TPS65140PWPR ,Q1Features 3 DescriptionThe TPS6514x series offers a compact and small1• 2.7-V to 5.8-V Input Voltage ..
TPS65140RGER ,Q1 SLVS497F–SEPTEMBER 2003–REVISED JUNE 20165 Pin Configuration and FunctionsPWP PackageRGE Package24 ..
TPS65141RGER ,4-CH LCD Bias w/ Fully Int. Pos. Charge Pump, 3.3V LDO Controller & 1.6A Min. Boost Ilim 24-VQFN -40 to 85 SLVS497F–SEPTEMBER 2003–REVISED JUNE 20165 Pin Configuration and FunctionsPWP PackageRGE Package24 ..
TPS65145PWP ,Q1 SLVS497F–SEPTEMBER 2003–REVISED JUNE 20165 Pin Configuration and FunctionsPWP PackageRGE Package24 ..
TPS65145PWPR ,Q1Features 3 DescriptionThe TPS6514x series offers a compact and small1• 2.7-V to 5.8-V Input Voltage ..
TPS65145RGER ,Q1Block Diagram..... 911.8 Glossary. 257.3 Feature Description.... 1012 Mechanical, Packaging, and Or ..
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TSV321RILT ,General purpose low voltage rail to rail input/output op-ampFeatures Pin connections (top view)• Operating range V = 2.5 V to 6 V CC• Rail-to-rail input and o ..
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TSV324IYDT ,General purpose low voltage rail to rail input/output op-ampapplications • Audio driver (headphone driver) • Sensor signal conditioning SO8, MiniSO8, TSSOP8 ..
TSV324IYPT ,General purpose low voltage rail to rail input/output op-amp TSV321, TSV358, TSV324, TSV321A, TSV358A, TSV324A, General purpose input/output rail-to-rail lo ..
TPS65140PWPR-TPS65140RGER
Q1
2.7 V to 5.8 V
Boost
Converter
Negative
Charge Pump
VO1
Up to 15 V / 400 mA
VO2
Down to ±12 V / 20 mA
VO3
Up to 30 V / 20 mA
VO4
3.3 V
TPS6514x
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Design
TPS65140, TPS65141, TPS65145SLVS497F–SEPTEMBER 2003–REVISED JUNE 2016
TPS6514x Triple Output LCD Supply With Linear Regulator and Power Good Features 2.7-Vto 5.8-V Input Voltage Range 1.6-MHz Fixed Switching Frequency 3 Independent Adjustable Outputs Main Outputupto15V With <1% Typical Output
Voltage Accuracy Virtual Synchronous Converter Technology Negative Regulated Charge Pump Driver VO2 Positive Charge Pump Converter VO3 Auxiliary 3.3-V Linear Regulator Controller Internal Soft Start Internal Power-On Sequencing Fault DetectionofAll Outputs (TPS65140 and
TPS65145) No Fault Detection (TPS65141) Thermal Shutdown System Power Good Availablein 24-Pin HTSSOP and 24-Pin VQFN
PowerPAD™ Packages
Applications TFT LCD Displaysfor Notebooks TFT LCD Displaysfor Monitors Portable DVD Players Tablet PCs Car Navigation Systems Industrial Displays
Block Diagram DescriptionThe TPS6514x series offersa compact and small
power supply solutionto provide all three voltages
required by thin film transistor (TFT) LCD displays.
The auxiliary linear regulator controller can be used generatea 3.3-V logic power rail for systems
poweredbya 5-V supply rail only.
The main output VO1isa 1.6-MHz fixed frequency
PWM boost converter providing the source drive
voltagefor the LCD display. The deviceis availablein
two versions with different internal switch current
limitsto allow the useofa smaller external inductor
when lower output poweris required. The TPS65140
and TPS65141 hasa typical switch current limitof
2.3A and the TPS65145 hasa typical switch current
limitof 1.37A.A fully integrated adjustable charge
pump doubler or tripler provides the positive LCD
gate drive voltage. An externally adjustable negative
charge pump provides the negative gate drive
voltage. Dueto the high 1.6-MHz switching frequency the charge pumps, inexpensive and small 220-nF
capacitors canbe used.
Additionally, the TPS6514x series hasa system
power good outputto indicate when all supply rails
are acceptable. For LCD panels poweredby5V the
device hasa linear regulator controller using an
external transistorto providea regulated 3.3-V output
for the digital circuits. For maximum safety, the
TPS65140 and TPS65145 goes into shutdown as
soon as oneof the outputsis outof regulation. The
device can be enabled again by toggling the inputor
the enable (EN) pinto GND. The TPS65141 does not
enter shutdown when oneofits outputsis below its
power good threshold.
Device Information(1)(1) Forall available packages, see the orderable addendumat
the endofthe data sheet.
