Linear Technology Corp.

1630 McCarthy Blvd.
Milpitas, CA 95035

Laboratory and Research Supplies and Equipment

RF Detector features 60 dB dynamic range.

Logarithmic Model LT5534 operates over RF input frequency of 50 MHz to 3 GHz and is capable of detecting full-scale RF changes with 38 ns delay. Output is directly proportional to logarithm of average RF voltage input. At 900 MHz, unit provides repeatable measurement of RF power within Ã-

Construction Equipment and Supplies

Diode-OR Controller saves power and board space.

Available in 3 x 2 mm, 8-pin DFN and 8-pin SO packages, LTC4354 consists of -48 V diode-OR controller for high-availability systems. By controlling external N-channel MOSFETs for redundant supply paths, it improves efficiency and eliminates heat sinks. Product minimizes power dissipation due to lower forward voltage drop and conserves board space. Operating with supply voltages to -80 V, unit...

Electrical Equipment & Systems

DC/DC Converter features 500 kHz operating frequency.

Housed in 6-lead SOT-23 package, Model LT1933 step-down converter includes internal 0.75 A power switch providing efficiencies as high as 88%. Input range of 3.6-36 V makes unit suitable for regulating power from wide variety of sources. Cycle-by-cycle current limit provides protection against shorted outputs, and soft-start eliminates input current surge during start up. Low current shutdown of...

Agricultural & Farming Products

Dual Hot Swap(TM) Controller protects low-voltage processors.

Able to control core supply voltages from 1-13.5 V, LTC4221 features dual-level circuit breaker with adjustable filter and 25 mV threshold. In addition to active in-rush current limiting for live insertion, product protects processor from latch-up due to supply sequencing problems. Separate ON inputs, high side gate drivers for N-channel MOSFETs, and power good outputs allow user to configure...

Electrical Equipment & Systems

RF Active Transmit Mixer is suited for 3G basestations.

Housed in 16-pin, 4 x 4 mm, surface-mount QFP package, LT5521 provides linearity and signal-to-noise performance that allows designers to build compact 3G cellular basestations. It incorporates differential input and output architecture, supporting linearity over operating frequency range of 10 MHz to 3.7 GHz. Able to be used in upconverting or downconverting application, product requires -5 dBm...

Controls & Controllers

Voltage Regulator offers input capability down to 0.9 V.

Model LT3020 has low dropout voltage of 150 mV while delivering up to 100 mA of output current. Low VIN capability enables it to operate across voltage range of single-cell alkaline and NiMH batteries. Unit offers micropower operation with 120 Ã-µA of quiescent current and less than 3 Ã-µA in shutdown. Available in 8-lead DFN or MSOP package, regulator includes reverse-battery protection,...

Software

LED Multi-Display Driver features 2-wire I2C interface.

Model LTC3206 is an 800 kHz, step-up/step-down, fractional charge pump voltage converter that can drive 1-6 LED main display, 1-4 LED sub-display, plus RGB display, all in 4 x 4 mm QFN package. Each display has digital control with independent dimming and programming via 2-wire I2C serial interface. Input voltage range of 2.8-4.5V and efficiencies up to 92% without inductors optimizes driver for...

Controls & Controllers

DC/DC Converter suits space-constrained applications.

Model LT1935 is a 2 A, 40 V step-up converter in ThinSOT(TM) package. Input voltage of 2.3-16 V enables unit to operate from single-cell, Li-Ion batteries up to fixed 15 V input rails, delivering outputs up to 38 V. NPN switch achieves VCESAT of 180 mV at 2 A, independent of supply voltage. Constant 1.2 MHz switching frequency allows designers to keep switching noise out of noise-sensitive...

Agricultural & Farming Products

Controller ensures maximum CPU speed without overheating.

Housed in 38-lead, 5 x 7 mm QFN package, LTC3738 Intel VRM10 PentiumÃ-® 4 power supply controller provides precision current balancing and remote thermal monitoring capabilities. PolyPhase(TM) multichannel step-down dc/dc controller integrates 3 synchronous MOSFET drivers and is scalable from 3-12 phases to meet CPU load current requirements from 60-200 A. Unit distributes power equally among...