500-mA negative micropower LDO offers high reliability benefits
August 19, 2010 // Paul Buckley
Linear Technology Corporation has released a new high reliability, military plastic MP-grade version of the LT1175, a 500mA negative micropower low dropout regulator.
The MP-grade LT1175 is offered in SOIC-8 and DD-Pak packages with a -55 to +125 degrees C operating junction temperature range. With a wide input voltage range of -4.3 V to -20 V, the LT1175 features micropower operating currents of 45 µA quiescent and 10
µA in shutdown, preventing output voltage rise under no-load conditions. The device's reference amplifier topology ensures precision DC characteristics and the ability to maintain good loop stability with a wide range of output capacitors. The device's power transistor anti-saturation design enables very low dropout voltage of 500 mV (typical at full load). Fixed 5 V and adjustable (-3.8 V to -19.5 V) output voltage versions are available.
Several features make the LT1175 user-friendly. The SHDN pin can interface directly to either positive or negative logic levels. Unlike prior regulators, the increase in quiescent current during a dropout condition is actively limited. The LT1175 offers complete protection including user-selectable current limit at 200 mA, 400 mA, 600 mA and 800 mA, power limiting (current limit foldback), thermal shutdown and the ability to force the output to reverse voltage without damage or latchup.
In addition to the SOIC-8 and power DD-Pak packages, the LT1175 is available in a 3-lead SOT-223, a through-hole power TO-220 package and an 8-pin PDIP package. C-grade operating junction temperature is 0 to +125 degrees C, I grade is specified from -40 to +125 degrees C, and MP grade is -55 to +125 degrees C. 1k pricing for the MP grade in DD-Pak is 9.60 US Dollars and SOIC is 8.70 US Dollars, and devices are available in stock.
Ag nanodiscs to boost MoS2's LED performance
April 01, 2015
Researchers at Northwestern University's McCormick School of Engineering have fabricated a series of silver nanodiscs which ...
MOSTCO demos integration of MOST bus with Autosar
IoT encryption: a revenue driver for CSPs
3D Qualcomm SoCs by 2016
How will deep learning change SoCs?
Electronics printed in France
March 31, 2015
During an industry meeting last week, the French association of printed electronics (Association Française de l'Électronique ...
Sony licenses bonding technology from Ziptronix
Delphi selected to build Audi’s autopilot computer
Medical chip market on 12% CAGR
- High-Speed, Real-Time Recording Systems Handbook
- New Linear Regulators Solve Old Problems
- Intelligent Over Temperature Protection for LED Lighting Applications
- Intel helps to Turbocharge Infotainment Systems Designs
InterviewInfineon: CAN FD success goes at the expense of FlexRay
The faster version of the venerable CAN bus, CAN FD is currently taking off at several carmakers. Infineon's Thomas Böhm, Head of Body / Automotive, believes this could well go at the expense of FlexRay. ...
Filter WizardCheck out the Filter Wizard Series of articles by Filter Guru Kendall Castor-Perry which provide invaluable practical Analog Design guidelines.
Linear video channel
READER OFFERRead more
This month, DecaWave is offering EETimes Europe's readers the chance to win two TREK1000 kits to evaluate its Ultra-Wideband (UWB) indoor location and communication DW1000 chip in different real-time location system topologies.
Worth €947, the kit allow designers to prove a concept within hours and have a prototype ready in days. Based on the two-way ranging scheme, the kit lets you test...MORE INFO AND LAST MONTH' WINNERS...
December 15, 2011 | Texas instruments | 222901974
Unique Ser/Des technology supports encrypted video and audio content with full duplex bi-directional control channel over a single wire interface.