TPS61175-Q1

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

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Product details

Parameters

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 Regulated outputs (#) 1 Switching frequency (Min) (kHz) 160 Switching frequency (Max) (kHz) 2640 Iq (Typ) (mA) 3 Features Enable, Frequency Synchronization, Light Load Efficiency Duty cycle (Max) (%) 93 Operating temperature range (C) -40 to 125 Rating Automotive open-in-new Find other Boost converters (integrated switch)

Package | Pins | Size

HTSSOP (PWP) 14 32 mm² 5 x 6.4 open-in-new Find other Boost converters (integrated switch)

Features

  • 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™

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open-in-new Find other Boost converters (integrated switch)

Description

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.

open-in-new Find other Boost converters (integrated switch)
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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) Mar. 25, 2020
Functional safety information TPS61175-Q1 Functional Safety, FIT Rate, and Failure Mode Distribution May 22, 2020
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) Dec. 11, 2018
Technical article Is a LiFePO4 or Lithium-ion battery better for eCall systems? Oct. 25, 2016
Technical article A complete low-voltage backup battery solution for eCall systems Mar. 05, 2016
Technical article An automotive boost converter for all your infotainment needs Mar. 31, 2015
Application note Basic Calculation of a Boost Converter's Power Stage (Rev. C) Jan. 08, 2014
Application note Using the TPS6215x in an Inverting Buck-Boost Topology.. (Rev. C) Dec. 19, 2012
Application note Design considerations for a resistive feedback divider in a DC/DC converter Apr. 26, 2012
Application note IQ: What it is, what it isn’t, and how to use it Jun. 17, 2011
Application note Description Compensating the Current Mode Boost Control Loop Dec. 09, 2010
Application note Designing a Split-Rail SEPIC With the TPS61175 Feb. 02, 2010
Application note Understanding TPS61175's Pulse-Skipping Function Jul. 30, 2009
Application note How to Design a SEPIC Converter With the TPS61175 Jun. 12, 2009
Application note Simple Power Good circuit using the TPS61175 FREQ pin as reference May 05, 2009
Application note Q1 2009 Issue Analog Applications Journal Mar. 11, 2009
Application note Using a portable-power boost converter in an isolated flyback application Mar. 11, 2009

Design & development

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

Hardware development

EVALUATION BOARD Download
document-generic User guide
49
Description

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

Features
  • 2.9-V to 18-V Input Voltage Range
  • 3A, 40V 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
EVALUATION BOARD Download
document-generic User guide
49
Description

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.

Features
  • 2.9-V to 18-V Input Voltage Range
  • 3A, 40V 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

Design tools & simulation

SIMULATION MODEL Download
SLVM479A.ZIP (33 KB) - PSpice Model
SIMULATION MODEL Download
SLVM755.TSC (791 KB) - TINA-TI Reference Design
SIMULATION MODEL Download
SLVM756.ZIP (39 KB) - TINA-TI Spice Model
SIMULATION MODEL Download
SLVMBT7A.ZIP (71 KB) - PSpice Model
SIMULATION MODEL Download
SLVMBX0.ZIP (9 KB) - TINA-TI Spice Model
SIMULATION MODEL Download
SLVMBX1.TSC (3359 KB) - TINA-TI Reference Design
SIMULATION TOOL Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — 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 (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
CALCULATION TOOL Download
Fly-Buck and Flyback Topology Selector
FLYBUCK-FLYBACK-DESIGN-CALC 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.
Features
  • Features isolated topologies like Fly-Buck™, Fly-Buck-Boost, DCM and CCM Flyback
  • Capability to design up to 6 isolated outputs
  • Recommends ICs for desired application design
  • Incorporates loop compensation in designs
  • Compares efficiency, external component count and transformer currents for every topology (...)

Reference designs

REFERENCE DESIGNS Download
Automotive eCall Power Supply Reference Design with High Intermediate Voltage
PMP9768 — 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 (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Automotive eCall Power Supply Reference Design with Low Intermediate Voltage
PMP9769 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 (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
HTSSOP (PWP) 14 View options

Ordering & quality

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  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

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