Linear Technology Corp.
Milpitas, CA 95035
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Power Supply Sequencer enables combination of modules.
Model LTC2924, housed in 16-pin SSOP package, is capable of input monitoring and enabling 4 power supplies in sequence during power up and power down. It can also be cascaded to sequence virtually unlimited number of supplies. Features include power sequencing error detection and adjustable time delay between power supplies. LTC2924 is suited for multi-supply systems, such as telecommunications...
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Synchronous DC/DC Controller corrects output voltage errors.
Operating from 4-30 V input supplies, 2-phase, step-down Model LTC3709 eliminates voltage errors introduced by PCB traces and high load currents. Integrated differential amplifier measures output voltage directly at load and compensates for voltage drop error. Suited for driving N-channel MOSFETs, controller delivers up to 40 A to loads as low as 0.6 V. It can operate from 2-90% duty cycle at 200...
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MicroPower Inverter has integrated Schottky diode.
Available in 6-lead SOT-23 package, LT3483 utilizes current-limited, fixed off-time architecture and features BurstModeÃ-® operation for quiescent current of 40 Ã-µA. This 40 V, 200 mA inverting dc/dc converter has 2.5-16 V input voltage range and generates regulated negative outputs to -38 V. With footprint of less than 40 mmÃ-², product features integrated feedback resistor output...
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Step-Up DC/DC Converter comes in SOT-23 package.
With profile height of 1 mm, LTC3426 employs antiringing circuitry, internal soft-start, and internal 2 A MOSFET switch. Its 1.6-4.2V input voltage range enables product to operate from dual cell Alkaline/NiMH/NiCd to single cell Li-Ion batteries, delivering outputs up to 5.5 V with efficiencies over 90%. It has constant 1.2 MHz switching frequency, and 100 milliohm switch generates up to 800 mA...
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Very Low Dropout Regulator maintains 45 mV of dropout.
With input voltage capability down to 0.9 V, Model LTC3025 delivers up to 300 mA of output current. It offers micropower operation with 54 Ã-µA of quiescent current, and less than 1 Ã-µA in shutdown, maximizing runtime in handheld applications. Unit optimizes stability and transient response with low ESR ceramic output capacitors as small as 1 Ã-µF. Available in 6-lead DFN package...
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Step-Down Switching Regulator offers Burst Mode-® operation.
Manufactured in TSSOP-16E thermally enhanced package, LT3434EFE maintains quiescent current under 100 Ã-µA and operates within VIN range of 3.3-60 V. Its 3 A internal switch delivers up to 2.75 A continuous output current at voltages down to 1.25 V. Product has oscillator, control, and logic circuitry integrated into one chip; features 200 kHz switching frequency; and is offered in E- and...
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Quad DC/DC Converter is suited for TFT LCDs.
Packaged in 4 x 4 mm QFN, LT1942 integrated quad switching regulator provides necessary power supply functions for 2-7 in. TFT LCD panels and their white LED backlighting. It operates from input voltage of 2.6-16 V and has 1 MHz switching frequency. Incorporating 2 boost and one inverting DC/DC converters as well as Schottky diodes, product also features programmable power sequencing,...
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Microprocessor Power Manager comes in 4 x 4 mm QFN package.
With 2.5-5.5 V input voltage range, LTC3445 xScale microprocessor power supply integrates monolithic synchronous current mode buck regulator that delivers up to 600 mA of output current. User selects constant 1.5 MHz or spread spectrum switching frequency. Onboard I2C interface controls 6-bit programmable dynamically adjustable output voltage range of 0.85-1.55 V and slew rate. Product also...
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Dual Diodes deliver 2.6 A.
Containing two 100 mohm P-channel MOSFETS, Model LTC4413 is suited for applications requiring diode OR function for load sharing or automatic switchover between 2 input power sources. It offers current limit and thermal protection as well as slow turn-off to protect against voltage spikes. Measuring 3 x 3 mm, DFN package permits each channel to deliver up to 2.6 A from input supply of 2.5-5.5 V....
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I-Q Modulator boosts compact basestation transmitters.
Model LT5528 Modulator targets wireless infrastructure applications including W-CDMA, TD-SCDMA, GSM, and PHS. It suits broadband fixed wireless access as well as point-to-point radio links and other high performance radios. Unit offers carrier suppression of -47 dBm at 2.14 GHz. I and Q inputs accept complex modulation signals from baseband circuitry and upconvert them directly to RF using local...
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