r1170x series 800ma ldo no.ek-088-091101 cmos ldo regulator the r1170x series are cmos-based ldo regulators featuring 800ma output. the cmos process provides both high output current and low supply current. the dropout voltage is significantly lower than bipo lar regulators. the ce pin can switch the regulator into standby mode. in addition to a fold-back protection circuit built into con ventional ldo regulators, r1170x has a thermal shutdown circuit. ceramic capacitors can be used. features ? supply current (i ss ) typ. 80 a (v in =set v out +1v) ? standby current (i standby ) typ. 0.1 a (v in =6v, in standby) ? dropout voltage (v dif ) typ. 0.12v (i out =300ma, v out =2.8v) ? ripple rejection (rr)typ. 50db (f=1khz) ? input voltage range (v in ) max. 6.0v ? output voltage range (v out )1.5v to 5.0v (internally fixed) ? output voltage accuracy 2% ? temp. coeff. of output voltage typ. 100ppm/ c ? line regulationtyp. 0.05%/v ? fold-back protection circuitcurrent limit typ. 40ma ? thermal shutdown circuit stops at 150 c ? packages hson-6, sot-89-5, hsop-6j ? ceramic capacitors can be used. 10 f or more block diagrams r1170xxx1a r1170xxx1b ( ce pin "l" active) (ce pin "h" active) v dd gnd v out vref current limit thermal shutdown ce v dd gnd v out ce vref current limit thermal shutdown selection guides package quantity per reel part no. hson-6 3,000 pcs r1170d . xx . 1 . ? -tr-f sot-89-5 1,000 pcs r1170h . xx . 1 . ? -t1-f hsop-6j 1,000 pcs r1170s . xx . 1 . ? -e2-f . xx . : specify the output voltage within the range 1.5v ( . 15 . ) to 5.0v ( . 50 . ) in 0.1v steps. . ? : select the polarity of the ce pin from ( . a . ) "l" active or ( . b . ) "h" active. packages (top view) t ypical characteristic hson-6 sot-89-5 hsop-6j 1 3 6 4 2 5 ? 1 3 5 4 2 1 3 6 4 2 5 1 v out ? 1 2 v out ? 1 3 ce or ce 4 gnd 5 v dd ? 1 6 v dd ? 1 1 ce or ce 2 gnd 3 nc 4 v dd 5 v out 1 v out 2 gnd 3 ce or ce 4 nc 5 gnd 6 v dd r1170x301b dropout voltage vs. output current 0.50 0.45 0.20 0.25 0.30 0.35 0.40 0.15 0.10 0.05 0 0 100 200 300 400 500 600 700 800 85 c 25 c -40 c output current i out (ma) dropout voltage v dif (v) ? ) the tab and tab suspension leads on back side are substrate level (gnd). ? 1) the v out pin and v dd pin must be wired each other when it is mounted on board. applications ? power source for hand-held communication equipment, cameras, and vcrs ? power source for home applianc es and digital home appliances ? power source for laptop personal computers ? 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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