TPS2051B Status: ACTIVE

Single, Current-Limited, Power-Distribution Switch

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Datasheet

Current-Limited, Power-Distribution Switches (Rev. J) (PDF 1769 KB)
02 Dec 2008

	TPS2051B	TPS2052B	TPS2053B
Vin(Min)(V)	2.7	2.7	2.7
Vin(Max)(V)	5.5	5.5	5.5
Current Limit(A)	1	1	1
rDS(on) per FET(Typ)(mOhms)	70	70	70
Pin/Package	5SOT-23, 8MSOP-PowerPAD, 8SOIC	8MSOP-PowerPAD, 8SOIC, 8SON	16SOIC
Operating Temp Range(Celsius)	-40 to 85	-40 to 85	-40 to 85
Continuous Current(Max)(A)	0.5	0.5	0.5
Number of Switches	1	2	3
Enable	Active High	Active High	Active High
Rating	Catalog	Catalog	Catalog
	Samples	Samples	Samples
	Inventory	Inventory	Inventory

Other qualified versions of TPS2051B

Version	Part Number	Definition
Automotive	TPS2051B-Q1	Q100 devices qualified for high-reliability automotive applications targeting zero defects

Customers Who Evaluated This Product Also Evaluated

TPS2041B: Single-Channel Current-Limited Power Distribution Switch
TL431A: Adjustable Precision Shunt Regulator
TPS54231: 2A, 28V Input, 570 kHz Step Down SWIFT™ DC/DC Converter with Eco-Mode ™
TLV1117-33: Single Output LDO, 800mA, Fixed(3.3), Internal Current limit, Thermal Overload Protection

Product Information

Features

70-mΩ High-SideMOSFET
500-mA Continuous Current
Thermal and Short-Circuit Protection
Accurate Current Limit
(0.75 A min, 1.25 A max)
Operating Range: 2.7 V to 5.5 V
0.6-ms Typical Rise Time
Undervoltage Lockout
Deglitched Fault Report (OC)
No OC Glitch During Power Up
Maximum Standby Supply Current:
1-µA (Single, Dual) or 2-µA (Triple, Quad)
Ambient Temperature Range: -40°C to 85°C
UL Recognized, File Number E169910
Additional UL Recognition for TPS2042B and TPS2052B for Ganged Configuration
APPLICATIONS
- Heavy Capacitive Loads
- Short-Circuit Protections

Description

The TPS204xB/TPS205xB power-distribution switches areintended for applications where heavy capacitive loads and short circuits are likely to be encountered. These devices incorporates 70-mΩ N-channel MOSFET power switches for power-distribution systems that require multiple power switches in a single package. Each switch is controlled by a logic enable input. Gate drive is provided by an internal charge pump designed to control the power-switch rise times and fall times to minimize current surges during switching. The charge pump requires no external components and allows operation from supplies as low as 2.7 V.

When the output load exceeds the current-limit threshold or a short is present, the device limits the output current to a safe level by switching into a constant-current mode, pulling the overcurrent (OCx) logic output low. When continuous heavy overloads and short-circuits increase the power dissipation in the switch, causing the junction temperature to rise, a thermal protection circuit shuts off the switch to prevent damage. Recovery from a thermal shutdown is automatic once the device has cooled sufficiently. Internal circuitry ensures that the switch remains off until valid input voltage is present. This power-distribution switch is designed to set current limit at 1 A typically.

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	Footprints	Samples
TPS2051BD	ACTIVE	-40 to 85	0.55 \| 1ku	SOIC (D) \| 8	View	75 \| TUBE	Purchase Samples
TPS2051BDBVR	ACTIVE	-40 to 85	0.50 \| 1ku	SOT-23 (DBV) \| 5	View	3000 \| LARGE T&R
TPS2051BDBVRG4	ACTIVE	-40 to 85	0.50 \| 1ku	SOT-23 (DBV) \| 5	View	3000 \| LARGE T&R
TPS2051BDBVT	ACTIVE	-40 to 85	0.55 \| 1ku	SOT-23 (DBV) \| 5	View	250 \| SMALL T&R	Purchase Samples
TPS2051BDBVTG4	ACTIVE	-40 to 85	0.55 \| 1ku	SOT-23 (DBV) \| 5	View	250 \| SMALL T&R	Purchase Samples
TPS2051BDG4	ACTIVE	-40 to 85	0.55 \| 1ku	SOIC (D) \| 8	View	75 \| TUBE	Purchase Samples
TPS2051BDGN	ACTIVE	-40 to 85	0.65 \| 1ku	MSOP-PowerPAD (DGN) \| 8	View	80 \| TUBE		Purchase Samples
TPS2051BDGNG4	ACTIVE	-40 to 85	0.65 \| 1ku	MSOP-PowerPAD (DGN) \| 8	View	80 \| TUBE		Purchase Samples
TPS2051BDGNR	ACTIVE	-40 to 85	0.51 \| 1ku	MSOP-PowerPAD (DGN) \| 8	View	2500 \| LARGE T&R
TPS2051BDGNRG4	ACTIVE	-40 to 85	0.51 \| 1ku	MSOP-PowerPAD (DGN) \| 8	View	2500 \| LARGE T&R
TPS2051BDR	ACTIVE	-40 to 85	0.50 \| 1ku	SOIC (D) \| 8	View	2500 \| LARGE T&R
TPS2051BDRG4	ACTIVE	-40 to 85	0.50 \| 1ku	SOIC (D) \| 8	View	2500 \| LARGE T&R

* 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 10:09 AM GMT, 06 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 20 WeeksTPS2051BD
Americas	Arrow	>1k
	Newark	521
Europe	Arrow Northern Europe	10
	EBV Elektronik	2
Worldwide	Mouser Electronics	516
TI Lead Time*: 20 WeeksTPS2051BDBVR
Asia	WPI	22
TI Lead Time*: 20 WeeksTPS2051BDBVRG4
None Reported View Distributors
TI Lead Time*: 20 WeeksTPS2051BDBVT
Europe	Arrow Southern Europe	500
TI Lead Time*: 20 WeeksTPS2051BDBVTG4
None Reported View Distributors
TI Lead Time*: 20 WeeksTPS2051BDG4
None Reported View Distributors
TI Lead Time*: 20 WeeksTPS2051BDGN
Europe	Arrow Northern Europe	80
TI Lead Time*: 20 WeeksTPS2051BDGNG4
None Reported View Distributors
TI Lead Time*: 20 WeeksTPS2051BDGNR
Americas	Arrow	>1k
Asia	WPI	>1k
TI Lead Time*: 20 WeeksTPS2051BDGNRG4
None Reported View Distributors
TI Lead Time*: 20 WeeksTPS2051BDR
Asia	WPI	615
TI Lead Time*: 20 WeeksTPS2051BDRG4
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
TPS2051BD	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS2051BDBVR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS2051BDBVRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS2051BDBVT	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS2051BDBVTG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS2051BDG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS2051BDGN	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS2051BDGNG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS2051BDGNR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS2051BDGNRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS2051BDR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS2051BDRG4	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 TPS2051B

Tools & Software

Name	Part #	Company	Tool / Software Type
TPS2051B Evaluation Module	TPS2051BEVM-290	Texas Instruments	Development Boards/EVMs
TPS2051B Evaluation Module	TPS2051BEVM-292	Texas Instruments	Development Boards/EVMs
TPS2051B Evaluation Module	TPS2051BEVM	Texas Instruments	Development Boards/EVMs

Customers Who Evaluated This Product Also Evaluated...
Part #	Name	Product Family	Comments
TPS2041B	Single-Channel Current-Limited Power Distribution Switch	PCMCIA AND USB-USB POWER SWITCHES	TI customers also evaluated this product.
TL431A	Adjustable Precision Shunt Regulator	VOLTAGE REFERENCE-SHUNT VOLTAGE REFERENCE	TI customers also evaluated this product.
TPS54231	2A, 28V Input, 570 kHz Step Down SWIFT™ DC/DC Converter with Eco-Mode ™	DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS	TI customers also evaluated this product.
TLV1117-33	Single Output LDO, 800mA, Fixed(3.3), Internal Current limit, Thermal Overload Protection	LINEAR REGULATORS-STANDARD VOLTAGE REGULATORS	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.
BQ24032A	Dual Input Li-Ion Charger with Dynamic Power Path, Output regulated to 4.4V, Vbat 4.2V	BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT	TI customers also evaluated this product.
TPS40055	Wide Input (8V-40V) up to 1MHz Frequency Synchronous Buck Controller, source/sink	NON-ISOLATED SWITCHING DC/DC REGULATORS-DC/DC CONTROLLERS (EXTERNAL SWITCH)	TI customers also evaluated this product.
TPS51125	Dual-Synchronous, Step-Down Controller with Out-of-AudioT Operation and 100-mA LDOs	NON-ISOLATED SWITCHING DC/DC REGULATORS-DC/DC CONTROLLERS (EXTERNAL SWITCH)	TI customers also evaluated this product.
TPS79301	Single Output LDO, 200mA, Adj.(1.2 to 5.5V), High PSRR, Low Noise	LINEAR REGULATORS-SINGLE CHANNEL LDO	TI customers also evaluated this product.
TPS71533	Single Output LDO, 50mA, Fixed(3.3V), High Input Voltage, Low Quiescent Current	LINEAR REGULATORS-SINGLE CHANNEL LDO	TI customers also evaluated this product.
TPS60403	60mA Charge Pump Voltage Inverter with Fixed 250kHz Operation	INDUCTORLESS DC/DC REGULATORS (CHARGE PUMPS)-INVERTING CHARGE PUMP REGULATORS	TI customers also evaluated this product.

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TPS2051B Status: ACTIVE

Single, Current-Limited, Power-Distribution Switch

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