SC5205-1.8CSKTR

POWER MANAGEMENT Description The SC5205 is a 150mA 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. 150mA Ultra Low Dropout, Low Noise Micropower Linear Regulator PRELIMINARY Features Ultra low dropout voltage - 165mV @ 150mA Guaranteed 150mA output current Low ground pin current at all loads (VO(NOM) - 5%) IO = 100µA, f = 100Hz en V EN IO = 50mA, C BYP = 10nF, C O = 2.2µF, BW = 10Hz to 99kHz Low = O/P OFF Hi gh = O/P ON 1.8 210 0.4 nV Hz V Enable Input C urrent IEN VEN £ 0.4V VEN ³ 1.8V -0.01 5 -1 10 20 µA µA Notes: (1) Defined as the input to output differential at which the output voltage drops to 2% below the value measured at a differential of 1V. (2) As the load resistance further decreases, the SC5205 folds back the output current to approximately 150mA at VO = 0V. ã 2001 Semtech Corp. 3 www.semtech.com SC5205 POWER MANAGEMENT Pin Configuration Top View PRELIMINARY Ordering Information D ev ice SC 5205-X.XC SKTR(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. SOT-23-5 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 (requi red) between thi s pi n and GND to reduce output noi se Voltage output. ã 2001 Semtech Corp. 4 www.semtech.com SC5205 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