Boost Control Loop 09 Dec 2010
Analog Design Journal 3Q 2010 Issue Analog Applications Journal 11 Aug 2010
Analog Design Journal Coupled inductors broaden DC/DC converter usage 11 Aug 2010
EVM User's guide TPS61170EVM-280 User's Guide (Rev. C) 18 Sep 2009
Application note How to Design a SEPIC Converter With the TPS61175 12 Jun 2009
Analog Design Journal Compensating and measuring the DC/DC converter loop that powers a high-power LED 22 Oct 2008
Analog Design Journal Designing DC/DC converters based on SEPIC topology 22 Oct 2008
Analog Design Journal Q4 2008 Issue Analog Applications Journal 22 Oct 2008
EVM User's guide TPS61170EVM-316 (Rev. A) 25 Sep 2008
More literature Seminar 400 Topic 1 - Current-Mode Control of Switching Power Supplies 15 Feb 2001

Design & development

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

Evaluation board

TPS61170EVM-280 — TPS61170 12V Input, 24V Output, 0.34A Evaluation Module

The TPS61170EVM-280 facilitates evaluation of the TPS61170 High Voltage 1.2 A Boost Converter. The TPS61170 is monolithic high voltage switching regulator. It can be operated in several of the standard switching configurations, including boost and SEPIC. The 1.2 A, 40 V high (...)

User guide: PDF
Not available on TI.com
Evaluation board

TPS61170EVM-316 — TPS61170EVM-316 Evaluation Module

The TPS61170EVM-316 facilitates evaluation of the TPS61170 1.2A High Voltage Boost Converter in a SEPIC configuration.
User guide: PDF
Not available on TI.com
Support software

SLVC160 — TPS61170 Design Software

Supported products & hardware

Supported products & hardware

Products
AC/DC & DC/DC converters (integrated FET)
TPS61170 — 1.2A Switch, 38V High Voltage Boost Converter in 2x2mm QFN Package
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Support software

TPS6116XEVM-SW — Software for TPS6116x Evaluation Modules

The TPS6116xEVM-SW software provides a software interface for the TPS6116x/70 EVM boards. Use this software to change the TPS6116x IC register via the USB Interface Adapter.
Download options
Simulation model

TPS61170 TINA-TI Transient Reference Design

SLVM230.TSC (416 KB) - TINA-TI Reference Design
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Simulation model

TPS61170 TINA-TI Transient Spice Model

SLVM231.ZIP (55 KB) - TINA-TI Spice Model
Download
Simulation model

TPS61170 Unencrypted PSPICE Transient Model Package (Rev. A)

SLVM100A.ZIP (33 KB) - PSpice Model
Download
Gerber file

TPS61170 Gerber Files

SLVC153.ZIP (100 KB)
Download
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Design guide: PDF
Schematic: PDF
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The PMP4494 is a 5V to 3.3V 1.2A DC-DC converter with a Vout hold-up circuit. The synchronous buck converter LM20242 is used in the design to provide high efficiency for the system voltage. A boost converter TPS61170 boosts an auxiliary rail from 10V up to 20V to provide the backup voltage. A (...)
Test report: PDF
Schematic: PDF
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Package Pins CAD symbols, footprints & 3D models
WSON (DRV) 6 Ultra Librarian
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