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Boost converters (integrated switch)

TPS61175-Q1

ACTIVE

3-A, 40-V high voltage boost converter with soft-start and programmable switching frequency

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Data sheet

TPS61175-Q1

ACTIVE
Data sheet Order now

Product details

Topology Boost, Flyback, Forward, SEPIC Vin (min) (V) 2.9 Vin (max) (V) 18 Vout (min) (V) 2.9 Vout (max) (V) 38 Switch current limit (typ) (A) 3.8 Type Converter Regulated outputs (#) 1 Switching frequency (min) (kHz) 160 Switching frequency (max) (kHz) 2640 Iq (typ) (mA) 3 Features Enable, Frequency synchronization, Light Load Efficiency, Nonsynchronous TI functional safety category Functional Safety-Capable Duty cycle (max) (%) 93 Operating temperature range (°C) -40 to 125 Rating Automotive
Topology Boost, Flyback, Forward, SEPIC Vin (min) (V) 2.9 Vin (max) (V) 18 Vout (min) (V) 2.9 Vout (max) (V) 38 Switch current limit (typ) (A) 3.8 Type Converter Regulated outputs (#) 1 Switching frequency (min) (kHz) 160 Switching frequency (max) (kHz) 2640 Iq (typ) (mA) 3 Features Enable, Frequency synchronization, Light Load Efficiency, Nonsynchronous TI functional safety category Functional Safety-Capable Duty cycle (max) (%) 93 Operating temperature range (°C) -40 to 125 Rating Automotive
HTSSOP (PWP) 14 32 mm² 5 x 6.4
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: -40°C to 125°C junction operating temperature range
  • Functional Safety-Capable
  • 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™
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: -40°C to 125°C junction operating temperature range
  • Functional Safety-Capable
  • 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™

The TPS61175-Q1 is a monolithic switching regulator with integrated 3-A, 40-V power switch. It 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 multi-cell batteries or regulated 5-V, 12-V power rails.

The TPS61175-Q1 regulates the output voltage with current mode PWM (pulse width modulation) control. The switching frequency of PWM is either set by 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 built-in other protection features, such as pulse-by-pulse over current limit and thermal shutdown. The TPS61175-Q1 is available in 14-pin HTSSOP package with PowerPAD.

The TPS61175-Q1 is a monolithic switching regulator with integrated 3-A, 40-V power switch. It 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 multi-cell batteries or regulated 5-V, 12-V power rails.

The TPS61175-Q1 regulates the output voltage with current mode PWM (pulse width modulation) control. The switching frequency of PWM is either set by 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 built-in other protection features, such as pulse-by-pulse over current limit and thermal shutdown. The TPS61175-Q1 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-Q1 3-A High Voltage Boost Converter with Soft-start and Programmable Switching Frequency datasheet (Rev. B) PDF | HTML 25 Jun 2020
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
Functional safety information TPS61175-Q1 Functional Safety, FIT Rate, and Failure Mode Distribution 22 May 2020
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 11 Dec 2018
Technical article Is a LiFePO4 or Lithium-ion battery better for eCall systems? 25 Oct 2016
Technical article A complete low-voltage backup battery solution for eCall systems 05 Mar 2016
Technical article An automotive boost converter for all your infotainment needs 31 Mar 2015
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

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 — Fly-Buck and Flyback Topology Selector

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.
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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 (...)
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Reference designs

PMP9768 — Automotive eCall Power Supply Reference Design with High Intermediate Voltage

This reference design includes a complete power management solution for a standalone emergency call (eCall) system in an automotive environment. The circuit is supplied directly from the car battery rail. It also manages a backup battery to power the eCall system while the car battery rail is not (...)
Test report: PDF
Schematic: PDF
Reference designs

PMP9769 — Automotive eCall Power Supply Reference Design with Low Intermediate Voltage

This reference design includes a complete power management solution for a standalone emergency call (eCall) system in an automotive environment. The circuit is supplied directly from the car battery rail. It also manages a backup battery to power the eCall system while the car battery rail is not (...)
Test report: PDF
Schematic: PDF
Package Pins Download
HTSSOP (PWP) 14 View options
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