Batteries and Portable Power

Fairchild Semiconductor Introduces FAN250x and FAN251x Series of LDOs

Fairchild Semiconductor (San Jose, CA) introduced a new family of CMOS LDOs for battery-powered portable applications, including CDMA, TDMA and GSM cellular phone handsets, MP3 players, laptop and notebook computers, digital cameras, camcorders and other portable electronic devices. The FAN250x and FAN251x Series has a ground current of 25µ at 50mA and a dropout voltage of 50mV at 50mA.

The FAN250x and FAN251x Series is offered in 50, 100, 150 and 200mA versions with adjustable 2.5, 2.6, .7, 2.8, 2.85, 3.0 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 cellular phones. All are supplied in SOT-23-5 surface-mount package and pin-out. Other features include a shut-down current of 1µA, two-percent accuracy over the full temperature range, and thermal overload protection.

Most models in the FAN250x and FAN251x Series are priced at $0.30 in 1,000-piece quantities. The rest, which are 200mA versions, are priced at $0.36 each in 1,000-piece quantities. These include the FAN2504/05/14/15 models. All devices are currently available, with delivery in seven to eight weeks.

Fairchild Semiconductor International
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