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Family Of CMOS LDOs

Wed, 05/30/2001 - 11:55am
Fairchild Semiconductor International introduces a new family of cost-effective CMOS low dropout voltage regulators (LDOs) for battery-powered portable applications, including CDMA, TDMA and GSM cellular phone handsets, PDAs, MP3 players, laptop and notebook computers, digital cameras, camcorders and other portable electronic devices. The FAN250x and FAN251x series has very low ground current (22μA at 150mA load) and very low dropout voltage (100mV at 100mA load) to provide ultra-low power consumption that extends battery life.

The FAN250x and FAN251x series is offered in 50mA, 100mA, 150mA and 200mA versions with adjustable, 2.5V, 2.6V, 2.7V, 2.8V, 2.85V, 3.0V and 3.3V options. Additional options include a bypass capacitor for enhanced noise performance, an under-voltage error flag usable as a power-good indicator and fast start enable for applications requiring fast turn-on, like cell phones. All are supplied in the industry-standard SOT-23-5 surface-mount package and pin-out.

Other features include exceptional loop stability that enables operation with all types of low cost capacitors (e.g. ceramic), low shut down current (1μA), 2% accuracy over the full temperature range, and thermal overload protection.

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