Dual Broadband RF Mixer draws 300 mW/channel.

Linear Technology Corp.    Milpitas, CA 95035
Jun 10, 2011 To address high-density footprints of multimode 4G RRH (Remote Radio Head) MIMO receivers, LTC5569 offers 26.8 dBm IIP3 and operating frequency range of 300 MHz to 4 GHz. IC comes in 4 x 4 mm QFN package and can be configured to operate on any cellular band from 700 MHz to 2.7 GHz. It also features conversion gain of 2 dB and noise figure of 11.7 dB as well as inputs that can withstand strong in-band blocking interference signals without significantly degrading noise figure.

Step-Down Regulator is EN55022 Class B certified.

Linear Technology Corp.    Milpitas, CA 95035
May 19, 2011 Designed to accept 5-36 V input voltage, 8 A µModule® LTM4613 delivers regulated output voltage from 3.3-15 V with 2.0% max DC error over line, load, and temperature. Device meets EN55022 Class B EMI emissions limits at up to 96 W of output power. Housed in thermally efficient 15 x 15 x 4.3 mm LGA package, converter achieves peak operating efficiencies above 95% in 24 V to 12 V output applications. IC offers adjustable soft-start, output voltage tracking, and margining.

Battery Charge Controller IC is rated up to 60 V.

Linear Technology Corp.    Milpitas, CA 95035
Apr 20, 2011 Capable of driving typical DC/DC converter topologies, LTC4000 converts externally compensated DC/DC power supply into full-featured battery charger. It operates across 3-60 V input and output voltage range; is compatible with various input voltage sources, battery stacks, and chemistries; and preferentially provides power to system load when input power is limited. IC also controls external PFETs, providing low-loss reverse current protection and instant-on operation.

N-Channel MOSFET Gate Driver operates from -55 to +125°C.

Linear Technology Corp.    Milpitas, CA 95035
Apr 06, 2011 Supplied in thermally enhanced 10-lead MSOP, MP-grade LTC4441 delivers 6 A peak output current and increases DC/DC controller output power and efficiency. This enables driving of high-power N-channel MOSFETs or multiple MOSFETs in parallel. Along with adjustable 5-8 V onboard linear regulator for gate drive voltage and IC power, features include 5-25 V input supply, adjustable leading edge blanking, and TTL/CMOS-compatible input that can be driven below ground or above driver supply.

ADCs provide double data rate LVDS digital outputs.

Linear Technology Corp.    Milpitas, CA 95035
Mar 11, 2011 Housed in 6 x 6 mm and 9 x 9 mm QFN packages, 12-bit Model LTC2152-14 and 14-bit Model LTC2157-14 are single and dual channel simultaneous sampling ADCs, respectively. Operating from single 1.8 V supply, Model LTC2157-14 consumes 303 mW/channel at 250 MS/sec with SNR performance of 70 dB and SFDR of 90 dB at baseband with 1.5 Vp-p input range. Analog full power bandwidth of 1.25 GHz and ultralow jitter of 0.15 ps RMS enables undersampling of IF frequencies with optimal noise performance.

Dual Output DC/DC Controller boosts power and reliability.

Linear Technology Corp.    Milpitas, CA 95035
Mar 11, 2011 Exhibiting up to 95% efficiency, LTC3869/-2 synchronous, step-down DC/DC controller can maintain better than ±4% current mismatch between channels during steady state and transient conditions when both outputs are paralleled. Onboard 1.1 ohm gate drivers minimize switching losses and allow use of external MOSFETs to produce output currents to 25 A per channel with output voltages from 0.6-12.5 V. Operating from 4-38 V, IC maintains jitter-free performance even when switching edges cross between phases.

Step-Down Switching Regulator integrates dual power-on reset.

Linear Technology Corp.    Milpitas, CA 95035
Feb 11, 2011 With input voltage of 3.8-36 V, Model LT3688 is suited for load dump and cold crank conditions found in automotive applications. Dual 1.2 A, 280 mV internal switches deliver up to 800 mA of continuous output current from each channel at output voltages as low as 0.8 V, while Burst Mode® operation provides quiescent current of 115 µA. Housed in 24-pin 4 x 4 mm QFN or thermally enhanced TSSOP package, IC includes watchdog timer and offers programmable switching frequency of 350 kHz to 2.2 MHz.

DC/DC Controller operates in temp range of -40°C and 150°C.

Linear Technology Corp.    Milpitas, CA 95035
Jan 24, 2011 Synchronous step-down DC/DC controller LTC3810H-5 can directly step down voltage from 60 V to output voltage ranging from 0.8 V to 93% of VIN. Device has operating frequency range from 100 kHz to 1 MHz, and also can be synchronized to external clock over same range. Minimum on-time can be adjusted and set at as low as 100 nsec. Features included are programmable soft start or tracking, output overvoltage protection, power good output signal and programmable undervoltage lockout.

Synchronous Step-Down DC/DC Controller is specified to 150°C.

Linear Technology Corp.    Milpitas, CA 95035
Jan 14, 2011 Supplied in 5 x 5 mm QFN-32 package, LTC3810H-5 employs constant on-time valley current-mode control architecture. Controller can directly step down voltages from 60 V to output ranging from 0.8 V to 93% of VIN. Integrated 1 ohm onboard gate drivers minimize switching losses associated with driving N-channel MOSFETs at high frequency and voltage for output currents up to 25 A. Minimum on-time may be set as low as 100 nsec, and operating frequency is selectable from 100 kHz to 1 MHz.

Analog-to-Digital Converter achieves 101 dB SNR performance.

Linear Technology Corp.    Milpitas, CA 95035
Jan 12, 2011 Housed in 3 x 4 mm DFN and MSOP-16 packages, Model LTC2379-18 operates from 2.5 V supply and consumes 18 mW. Serial 18-bit, 1.6 Msps SAR ADC achieves 101 dB SNR and -118 dB THD while supporting fully differential ±5 V input range. Digital gain compression feature eliminates need for negative supply on ADC driver. Featuring max INL of ±2 LSB with no missing codes and guaranteed specifications over -40 to 125°C temperature range, device is suited for medical, industrial, and automotive applications.