TPS6734IDR ,Fixed 12-V 120-MA Boost-Converter Supplyblock diagram81V VEN EN CC CCEN7FB170-kHzOscillatorPower Switch64OUTCOMP_S+ R QErrorAmplifier Drive ..
TPS6734IP ,Fixed 12-V 120-MA Boost-Converter Supply TPS6734I FIXED 12-V 120-mA BOOST-CONVERTER SUPPLY SLVS127A – AUGUST 1995 – REVISED JANUARY 1999D O ..
TPS6735ID ,Fixed Negative 5-V 200-MA Inverting DC/DC Converterblock diagram1EN EN8VCCCurrent-ENOvercurrentSense AmplifierComparator5FB x3 ΣDrive Latch4COMP+RDriv ..
TPS6735IDG4 ,Fixed Negative 5-V 200-MA Inverting DC/DC Converter 8-SOIC -40 to 85 SLVS141A − JULY 1996 − REVISED JANUARY 1997D O ..
TPS6735IDR ,Fixed Negative 5-V 200-MA Inverting DC/DC Converter SLVS141A − JULY 1996 − REVISED JANUARY 1997D O ..
TPS6735IDRG4 ,Fixed Negative 5-V 200-MA Inverting DC/DC Converter 8-SOIC -40 to 85 SLVS141A − JULY 1996 − REVISED JANUARY 1997D O ..
TSUS5202 ,Infrared emitting diodesElectrical CharacteristicsT = 25 °C, unless otherwise specifiedambParameter Test condition Symbol M ..
TSUS5402 ,Infrared emitting diodesElectrical CharacteristicsT = 25 °C, unless otherwise specifiedambParameter Test condition Symbol M ..
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 ..
TSV324IDT ,General purpose low voltage rail to rail input/output op-ampAbsolute maximum ratings Symbol Parameter Value Unit (1)V Supply voltage 7 V CC(2)V Differential i ..
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 ..
TPS6734ID-TPS6734IDR-TPS6734IP
Fixed 12-V 120-MA Boost-Converter Supply
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
3.75-V or Higher Input 3-μA Maximum Supply Current in
Shutdown Only 5 External Components Required High Efficiency... 85% Typical (5-V Input,
120-mA Output) 8-Pin SOIC and DIP Packages –40°C to 85°C Free-Air Operating
Temperature Range
descriptionThe TPS6734 is a fixed 12-V output boost converter capable of delivering 120 mA from inputs as low as
3.75 V. The device is pin-for-pin compatible with the MAX734 regulator and offers the following advantages:
lower supply current, wider operating input-voltage range, and higher output currents. As shown in Figure 1,
the only external components required are: an inductor, a Schottky rectifier, an output filter capacitor, an input
filter capacitor, and a small capacitor for loop compensation. The entire converter occupies less than 0.7 in2 of
PCB space when implemented with surface-mount components. An enable input is provided to shut down the
converter and reduce the supply current to 3 μA when 12 V is not needed.
The TPS6734 is a 170-kHz current-mode PWM ( pulse-width modulation) controller with an n-channel MOSFET
power switch. Gate drive for the switch is derived from the 12-V output after start-up to minimize the die area
needed to realize the 0.7-Ω MOSFET and improve efficiency at input voltages below 5 V. Soft start is
accomplished with the addition of one small capacitor. A 1.22-V reference (pin 2) is brought out for external use.
High efficiency at low supply voltages and low supply current in shutdown make the TPS6734 particularly
attractive for flash memory programming supplies, PCMCIA cards, and operational amplifiers in
battery-powered equipment. The TPS6734 is available in 8-pin DIP and SOIC packages and operates over a
free-air temperature range of –40°C to 85°C.
0.001 μF
3.75 V to 12 V
ENABLE
12 V, 120 mA
Figure 1. Typical Operating CircuitCOMP
GND
