TPS61040

ACTIVE

28-V, 400-mA Switch Boost Converter in SOT-23 for LCD and White LED Applications

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Product details

Parameters

Vin (Min) (V) 1.8 Vin (Max) (V) 6 Vout (Min) (V) 1.8 Vout (Max) (V) 28 Switch current limit (Typ) (A) 0.4 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 85 Rating Catalog open-in-new Find other Boost converters (integrated switch)

Package | Pins | Size

SOT-23 (DBV) 5 5 mm² 2.9 x 1.6 SOT-23-THN (DDC) 5 8 mm² 2.9 x 2.8 WSON (DRV) 6 4 mm² 2 x 2 open-in-new Find other Boost converters (integrated switch)

Features

  • 1.8-V to 6-V Input Voltage Range
  • Adjustable Output Voltage Range up to 28 V
  • 400-mA (TPS61040) and 250-mA (TPS61041) Internal Switch Current
  • Up to 1-MHz Switching Frequency
  • 28-µA Typical No-Load Quiescent Current
  • 1-µA Typical Shutdown Current
  • Internal Soft Start
  • Available in SOT23-5, TSOT23-5,
    and 2-mm × 2-mm × 0.8-mm WSON Packages

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Description

The TPS6104x is a high-frequency boost converter dedicated for small to medium LCD bias supply and white LED backlight supplies. The device is ideal to generate output voltages up to 28 V from a dual-cell NiMH/NiCd or a single-cell Li-Ion battery. The part can also be used to generate standard 3.3-V or 5-V to 12-V power conversions.

The TPS6104x operates with a switching frequency up to 1 MHz. This frequency allows the use of small external components using ceramic as well as tantalum output capacitors. Together with the thin WSON package, the TPS6104x gives a very small overall solution size. The TPS61040 device has an internal 400-mA switch current limit, while the TPS61041 device has a 250-mA switch current limit, offering lower output voltage ripple and allows the use of a smaller form factor inductor for lower power applications. The low quiescent current (typically 28 µA) together with an optimized control scheme, allows device operation at very high efficiencies over the entire load current range.

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TPS61046 ACTIVE 28-V Output Voltage Boost Converter in WCSP Package For applications requiring smaller package or true disconnection.

Technical documentation

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Type Title Date
* Datasheet TPS6104x Low-Power DC-DC Boost Converter in SOT-23 and WSON Packages datasheet (Rev. J) Dec. 18, 2019
Application notes Performing Accurate PFM Mode Efficiency Measurements (Rev. A) Dec. 11, 2018
Selection guides Power Management Guide 2018 (Rev. R) Jun. 25, 2018
Application notes Optimizing Transient Response of Internally Compensated DC-DC Converters (Rev. B) Nov. 29, 2017
Application notes Extending the Soft Start Time Without a Soft Start Pin (Rev. B) Jun. 15, 2017
Application notes Feedforward Capacitor Makes Boost Converter Fast and Stable Nov. 02, 2016
Technical articles A smaller, more integrated boost for OLED displays Aug. 20, 2015
Application notes Design considerations for a resistive feedback divider in a DC/DC converter Apr. 26, 2012
Application notes IQ: What it is, what it isn’t, and how to use it Jun. 17, 2011
More literature Журнал по применению аналоговых компонентов 3кв. 2010 Jan. 13, 2011
Application notes 3Q 2010 Issue Analog Applications Journal Aug. 11, 2010
Application notes Coupled inductors broaden DC/DC converter usage Aug. 11, 2010
Application notes White Light LED Driver With Gradual Dimming (Rev. A) Jan. 10, 2007
Application notes Extending Battery Life With the TPS61040 Low Power DC-DC Boost Converter Jul. 17, 2006
Application notes High Voltage Power Supply Using the Highly Integrated TPS61040 Jul. 17, 2006
Application notes Improved Overvoltage Protection for the TPS61040/1 Mar. 15, 2006
User guides TPS61040EVM-002 White Light LED Bias Supply EVM (Rev. A) Sep. 14, 2004
Application notes High Voltage Power Supply Using a Highly Integrated DC/DC Converter (TPS61040) Jun. 19, 2003
Application notes Single Cell TPS61041 LED Driver Jun. 09, 2003
White papers White LED Power Supply Design Techniques Feb. 18, 2003
User guides TPS61045EVM-231: Adjustable LCD Boost Converter EVM Jan. 22, 2003
Application notes High Voltage Power Supply Using the TPS61040 Jul. 09, 2002
Application notes Extending Battery Life with the TPS61040 White Light LED Driver May 03, 2002
User guides TPS61040EVM-001 Evaluation Module Mar. 01, 2002

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
$49.00
Description

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.

Features

The EVM is configured as LCD bias supply and the TPS61040 is set up to generate 18V at 20mA from a single cell Li ion battery. The EVM can be modified to accomodate other battery chemistries or applications. The TPS61041 can be evaluated simply by replacing the TPS61040 IC on the EVM.

EVALUATION BOARDS Download
document-generic User guide
$49.00
Description

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.

Features

The EVM is configured as white LED bias supply and the TPS61040 is set up to generate 20mA of bias current into four white LEDs from a single cell Li ion battery. The EVM can be modified to accomodate other battery chemistries or applications. The TPS61041 can be evaluated simply by replacing the (...)

EVALUATION BOARDS Download
TPS61045 Evaluation Module
TPS61045EVM-231
document-generic User guide
$49.00
Description

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 (...)

Design tools & simulation

SIMULATION MODELS Download
SLIM251A.ZIP (39 KB) - PSpice Model
SIMULATION MODELS Download
SLVM131.ZIP (16 KB) - TINA-TI Spice Model
SIMULATION MODELS Download
SLVM132.TSC (836 KB) - TINA-TI Reference Design
SIMULATION MODELS Download
SLVMDA8.ZIP (2 KB) - PSpice Model
CALCULATION TOOLS Download
Free Tool: TPS61040 And TPS6141 Component Calculator
TPS6104XCALC — For designers interested in using the TPS61040 or TPS61041, this spreadsheet calculator allows the engineer to determine circuit performance and optimum component values for their designs.
CALCULATION TOOLS Download
SLVC007B.ZIP (36 KB)
BILL OF MATERIALS (BOM) Download
SLVR187.PDF (220 KB)

Reference designs

REFERENCE DESIGNS Download
MSP430FR2311 Microcontroller IR Reflection Sensing Reference Design
TIDM-FRAM-IRREFLECTIONSENSING — This reference design demonstrates an IR reflection sensing solution based on an MSP430™ FRAM microcontroller (MCU) with configurable analog for sensing and measurement applications. It demonstrates the MCU's ultra-low-power feature with the benefit of FRAM technology and integrated (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
A Robust Glass-Breakage Detector Reference Design
TIDM-GBD-ROBUST This reference design describes a simple as well as a robust glass breakage detector designs using the MSP430F2274 and was developed to operate at low power, allowing long battery life. The simple design algorithm is based on the spectral analysis of a typical glass breakage signal by analyzing (...)
document-generic Schematic
REFERENCE DESIGNS Download
Isolated, High-Accuracy Analog Input Module Reference Design Using 16-Bit ADC and Digital Isolator
TIDA-01214 — This reference design provides accurate measurements of AC voltage and current inputs using a precision 16-bit SAR ADC over a wide input range, covering protection and measurement range (including sampling requirements of IEC 61850-9-2), simplifying system design and improving trip time performance (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Low Power Isolated Flyback Reference Design
PMP30064 — This power supply reference design converts an input voltage of 8.5 - 10.5V to an isolated output voltage of 6V with a maximum load current of 80mA.
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Low power boost with cascaded NPN
PMP4677 — tiny boost for only 50mW output power to drive a 48V display out of 5V
Design files
REFERENCE DESIGNS Download
Buck/Boost Synchronous Controller
TPS61040REF-001 — 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. The EVM is configured as LCD bias supply and the TPS61040 is set up to generate 18V at 20mA from a single cell Li ion (...)

CAD/CAE symbols

Package Pins Download
SOT-23 (DBV) 5 View options
SOT-23-THIN (DDC) 5 View options
WSON (DRV) 6 View options

Ordering & quality

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