Power Electronics / Power Management


Regulator has very low quiescent current

10 March 2004 Power Electronics / Power Management Products & Solutions

Microchip's new MCP1700 low-dropout regulator offers very low operating current, delivering up to 250 mA of output current, while consuming only 1,6 µA of quiescent current. The dropout voltage for this device is as low as 178 mV at 250 mA. It features an output voltage accuracy of ±0,4% (typical at 25°C), a line regulation of ±0,75% per volt, and a load regulation of ±1,0% per volt. In addition, the device has overcurrent limiting, and overtemperature shutdown. It is available in three-pin SOT23, SOT89-3 and TO92 packages. Standard output voltage options are 1,2, 1,8, 2,5, 3,0, 3,3 and 5,0 V. This LDO enables the use of low-cost ceramic capacitors on the input and output, reducing system cost. It is stable with a 1 µF ceramic output capacitor, and can also make use of tantalum and aluminium electrolytic capacitors.

Avnet Kopp, 011 809 6100

Memec SA, 011 897 8600

Tempe Technologies, 011 452 0530



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