Linear Technology Corp.

1630 McCarthy Blvd.
Milpitas, CA 95035

Synchronous Boost Regulator features internal 1.2 A switches.

With ability to deliver output voltages as high as 5.25 V from input voltage range of 1.8-5.5 V, LTC3125, 1.6 MHz, synchronous boost DC/DC converter suits multi-cell alkaline/NiMH applications. It can also deliver up to 500 mA of continuous output current at 5 V from 3.3 V input. Average input current limit can be programmed between 200-1,000 mA with Ã-

Supervisor IC monitors supply voltage and 2 adjustable inputs.

With polarity selection and buffered reference output, Model LTC2919 monitors 2 positive or negative supplies for undervoltage and overvoltage conditions. Two inputs have nominal 0.5 V threshold and Ã-

Communication Systems & Equipment

Six-Channel Supervisor has selectable supply tolerances.

Designed for monitoring equipment with numerous supply voltage rails, 6-channel LTC2932 includes separate open-drain voltage comparator outputs. External resistive divider between bandgap reference output, ADC input, and ground determines which channels are set to preset or adjustable voltage monitor inputs. Offered in 20-pin TSSOP package, IC has adjustable reset timeout period as well as reset...

Controls & Controllers

Piezo Driver generates its own high voltage.

With input voltage of 2.7-10 V, full-bridge Model LT3572 is capable of driving 2 piezo motors at up to 40 V. Each driver and 900 mA boost converter can be independently turned on or off, making device suited for dual-axis image stabilization as well as auto focus and zoom motor control for digital still and video cameras. Housed in 4 x 4 mm QFN package, LT3572 includes soft-start, external...

Electrical Equipment & Systems

Analog-to-Digital Converter achieves 81.2 dB SNR.

Sampling at 105 Msps, 16-bit Model LTC2217 consumes 1,190 mW and can interface to variety of digital systems with multiple digital output modes. Ultra-low jitter helps maintain high SNR at high input frequencies, yielding 80.4 dBFS SNR at 70 MHz, while high linearity sample/hold circuitry allows for low distortion of 92 dBFS at 70 MHz. Separate output power supply enables CMOS output swing to be...

Communication Systems & Equipment

High-Side Power Monitor measures current and voltage.

Offered in MSOP-10 and 3 x 3 mm DFN-10 packages, LTC4151 utilizes internal 12-bit ADC to continuously measure high-side current and input voltage from 7-80 V to give true power reading. Single-chip solution has 2-wire, IÃ-²C-compatible interface that reports input power data, which can be delivered continuously or via no-latency single snapshot mode. Third low-voltage input can be used to...

Controls & Controllers

DC/DC Converter features output disconnect and LDO.

Model LTC3537, 2.2 MHz current mode synchronous boost regulator features internal 600 mA switches that deliver output voltages as high as 5.25 V from input voltage range of 0.68-5 V. At 3.3 V, it can deliver up to 100 mA of continuous output current from single alkaline cell or 300 mA from dual cell input. With input range of 1.8-5.5 V, 100 mA LDO can deliver outputs as low as 0.6 V. When both...

Agricultural & Farming Products

Hot Swap Controller features adjustable current limit.

Designed to protect boards with load supply voltages from 2.9-26.5 V, Model LTC4218 enables safe board insertion and removal from live backplane, using external N-channel pass MOSFET to limit inrush current during power up. With adjustable current limit, user can vary current limit threshold under various loading conditions. RoHS-compliant controller includes current monitor and fault outputs, 2%...

Electronic Components & Devices

Active Upconverting Mixer offers 1.5-3.8 GHz dynamic range.

Model LT5579 has frequency range covering .9 GHz cellular bands as well as 2.6 and 3.5 GHz WiMAX frequency bands. At 2.14 GHz, it offers 27.3 dBm output IP3 linearity and 9.9 dB noise figure. It can be driven with signal levels at as much as -5 dBm without elevating its output noise floor above -158 dBm/Hz. Suited for wireless transmitters in basestations, double-balanced mixer operates from 3.3...

Controls & Controllers

Step-Down DC/DC Converter includes linear controller.

Housed in 3 x 3 mm DFN-12 package, Model LT1939 operates from VIN range of 3-25 V, making it suited for regulating power from variety of sources, including protected automotive batteries, industrial supplies, and unregulated wall adapters. Unit's 2.3 A internal switch delivers up to 2 A continuous output current at voltages as low as 0.8 V. Switching frequency is user programmable and...