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TPS61040DRVT

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Texas Instruments

28-V, 400-MA SWITCH BOOST CONVERTER IN SOT-23 FOR LCD AND WHITE LED APPLICATIONS

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WSON (DRV)
Integrated Circuits (ICs)

TPS61040DRVT

Active
Texas Instruments

28-V, 400-MA SWITCH BOOST CONVERTER IN SOT-23 FOR LCD AND WHITE LED APPLICATIONS

Technical Specifications

Parameters and characteristics for this part

SpecificationTPS61040DRVT
ApplicationsBacklight
Current - Output / Channel350 mA
DimmingPWM
Frequency1 MHz
Internal Switch(s)True
Mounting TypeSurface Mount
Number of Outputs1
Operating Temperature [Max]85 °C
Operating Temperature [Min]-40 °C
Supplier Device Package6-WSON (2x2)
TopologyStep-Up (Boost)
TypeDC DC Regulator
Voltage - Output28 V
Voltage - Supply (Max) [Max]6 V
Voltage - Supply (Min) [Min]1.8 V

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

DistributorPackageQuantity$
DigikeyCut Tape (CT) 1$ 1.72
10$ 1.55
25$ 1.46
100$ 1.24
Digi-Reel® 1$ 1.72
10$ 1.55
25$ 1.46
100$ 1.24
Tape & Reel (TR) 250$ 1.17
500$ 1.03
750$ 1.03
Texas InstrumentsSMALL T&R 1$ 2.03
100$ 1.56
250$ 1.15
1000$ 0.82

Description

General part information

TPS61040-Q1 Series

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.

Documents

Technical documentation and resources

White LED Power Supply Design Techniques

White paper

Feedforward Capacitor Makes Boost Converter Fast and Stable

Application note

Extending Battery Life with the TPS61040 White Light LED Driver

Application note

Coupled inductors broaden DC/DC converter usage

Analog Design Journal

3Q 2010 Issue Analog Applications Journal

Analog Design Journal

TPS6104x Low-Power DC-DC Boost Converter in SOT-23 and WSON Packages datasheet (Rev. K)

Data sheet

Performing Accurate PFM Mode Efficiency Measurements (Rev. A)

Application note

Single Cell TPS61041 LED Driver

Application note

High Voltage Power Supply Using a Highly Integrated DC/DC Converter (TPS61040)

Application note

Design considerations for a resistive feedback divider in a DC/DC converter

Analog Design Journal

TPS61045EVM-231: Adjustable LCD Boost Converter EVM

EVM User's guide

Extending Battery Life With the TPS61040 Low Power DC-DC Boost Converter

Application note

Using External Bias to Broaden Input Voltage Range of Boost Converters

Application note

TPS61040EVM-001 Evaluation Module

EVM User's guide

TPS61040EVM-002 White Light LED Bias Supply EVM (Rev. A)

EVM User's guide

White Light LED Driver With Gradual Dimming (Rev. A)

Application note

Optimizing Transient Response of Internally Compensated DC-DC Converters (Rev. B)

Application note

Power Management Guide 2018 (Rev. R)

Selection guide

IQ: What it is, what it isn’t, and how to use it

Analog Design Journal

Extending the Soft Start Time Without a Soft Start Pin (Rev. B)

Application note

Improved Overvoltage Protection for the TPS61040/1

Application note

High Voltage Power Supply Using the TPS61040

Application note

High Voltage Power Supply Using the Highly Integrated TPS61040

Application note