TPS61175

ACTIVE

3-A ,40V 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 85 Rating Catalog 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

  • 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

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Description

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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Similar but not functionally equivalent to the compared device:
TPS55340 ACTIVE Integrated, 5-A 40-V Wide Input Range Boost/SEPIC/Flyback DC-DC Regulator For applications requiring wider Vin range and/or higher output current.

Technical documentation

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet TPS61175 3-A High-Voltage Boost Converter With Soft Start and Programmable Switching Frequency datasheet (Rev. F) Apr. 24, 2019
* Errata TPS61175PWP Errata Oct. 25, 2013
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) Dec. 11, 2018
Selection guide Power Management Guide 2018 (Rev. R) Jun. 25, 2018
Application note Input Current Limit Solution for USB-Supplied Power System Aug. 03, 2017
Application note Extending the Soft Start Time Without a Soft Start Pin (Rev. B) Jun. 15, 2017
Technical articles How to overcome minimum on-time challenges in switching power supplies Jan. 12, 2017
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
User guide TPS61175EVM-326 Dec. 17, 2008
More literature Seminar 400 Topic 1 - Current-Mode Control of Switching Power Supplies Feb. 15, 2001

Design & development

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

Hardware development

EVALUATION BOARD Download
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
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
3-V to 6-V DC input, 5-V/0.5-A, 1-MHz isolated flyback reference design
PMP4190 — 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.
document-generic Schematic
REFERENCE DESIGNS Download
Automotive Radio USB Power Port (5V@2.1A) and LED Backlight Driver Reference Design
PMP11136 — 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.
document-generic Schematic
REFERENCE DESIGNS Download
Low Cost LCD Bias Supply Reference Design
PMP10051 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.
document-generic Schematic
REFERENCE DESIGNS Download
Reference Design for Telecom Applications (.9V @ .5A)
PMP4742 PMP4742.1 comprises a negative input (-10.8V to -13.2V) to positive output (12V@1A average) inverting buck-boost converter with TPS40210; a hot swap circuit with TPS2420 quickly limits the output current to 2A peak.
Design files
REFERENCE DESIGNS Download
Boost 18V @ 400mA
PMP4672 — tiny 7W boost converter w/ TPS61175, 18V out of 5V
Design files
REFERENCE DESIGNS Download
Uses TPS61175 to generate an output of 18V@1A
PMP5521 — Thr PMP5521 is a simple non-sync Boost converter with an output voltage of 18V @ 1A; the input voltage range is 9V to 13V.
Design files
REFERENCE DESIGNS Download
Low Power Sepic configuration generating output of 5V/800mA
PMP5517 — Wide input range, low power sepic for 5V @800mA w/ TPS61175 (internal switch)
Design files

CAD/CAE symbols

Package Pins Download
HTSSOP (PWP) 14 View options

Ordering & quality

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