TPS5124 Status: ACTIVE

TPS5124 Dual Channel Synchronous Step-Down PWM Controller

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Datasheet

TPS5124 Dual Channel Synchronous Step-Down PWM Controller (PDF 486 KB)
10 Jul 2003

	TPS51020	TPS5120	TPS51221	TPS51222	TPS5124
Topology	Buck	Buck	Buck	Buck	Buck
Vin(Min)(V)	4.5	4.5	4.5	4.5	4.5
Vin(Max)(V)	28	28	28	32	15
Vout(Min)(V)	0.9	0.9	1	1	0.9
Vout(Max)(V)	24	26	12	12	12
Regulated Outputs(#)	2	2	2	2	2
Iout(Max)(A)	20	20	20	20	20
Switching Frequency(Max)(kHz)	450	500	1000	1000	500
Iq(Typ)(mA)	1.4	1.1	1.3		1.1
Pin/Package	30TSSOP	30TSSOP	32QFN	32QFN	30TSSOP
Thermal Shutdown	Yes	Yes	Yes	Yes	No
Vout2(Min)(V)	0.9	0.9	1	1	0.9
Vout2(Max)(V)	24	26	12	12	12
Iout2(A)	20	15	20	20	20
Rating	Catalog	Catalog	Catalog	Catalog	Catalog
Duty Cycle(Max)(%)	88	80	99	99	80
	Samples	Samples	Samples	Samples	Samples
	Inventory	Inventory	Inventory	Inventory	Inventory

Customers Who Evaluated This Product Also Evaluated

TPS51124: Dual, Synchronous Step Down Controller for Low Voltage System Power
TPS51117: 1.8V to 28V Input Sync. Step Down Controller with DCAP™ Mode, Optimized for Light Load Efficiency
TPS51020: Dual, DDR selectable, Synchronous buck controller
TPS54331: 3A, 28V Input, 570 kHz Step Down SWIFT™ DC/DC Converter with Eco-mode ™
TPS62420: Dual, Adjustable, 600mA and 1000mA, 2.25MHz Step-Down Converter with 1-Wire Interface in QFN
TPS63700: Adjustable, -15V Output Inverting DC/DC Converter in 3x3 QFN

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Product Information

Features

High Efficiency – No Current Sense Resistor Required, R_DS(on) Overcurrent Detection with Temperature Compensation
Adjustable Output Voltage Down to 0.9 V
Voltage-Mode PWM Control: Maximum 500-kHz Operation
180° Out-of-Phase Control
Individual Standby and Soft-Start for Each Channel - Easy Power Sequencing
Overvoltage and Undervoltage Protection
Built-In Boot-Strap Diode
Built-In 5-V Linear Regulator
Accurate ± 1% 0.85-V Reference
APPLICATIONS
- Consumer Game Systems
- DSP Applications
- Digital Set-Top Box
- VGA and Sound Cards

Description

The TPS5124 is dual independent high efficiency synchronous step-down controller. It supports a low-voltage/high-current power supply applications that use either a 5-V or 12-V bus voltage. Since both controllers of the TPS5124 operate 180 degree out-of-phase, the input current ripple is minimized resulting in a smaller input capacitance and reduced power supply cost.

The current protection circuit detects the drain-to-source voltage drop across the high-side and low-side power MOSFET while it is conducting. Also, the current protection circuit has a temperature coefficient to compensate for the R_DS(on) variation of the MOSFET. This resistor-less current protection and built-in boost diode simplify the system design and reduces the external parts count.

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	Footprints	Samples
TPS5124DBT	ACTIVE	-40 to 85	2.20 \| 1ku	TSSOP (DBT) \| 30	View	60 \| TUBE
TPS5124DBTG4	ACTIVE	-40 to 85	2.20 \| 1ku	TSSOP (DBT) \| 30	View	60 \| TUBE
TPS5124DBTR	ACTIVE	-40 to 85	2.00 \| 1ku	TSSOP (DBT) \| 30	View	2000 \| LARGE T&R	Purchase Samples
TPS5124DBTRG4	ACTIVE	-40 to 85	2.00 \| 1ku	TSSOP (DBT) \| 30	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 10:13 AM GMT, 25 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 20 WeeksTPS5124DBT
Americas	Avnet	>1k
	Newark	100
	Rochester Electronics	60
Asia	Farnell Asia	100
Asia	WPI	84
Europe	Avnet-SILICA	100
Worldwide	DigiKey	530
Worldwide	Mouser Electronics	30
TI Lead Time*: 20 WeeksTPS5124DBTG4
Americas	Avnet	60
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksTPS5124DBTR
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksTPS5124DBTRG4
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
TPS5124DBT	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TPS5124DBTG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TPS5124DBTR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TPS5124DBTRG4	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 TPS5124

Datasheet

TPS5124 Dual Channel Synchronous Step-Down PWM Controller (PDF, 486 KB)
10 Jul 2003

User Guides

Using the TPS5124 (PDF, 676 KB) 1008 views
13 Jan 2004

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

More Literature

Reference Design Cookbook 2 - Power Management (PDF, 3733 KB) 18874 views
27 Feb 2006

Tools & Software

Name	Part #	Company	Tool / Software Type
Dual Synchronous Buck Controller Evaluation Module	TPS5124EVM	Texas Instruments	Development Boards/EVMs

Customers Who Evaluated This Product Also Evaluated...
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TPS51117	1.8V to 28V Input Sync. Step Down Controller with DCAP™ Mode, Optimized for Light Load Efficiency	NON-ISOLATED SWITCHING DC/DC REGULATORS-DC/DC CONTROLLERS (EXTERNAL SWITCH)	TI customers also evaluated this product.
TPS51020	Dual, DDR selectable, Synchronous buck controller	NON-ISOLATED SWITCHING DC/DC REGULATORS-DC/DC CONTROLLERS (EXTERNAL SWITCH)	TI customers also evaluated this product.
TPS5120	Dual Output, Two-Phase Synchronous Buck Controller with Wide Input Voltage Range	NON-ISOLATED SWITCHING DC/DC REGULATORS-DC/DC CONTROLLERS (EXTERNAL SWITCH)	TI customers also evaluated this product.
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TPS51221	Fixed Frequency 99% Duty Cycle Peak Current Mode Notebook System Power Dual Controller	NON-ISOLATED SWITCHING DC/DC REGULATORS-DC/DC CONTROLLERS (EXTERNAL SWITCH)	TI customers also evaluated this product.
TL1451A	Dual Channel Controller with Wide Input Voltage Range	NON-ISOLATED SWITCHING DC/DC REGULATORS-DC/DC CONTROLLERS (EXTERNAL SWITCH)	TI customers also evaluated this product.
TPS54331	3A, 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.
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TPS63700	Adjustable, -15V Output Inverting DC/DC Converter in 3x3 QFN	DC/DC CONVERTERS (INTEGRATED SWITCH)-INVERTING REGULATORS	TI customers also evaluated this product.
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TPS5124 Status: ACTIVE

TPS5124 Dual Channel Synchronous Step-Down PWM Controller

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