TPS61175

ACTIVE

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

Product details

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Boost, Flyback, Forward, SEPIC Type Converter Vin (min) (V) 2.9 Vin (max) (V) 18 Switching frequency (min) (kHz) 160 Switching frequency (max) (kHz) 2640 Features Enable, Frequency synchronization, Light Load Efficiency, Nonsynchronous Vout (min) (V) 2.9 Vout (max) (V) 38 Iq (typ) (µA) 3000 Duty cycle (max) (%) 93 Switch current limit (typ) (A) 3.8
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Boost, Flyback, Forward, SEPIC Type Converter Vin (min) (V) 2.9 Vin (max) (V) 18 Switching frequency (min) (kHz) 160 Switching frequency (max) (kHz) 2640 Features Enable, Frequency synchronization, Light Load Efficiency, Nonsynchronous Vout (min) (V) 2.9 Vout (max) (V) 38 Iq (typ) (µA) 3000 Duty cycle (max) (%) 93 Switch current limit (typ) (A) 3.8
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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Type Title 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
White paper Understanding Functional Safety FIT Base Failure Rate Estimates per IEC 62380 and SN 29500 (Rev. A) PDF | HTML 30 Apr 2024
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
EVM User's guide TPS61175EVM-326 17 Dec 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

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
Simulation model

TPS61175 TINA-TI Transient Spice Model

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

TPS61175 Unencrypted PSpice Transient Model Package (Rev. A)

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

TPS61175-Q1 TINA-TI Average Reference Design

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

TPS61175-Q1 TINA-TI Average Spice Model

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

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

SLVMBT7A.ZIP (71 KB) - PSpice Model
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

Products
AC/DC & DC/DC controllers (external FET)
LM3017 High Efficiency Low-Side Controller with True Shutdown LM3478 2.97~40V Wide Input Range Boost/SEPIC/Flyback DC-DC Controller LM3478Q-Q1 40-V wide VIN low-side N-channel controller for switching regulators with 10-µA shutdown current LM3481 2.97V to 48V High-Efficiency Controller for Boost, SEPIC and Flyback LM3481-Q1 2.97-V to 48-V high-efficiency controller for boost, SEPIC and flyback, AEC-Q100 qualified LM3488 2.97V to 40V Wide Vin Low-Side N-Channel Controller for Switching Regulators LM3488Q-Q1 40-V wide VIN low-side N-channel controller for switching regulators with 5-µA shutdown current LM3524D 40V, 0.2A 350KHz PWM controller LM3578A 2-V to 40-VIN switching regulators in buck, boost, terminal, depending upon the application LM5020 13-100V Wide Vin, Current Mode PWM Boost, Flyback, Sepic Controller LM5022 6-60V Wide Vin, current mode boost, SEPIC and Flyback controller TL1451 Dual Pulse-Width-Modulation Control Circuit TL1451A 3.6V to 50V dual channel controller with Wide input voltage range TL1451A-EP Enhanced Product Dual Pulse-Width-Modulation Control Circuits TL1451A-Q1 3.6-V to 50-V dual-channel PWM controller, AEC-Q100 qualified TL5001 PWM Controller with wide input range, with ±5% tolerance on reference, operation –20°C to 85°C TL5001A PWM Controller with wide input range, with ±3% tolerance on reference, operation –20°C to 85°C TL5001A-Q1 PWM Controller with wide input range, with ±3% tolerance on reference, operation –20°C to 85°C TL5001M PWM Controller with wide input range, with ±5% tolerance on reference, operation –55°C to 125°C TPS40210-Q1 4.5-V to 52-V wide input range current mode boost controller with 700-mV reference voltage TPS40211-Q1 4.5-V to 52-V wide input range current mode boost controller with 260-mV reference voltage TPS43000 Multi-Topology (buck, boost, sepic) High Frequency DC/DC Controller TPS55010 2.95V To 6V Input, 2W, Isolated DC/DC Converter with Integrated FETS UC2572 Negative output Flyback pulse width modulator
AC/DC & DC/DC converters (integrated FET)
LM25017 7.5-48V Wide Vin, 650mA Constant On-Time Synchronous Buck Regulator LM25018 7.5-48V Wide Vin, 300mA Constant On-Time Synchronous Buck Regulator LM25019 7.5-48V Wide Vin, 100mA Constant On-Time Synchronous Buck Regulator LM2577 3.5-V to 40-V, 3-A low component count step-up regulator LM2585 4-V to 40-V, 3-A step-up wide VIN flyback regulator LM2586 4-V to 40-V, 3-A step-up wide VIN flyback regulator with frequency synchronization LM2587 4V to 40V, 5A Step-Up Wide Vin Flyback Regulator LM2588 4-V to 40-V, 5-A step-up wide VIN flyback regulator with frequency synchronization LM2621 1.2V to 14V input voltage, 1A load current, step-up DC-DC LM2623 0.8V to 14V input voltage, 2A load current, step-up DC-DC LM2735 520kHz/1.6MHz space efficient boost and SEPIC DC-DC regulator LM2735-Q1 520-kHz, 1.6-MHz space efficient boost and SEPIC DC/DC regulator, AEC-Q100 qualified LM34925 7.5-100V Wide Vin, 100mA Integrated Secondary Bias Regulator for Isolated DC/DC Converters LM34926 7.5-100V Wide Vin, 300mA Integrated Secondary Bias Regulator for Isolated DC/DC Converters LM34927 7.5-100V Wide Vin, 600mA Integrated Secondary Bias Regulator for Isolated DC/DC Converters LM5000 3.1-40V Wide Vin, 2A Current Mode Non-Synchronous Boost Regulator LM5001 3.1-75V Wide Vin, 1A Current Mode Non-Synchronous Switch Mode Regulator LM5001-Q1 3.1-V to 75-V wide VIN, 1-A current mode non-synchronous switch mode regulator LM5002 3.1-75V Wide Vin, 0.5A Current Mode Boost, Flyback, Sepic Converter LM5015 4.25-75V, Monolithic Two-Switch Forward DC-DC Regulator LM5017 7.5-100V Wide Vin, 600mA Constant On-Time Synchronous Buck Regulator LM5018 7.5-100V Wide Vin, 300mA Constant On-Time Synchronous Buck Regulator LM5019 7.5-100V Wide Vin, 100mA Constant On-Time Synchronous Buck Regulator LM5160 LM5160 wide input 65V, 2A synchronous buck/Fly-Buck™ converter LM5160-Q1 Wide Input 65V, 2A Synchronous Buck / Fly-Buck™ Converter LM5160A LM5160A Wide Input 65V, 2A Synchronous Buck / Fly-Buck™ Converter LM5161 Wide Input 4.5-V to 100-V, 1-A Synchronous Buck / Fly-Buck Converter LM78S40 1.5A Adjustable Step Up, Step Down or Inverting Regulator TPS55340 5-A, 40-V, wide VIN boost, flyback, & SEPIC converter TPS55340-EP Enhanced integrated, 5-A, 40-V wide input range boost/SEPIC/flyback DC/DC regulator TPS55340-Q1 Integrated, 5-A 40-V wide input range boost/SEPIC/flyback DC/DC regulator, AEC-Q100 qualified TPS61175 3-A ,40V High Voltage Boost Converter with Soft-start and Programmable Switching Frequency TPS61175-Q1 3-A, 40-V high voltage boost converter with soft-start and programmable switching frequency
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
Reference designs

PMP10051 — Low Cost LCD Bias Supply Reference Design

This design provides, with only one switcher and a coupled inductor, four output voltages for biasing a liquid crystal display. The topology is a Sepic with stacked windings, which offers good performance and low EMI.
Test report: PDF
Schematic: PDF
Package Pins CAD symbols, footprints & 3D models
HTSSOP (PWP) 14 Ultra Librarian

Ordering & quality

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  • Ongoing reliability monitoring
Information included:
  • Fab location
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