Regulators Provide 70 mV Dropout Voltage
Having a 70 mV typical dropout voltage (3 V output with IOUT at 200 mA), Seiko Instruments’ S-1155 Series CMOS voltage regulators have an output voltage range from 1 to 5 V selectable in 0.05 V step with ±1% accuracy and an input voltage ranging from 1.50 to 5.50 V. The lead-free SOT-89-5-packaged devices yield a typical consumption of 70 µA (90 µA max at 3 V output) during operation and 0.10 µA (1 µA max) during shutdown. The regulators provide a ceramic capacitor of 4.70 µF, output current of 500 mA and typical ripple rejection of 70 dB. Pricing is $0.28 each in 10,000 quantities.
Seiko Instruments USA