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TPS61175

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3-A ,40V High Voltage Boost Converter with Soft-start and Programmable Switching Frequency

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Data sheet
Errata

TPS61175

ACTIVE
Data sheet Order now

Product details

Rating Catalog Topology Boost, Flyback, SEPIC Vin (max) (V) 18 Vin (min) (V) 2.9 Vout (max) (V) 38 Vout (min) (V) 2.9 Switch current limit (typ) (A) 3.8 Features Enable, Frequency synchronization, Light-load efficiency, Nonsynchronous Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.003 Duty cycle (max) (%) 93
Rating Catalog Topology Boost, Flyback, SEPIC Vin (max) (V) 18 Vin (min) (V) 2.9 Vout (max) (V) 38 Vout (min) (V) 2.9 Switch current limit (typ) (A) 3.8 Features Enable, Frequency synchronization, Light-load efficiency, Nonsynchronous Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.003 Duty cycle (max) (%) 93
HTSSOP (PWP) 14 32 mm² 5 x 6.4
  • 2.9-V to 18-V Input voltage range
  • 3-A, 40-V Internal switch
  • High-efficiency power conversion: Up to 93%
  • Frequency set by external resistor: 200 kHz to 2.2 MHz
  • Synchronous external switching frequency
  • User-defined soft start into full load
  • Skip-switching cycle for output regulation at light load
  • 14-Pin HTSSOP package with PowerPad™
  • Create a custom design using the TPS61175 with the WEBENCH Power Designer
  • 2.9-V to 18-V Input voltage range
  • 3-A, 40-V Internal switch
  • High-efficiency power conversion: Up to 93%
  • Frequency set by external resistor: 200 kHz to 2.2 MHz
  • Synchronous external switching frequency
  • User-defined soft start into full load
  • Skip-switching cycle for output regulation at light load
  • 14-Pin HTSSOP package with PowerPad™
  • Create a custom design using the TPS61175 with the WEBENCH Power Designer

The TPS61175 device is a monolithic switching regulator with integrated 3-A, 40-V power switch. The device can be configured in several standard switching-regulator topologies, including boost, SEPIC, and flyback. The device has a wide input voltage range to support application with input voltage from multicell batteries or regulated 5-V, 12-V power rails.

The TPS61175 regulates the output voltage with current mode pulse width modulation (PWM) control. The switching frequency of PWM is set by either an external resistor or an external clock signal. The user can program the switching frequency from 200 kHz to 2.2 MHz.

The device features a programmable soft-start function to limit inrush current during start-up, and has other built-in protection features, such as pulse-by-pulse overcurrent limit and thermal shutdown. The TPS61175 is available in 14-pin HTSSOP package with PowerPad.

The TPS61175 device is a monolithic switching regulator with integrated 3-A, 40-V power switch. The device can be configured in several standard switching-regulator topologies, including boost, SEPIC, and flyback. The device has a wide input voltage range to support application with input voltage from multicell batteries or regulated 5-V, 12-V power rails.

The TPS61175 regulates the output voltage with current mode pulse width modulation (PWM) control. The switching frequency of PWM is set by either an external resistor or an external clock signal. The user can program the switching frequency from 200 kHz to 2.2 MHz.

The device features a programmable soft-start function to limit inrush current during start-up, and has other built-in protection features, such as pulse-by-pulse overcurrent limit and thermal shutdown. The TPS61175 is available in 14-pin HTSSOP package with PowerPad.
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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet TPS61175 3-A High-Voltage Boost Converter With Soft Start and Programmable Switching Frequency datasheet (Rev. F) PDF | HTML 24 Apr 2019
* Errata TPS61175PWP Errata 25 Oct 2013
Application note Using the TPS6215x in an Inverting Buck-Boost Topology.. (Rev. D) PDF | HTML 23 Jan 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
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
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
Technical article How to overcome minimum on-time challenges in switching power supplies PDF | HTML 12 Jan 2017
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 Description Compensating the Current Mode Boost Control Loop 09 Dec 2010
Application note Designing a Split-Rail SEPIC With the TPS61175 02 Feb 2010
Application note Understanding TPS61175's Pulse-Skipping Function 30 Jul 2009
Application note How to Design a SEPIC Converter With the TPS61175 12 Jun 2009
Application note Simple Power Good circuit using the TPS61175 FREQ pin as reference 05 May 2009
Analog Design Journal Q1 2009 Issue Analog Applications Journal 11 Mar 2009
Analog Design Journal Using a portable-power boost converter in an isolated flyback application 11 Mar 2009
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

TPS61175EVM-326 — TPS61175 12V Input, 24V Output, 1.2A Evaluation Module

The TPS61175EVM-326 facilitates evaluation of the TPS61175 3-A High Voltage Boost Converter IC.

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

TPS61175EVM-588 — TPS61175 9V to 18V Input, 12V Output, SEPIC Evaluation Module

The TPS61175EVM-588 evaluation module is a fully assembled and tested circuit for evaluating the TPS61175 high voltage boost converter in a split-rail SEPIC configuration.

User guide: PDF
Not available on TI.com
Simulation model

TPS61175 TINA-TI Transient Reference Design

SLVM755.TSC (791 KB) - TINA-TI Reference Design
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Simulation model

TPS61175 TINA-TI Transient Spice Model

SLVM756.ZIP (39 KB) - TINA-TI Spice Model
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Simulation model

TPS61175 Unencrypted PSpice Transient Model Package (Rev. A)

SLVM479A.ZIP (33 KB) - PSpice Model
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Simulation model

TPS61175-Q1 TINA-TI Average Reference Design

SLVMBX1.TSC (3359 KB) - TINA-TI Reference Design
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Simulation model

TPS61175-Q1 TINA-TI Average Spice Model

SLVMBX0.ZIP (9 KB) - TINA-TI Spice Model
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Simulation model

TPS61175-Q1 Unencrypted PSpice Average Model Package (Rev. A)

SLVMBT7A.ZIP (71 KB) - PSpice Model
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Calculation tool

FLYBUCK-FLYBACK-DESIGN-CALC — Flybuck / Flyback Calculator

This tool helps a power supply engineer to select the right isolated DC-DC topology based on the specifications. Depending on the topology chosen, the calculator also recommends the right IC for the design.

Supported products & hardware

Supported products & hardware
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Reference designs

PMP4190 — 3-V to 6-V DC input, 5-V/0.5-A, 1-MHz isolated flyback reference design

This reference design uses the TPS61175 boost converter to drive a flyback power stage. With its integrated MOSFET, the TPS61175 reduces the circuit complexity and footprint. In addition, operating at 1MHz reduces the size of the passive components.
Test report: PDF
Schematic: PDF
Reference designs

PMP11136 — Automotive Radio USB Power Port (5V@2.1A) and LED Backlight Driver Reference Design

The PMP11136 reference design supplies cable drop compensated USB outputs of 5V @ 2.1A and 5V @ 1A. Additionally, there is a buck converter output of 3.3V @ 2.5A and a 12V @ 0.163A current regulated LED boost converter.
Test report: PDF
Schematic: PDF
Package Pins CAD symbols, footprints & 3D models
HTSSOP (PWP) 14 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

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Information included:
  • Fab location
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Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

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