TPS40190 Status: ACTIVE

Low Pin Count Synchronous Buck DC/DC Controller

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Datasheet

LOW PIN COUNT SYNCHRONOUS BUCK CONTROLLER (Rev. A) (PDF 707 KB)
02 Aug 2005

	TPS40190
Topology	Buck
Vin(Min)(V)	4.5
Vin(Max)(V)	15
Vout(Min)(V)	0.6
Vout(Max)(V)	12.75
Regulated Outputs(#)	1
Iout(Max)(A)	20
Switching Frequency(Max)(kHz)	300
Iq(Typ)(mA)	2.5
Pin/Package	10SON
Thermal Shutdown	No
Rating	Catalog
Duty Cycle(Max)(%)	85
	Samples
	Inventory

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Product Information

Features

Input Operating Voltage Range: 4.5 V to 15 V
Reference 0.591 V ±1%
Voltage Mode Control
Internal 5-V Regulator For Internal Housekeeping, Driver Power and Light External Loads
Selectable Short-Circuit Protection Thresholds
Pre-Bias Ouput Safe
Fixed Switching Frequency of 300 kHz
Internal Soft-Start
Small 3 mm × 3 mm, 10-Pin SON Package
Bootstrapped Drivers for N-Channel MOSFET
Adaptive Anti-Cross Conduction
Internal Bootstrap Diode
1.2-A Drivers for Decreased Switching Loss
APPLICATIONS
- Cable modem CPE
- Digital Set Top Box
- Graphics/Audio Cards
- Entry-level and Mid-Range Servers

Description

The TPS40190 is a cost-optimized synchronous buck controller that operates from 4.5 V to 15 V nominally, and implements a fixed frequency voltage mode power supply. The controller uses an adaptive anti-cross conduction scheme to prevent both the high-side and the rectifier MOSFET to be turned on at the same time, preventing shoot through current in the two MOSFETs.

The controller also provides a short circuit protection threshold that is user selectable between one of three values. The protection level is set with a single external resistor connected from COMP to GND. During start-up, the impedance connected to COMP is sensed, and the information is decoded to select one of the three thresholds. When the controller senses an output short circuit, both MOSFETs are turned off and a timeout period is observed before attempting to restart.

View All Description in Datasheet

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	Samples
TPS40190DRCR	ACTIVE	-40 to 85	1.00 \| 1ku	SON (DRC) \| 10	View	3000 \| LARGE T&R
TPS40190DRCRG4	ACTIVE	-40 to 85	1.00 \| 1ku	SON (DRC) \| 10	View	3000 \| LARGE T&R
TPS40190DRCT	ACTIVE	-40 to 85	1.10 \| 1ku	SON (DRC) \| 10	View	250 \| SMALL T&R	Purchase Samples
TPS40190DRCTG4	ACTIVE	-40 to 85	1.10 \| 1ku	SON (DRC) \| 10	View	250 \| SMALL 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 10:13 AM GMT, 20 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 20 WeeksTPS40190DRCR
None Reported View Distributors
TI Lead Time*: 20 WeeksTPS40190DRCRG4
None Reported View Distributors
TI Lead Time*: 16 WeeksTPS40190DRCT
Europe	Arrow Northern Europe	250
Worldwide	Mouser Electronics	235
TI Lead Time*: 16 WeeksTPS40190DRCTG4
Worldwide	Mouser Electronics	250
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
TPS40190DRCR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TPS40190DRCRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TPS40190DRCT	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TPS40190DRCTG4	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

Most useful technical documents for TPS40190

Datasheet

LOW PIN COUNT SYNCHRONOUS BUCK CONTROLLER (Rev. A) (PDF, 707 KB)
02 Aug 2005

User Guides

Using the TPS40190 (PDF, 167 KB) 1572 views
16 Sep 2005

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

Selection Guides

Power Management Solutions for Xilinx and Altera FPGAs (PDF, 1970 KB) 10918 views
30 Jan 2007

More Literature

TPS40190DR Schematic (PDF, 64 KB) 258 views
15 Feb 2008
TPS40190DRC Test Report (PDF, 498 KB) 176 views
15 Feb 2008
TPS40190DRC Bill of Materials (PDF, 28 KB) 152 views
15 Feb 2008
Reference Design Cookbook 2 - Power Management (PDF, 3733 KB) 18836 views
27 Feb 2006
FPGA Power Reference Designs (PDF, 121 KB) 851 views
22 Jan 2007
2003 Power Seminar - Under the Hood of Low-Voltage DC/DC Converters (PDF, 420 KB) 3068 views
14 Jul 2003
5V/12V input DM6467 (x1) Power Reference Design (PDF, 1689 KB) 578 views
24 Jun 2008
5V/12V input DM6467 (x2) Power Reference Design (PDF, 1686 KB) 496 views
24 Jun 2008

Reference Designs

Description	Part #	Company
6-A Synchronous Buck Converter with Minimal External Components	PMP2942	Texas Instruments

Tools & Software

*Required

Design Now with SwitcherPro™

Enter your design parameters below to design now with SwitcherPro™

Input
		Min	Max
*	Vin Min:	4.5 V	15 V
*	Vin Max:	4.5 V	15 V

Output
		Min	Max
*	Vout:	0.6 V	12.75 V
*	Iout Max:	0.0 A	20 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
12V Input, 1.5V Output, 10A Sync Buck Converter Evaluation Module	TPS40190EVM-001	Texas Instruments	Development Boards/EVMs
SwitcherPro(TM) Online and Desktop Design Creator and Management Software	SWITCHERPRO	Texas Instruments	Application Software
TPS40K Loop Stability Tool (Rev. A)(ZIP 204 KB ) 515 views 27 Jun 2008

Simulation Models

PSpice Model
- TPS40190 PSpice Average and Transient Model (Rev. B) (ZIP, 78 KB) 73 views
  29 Oct 2009
TINA-TI Reference Design
- TPS40190 TINA-TI Transient Reference Design (Rev. B) (TSC, 610 KB) 63 views
  29 Oct 2009
- TPS40190 TINA-TI Average Reference Design (Rev. C) (TSC, 383 KB) 82 views
  27 Jul 2009
TINA-TI Spice Model
- TPS40190 TINA-TI Transient Spice Model (Rev. B) (ZIP, 37 KB) 69 views
  29 Oct 2009
- TPS40190 TINA-TI Average Spice Model (Rev. A) (ZIP, 7 KB) 73 views
  27 Jul 2009

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TPS40190 Status: ACTIVE

Low Pin Count Synchronous Buck DC/DC Controller

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