Monthly Archives: December 2017

LTC3789 High Efficiency Buck-Boost Regulator

Package The Linear Technology High Efficiency, Synchronous, 4 -Switch Buck-Boost Controller is a very sophisticated voltage regulator capable of regulating an output voltage to 1% from an input voltage range of 4V to 38V that can be above or below … Continue reading

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Rohm BA6860FS 3-phase Motor Driver

Package From 1994 another chip from the JVC Camcorder.  This one was located on an area of the board labeled “SERVO” so I guessed it was a motor driver.I was somewhat surprised to manage to find a datasheet.  Turns out … Continue reading

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Motorola MC6802

A few months ago I looked at a Motorola MC6800 bought on eBay that was branded with a Freescale logo, contained an Hitachi fabricated die (probably from late 80’s or early 90’s) and had a 2016 assembly date code.  Reader Jeremy … Continue reading

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HCF4007U Dual Complementary Pair plus Inverter

Integrated circuits do not get any simpler than this.  This is an HCF4007 made by ST with a week 27 1993 date code According to the datasheet it can be, depending on the pin connections, either 3 inverters, a 3 … Continue reading

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