TPS61140 Status: ACTIVE

Dual, 2x 27V, 700mA Switch, 1.2MHz Boost Converter with Single Inductor White LED and OLED Driver

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Datasheet

Dual Output Boost Regulator Using SIngle Inductor (Rev. B) (PDF 907 KB)
22 Mar 2007

	TPS61140	TPS61141
Topology	Boost	Boost
Type	Inductive	Inductive
Vin(Min)(V)	3	3
Vin(Max)(V)	6	6
Switch Current Limit(Typ)(A)	0.7	0.7
Output Voltage(Max)(V)	27	27
Switching Frequency(Max)(kHz)	1200	1200
LED(#)	1 OLED + 4	1 OLED + 4
LED Configuration	2x Series	2x Series
Over-Voltage Protection(Min)(V)	28	28
Peak Efficiency(%)	85	85
Iq(Typ)(mA)	0.125	0.125
Operating Temp Range(Celsius)	-40 to 85	-40 to 85
Pin/Package	10SON	10SON
Iout(Max)(A)	0.023	0.023
Regulated Outputs(#)	2	2
	Samples	Samples
	Inventory	Inventory

Customers Who Evaluated This Product Also Evaluated

TPS61080: 27V, 500mA switch, 1.2MHz Boost Converter with integrated power diode
TPS61150: Dual, 2x 27V, 700mA Switch, 1.2MHz Boost Converter with Single Inductor White LED driver (up to 2x6)
TPS61161A: White LED Driver with PWM Brightness Control in 2mm x 2mm Package. Up to 10 LEDs in Series
TPS61170: 1.2A Switch, High Voltage Boost Converter in 2x2mm QFN Package
TPS61073: Adjustable, 600-mA Switch, 90% Efficient PFM/PWM Boost Converter in ThinSOT-23
TPS61121: 3.3-V 95% Efficient Boost Converter with 1.5-V 200-mA LDO for 1-Cell LiIon or Dual-Cell Applications

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Product Information

Features

2.5-V to 6-V Input Voltage Range
Two Outputs Each up to 27 V
0.7-A Integrated Switch
Built-In Power Diode
1.2-MHz PWM for WLED Driver
PFM for OLED Supply
Individually Programmable Output
Input to Output Isolation
Short-Circuit Protection
Built-In Soft Start
Overvoltage Protection
Up to 82% Efficiency
Up to 30 kHz PWM Dimming Frequency
Available in a 10 Pin, 3 × 3 mm QFN Package
APPLICATIONS
- Clamshell Phone With OLED/LCD Screen

Description

The TPS61140/1 is a dual output boost converter IC. It is intended to be configured as a highly integrated power solution providing regulated voltage and current output with one boost converter. This device is ideal for driving the OLED sub display and WLED backlight for the LCD main display in clam shell phones. The voltage and current can be individually programmed through external resistors. There is a dedicated selection pin for each output, so the two outputs can be turned on separately or simultaneously. When only the voltage output is enabled, the boost converter is controlled by pulse frequency modulation (PFM) in order to achieve high efficiency over a wide load range. If the current output is selected, the device adopts a 1.

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	Samples
TPS61140DRCR	ACTIVE	-40 to 85	1.25 \| 1ku	SON (DRC) \| 10	View	3000 \| LARGE T&R
TPS61140DRCRG4	ACTIVE	-40 to 85	1.25 \| 1ku	SON (DRC) \| 10	View	3000 \| LARGE T&R
TPS61140DRCT	ACTIVE	-40 to 85	1.40 \| 1ku	SON (DRC) \| 10	View	250 \| SMALL T&R
TPS61140DRCTG4	ACTIVE	-40 to 85	1.40 \| 1ku	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

Reported Distributor Inventory as of 10:09 AM GMT, 22 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 16 WeeksTPS61140DRCR
Asia	WPI	>1k
Worldwide	DigiKey	>1k
Worldwide	Mouser Electronics	>1k
TI Lead Time*: 16 WeeksTPS61140DRCRG4
Worldwide	DigiKey	Available
TI Lead Time*: 16 WeeksTPS61140DRCT
Americas	Newark	250
Americas	Rochester Electronics	500
Asia	Farnell Asia	250
Worldwide	DigiKey	412
Worldwide	Mouser Electronics	244
TI Lead Time*: 16 WeeksTPS61140DRCTG4
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
TPS61140DRCR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TPS61140DRCRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TPS61140DRCT	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TPS61140DRCTG4	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 TPS61140

Datasheet

Dual Output Boost Regulator Using SIngle Inductor (Rev. B) (PDF, 907 KB)
22 Mar 2007

Application Notes

Performing Accurate PFM Mode Efficiency Measurements (HTM, 8 KB) 3731 views
18 Apr 2006 Read Abstract
Clamshell Phone w/OLED/LCD Screen Using the TPS61140 Dial Output Boost Regulator (HTM, 8 KB) 573 views
06 Jul 2006 Read Abstract
Minimizing Ringing at the Switch Node of a Boost Converter (HTM, 8 KB) 6266 views
15 Sep 2006 Read Abstract
Optimizing Transient Response of Internally Compensated DC-DC Converters (HTM, 8 KB) 4288 views
28 Jan 2008 Read Abstract
Extending Soft Start Time in TPS6107x Family of Boost (HTM, 8 KB) 2686 views
07 Aug 2008 Read Abstract

View Application Notes for White LED Drivers

User Guides

TPS61140EVM-157 (PDF, 195 KB) 397 views
15 Mar 2006

More Literature

TPS61140_NanoEVM_OV (PDF, 129 KB) 175 views
29 Jan 2007
TPS61140_NanoEVM_ Schematic (PDF, 45 KB) 194 views
13 Feb 2007

Tools & Software

Name	Part #	Company	Tool / Software Type
TPS61140EVM Evaluation Module	TPS61140EVM-157	Texas Instruments	Development Boards/EVMs
TPS6114xVM Gerber Files(ZIP 97 KB ) 19 views 08 Oct 2007

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TPS61122	3.6-V 95% Efficient Boost Converter with 3.3-V 200-mA LDO for 1-Cell LiIon or Dual-Cell Applications	DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-UP REGULATORS	TI customers also evaluated this product.

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TPS61140 Status: ACTIVE

Dual, 2x 27V, 700mA Switch, 1.2MHz Boost Converter with Single Inductor White LED and OLED Driver

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