All Sections: LT - 4

31. Bandpass filter has adjustable Q
    Circuits Analog Devices LT1228
    The bandpass filter circuit shown in Figure 1 features an electronically controlled Q. Q for a bandpass filter is defined as the ratio of the 3 dB pass bandwidth to the stop bandwidth at some specified attenuation. The center frequency of the ...
    12-12-2023

32. High Voltage, Micropower Isolated Monolithic Flyback Regulator in ThinSOT Simplifies Design
    News Linear Technology LT8300
    Linear Technology Corporation announces the LT8300 , a low quiescent current monolithic flyback regulator that significantly simplifies the design of an isolated DC/DC converter. No optocoupler, third winding or signal transformer are required for ...
    30-08-2012

33. High Efficiency PoE++ PD Controllers Provide up to 90W Delivered Power
    News Linear Technology LT4275
    Linear Technology Corporation introduces the LT4275 , LTPoE++™, PoE+ and PoE-compliant powered device (PD) interface controllers for applications requiring up to 90W of delivered power. PoE+ limits the maximum PD power delivery to 25.5W, ...
    04-09-2012
34. Buck-Boost Controller Delivers Hundreds of Watts with 99% Efficiency
    Circuits Linear Technology LT8705
    Design Note 521 Introduction A DC/DC converter’s efficiency and component temperature are important considerations in high power applications where high current could overheat the catch diode used in an asynchronous buck or boost topology. ...
    19-08-2015
35. 40V, 1.5A Robust Linear Regulator Has Current & Temperature Monitor Outputs
    News Linear Technology LT3081
    Linear Technology Corporation announces the LT3081 , a rugged 1.5A wide input voltage range linear regulator with key usability, monitoring and protection features. The device has an extended safe operating area (SOA) compared to existing ...
    02-07-2013
36. Design Notes: 42 V 2.5 A Synchronous Step-Down Regulator with 2.5 μA Quiescent Current
    Circuits Linear Technology LT8610 LT8611
    Linear Technology Design Note 504 Introduction The LT8610 and LT8611 from Linear Technology are 42 V, 2.5 A synchronous step-down regulators that meet the stringent high input voltage and low output voltage requirements of automotive, industrial, ...
    09-09-2014
37. ISSI Announces Single Stage High Power Factor AC/DC LED Controller for Retrofit LED Bulbs
    News ISSI IS31LT3932
    85V to 265V Input, 0.97 PF, High Efficiency LED Constant Current Controller, for Up to 30W Compact Solid State LED Illumination Applications Integrated Silicon Solution , Inc. announced the IS31LT3932 , a high performance universal AC input LED ...
    02-12-2013
38. 45 V Input 200 mA LDO Offers Active Output Discharge
    News Linear Technology LT3063
    Linear Technology Corporation announces the LT3063 , a high voltage, low noise, low dropout voltage linear regulator with active output discharge. The IC delivers up to 200 mA of continuous output current with a 300 mV dropout voltage at full load. ...
    14-07-2014
39. IO-Link Transceiver Includes Integrated Step-Down Regulator & LDO
    News Linear Technology LT3669
    The LT3669 is an IO-Link PHY compatible (COM1/COM2/COM3) industrial transceiver that includes a high efficiency step-down regulator and a low dropout linear regulator. The device offers cable interface protection to 60 V. Wake-up detect ...
    17-07-2014
40. Control the Voltage of a Remote Load Over Any Length of Copper Wire
    Circuits Linear Technology LT6110 LT3080 LT3976
    Introduction A common problem in power distribution systems is loss of regulation due to the cable/wire voltage drop between the regulator and the load. Any increase in wire resistance, cable length or load current increases the voltage drop over ...
    20-10-2015

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