TPS2149 Status: ACTIVE

3.3V LDO + Dual Switch For USB Hubs, Active-Low Enables

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Datasheet

3.3-V LDO and Dual Switch For USB Bus-Powered Hub Power Management (tps2149.pdf, 755 KB)
08 Aug 2001 Download

	TPS2145	TPS2147	TPS2148	TPS2149	TPS2155	TPS2158	TPS2159
Number of FETs	2	2	2	2	2	2	2
Vin(Min)(V)	2.9	2.9	2.9	2.9	2.9	2.9	2.9
Vin(Max)(V)	5.5	5.5	5.5	5.5	5.5	5.5	5.5
Switch Enable	L	L	L	L	H	H	H
rDS(on) per FET, Bus Power(Typ)(mOhms)	340	340	340	340	340	340	340
Application	DSP, PDA	DSP, PDA	USB peripheral	USB 2-port hub	DSP, PDA	USB peripheral	USB 2-port hub
Switch Current Limit, Bus Power(Min)(A)	0.2	0.2	0.2	0.2	0.2	0.2	0.2
LDO Output Range(V)	3.3	3.3	3.3	3.3	3.3	3.3	3.3
LDO Output Current(mA)	200	200	200	200	200	200	200
Ports(Max)	2	2	2	2	2	2	2
Pin/Package	14HTSSOP	10MSOP-PowerPAD	8MSOP-PowerPAD	8MSOP-PowerPAD	14HTSSOP	8MSOP-PowerPAD	8MSOP-PowerPAD
	Samples	Samples	Samples	Samples	Samples	Samples	Samples
	Inventory	Inventory	Inventory	Inventory	Inventory	Inventory	Inventory

Product Information

Features

Complete Power Management Solution for USB Bus-Powered Hubs
3.3-V 200 mA Low-Dropout Voltage Regulator
Two 5-V 340-m (Typ) High-Side MOSFETs
Independent Thermal- and Short-Circuit Protection for LDO and Each Switch
Overcurrent Indicator With Transient Filter
2.9-V to 5.5-V Operating Range
CMOS- and TTL-Compatible Enable Inputs
75-uA (Typ) Supply Current
Available in 8-Pin MSOP (PowerPAD™)
-40°C to 85°C Ambient Temperature Range
APPLICATIONS
- USB Bus-Powered Hubs
  - Keyboards
  - Monitors
  - Hub Boxes

PowerPAD is a trademark of Texas Instruments.

Description

The TPS2149 incorporates two power distribution switches and an LDO in one small package, providing a USB bus-powered hub power management solution that saves up to 60% in board space over typical implementations.

The TPS2149 meets USB 2.0 bus-powered hub requirements. An integrated LDO regulates the 5-V bus power down to 3.3 V for the USB controller. The two MOSFET switches provide power to the downstream ports. With independent enables, the downstream ports remain unpowered until the hub completes enumeration.

Each power-distribution switch is capable of supplying 200 mA of continuous current, and the independent logic enables are compatible with 5-V logic and 3-V logic. The switches and the LDO are designed with controlled rise times and fall times to minimize current surges.

The TPS2149 has active-low enables while the TPS2159 has active-high enables.

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
TPS2149IDGN	ACTIVE	-40 to 85	1.15 \| 100u	MSOP-PowerPAD (DGN) \| 8	View	80 \| TUBE
TPS2149IDGNG4	ACTIVE	-40 to 85	1.15 \| 100u	MSOP-PowerPAD (DGN) \| 8	View	80 \| TUBE
TPS2149IDGNR	ACTIVE	-40 to 85	1.15 \| 100u	MSOP-PowerPAD (DGN) \| 8	View	2500 \| LARGE T&R	Purchase Samples
TPS2149IDGNRG4	ACTIVE	-40 to 85	1.15 \| 100u	MSOP-PowerPAD (DGN) \| 8	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
TPS2149IDGN	As of 8:58 AM GMT, 30 Nov 2008			As of 8:58 AM GMT, 30 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	5040 \| 9 Dec	4 Weeks	Americas	Avnet	113
		9954 \| 7 Jan			DigiKey	2
					Mouser Electronics	45
TPS2149IDGNG4	As of 8:58 AM GMT, 30 Nov 2008			As of 8:58 AM GMT, 30 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	5040 \| 9 Dec	4 Weeks	None Reported View Distributors
	0*	9954 \| 7 Jan	4 Weeks
TPS2149IDGNR	As of 8:58 AM GMT, 30 Nov 2008			As of 8:58 AM GMT, 30 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	6526 \| 2 Jan	6 Weeks	None Reported View Distributors
	0*	>10k \| 26 Feb	6 Weeks
TPS2149IDGNRG4	As of 8:58 AM GMT, 30 Nov 2008			As of 8:58 AM GMT, 30 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	6526 \| 2 Jan	6 Weeks	None Reported View Distributors
	0*	>10k \| 26 Feb	6 Weeks
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
TPS2149IDGN	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS2149IDGNG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS2149IDGNR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS2149IDGNRG4	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

3.3-V LDO and Dual Switch For USB Bus-Powered Hub Power Management (tps2149.pdf, 755 KB)
08 Aug 2001 Download

Application Notes

View Application Notes for USB Power Controllers

User Guides

USB Keyboard/Hub EVM Featuring the TUSB2136 and the TPS2149 (scau003.htm, 8 KB)
27 Dec 2001 Abstract
TUSB2136TPS2149PDK: Getting Started (slll007.pdf, 21 KB)
12 Dec 2001 Download
USB Keyboard/Hub EVM Featuring the TPS2149 3.3-V LDO and Dual Switch (slvu050.pdf, 209 KB)
07 Sep 2001 Download

View User Guides for USB Power Controllers

More Literature

View More Literature for USB Power Controllers

Tools & Software

Name	Part #	Company	Tool / Software Type
TUSB2136-TPS2149 Product Development Kit	TUSB2136TPS2149PDK	Texas Instruments	Development Boards/EVMs

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