Product details

Vin (Min) (V) 1.8 Vin (Max) (V) 6 Vout (Min) (V) 1.8 Vout (Max) (V) 28 Switch current limit (Typ) (A) 0.25 Regulated outputs (#) 1 Switching frequency (Min) (kHz) 50 Switching frequency (Max) (kHz) 1000 Iq (Typ) (mA) 0.028 Features Enable Duty cycle (Max) (%) 88 Operating temperature range (C) -40 to 125 Rating Automotive
Vin (Min) (V) 1.8 Vin (Max) (V) 6 Vout (Min) (V) 1.8 Vout (Max) (V) 28 Switch current limit (Typ) (A) 0.25 Regulated outputs (#) 1 Switching frequency (Min) (kHz) 50 Switching frequency (Max) (kHz) 1000 Iq (Typ) (mA) 0.028 Features Enable Duty cycle (Max) (%) 88 Operating temperature range (C) -40 to 125 Rating Automotive
SOT-23 (DBV) 5 5 mm² 1.60 x 2.90
  • Qualified for Automotive Applications
  • 1.8-V to 6-V Input Voltage Range
  • Adjustable Output Voltage Range Up to 28 V
  • 400-mA (TPS61040-Q1) and 250-mA (TPS61041-Q1) Internal Switch Current
  • Up to 1-MHz Switching Frequency
  • 28-µA Typical No Load Quiescent Current
  • 1-µA Typical Shutdown Current
  • Internal Soft Start
  • Space-Saving, 5-Pin SOT-23 Package
  • Qualified for Automotive Applications
  • 1.8-V to 6-V Input Voltage Range
  • Adjustable Output Voltage Range Up to 28 V
  • 400-mA (TPS61040-Q1) and 250-mA (TPS61041-Q1) Internal Switch Current
  • Up to 1-MHz Switching Frequency
  • 28-µA Typical No Load Quiescent Current
  • 1-µA Typical Shutdown Current
  • Internal Soft Start
  • Space-Saving, 5-Pin SOT-23 Package

The TPS6104x-Q1 devices are high-frequency boost converters for automotive applications. The devices are ideal for generating output voltages up to 28 V from a pre-regulated low voltage rail, dual-cell NiMH/NiCd or a single-cell Li-Ion battery, supporting input voltages from 1.8 V to 6 V.

The TPS6104x-Q1 devices operate with a switching frequency up to 1 MHz, allowing the use of small external components such as ceramic as well as tantalum output capacitors. Combined with the space-saving, 5-pin SOT-23 package, the TPS6104x-Q1 devices accomplish a small overall solution size. The TPS61040-Q1 device has an internal 400-mA switch current limit, while the TPS61041-Q1 device has a 250-mA switch current limit, offering lower output voltage ripple and allowing the use of a smaller form factor inductor for lower-power applications.

The TPS6104x-Q1 devices operate in a pulse frequency modulation (PFM) scheme with constant peak current control. The combination of low quiescent current (28 µA typical) and the optimized control scheme enable operation of the devices at high efficiencies over the entire load current range.

The TPS6104x-Q1 devices are high-frequency boost converters for automotive applications. The devices are ideal for generating output voltages up to 28 V from a pre-regulated low voltage rail, dual-cell NiMH/NiCd or a single-cell Li-Ion battery, supporting input voltages from 1.8 V to 6 V.

The TPS6104x-Q1 devices operate with a switching frequency up to 1 MHz, allowing the use of small external components such as ceramic as well as tantalum output capacitors. Combined with the space-saving, 5-pin SOT-23 package, the TPS6104x-Q1 devices accomplish a small overall solution size. The TPS61040-Q1 device has an internal 400-mA switch current limit, while the TPS61041-Q1 device has a 250-mA switch current limit, offering lower output voltage ripple and allowing the use of a smaller form factor inductor for lower-power applications.

The TPS6104x-Q1 devices operate in a pulse frequency modulation (PFM) scheme with constant peak current control. The combination of low quiescent current (28 µA typical) and the optimized control scheme enable operation of the devices at high efficiencies over the entire load current range.

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Technical documentation

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Type Title Date
* Data sheet TPS6104x-Q1 Low-Power DC-DC Boost Converter in SOT-23 Package datasheet (Rev. D) 25 Jan 2016
Application note High-Side MOSFET Driver Power Supply Using the TPS61041-Q1 18 Apr 2022
Functional safety information TPS6104x-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
Application note Optimizing Transient Response of Internally Compensated DC-DC Converters (Rev. B) 29 Nov 2017
Application note Extending the Soft Start Time Without a Soft Start Pin (Rev. B) 15 Jun 2017
Analog Design Journal Design considerations for a resistive feedback divider in a DC/DC converter 26 Apr 2012

Design & development

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

Evaluation board

TPS61040EVM-001 — TPS61040 Boost Converter Evaluation Module for LCD Supply, 18V/20mA

The TPS61040EVM-001 is an evaluation tool for the SOT-23 TPS61040 inductive boost converter which can supply voltages up to 28V from input voltages in the range of 1.8V to 6V.

Not available on TI.com
Evaluation board

TPS61040EVM-002 — TPS61040 Boost Converter Evaluation Module for White LED Supply

The TPS61040EVM-002 is an evaluation tool for the SOT-23 TPS61040 inductive boost converter which can supply voltages up to 28V from input voltages in the range of 1.8V to 6V.

Not available on TI.com
Evaluation board

TPS61045EVM-231 — TPS61045 Evaluation Module

The TPS61045EVM-231 is an evaluation tool for the TPS61045 inductive boost converter in 3x3mm2 QFN that can supply voltages up to 28V from input voltages in the range of 1.8V to 6V. The EVM is configured to supply a highly efficient, digitally adjustable, 18-V output for LCD bias supplies. This EVM (...)

Not available on TI.com
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 (...)
Reference designs

TIDA-020013 — Automotive SPD-SmartGlass™ driver reference design

This reference design details how to drive various forms of electronically dimmable glass, including SPD-SmartGlass™ and APD Glass from a car battery. This illustrates how to make a DC/AC inverter using the LM5155-Q1 boost converter with a charge pump, two UCC27712-Q1 half bridge drivers, (...)
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SOT-23 (DBV) 5 View options

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