TPS54040 Status: ACTIVE

3.5V to 42V Input, 0.5 A Step Down SWIFT™ Converter with Eco-Mode™

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Datasheet

0.5-A, 42V Step Down SWIFT DC/DC Converter with Eco-Mode (PDF 2592 KB)
02 Mar 2009

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	TPS54040	TPS54140
Iout(Max)(A)	0.5	1.5
Vin(Min)(V)	3.5	3.5
Vin(Max)(V)	42	42
Vout(Min)(V)	0.8	0.8
Vout(Max)(V)	39	39
Iq(Typ)(mA)	0.116	0.116
Switching Frequency(Max)(kHz)	2500	2500
Switch Current Limit(Typ)(A)	0.6	1.8
Topology	Buck, Inverting Buck/Boost	Buck
Operating Temp Range(Celsius)	-40 to 150	-40 to 150
Pin/Package	10MSOP-PowerPAD	10MSOP-PowerPAD
Rating	Catalog	Catalog
Duty Cycle(Max)(%)	98	98
Regulated Outputs(#)	1	1
Thermal Shutdown	Yes	Yes
	Samples	Samples
	Inventory	Inventory

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Product Information

Features

3.5V to 42V Input Voltage Range
200-m High-Side MOSFET
High Efficiency at Light Loads with a Pulse Skipping Eco-Mode™
116µA Operating Quiescent Current
1.3µA Shutdown Current
100kHz to 2.5MHz Switching Frequency
Synchronizes to External Clock
Adjustable Slow Start/Sequencing
UV and OV Power Good Output
Adjustable UVLO Voltage and Hysteresis
0.8-V Internal Voltage Reference
MSOP10 Package With PowerPAD™
Supported by SwitcherPro™ Software Tool (http://focus.ti.com/docs/toolsw/folders/print/switcherpro.html)
For SWIFT™ Documentation, See the TI Website at http://www.ti.com/swift
APPLICATIONS
- 12-V and 24-V Industrial and Commercial Low Power Systems
- Aftermarket Auto Accessories: Video, GPS, Entertainment

Eco-Mode, PowerPAD, SwitcherPro, SWIFT are trademarks of Texas Instruments.

Description

The TPS54040 device is a 42V, 0.5A, step down regulator with an integrated high side MOSFET. Current mode control provides simple external compensation and flexible component selection. A low ripple pulse skip mode reduces the no load, regulated output supply current to 116µA. Using the enable pin, shutdown supply current is reduced to 1.3µA, when the enable pin is low.

Under voltage lockout is internally set at 2.5V, but can be increased using the enable pin. The output voltage startup ramp is controlled by the slow start pin that can also be configured for sequencing/tracking. An open drain power good signal indicates the output is within 93% to 107% of its nominal voltage.

A wide switching frequency range allows efficiency and external component size to be optimized. Frequency fold back and thermal shutdown protects the part during an overload condition.

The TPS54040 is available in 10 pin thermally enhanced MSOP Power Pad™ package.

Pricing / Packaging / CAD Design Tools / Samples

			Price	Packaging			Samples
Device	Status	Temp (^oC)	Price \| Quantity	Package \| Pins	Top Side Marking	Package QTY \| Package Carrier	Samples
TPS54040DGQ	ACTIVE	-40 to 150	1.60 \| 1ku	MSOP-PowerPAD (DGQ) \| 10	View	80 \| TUBE
TPS54040DGQR	ACTIVE	-40 to 150	1.45 \| 1ku	MSOP-PowerPAD (DGQ) \| 10	View	2500 \| LARGE T&R	Purchase Samples

* 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

Reported Distributor Inventory as of 10:04 AM GMT, 06 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 20 WeeksTPS54040DGQ
Americas	Avnet	3
Asia	Farnell Asia	975
Europe	Farnell	975
TI Lead Time*: 20 WeeksTPS54040DGQR
None Reported View Distributors
View all Distributors

** 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
TPS54040DGQ	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS54040DGQR	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

Most useful technical documents for TPS54040

Tools & Software

*Required

Design Now with SwitcherPro™

Enter your design parameters below to design now with SwitcherPro™

Input
		Min	Max
*	Vin Min:	3.5 V	42 V
*	Vin Max:	3.5 V	42 V

Output
		Min	Max
*	Vout:	0.8 V	39 V
*	Iout Max:	0.0 A	0.5 A

Search for more Power Management devices with Power Quick Search on power.ti.com
To learn more about SwitcherPro™ visit www.ti.com/switcherpro

Name	Part #	Company	Tool / Software Type
TPS54040 42V Input, 5V Output, 0.5A Evaluation Module	TPS54040EVM-456	Texas Instruments	Development Boards/EVMs
SwitcherPro(TM) Online and Desktop Design Creator and Management Software	SWITCHERPRO	Texas Instruments	Application Software
SWIFT™ Converter Inverting Buck/Boost Calculator (Rev. A)(ZIP 504 KB ) 458 views 09 Oct 2009

Simulation Models

PSpice Model
- TPS54040 PSpice Transient Model (ZIP, 66 KB) 28 views
  16 Jul 2009

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TPS54040 Status: ACTIVE

3.5V to 42V Input, 0.5 A Step Down SWIFT™ Converter with Eco-Mode™

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