LM3354MMX-1.8 ,Regulated 90mA Buck-Boost Switched Capacitor DC/DC ConverterPin DescriptionPin Number Name Function1V Input Supply VoltageIN2 C1− Negative Terminal for C13 C1+ ..
LM3354MMX-3.3 ,Regulated 90mA Buck-Boost Switched Capacitor DC/DC ConverterPin DescriptionPin Number Name Function1V Input Supply VoltageIN2 C1− Negative Terminal for C13 C1+ ..
LM3354MMX-5.0 ,Regulated 90mA Buck-Boost Switched Capacitor DC/DC ConverterApplicationsLM3355 for up to 50mA of output current.n White LED display backlightsn 1-cell Lilon ba ..
LM335A ,Precision Temperature SensorLM135LM235-LM335,APRECISION TEMPERATURE SENSORSo. DIRECTLY CALIBRATED IN Ko. 1 C INITIAL ACCURACY. ..
LM335AD ,PRECISION TEMPERATURE SENSORSABSOLUTE MAXIMUM RATINGSSymbol Parameter LM135 LM235 LM335,A UnitCurrent mAI Reverse 15 15 15RI For ..
LM335ADT ,PRECISION TEMPERATURE SENSORSLM135LM235-LM335,APRECISION TEMPERATURE SENSORSo. DIRECTLY CALIBRATED IN Ko. 1 C INITIAL ACCURACY. ..
LME0509DC , LME Series Isolated 250mW Single Output DC/DC Converters
LME49710HA , High Performance, High Fidelity Audio Operational Amplifier
LME49710HA/NOPB ,High Performance, High Fidelity Audio Operational Amplifier 8-TO-99 -40 to 85ELECTRICAL CHARACTERISTICSThe following specifications apply for V = ±15V, R = 2kΩ, f = 1kHz, and T ..
LME49710MA/NOPB ,High Performance, High Fidelity Audio Operational Amplifier 8-SOIC -40 to 85FEATURES DESCRIPTIONThe LME49710 is part of the ultra-low distortion, low-2• Easily Drives 600Ω Loa ..
LME49710NA/NOPB ,High Performance, High Fidelity Audio Operational Amplifier 8-PDIP -40 to 85Electrical Characteristics. The ensured specifications apply only for the test conditions listed.So ..
LME49713HA , High Performance, High Fidelity Current Feedback Audio Operational Amplifier
LM3354MM-1.8-LM3354MM-3.3-LM3354MM-4.1-LM3354MM-5.0-LM3354MMX-1.8-LM3354MMX-3.3-LM3354MMX-5.0
Regulated 90mA Buck-Boost Switched Capacitor DC/DC Converter
LM3354
Regulated 90mA Buck-Boost Switched Capacitor DC/DC
Converter
General DescriptionThe LM3354isa CMOS switched capacitor DC/DC con-
verter that producesa regulated output voltageby automati-
cally steppingup (boost)or stepping down (buck) the input
voltage.It acceptsan input voltage between 2.5V and 5.5V.
The LM3354is available with standard output voltagesof
1.8V, 3.3V, 4.1V (idealfor white LED applications), and 5.0V. other output voltage options between 1.8V and 5.0V are
desired, please contact your National Semiconductor repre-
sentative.
The LM3354’s proprietary buck-boost architecture enablesto 90mAof load currentatan average efficiency greater
than 75%. Typical operating currentis only 375µA and the
typical shutdown currentis only 2.3 µA.
The LM3354is availableina 10-pin MSOP package. This
package hasa maximum heightof only1.1 mm.
The high efficiencyofthe LM3354, low operating and shut-
down currents, small package size, andthe small sizeofthe
overall solution make this device idealfor battery powered,
portable, and hand-held applications.
See the LM3352forupto 200mAof output currentor the
LM3355forupto 50mAof output current.
Features Regulated VOUT with ±3% (5.0V, 4.1V, and 3.3V
options)or ±4% (1.8V option) accuracy Standard output voltagesof 1.8V, 3.3V, 4.1V, and 5.0V Custom output voltages available from 1.8Vto 5.0Vin
100 mV increments with volume order 2.5Vto 5.5V input voltage range Upto 90mA (5.0V, 4.1V, and 1.8V options)or 70mA
(3.3V option) output current >75% average efficiency Uses few, low-cost external components Very small solution size 375µA typical operating current 2.3µA typical shutdown current1 MHz typical switching frequency Architecture and control methods provide high load
current and good efficiency MSOP-10 package Over-temperature protection
Applications White LED display backlights 1-cell Lilon battery-operated equipment including PDAs,
hand-held PCs, cellular phones Flat panel displays Hand-held instruments Li-Ion, NiCd, NiMH,or alkaline battery powered systems
Typical Operating CircuitSeptember 2002
LM3354
Regulated
90mA
Buck-Boost
Switched
Capacitor
DC/DC
Converter
