TPS54355 Status: ACTIVE

4.5V to 20V, 3A Synchronous Step Down SWIFT™ Converter 2.5Vout

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Datasheet

TPS54352/3/4/5/6/7: 4.5-V to 20-V Input, 3-A Output Synchronous PWM Switcher (Rev. A) (PDF 986 KB)
27 Oct 2004

	TPS54352	TPS54353	TPS54354	TPS54355	TPS54356	TPS54357
Iout(Max)(A)	3	3	3	3	3	3
Vin(Min)(V)	4.5	4.5	4.5	4.5	4.5	6.5
Vin(Max)(V)	20	20	20	20	20	20
Vout(Min)(V)	1.2	1.5	1.8	2.5	3.3	5.0
Vout(Max)(V)	1.2	1.5	1.8	2.5	3.3	5.0
Preset Vout(V)	1.2	1.5	1.8	2.5	3.3	5
Iq(Typ)(mA)	9	9	9	9	9	9
Switching Frequency(Max)(kHz)	700	700	700	700	700	700
Switch Current Limit(Typ)(A)	3.3	3.3	3.3	3.3	3.3	3.3
Topology	Buck	Buck	Buck	Buck	Buck	Buck
Operating Temp Range(Celsius)	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85
Pin/Package	16HTSSOP	16HTSSOP	16HTSSOP	16HTSSOP	16HTSSOP	16HTSSOP
Rating	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog
Duty Cycle(Max)(%)	80	80	80	80	80	80
Regulated Outputs(#)	1	1	1	1	1	1
Thermal Shutdown	yes	yes	yes	yes	yes	yes
	Samples	Samples	Samples	Samples	Samples	Samples
	Inventory	Inventory	Inventory	Inventory	Inventory	Inventory

Customers Who Evaluated This Product Also Evaluated

TPS54356: 4.5V to 20, 3A Synchronous Step Down SWIFT™ Converter 3.3 Vout
TPS54352: 4.5V to 20V, 3A Synchronous Step Down SWIFT™ Converter 1.2 Vout
TPS54350: 4.5 to 20V, 3A Synchronous Step Down SWIFT™ Converter
TPS61042: 30-V, 500-mA Switch Boost Converter in QFN-8 for White LED Applications

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Product Information

Features

100 mΩ, 4.5-A Peak MOSFET Switch for High Efficiency at 3-A Continuous Output Current
Uses External Lowside MOSFET or Diode
Fixed Output Versions — 1.2V/1.5V/1.8V/2.5V/3.3V/5.0V
Internally Compensated for Low Parts Count
Synchronizes to External Clock
180° Out of Phase Synchronization
Wide PWM Frequency — Fixed 250 kHz, 500 kHz or Adjustable 250 kHz to 700 kHz
Internal Slow Start
Load Protected by Peak Current Limit and Thermal Shutdown
Adjustable Undervoltage Lockout
16-Pin TSSOP PowerPAD™ Package
APPLICATIONS
- Industrial & Commercial Low Power Systems
- LCD Monitors and TVs
- Computer Peripherals
- Point of Load Regulation for High Performance DSPs, FPGAs, ASICs and Microprocessors

PowerPAD and SWIFT are trademarks of Texas Instruments.

Description

The TPS5435x is a medium output current synchronous buck PWM converter with an integrated high side MOSFET and a gate driver for an optional low side external MOSFET. Features include a high performance voltage error amplifier that enables maximum performance under transient conditions. The TPS5435x has an under-voltage-lockout circuit to prevent start-up until the input voltage reaches a preset value; an internal slow-start circuit to limit in-rush currents; and a power good output to indicate valid output conditions. The synchronization feature is configurable as either an input or an output for easy 180° out of phase synchronization.

The TPS5435x devices are available in a thermally enhanced 16-pin TSSOP (PWP) PowerPAD™ package. TI provides evaluation modules and the SWIFT™ Designer software tool to aid in quickly achieving high-performance power supply designs to meet aggressive equipment development cycles.

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
TPS54355PWP	ACTIVE	-40 to 85	2.55 \| 1ku	HTSSOP (PWP) \| 16	View	90 \| TUBE
TPS54355PWPG4	ACTIVE	-40 to 85	2.55 \| 1ku	HTSSOP (PWP) \| 16	View	90 \| TUBE
TPS54355PWPR	ACTIVE	-40 to 85	2.35 \| 1ku	HTSSOP (PWP) \| 16	View	2000 \| LARGE T&R	Purchase Samples
TPS54355PWPRG4	ACTIVE	-40 to 85	2.35 \| 1ku	HTSSOP (PWP) \| 16	View	2000 \| 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

Reported Distributor Inventory as of 10:08 AM GMT, 08 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 4 WeeksTPS54355PWP
Americas	Arrow	21
Americas	Rochester Electronics	246
Worldwide	DigiKey	94
Worldwide	Mouser Electronics	117
TI Lead Time*: 4 WeeksTPS54355PWPG4
Asia	Farnell Asia	5
Europe	EBV Elektronik	45
Europe	Farnell	5
Worldwide	DigiKey	Available
TI Lead Time*: 4 WeeksTPS54355PWPR
Worldwide	DigiKey	Available
TI Lead Time*: 4 WeeksTPS54355PWPRG4
Worldwide	DigiKey	Available
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
TPS54355PWP	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TPS54355PWPG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TPS54355PWPR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TPS54355PWPRG4	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 TPS54355

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	20 V
*	Vin Max:	4.5 V	20 V

Output
		Min	Max
*	Vout:	2.5 V	2.5 V
*	Iout Max:	0.0 A	3 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
3-A, 4.5 to 20 Vin DC/DC Converter with Fixed 3.3V Output	TPS54356EVM-058	Texas Instruments	Development Boards/EVMs
SwitcherPro(TM) Online and Desktop Design Creator and Management Software	SWITCHERPRO	Texas Instruments	Application Software
Gerber File for TPS5435xEVM(ZIP 157 KB ) 250 views 30 Apr 2004

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TPS54355 Status: ACTIVE

4.5V to 20V, 3A Synchronous Step Down SWIFT™ Converter 2.5Vout

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