Linear Technology Corp.
Milpitas, CA 95035
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Boost Regulator offers reverse battery protection.
Featuring output disconnect at shutdown, 1.2 MHz LTC3499/B current mode synchronous boost dc/dc converter operates from 1.8-5.5 V input supply and has 2-6 V adjustable output voltage. Internal switches provide 750 mA current limit (min) and have RDS(ON) of 0.45 ohm (N-Channel) and 0.58 ohm (P-Channel) to deliver efficiencies as high as 94%. Available in 3 x 3 mm DFN package, IC is suited for...
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DC/DC Converters are designed for isolated power supplies.
With PolyPhaseÃ-® operation for current sharing and paralleling of 2 circuits, LTC3705/LTC3706/LTC3725/LTC3726 DC/DC converters support standard output voltages of 5, 12, 28, and 52 V as well as low voltages down to 0.6 V. LTC3705/LTC3725 primary-side controllers are forward drivers, and feature dual and single-switch operation respectively. LTC3706/LTC3726 secondary-side ICs are current mode...
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Buck Regulator can be cascaded for up to 84 A.
Monolithic synchronous buck regulator LTC3415 delivers up to 7 A of output current at 0.6 V. PolyPhaseÃ-® operation enables up to 12 units to be run together with interleaved phases. Product features input voltage range of 2.5-5.5 V, 450 Ã-µA quiescent current, 1.5 MHz nominal adjustable frequency, and Ã-
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Op Amps suit handheld and battery-powered applications.
Housed in tiny DFN package, Models LT6001 and LT6002 are 1.8 V dual and quad operational amplifiers that draw 13 Ã-µA each. Input offset voltage is 500 Ã-µV max at 25Ã-
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Analog-to-Digital Converter enables wideband sampling.
Offering 1.2 GHz analog input bandwidth, 12-bit, 250 Msps Model LTC2242-12 operates on 2.5 V supply and consumes just 740 mW. It can be driven with analog input range of 2 Vp-p to enable SNR performance of 65.1 dB at 240 MHz input frequency, with SFDR of 74 dB. Housed in 64-pin, 9 x 9 mm QFN package, converter provides flexibility to select between LVDS, full-rate CMOS, or demultiplexed CMOS...
Read More »Flyback Controller charges capacitors of any size.
Model LT3750 is designed to charge capacitors to voltages up to 1,000 V. It drives external N-Channel MOSFET and can charge 100 Ã-µF capacitor to 300 V in less than 300 ms. Controller offers input voltage of 3-24 V, boundary mode control scheme, and 78 mV current sense that limits peak switch current. LT3750's primary-side sensing topology eliminates need for external output voltage divider....
Read More »Controller features 8-bit ADC and I2C/SMBus interface.
Model LTC4215 2.9-15 V Hot Swap(TM) controller has integrated digital power monitoring to allow platform management in high-availability systems by measuring card voltages and currents and by recording past and present fault conditions. Inrush current, circuit breaker limits, and undervoltage/overvoltage thresholds are independently adjustable. It incorporates dI/dt Controlled Soft-Start, and is...
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White LED Driver features integrated Schottky diode.
Housed in SC70 package, Model LT3491 drives up to 6 white LEDs from single Li-Ion cell at efficiencies over 75%. It switches at 2.3 MHz, allowing use of tiny inductor and capacitors, while keeping switching noise out of critical RF frequency bands. Chip acts as constant current source, delivering same current to each white LED, regardless of fluctuations in forward voltage drop, ensuring uniform...
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Charge Pump drives main and camera LEDs in cell phones.
Manufactured in 3 x 3 x .75 mm QFN package, LTC3210 provides 5 LED current sources at up to 500 mA of total output current: 4 x 25 mA LED Main display and one 400 mA Camera LED display. Each display is digitally controlled with independent dimming and programming via single wire interface. This integrated, 800 kHz, 1x/1.5x/2x multimode charge pump has 2.9-4.5 V input range and exhibits...
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Power Management IC suits handheld applications.
Featuring automatic input detection and selection, LTC3550-1 integrates linear Li-Ion battery charger that draws power from wall adapter or USB port. Charger delivers up to 950 mA charge current from wall adapter supply or 500 mA from USB supply using constant-current/constant-voltage algorithm, with final float voltage accuracy of Ã-
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