Wide Input Range Synchronous Buck Controller for Sequencing - TPS40100

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

Datasheet

	TPS40100 BUCK CONTROLLER (tps40100.pdf, 863 KB) 12 May 2005 Download

	TPS40100	TPS40101
Topology	Buck	Buck
Vin(Min)(V)	4.5	4.5
Vin(Max)(V)	18	18
Vout(Min)(V)	0.7	0.69
Vout(Max)(V)	5.5	5.5
Regulated Outputs(#)	1	1
Iout(Max)(A)	20	20
Switching Frequency(Max)(kHz)	600	1000
Iq(Typ)(mA)	1.8	1.8
Pin/Package	24VQFN	24VQFN
Rating	Catalog	Catalog
Release Date	03-JUN-2005	24-OCT-2006
	Samples	Samples
	Inventory	Inventory

Product Information

Features

Operation over 4.5 V to 18 V Input Range
Adjustable Frequency (Between 100 kHz and 600 kHz) Current Feedback Control
Output Voltage Range From 0.7 V to 5.5 V
Simultaneous, Ratiometric and Sequential Startup Sequencing
Adaptive Gate Drive
Remote Sensing (Via Separate GND/PGND)
Internal Gate Drivers for N-channel MOSFETs
Internal 5-V Regulator
24-Pin QFN Package
Thermal Shutdown
Programmable Overcurrent Protection
Power Good Indicator
1%, 690-mV Reference
Output Margining, 3% and 5%
Programmable UVLO (with Programmable Hysteresis)
Frequency Synchronization
APPLICATIONS
- Servers
- Networking Equipment
- Cable Modems and Routers
- XDSL Modems and Routers
- Set-Top Boxes
- Telecommunications Equipment
- Power Supply Modules

Description

The TPS40100 is a mid voltage, wide-input (between 4.5 V and 18 V), synchronous, step-down controller. The TPS40100 offers programmable closed loop soft-start, programmable UVLO (with programmable hysteresis), programmable inductor sensed current limit and can be synchronized to other timebases. The TPS40100 incorporates MOSFET gate drivers for external N-channel high-side and synchronous rectifier (SR) MOSFET. Gate drive logic incorporates adaptive anti-cross conduction circuitry for improved efficiency, reducing both cross conduction and diode conduction in the rectifier MOSFET. The externally programmable current limit provides a hiccup overcurrent recovery characteristic.

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TPS51116: DDR1, DDR2, DDR3 Switcher and...

These Complementary Products:

TPS54310: Low Input Voltage 3A Synchrono...
TPS61040: 28-V, 400-mA Switch Boost Conv...
UCC28600: 8-Pin Quasi Resonant Flyback G...

What's This?

View RoHS Compliant Devices

TPS40100, Status:ACTIVE
Wide Input Range Synchronous Buck Controller for Sequencing

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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
TPS40100RGER	ACTIVE	-40 to 85	2.45 \| 100u	VQFN (RGE) \| 24	View	3000 \| LARGE T&R	Purchase Samples
TPS40100RGERG4	ACTIVE	-40 to 85	2.45 \| 100u	VQFN (RGE) \| 24	View	3000 \| LARGE T&R	Purchase Samples
TPS40100RGET	ACTIVE	-40 to 85	2.70 \| 100u	VQFN (RGE) \| 24	View	250 \| SMALL T&R	Request Free Samples
TPS40100RGETG4	ACTIVE	-40 to 85	2.70 \| 100u	VQFN (RGE) \| 24	View	250 \| SMALL T&R	Request Free 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
TPS40100RGER	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 \| 5 Nov	8 Weeks	None Reported View Distributors
TPS40100RGERG4	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 \| 5 Nov	8 Weeks	None Reported View Distributors
TPS40100RGET	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
	3336*	5489 \| 29 Aug	6 Weeks	Americas	Avnet	500
		>10k \| 15 Oct			DigiKey	153
					Mouser Electronics	243
					Newark	250
TPS40100RGETG4	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
	3336*	5489 \| 29 Aug	6 Weeks	Europe	EBV Elektronik	125
	3336*	>10k \| 15 Oct	6 Weeks

* 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
TPS40100RGER	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TPS40100RGERG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TPS40100RGET	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TPS40100RGETG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	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

TPS40100 BUCK CONTROLLER (tps40100.pdf, 863 KB)
12 May 2005 Download

Application Notes

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

User Guides

Using the TPS40100 (sluu224.pdf, 469 KB)
25 May 2005 Download

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

More Literature

Line Power Podcast (sluc076.wmv, 7000 KB)
19 Sep 2007 wmv

Reference Design Cookbook 2 - Power Management (slub012.pdf, 3733 KB)
27 Feb 2006 Download

Tools & Software

Name	Part #	Company	Tool / Software Type
12V Input, 3.3V Output, 10A Synchronous Buck Controller	TPS40100EVM-001	Texas Instruments	Development Boards/EVMs

Complementary Products - Can be used with TPS40100
Customers Who Evaluated This Product Also Evaluated...
Part #	Name	Product Family	Comments
TPS54310	Low Input Voltage 3A Synchronous Buck Converter with Adjustable Output Voltage	DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS	TI customers also evaluated this product.
TPS61040	28-V, 400-mA Switch Boost Converter in SOT-23 for LCD and White LED Applications	LIGHTING AND DISPLAY SOLUTIONS-WHITE LED DRIVERS	TI customers also evaluated this product.
UCC28600	8-Pin Quasi Resonant Flyback Green Mode Controller	AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS	TI customers also evaluated this product.

Alternative Products - Are similar to TPS40100
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