r1141q series small 120ma ldo no.ek-086-091101 cmos ldo regulator the r1141q series are cmos-based ldo regulators featuring 120ma output. the sc-82ab package, which is compact and easy to mount, is used. standby mode and auto-discharge function are also available (see selection guide). ceramic capacitors can be us ed. features ? supply current (i ss ) typ. 90 a (v in =set v out +1v) ? standby current (i standby ) typ. 0.1 a (same as above, ce="l") ? dropout voltage (v dif ) typ. 0.18v (i out =120ma, v out =2.8v) ? ripple rejection (rr)typ. 75db (v out < = 2.4v) (f=1khz) typ. 70db (v out > = 2.5v) (f=1khz) ? input voltage range (v in ) 2.2v to 6.0v ? output voltage range (v out )1.5v to 4.0v (internally fixed) ? output voltage accuracy 1.5% (2.0v < v out < = 30mv (1.5v < = < = ? temp. coeff. of output voltage typ. 100ppm/ c ? line regulationtyp. 0.02%/v ? fold-back protection circuitcurrent limit typ. 40ma ? packagesc-82ab ? ceramic capacitors can be used. 1 f to 2.2 f or more block diagrams r1141qxx1b r1141qxx1d (without auto-discharge function) (with auto-discharge function) 4 3 2 v out gnd v dd ce + - vref 1 current limit 4 3 2 v out gnd v dd ce + - vref 1 current limit selection guide package quantity per reel part no. sc-82ab 3,000 pcs r1141q . xx . 1 . ? -tr-f . xx . : specify the output voltage within the range 1.5v ( . 15 . ) to 4.0v ( . 40 . ) in 0.1v steps. . ? : select from ( . b . ) without auto-discharge function or ( . d . ) with auto-discharge function. package (top view) t ypical characteristic sc-82ab 1 2 4 3 1 v out 2 gnd 3 ce 4 v dd r1141q281x dropout voltage vs. output current 0.25 0.20 0.15 0.10 0.05 0.00 0 20 40 80 100 120 60 output current i out (ma) dropout voltage v dif (v) 85 c 25 c -40 c applications ? power source for hand-held communication equipment, cameras, and vcrs ? power source for home appliances ? power source for battery-powered equipment
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- 5 % & m f d u s p o j d % f w j d f t $ p n q b o z ricoh presented with the japan management quality award for 1999 . ricoh continually strives to promote customer satisfaction, and shares the achievements of its management quality improvement program with people and society. ricoh awarded iso 14001 certification. the ricoh group was awarded iso 14001 certification, which is an international standard for environmental management systems, at both its domestic and overseas production facilities. our current aim is to obtain iso 14001 certification for all of our business offices. ricoh completed the organization of the lead-free production for all of our products. after apr. 1, 2006, we will ship out the lead free products only. thus, all products that will be shipped from now on comply with rohs directive.
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