TPS61040-Q1 Status: ACTIVE

Automotive Catalog Low Power DC/DC Boost Converter

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Datasheet

Low Power DC/DC Boost Conveter in SOT-23 Package (Rev. B) (tps61040-q1.pdf, 333 KB)
29 Apr 2008 Download

	TPS61040-Q1
Topology	Boost
Type	Inductive
Vin(Min)(V)	1.8
Vin(Max)(V)	6
Switch Current Limit(Typ)(A)	0.4
Output Voltage(Max)(V)	28
Switching Frequency(Max)(kHz)	1000
LED(#)	6
LED Configuration	Series
Over-Voltage Protection(Min)(V)	No
Peak Efficiency(%)	86
Iq(Typ)(mA)	0.05
Operating Temp Range(Celsius)	-40 to 125
Pin/Package	5SOT-23
Iout(Max)(A)	0.09
	Samples
	Inventory

Other qualified versions of TPS61040-Q1

Version	Part Number	Definition
Catalog	TPS61040	TI's standard catalog product

Customers Who Evaluated This Product Also Evaluated

TPS61041-Q1: Automotive Catalog Low Power DC/DC Boost Conveter
TPS61040: 28-V, 400-mA Switch Boost Converter in SOT-23 for LCD and White LED Applications
TPS61160: White LED Driver with Digital and PWM Brightness Control in 2mm x 2mm Package

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Product Information

Features

Qualified For Automotive Application
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-A Typical No Load Quiescent Current
1-A Typical Shutdown Current
Internal Softstart
Available in a Tiny 5-Pin SOT23 Package
APPLICATIONS
- LCD Bias Supply
- White-LED Supply for LCD Backlights
- Digital Still Camera
- PDAs, Organizers, and Handheld PCs
- Cellular Phones
- Internet Audio Player
- Standard 3.3 V/5 V to 12 V Conversion

Description

The TPS61040/41 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/5 V to 12-V power conversions.

The TPS61040/41 operates with a switching frequency up to 1 MHz. This allows the use of small external components using ceramic as well as tantalum output capacitors. Together with the tiny SOT23 package, the TPS61040/41 gives a small overall solution size. The TPS61040 has an internal 400-mA switch current limit, while the TPS61041 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 A) together with an optimized control scheme, allows device operation at high efficiencies over the entire load current range.

Pricing / Packaging / CAD Design Tools / Samples

			Price	Packaging			CAD Design Tools		Samples
Device	Status	Temp (^oC)	Price \| Quantity	Package \| Pins	Top Side Marking	Package QTY \| Package Carrier	Symbols	Footprints	Samples
TPS61040QDBVRQ1	ACTIVE	-40 to 125	1.05 \| 1ku	SOT-23 (DBV) \| 5	View	3000

* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.

Inventory

	TI Inventory Status			Reported Distributor Inventory
TPS61040QDBVRQ1	As of 8:54 AM GMT, 30 Nov 2008			As of 8:54 AM GMT, 30 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	6000*	8573 \| 12 Jan	16 Weeks	Americas	DigiKey	>1k
		>10k \| 2 Mar			Rochester Electronics	>1k
View all Distributors

* Our information is updated daily, so please check back with us soon if this does not meet your needs. You may also contact your TI Authorized Distributor , including those listed above, for real time stock information.

** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.

Quality & Lead (Pb)-Free Data

	Product Content				DPPM / MTBF / FIT Rate
Device	Eco Plan*	Lead / Ball Finish	MSL Rating / Peak Reflow	Details	Details
TPS61040QDBVRQ1	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View

* The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details.

If the information you are requesting is not available online at this time, contact one of our Product Information Centers regarding the availability of this information.

Technical Documents

Datasheets

Low Power DC/DC Boost Conveter in SOT-23 Package (Rev. B) (tps61040-q1.pdf, 333 KB)
29 Apr 2008 Download

Application Notes

Optimizing Transient Response of Internally Compensated DC-DC Converters (slva289.htm, 8 KB)
28 Jan 2008 Abstract

View Application Notes for White LED Drivers

Alternative Products - Are similar to TPS61040-Q1
Customers Who Evaluated This Product Also Evaluated...
Part #	Name	Comments
TPS61041-Q1	Automotive Catalog Low Power DC/DC Boost Conveter	TI customers also evaluated this product.
TPS61040	28-V, 400-mA Switch Boost Converter in SOT-23 for LCD and White LED Applications	TI customers also evaluated this product.
TPS61160	White LED Driver with Digital and PWM Brightness Control in 2mm x 2mm Package	TI customers also evaluated this product.
TPS61041	28-V, 250-mA Switch Boost Converter in SOT-23 for LCD and White LED Applications	TI customers also evaluated this product.
TPS60252	High Efficiency Charge Pump for 7 WLEDs with I2C Interface	TI customers also evaluated this product.

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