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TPS65121 Status: ACTIVE

5V/20mA(I/O), 4-CH high-accuracy Multi-Converter w/ 1.8V LDO for LCD Bias, 16 QFN

      
         
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Datasheet

Download - PDF Icon
  • Single-Inductor Quadruple-Output TFT LCD Power Supply (Rev. A) (tps65121.pdf, 1182 KB)
    28 Mar 2005 Download

 TPS65120 TPS65121TPS65123 TPS65124 
Vin(Min)(V)2.5  2.5  2.5  2.5  
Vin(Max)(V)5.5  5.5  5.5  5.5  
# of Regulated Outputs4  4  4  4  
LDO1  1  1  1  
DC/DC Converter3  3  3  3  
Pin/Package16QFN  16QFN  16QFN  16QFN  
Operating Temp Range(Celsius)-40 to 85  -40 to 85  -40 to 85  -40 to 85  
Switching Frequency(Max)(kHz)4000  4000  4000  4000  
Vout(Min)(V)3  3  3  3  
Vout(Max)(V)5.6  5.6  5.6  5.6  
Regulated Outputs(#)4  4  4  4  
RatingCatalog  Catalog  Catalog  Catalog  
FunctionDisplay Bias  Display Bias  Display Bias  Display Bias  
TopologyBoost, Inverter  Boost, Inverter  Boost, Inverter  Boost, Inverter  
Duty Cycle(Max)(%)100  100  100  100  
Iq(Typ)(mA)0.181  0.181  0.181  0.181  
 SamplesSamplesSamplesSamples
 InventoryInventoryInventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • TPS65120: 5V/20mA(I/O), 4-CH high-accuracy Multi-Converter w/ 3.3V LDO for LCD Bias, 16 QFN
  • TPS65100: Triple Output TFT LCD Supply w/VCOM Buffer
  • TPS65141: 5V/1.6A(I/O), 4-CH Multi-Converter w/ LDO controller, & Power Good Pin for LCD Bias, 24 QFN/TSSOP
  • TPS62200: Adjustable, 300-mA, 95% Efficient Step-Down Converter in SOT-23
  • TPS61042: 30-V, 500-mA Switch Boost Converter in QFN-8 for White LED Applications
  • TPS3803-01: Single Voltage Detector

More Related Products

Product Information

Features

  • Main Output, VMAIN
    • Adjustable Voltage, 3.0 V to 5.6 V/25 mA
    • Post-Regulated for Low Ripple (5mVPP)
    • ±0.8% Typical Accuracy
    • Efficiency up to 83%
  • Positive Output, VGH
    • Adjustable Voltage up to 20 V/2 mA
    • ±3% Typical Accuracy
  • Negative Output, VGL
    • Adjustable Voltage down to -18 V/2 mA
    • ±3% Typical Accuracy
  • Auxiliary 1.8 V/3.3 V Linear Regulator
  • Automatic or Programmable Power Sequencing
  • Complete 1 mm Component Profile Solution
  • 2.5 V to 5.5 V Input Voltage Range
  • Output Short Circuit Protected
  • 16-Pin QFN Package (3 × 3 × 0,9 mm)
  • APPLICATIONS
    • Small Form Factor a-Si and LTPS TFT LCD
    • Cell Phones, Smart Phones
    • PDAs, Pocket PCs
    • Portable DVD
    • Digital-Still Cameras, Camcorders
    • Handheld Instruments
    • Portable GPS
    • Car Navigation Systems

Description

The TPS6512x DC-DC converter supplies all three voltages required by amorphous-silicon (a-Si) and low-temperature poly-silicon (LTPS) TFT-LCD displays. The compact layout of the TPS6512x uses a single inductor to generate independently-regulated positive and negative outputs. A free-running variable peak current PWM control scheme time-multiplexes the inductor between outputs. This control architecture operates at a pseudo-fixed-frequency to provide fast response to line and load transients while maintaining a relatively constant switching frequency and high efficiency over a wide range of input and output voltages. Due to the high switching frequency capability of the device, inexpensive and ultra-thin 8.2 or 10 µH inductors can be used.

The main output, VMAIN, is post-regulated to provide a low-ripple source drive voltage for the LCD display. The auxiliary outputs generate a boosted output voltage, VGH, up to 20 V, and a negative output voltage, VGL, down to -18 V for the LCD gate drive. The device has internal current limiting for high reliability under fault conditions. Additionally, the device offers a fixed output linear regulator for the LCD logic circuitry.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsSamples
TPS65121RGTRACTIVE-40 to 851.70 | 100uQFN (RGT) | 16 View 3000 | LARGE T&R Download CAD Format for this Symbol
TPS65121RGTRG4ACTIVE-40 to 851.70 | 100uQFN (RGT) | 16 View 3000 | LARGE T&R Download CAD Format for this Symbol
TPS65121RGTTACTIVE-40 to 851.90 | 100uQFN (RGT) | 16 View 250 | SMALL T&R Download CAD Format for this SymbolPurchase Samples
TPS65121RGTTG4ACTIVE-40 to 851.90 | 100uQFN (RGT) | 16 View 250 | SMALL T&R Download CAD Format for this SymbolPurchase 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

  TI Inventory Status Reported Distributor Inventory
TPS65121RGTRAs of 8:04 AM GMT, 15 Oct 2008As of 8:04 AM GMT, 15 Oct 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 >10k* >10k | 4 Dec 6 Weeks AmericasDigiKey >1k
  AsiaWPI >1k
TPS65121RGTRG4As of 8:04 AM GMT, 15 Oct 2008As of 8:04 AM GMT, 15 Oct 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 >10k* >10k | 4 Dec 6 Weeks AsiaWPI >1k
TPS65121RGTTAs of 8:04 AM GMT, 15 Oct 2008As of 8:04 AM GMT, 15 Oct 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 6000* >10k | 26 Nov 6 Weeks AmericasNewark 250
  Rochester Electronics 750
TPS65121RGTTG4As of 8:04 AM GMT, 15 Oct 2008As of 8:04 AM GMT, 15 Oct 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 6000* >10k | 26 Nov 6 Weeks None Reported
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* 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 ContentDPPM / MTBF / FIT Rate
DeviceEco Plan* Lead / Ball FinishMSL Rating / Peak ReflowDetailsDetails
TPS65121RGTR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TPS65121RGTRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TPS65121RGTT RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TPS65121RGTTG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView

* 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

  • Single-Inductor Quadruple-Output TFT LCD Power Supply (Rev. A) (tps65121.pdf, 1182 KB)
    28 Mar 2005 Download

Tools & Software

NamePart # Company Tool / Software Type
TPS65120 Evaluation ModuleTPS65120EVM-076Texas InstrumentsDevelopment Boards/EVMs
TPS65124 Evaluation ModuleTPS65124EVM-076Texas InstrumentsDevelopment Boards/EVMs

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