Voltage regulators series to automotive specs

30 January 2002 Power Electronics / Power Management

The Epson SCI7810YxB series is now available as a revised version of the company's SCI7810YxA series with an expanded temperature range for automotive applications. The SCI7810YxB series are fixed type positive voltage regulators using the CMOS silicon gate process. The device mainly consists of the reference voltage circuit driven with low operating current, differential amplifier, transistor for output control and voltage setting resistor.

Typical features are the low operating current (typ 1,5 µA at VDD = 5,0 V), a small difference between the input and output voltage (typ 0,02 V (IO = 10 mA, VO = 5,0 V), built-in, highly stable reference voltage source (typ 1,0 V), a small temperature factor on the output voltage (typ -100 ppm/°C) and a wide operating voltage range of maximum 15 V.

The output voltage is fixed on the ICs. A wide variety of standard voltage products is available: the series offers 14 types in the range of 1,5 to 6 V. The SCI7810Yxx comes in a SOT89-3 pin plastic package.

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