TPS61045DRB ,DIGITALLY ADJUSTABLE LCD BOOST CONVERTERFeatures 3 DescriptionThe TPS61045 device is a high-frequency boost1• Input Voltage Range from 1.8 ..
TPS61045DRBR ,28-V, 85% Efficient Boost Converter in QFN-8 for LCD ApplicationsElectrical Characteristics....... 511.2 Trademarks..... 186.7 Typical Characteristics. 611.3 Electr ..
TPS61045DRBR G4 ,28-V, 85% Efficient Boost Converter in QFN-8, Digitally Adjustable 8-SON -40 to 85Block Diagram..... 8Information..... 184 Revision HistoryChanges from Revision B (March 2009) to Re ..
TPS61045DRBRG4 ,28-V, 85% Efficient Boost Converter in QFN-8, Digitally Adjustable 8-SON -40 to 85Maximum Ratings(1)over operating free-air temperature (unless otherwise noted)MIN MAX UNIT(2)Supply ..
TPS61045DRBRG4 ,28-V, 85% Efficient Boost Converter in QFN-8, Digitally Adjustable 8-SON -40 to 85Maximum Ratings . 410.1 Layout Guidelines.... 176.2 ESD Ratings........ 410.2 Layout Example....... ..
TPS61045DRBT ,28-V, 85% Efficient Boost Converter in QFN-8 for LCD ApplicationsFeatures... 17.4 Device Functional Modes.... 102 Applications..... 18 Application and Implementatio ..
TSM221IN ,DUAL CMOS OP-AMPS AND DUAL CMOS COMPARATORELECTRICAL CHARACTERISTICS-+V = 5V, V = 0V, R , C connected to V , T = 25°C (unless otherwise speci ..
TSM221IN ,DUAL CMOS OP-AMPS AND DUAL CMOS COMPARATORELECTRICAL CHARACTERISTICS-+V = 3V, V = 0V, R , C connected to V , T = 25°C (unless otherwise speci ..
TSM2301CX RF , 20V P-Channel MOSFET
TSM2301CXRF , 20V P-Channel MOSFET
TSM2302CX RF , 20V N-Channel MOSFET
TSM2302CX RF , 20V N-Channel MOSFET
TPS61045DRB
DIGITALLY ADJUSTABLE LCD BOOST CONVERTER
1 MW
100 nF
VIN D1
MBR0530
GND
CTRL
PGND
TPS61045
4.7Fm
Cff
22 pF
4.7Hm
2.2 MW 1Fm
16.2 V to 18.9 V/ 10 mA
180 kW = 1.8 V to 6 VINProduct
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TPS61045SLVS440C –JANUARY 2003–REVISED DECEMBER 2014
TPS61045 Digitally Adjustable Boost Converter Features 3 DescriptionThe TPS61045 device isa high-frequency boost Input Voltage Range from 1.8to6V converter with digitally-programmable output voltage• Output Voltageofupto28V Possible and true shutdown. During shutdown, the outputis• Upto 85% Efficiency disconnected from the input by opening the internal
input switch. This allowsa controlled power-up and• Digitally Adjustable Output Voltage Control power-down sequencingof the display. The output• Disconnects Output From Input During Shutdown voltage can be increased or decreasedin digital• Switching Frequencyupto1 MHz stepsby applyinga logic signalto the CTRL pin. The
output voltage range, as well as the output voltage• No Load Quiescent Current40 μA Typical
step size, can be programmed with the feedback• Thermal Shutdown Mode divider network. Witha high switching frequencyof• Shutdown Current 0.1 μA Typical upto1 MHz, the TPS61045 device allows the useof Availablein Small 3-mm× 3-mm VSON Package small external components, and together, with the
small 8-pin VSON package,a minimum system
solution sizeis achieved.
2 Applications LCD Bias Supplyfor Smallto Medium LCD
Device Information(1)Displays• OLED Display Power Supply PDA, Pocket PC, Smart Phones (1) Forall available packages, see the orderable addendumat– Handheld Devices the endofthe data sheet. Cellular Phones
Simplified Schematic
