Linear Technology Corp.
Milpitas, CA 95035
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Converter extends battery run time in handheld applications.
Supplied in 16-lead 3 x 5 mm DFN package or SSOP-16, LTC3534 synchronous buck-boost DC/DC converter delivers up to 500 mA output current to regulated output above, below, or equal to input using single inductor. It has 2.4-7 V input and 1.8-7 V output ranges as well as constant 1 MHz switching frequency, and inclusion of 2 N-channel and 2 P-channel MOSFETs deliver 94% efficiency. Burst...
Read More »DC/DC Converter extends battery run time.
Housed in 3 x 5 mm DFN package, 7 V Model LTC3534 delivers up to 500 mA of output current to regulated output above, below, or equal to input using single inductor. Synchronous buck-boost converter includes 2 N-Channel MOSFETs and 2 P-Channel MOSFETs to deliver efficiencies up to 94%. Device provides continuous transfer through all operating modes making it suited for 3- or 4-cell...
Read More »Micropower LDO supports 3.3 to 80 V input capability.
Offered in 16-lead TSSOP, high reliability (MP) grade LT3013 operates from -55 to +125Ã-
Read More »Battery Charger delivers up to 2 A in 3 x 3 mm package.
Designed for 2-cell Li-Ion/Polymer batteries, monolithic Model LT3650-8.2 accepts inputs up to 32 V and has 40 V absolute max rating. Device features operating frequency of 1 MHz and switch-mode architecture to minimize power dissipation. Charge current is programmable and dynamically adjustable up to 2 A. Once charging is terminated, LT3650-8.2 automatically enters low current standby mode that...
Read More »Step-Down Converter provides 3/1 A or dual 2 A outputs.
Operating from input voltage range of 2.25-5 V, LTC3546 is suited for single cell Li-Ion/polymer, or multicell alkaline/NiCad/NiMH applications. Each output is adjustable from 0.6-5 V and has turn-on supply tracking, while separate run and power good pins enable independent control of each channel. Switching frequency can be set at 2.25 MHz or is programmable from 750 kHz to 4 MHz, helping to...
Read More »Step-Down DC/DC Converter delivers 0.7 A per channel.
Supplied in 14-lead, 3 x 4 mm DFN or MSOP-16E package, 2-channel LT3509 features 2 internal 36 V, 1 A power switches with efficiencies up to 88%. Input range is 3.6-36 V, with transient protection to 60 V, and switching frequency is user-programmable from 300 kHz to 2.2 MHz. Used for regulating power from variety of sources, this current mode, PWM DC/DC converter features internal 0.80 V...
Read More »DC-DC Regulator provides up to 98% efficiency.
Operating from 4.5-36 VIN, Model LTM4609 regulates output voltage from 0.8-34 V and can deliver output power up to 120 W. Buck-boost DC/DC Ã-µModule integrates synchronous buck-boost DC/DC controller, 4 N-channel MOSFETs, input and output bypass capacitors, and compensation circuitry. To minimize undesirable frequency harmonics, LTM4609 is phase-lockable to external clock frequency ranging...
Read More »Step-Down DC/DC Converter has dynamically adjustable outputs.
Supplied in 3 x 3 mm QFN-20 or TSSOP-16E package, LTC3569 synchronous buck regulator delivers up 1.2 A continuous output current from one channel and 600 mA from each of 2 other channels. It operates from 2.5-5.5 V input using constant frequency current mode architecture, and each of 3 output voltages is independently programmable. Switching frequency can be programmed from 1-3 MHz or set at 2.25...
Read More »DC/DC Converter generates output voltage as low as 0.6 V.
Housed in 3 x 3 mm DFN package, Model LTC3565 can deliver up to 1.25 A of continuous output current. Synchronous step-down regulator uses internal switches with an RDS(ON) of 0.13 W and 0.15 W to deliver efficiencies as high as 95%. With constant frequency up to 4 MHz and current mode architecture, converter operates from input voltage of 2.5-5.5 V, making it suited for single-cell Li-Ion or...
Read More »DC-DC Boost Mode Converter drives up to 40 white LEDs.
From 12 V input, 45 V Model LT3599 can drive up to 4 strings of LEDs, each with up to ten 120 mA white LEDs in series, while delivering efficiencies up to 90%. Device offers 1.5% LED current matching to ensure uniform brightness of display. Dimming ratios as high as 3,000:1 can be attained using True Color PWM(TM) dimming. Housed in 5 x 5 mm QFN or TSSOP-28E package, converter features...
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