SC2982CSK-4.0TR

POWER MANAGEMENT Description The SC2982 is a 50mA ultra low dropout linear regulator with a built in CMOS/TTL logic level enable switch. It is designed specifically for battery powered applications where low quiescent current and low dropout are critical for battery longevity. 50mA Ultra Low Dropout, Low Noise Micropower Linear Regulator PRELIMINARY Features Ultra low dropout voltage - 100mV @ 50mA Guaranteed 50mA output current Low ground pin current at all loads (VO(NOM) - 5%) IO = 100µA, f = 100Hz, C BYP = 10nF, C O = 10µF Min 200 50 0.05 BW = 300Hz to 50kHz, IO = 1mA, C BYP = 10nF, C O = 10µF Low = O/P OFF Hi gh = O/P ON Enable Input C urrent IEN VEN £ 0.4V VEN ³ 1.8V 1.8 -0.01 5 -1 10 20 30 0.4 Ty p PRELIMINARY Unless specified: VIN = VO(NOM) + 1V, IO = 100µA, CO = 1µF, VEN ³ 1.8V. Values in bold apply over the full operating temperature range. Max U nits mA db %/W µVrms V V µA µA ∆VO (%) PD eno V EN Notes: (1) Defined as the input to output differential at which the output voltage drops 100mV below the value measured at a differential of 1V. (2) As the load resistance further decreases, the SC2982 folds back the output current to approximately 150mA at VO = 0V. ã 2001 Semtech Corp. 3 www.semtech.com SC2982 POWER MANAGEMENT Pin Configuration PRELIMINARY Ordering Information D ev ice SC 2982C SK-X.XTR(1)(2) P ackag e 5 pi n SOT-23 Notes: (1) Where -X.X denotes voltage options. Available voltages are: 1.8V, 2.5V, 2.8V, 3.0V, 3.3V, 3.6V, 3.8V, 4.0V and 5.0V. (2) Only available in tape and reel packaging. A reel contains 3000 devices. Block Diagram Pin Descriptions Pin 1 2 3 4 5 Pin N ame VIN GND EN BYP VO Pin Function Supply voltage i nput. Ground. Acti ve hi gh enable i nput. C onnect to VIN i f not bei ng used. Reference bypass. C onnect a 10nF capaci tor between thi s pi n and GND to reduce output noi se Voltage output. ã 2001 Semtech Corp. 4 www.semtech.com SC2982 POWER MANAGEMENT Outline Drawing - SOT-23-5 PRELIMINARY Land Pattern - SOT-23-5 Contact Information Semtech Corporation Power Management Products Division 652 Mitchell Rd., Newbury Park, CA 91320 Phone: (805)498-2111 FAX (805)498-3804 ã 2001 Semtech Corp. 5 www.semtech.com