TPS62420 Status: ACTIVE

Dual, Adjustable, 600mA and 1000mA, 2.25MHz Step-Down Converter with 1-Wire Interface in QFN

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Datasheet

2.25MHz 600mA/1000mA Dual Step Down Converter in Small 3x3mm2 QFN Pkg (Rev. B) (tps62420.pdf, 1360 KB)
24 Oct 2006 Download

	TPS62400	TPS62401	TPS62402	TPS62403	TPS62410	TPS62420
Iout(Max)(A)	0.4	0.4	0.4	0.4	0.8	0.6
Iout2(Max)(A)	0.6	0.6	0.6	0.6	0.8	1
Vin(Min)(V)	2.5	2.5	2.5	2.5	2.5	2.5
Vin(Max)(V)	6	6	6	6	6	6
Vout(Min)(V)	0.6	1.1	1.2	1.1	0.6	0.6
Vout(Max)(V)	6	1.575	1.8	1.575	6	6
Preset Vout(V)				2.8
Iq(Typ)(mA)	0.032	0.032	0.032	0.032	0.032	0.032
Switching Frequency(Max)(kHz)	2250	2250	2250	2250	2250	2250
Switch Current Limit(Typ)(A)	1	1	1	1	1	1
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
Pin/Package	10SON	10SON	10SON	10SON	10SON	10SON
Rating	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog
Duty Cycle(Max)(%)	100	100	100	100	100	100
Vout1	2.5V- 6V @0.4A (adj output)	1.1V or 1.575V @0.4A (preset output)	1.2Vor 1.8V @0.4A (preset output)	1.1V or 1.575V @0.4A (preset output)
Vout2(V)	2.5V-6V @0.6A (adj output)	2.8 @0.6A (preset output)	3.3V @0.6A (preset output)	2.8V @0.6A (preset output)
	Samples	Samples	Samples	Samples	Samples	Samples
	Inventory	Inventory	Inventory	Inventory	Inventory	Inventory

Customers Who Evaluated This Product Also Evaluated

TPS62260: 2.25MHz 600mA Step-Down Converter in 2x2mm SON/TSOT23 Package
TPS62290: 2.25MHz 1A Step-Down Converter in 2x2mm SON Package
TPS40222: 1.6A, 1.25-MHz Buck Converter in a 3 mm SON Package
TPS65051: 6-channel Power Mgmt IC with 2 DC/DCs, 4 LDOs, in 4x4mm QFN
TL494: PWM Control Circuit
TPS72501: Single Output LDO, 1.0A, Adj.(1.22 to 5.5V), Any cap, Low Input Voltage, Integrated SVS

More Related Products

Product Information

Features

High Efficiency—up to 95%
V_IN Range From 2.5 V to 6 V
2.25 MHz Fixed Frequency Operation
Output Current 600 mA and 1000 mA
Adjustable Output Voltage From 0.6 V to V_IN
EasyScale™ Optional One Pin Serial Interface for Dynamic Output Voltage Adjustment
Power Save Mode at Light Load Currents
180° Out of Phase Operation
Output Voltage Accuracy in PWM Mode ±1%
Typical 32 µA Quiescent Current for both Converters
100% Duty Cycle for Lowest Dropout
Available in a 10-Pin QFN (3×3mm)
APPLICATIONS
- Cell Phones, Smart-phones
- PDAs, Pocket PCs
- OMAP™ and Low Power DSP Supply
- Portable Media Players
- Digital Radio
- Digital Cameras

EasyScale, OMAP, PowerPAD are trademarks of Texas Instruments.

Description

The TPS62420 device is a synchronous dual step-down DC-DC converter optimized for battery powered portable applications. It provides two independent output voltage rails powered by 1-cell Li-Ion or 3-cell NiMH/NiCD batteries. The device is also suitable to operate from a standard 3.3V or 5V voltage rail.

With an input voltage range of 2.5V to 6V, the TPS62420 is ideal to power portable applications like smart phones, PDAs, and other portable equipment.

With the EasyScale serial interface the output voltages can be modified during operation. It therefore supports Dynamic Voltage Scaling for low power DSP and processors.

The TPS62420 operates at 2.25MHz fixed switching frequency and enter the Power Save Mode operation at light load currents to maintain high efficiency over the entire load current range. For low noise applications the devices can be forced into fixed frequency PWM mode by pulling the MODE/DATA pin high. In the shutdown mode, the current consumption is reduced to 1.2µA. The device allows the use of small inductors and capacitors to achieve a small solution size.

The TPS62420 is available in a 10-pin leadless package (3×3mm QFN)

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
TPS62420DRCR	ACTIVE	-40 to 85	2.65 \| 100u	SON (DRC) \| 10	View	3000 \| LARGE T&R	Purchase Samples
TPS62420DRCRG4	ACTIVE	-40 to 85	2.65 \| 100u	SON (DRC) \| 10	View	3000 \| LARGE T&R	Purchase Samples
TPS62420DRCT	ACTIVE	-40 to 85	2.95 \| 100u	SON (DRC) \| 10	View	250 \| SMALL T&R
TPS62420DRCTG4	ACTIVE	-40 to 85	2.95 \| 100u	SON (DRC) \| 10	View	250 \| SMALL 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

	TI Inventory Status			Reported Distributor Inventory
TPS62420DRCR	As of 8:04 AM GMT, 15 Oct 2008			As of 8:04 AM GMT, 15 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	8880*	>10k \| 16 Feb	6 Weeks	Americas	Mouser Electronics	>1k
TPS62420DRCRG4	As of 8:04 AM GMT, 15 Oct 2008			As of 8:04 AM GMT, 15 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	8880*	>10k \| 16 Feb	6 Weeks	None Reported View Distributors
TPS62420DRCT	As of 8:04 AM GMT, 15 Oct 2008			As of 8:04 AM GMT, 15 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 15 Jan	6 Weeks	Americas	Mouser Electronics	133
				Americas	Newark	134
				Asia	WPI	210
TPS62420DRCTG4	As of 8:04 AM GMT, 15 Oct 2008			As of 8:04 AM GMT, 15 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 15 Jan	6 Weeks	None Reported View Distributors
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
TPS62420DRCR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TPS62420DRCRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TPS62420DRCT	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TPS62420DRCTG4	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

2.25MHz 600mA/1000mA Dual Step Down Converter in Small 3x3mm2 QFN Pkg (Rev. B) (tps62420.pdf, 1360 KB)
24 Oct 2006 Download

Application Notes

Optimizing Transient Response of Internally Compensated DC-DC Converters (slva289.htm, 8 KB)
28 Jan 2008 Abstract
Performing Accurate PFM Mode Efficiency Measurements (slva236.htm, 8 KB)
18 Apr 2006 Abstract

View Application Notes for Step-Down Regulators

User Guides

TPS62400EVM (slvu178.htm, 8 KB)
19 Jul 2006 Abstract

More Literature

View More Literature for Step-Down Regulators

Tools & Software

Name	Part #	Company	Tool / Software Type
TPS62400 Evaluation Module	TPS62400EVM-167	Texas Instruments	Development Boards/EVMs
TPS62401 Evaluation Module	TPS62401EVM-167	Texas Instruments	Development Boards/EVMs
TPS62420 Evaluation Module	TPS62420EVM-167	Texas Instruments	Development Boards/EVMs
TPS624xx EVM Software	TPS624XXEVM-SW	Texas Instruments	Application Software
TPS624xxVM Gerber Files(slvc132.zip, 101 KB ) 08 Oct 2007 zip

Alternative Products - Are similar to TPS62420
Customers Who Evaluated This Product Also Evaluated...
Part #	Name	Comments
TPS62260	2.25MHz 600mA Step-Down Converter in 2x2mm SON/TSOT23 Package	TI customers also evaluated this product.
TPS62290	2.25MHz 1A Step-Down Converter in 2x2mm SON Package	TI customers also evaluated this product.
TPS40222	1.6A, 1.25-MHz Buck Converter in a 3 mm SON Package	TI customers also evaluated this product.
TPS62400	Dual, Adjustable, 400mA and 600mA, 2.25MHz Step-Down Converter with 1-Wire Interface in QFN	TI customers also evaluated this product.

Complementary Products - Can be used with TPS62420
Customers Who Evaluated This Product Also Evaluated...
Part #	Name	Product Family	Comments
TPS65051	6-channel Power Mgmt IC with 2 DC/DCs, 4 LDOs, in 4x4mm QFN	POWER MANAGEMENT MULTI-CHANNEL IC (PMIC) SOLUTIONS-PMIC SOLUTIONS WITH AND WITHOUT BATTERY CHARGER	TI customers also evaluated this product.
TL494	PWM Control Circuit	AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS	TI customers also evaluated this product.
TPS72501	Single Output LDO, 1.0A, Adj.(1.22 to 5.5V), Any cap, Low Input Voltage, Integrated SVS	LINEAR REGULATORS-SINGLE CHANNEL LDO	TI customers also evaluated this product.
TPS76201	Single Output LDO, 100mA, Adj.(0.7 to 5.5V), Low Quiescent Current, Over Current Limitation	LINEAR REGULATORS-SINGLE CHANNEL LDO	TI customers also evaluated this product.
TPS3103K33	Ultra-Low Supply Current/Supply Voltage Supervisory Circuits	POWER MANAGEMENT-SUPERVISORY CIRCUITS(VOLTAGE SUPERVISORS)	TI customers also evaluated this product.
TPS23750	IEEE 802.3af PD Controller with Integrated DC/DC	POWER OVER ETHERNET/LAN SOLUTIONS-POWERED DEVICES	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.
TPS70402	Dual-output 1A/2A Low Dropout (LDO) with dual enables and SVS for split-voltage systems	LINEAR REGULATORS-DUAL CHANNEL LDO	TI customers also evaluated this product.
TPS76301	Single Output LDO, 150mA, Adj.(1.5 to 6.0V), Low Quiescent Current, Thermal Protection	LINEAR REGULATORS-SINGLE CHANNEL LDO	TI customers also evaluated this product.
TPS2231	ExpressCard Single Power Interface Switch	PCMCIA AND USB-PCMCIA/CARDBUS SWITCH MATRIX	TI customers also evaluated this product.