Low Input (2.25V-5.5V) 600 kHz Frequency, Synchronous Buck Controller, Source/ Sink, Prebias Operati - TPS40009

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Features	Samples	Technical Documents
Quality & Pb-Free Data	Pricing/Packaging	Application Notes
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Tools & Software	Symbols/Footprints	Reference Designs

Datasheet

	LOW INPUT BUCK CONTROLLER (Rev. B) (tps40009.pdf, 804 KB) 08 Feb 2005 Download

	TPS40000	TPS40002	TPS40007	TPS40009
Topology	Buck	Buck	Buck	Buck
Vin(Min)(V)	2.25	2.25	2.25	2.25
Vin(Max)(V)	5.5	5.5	5.5	5.5
Vout(Min)(V)	0.7	0.7	0.7	0.7
Vout(Max)(V)	4	4	4	4
Regulated Outputs(#)	1	1	1	1
Iout(Max)(A)	15	15	15	15
Switching Frequency(Max)(kHz)	300	600	300	600
Iq(Typ)(mA)	1.5	1.5	1.5	1.5
Pin/Package	10MSOP-PowerPAD	10MSOP-PowerPAD	10MSOP-PowerPAD	10MSOP-PowerPAD
Rating	Catalog	Catalog	Catalog	Catalog
Release Date	14-JUN-2002	14-JUN-2002	17-MAY-2004	17-MAY-2004
	Samples	Samples	Samples	Samples
	Inventory	Inventory	Inventory	Inventory

Product Information

Features

Operating Input Voltage 2.25 V to 5.5 V
Output Voltage as Low as 0.7 V
1% Internal 0.7 V Reference
Predictive Gate Drive™ N-Channel MOSFET Drivers for Higher Efficiency
Externally Adjustable Soft-Start and Overcurrent Limit
Fixed-Frequency Voltage-Mode Control
- TPS40007, 300 kHz
- TPS40009, 600 kHz
Source/Sink with V_OUT Prebias
10-Lead MSOP PowerPad™ Package for Higher Performance
Thermal Shutdown
Internal Boostrap Diode
APPLICATIONS
- Networking Equipment
- Telecom Equipment
- Base Stations
- Servers
- DSP Power
- Power Modules

PowerPAD and Predictive Gate Drive are trademarks of Texas Instruments Incorporated.

Description

The TPS4000x are controllers for low-voltage, non-isolated synchronous buck regulators. These controllers drive an N-channel MOSFET for the primary buck switch, and an N-channel MOSFET for the synchronous rectifier switch, thereby achieving very high-efficiency power conversion. In addition, the device controls the delays from main switch off to rectifier turn-on and from rectifier turn-off to main switch turn-on in such a way as to minimize diode losses (both conduction and recovery) in the synchronous rectifier with TI’s proprietary Predictive Gate Drive™ technology. The reduction in these losses is significant and increases efficiency. For a given converter power level, smaller FETs can be used, or heat sinking can be reduced or even eliminated.

The current-limit threshold is adjustable with a single resistor connected to the device. The TPS4000x controllers implement a closed-loop soft start function. Startup ramp time is set by a single external capacitor connected to the SS/SD pin. The SS/SD pin is also used for shutdown.

These Alternative Products:

TPS51116: DDR1, DDR2, DDR3 Switcher and...
TPS40007: Low Input (2.25V-5.5V) 300 kHz...
TPS40002: Low Input (2.25V-5.5V) 600 kH...

These Complementary Products:

LP2985-33: Single Output LDO, 150mA, Fixe...
TPS3808G33: Low Quiescent Current, Program...
TL431: Adjustable Precision Shunt Reg...
More Complementary Products

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Pricing/Packaging/CAD Design Tools/Samples
			Price	Packaging			CAD Design Tools	Samples
Device	Status	Temp (^oC)	Budget Price ($US) \| QTY	Industry Standard (TI Pkg) \| Pins	Top Side Marking	Standard Pack Quantity \| Package Carrier	Symbols	Samples
TPS40009DGQ	ACTIVE	-40 to 85	1.50 \| 100u	MSOP-PowerPAD (DGQ) \| 10	View	80 \| TUBE	Request Free Samples
TPS40009DGQG4	ACTIVE	-40 to 85	1.50 \| 100u	MSOP-PowerPAD (DGQ) \| 10	View	80 \| TUBE	Request Free Samples
TPS40009DGQR	ACTIVE	-40 to 85	1.50 \| 100u	MSOP-PowerPAD (DGQ) \| 10	View	2500 \| LARGE T&R	Purchase Samples
TPS40009DGQRG4	ACTIVE	-40 to 85	1.50 \| 100u	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
	TI Inventory Status			Reported Distributor Inventory
TPS40009DGQ	As of 7:54 AM GMT, 6 Aug 2008			As of 7:54 AM GMT, 6 Aug 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 2 Sep	4 Weeks	Americas	Arrow	68
					Avnet	138
					DigiKey	731
					Mouser Electronics	>1k
					Newark	226
				Asia	WPI	115
				Europe	Arrow Southern Europe	>1k
				Europe	Farnell	44
TPS40009DGQG4	As of 7:54 AM GMT, 6 Aug 2008			As of 7:54 AM GMT, 6 Aug 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 2 Sep	4 Weeks	Americas	Avnet	766
	0*		4 Weeks	Europe	Farnell	103
TPS40009DGQR	As of 7:54 AM GMT, 6 Aug 2008			As of 7:54 AM GMT, 6 Aug 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 30 Sep	8 Weeks	Americas	Avnet	>1k
TPS40009DGQRG4	As of 7:54 AM GMT, 6 Aug 2008			As of 7:54 AM GMT, 6 Aug 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 30 Sep	8 Weeks	Americas	Avnet	>1k
				Americas	Mouser Electronics	>1k
				Asia	WPI	>1k

* 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
TPS40009DGQ	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS40009DGQG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS40009DGQR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS40009DGQRG4	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 INPUT BUCK CONTROLLER (Rev. B) (tps40009.pdf, 804 KB)
08 Feb 2005 Download

Application Notes

View Application Notes for DC/DC Controllers (External Switch)

User Guides

Using the TPS40009EVM-001 (sluu189.pdf, 336 KB)
03 Mar 2004 Download

View User Guides for DC/DC Controllers (External Switch)

More Literature

2003 Power Seminar - Under the Hood of Low-Voltage DC/DC Converters (slup206.pdf, 420 KB)
14 Jul 2003 Download

Tools & Software

*Required

View RoHS Compliant Devices

TPS40009, Status:ACTIVE
Low Input (2.25V-5.5V) 600 kHz Frequency, Synchronous Buck Controller, Source/ Sink, Prebias Operati

Enter your design parameters below to design now with SwitcherPro™

Input
		Min	Max
*	Vin Min:	2.25 V	5.5 V
*	Vin Max:	2.25 V	5.5 V

Output
		Min	Max
*	Vout:	0.7 V	4 V
*	Iout Max:	0.0 A	15 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
TPS40007EVM-001 Evaluation Module	TPS40007EVM-001	Texas Instruments	Development Boards/EVMs
TPS40009EVM-001 Evaluation Module	TPS40009EVM-001	Texas Instruments	Development Boards/EVMs
SwitcherPro(TM) Online Design Creator and Management Software	SWITCHERPRO	Texas Instruments	Application Software
TPS40K Loop Stability Tool (Rev. A) (slvc165a.zip, 204 KB ) 27 Jun 2008 zip

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Alternative Products - Are similar to TPS40009
Customers Who Evaluated This Product Also Evaluated...
Part #	Name	Comments
TPS51116	DDR1, DDR2, DDR3 Switcher and LDO	TI customers also evaluated this product.
TPS40007	Low Input (2.25V-5.5V) 300 kHz Frequency, Synchronous Buck Controller, Source/ Sink, Prebias Operati	TI customers also evaluated this product.
TPS40002	Low Input (2.25V-5.5V) 600 kHz Frequency, Synchronous Buck Controller, Source Only	TI customers also evaluated this product.

Complementary Products - Can be used with TPS40009
Customers Who Evaluated This Product Also Evaluated...
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LP2985-33	Single Output LDO, 150mA, Fixed(3.3V), 1.5% Tolerance, Low Quiescent Current, Low Noise	LINEAR REGULATORS-SINGLE CHANNEL LDO	TI customers also evaluated this product.
TPS3808G33	Low Quiescent Current, Programmable-Delay Supervisory Circuit	POWER MANAGEMENT-SUPERVISORY CIRCUITS(VOLTAGE SUPERVISORS)	TI customers also evaluated this product.
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TPS74801	Single Output LDO, 1.5A, Adj. (0.8 to 3.6V), Programmable Soft-Start	LINEAR REGULATORS-SINGLE CHANNEL LDO	TI customers also evaluated this product.
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TPS73701	Single Output LDO, 1A, Adj. (1.2 to 5.0V), Reverse Current Protection	LINEAR REGULATORS-SINGLE CHANNEL LDO	TI customers also evaluated this product.
TPS62110	Adjustable, 1.5-A, 17-V Vin Step-Down Converter in QFN-16	DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS	TI customers also evaluated this product.
TPS62410	2.25MHZ 2x800mA Dual Step-Down Converter with 1-Wire Interface in QFN	DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS	TI customers also evaluated this product.
TPS3808G01	Low Quiescent Current, Programmable-Delay Supervisory Circuit	POWER MANAGEMENT-SUPERVISORY CIRCUITS(VOLTAGE SUPERVISORS)	TI customers also evaluated this product.
TPS3808G09	Low Quiescent Current, Programmable-Delay Supervisory Circuit	POWER MANAGEMENT-SUPERVISORY CIRCUITS(VOLTAGE SUPERVISORS)	TI customers also evaluated this product.

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