1 www.semtech.com ez1117 0.8 & 1.0 amp positive voltage regulators power management revision: november 5, 2004 the ez1117 series of high performance positive voltage regulators are designed for use in applications requiring low dropout performance at up to 0.8a. additionally, the ez1117 series provides excellent regulation over variations in line, load and temperature. outstanding features include low dropout performance at rated current, fast transient response, internal current limiting and thermal shutdown protection of the output device. the ez1117 series of three terminal regulators offer fixed and adjustable voltage options available in the space saving sot-223 and to-263 packages. ? low dropout performance: 1.2v max. ? full current rating over line and temperature ? fast transient response ? 2% total output regulation over line, load and temperature ? adjust pin current max 90a over temperature ? fixed/adjustable output voltage ? line regulation 0.2% max. ? load regulation 0.4% max. ? sot-223 and to-263 packages ? low voltage microcontrollers ? switching power supply post-regulation description features applications fixed voltage regulator adjustable voltage regulator typical application circuit vin > 4.75v vout = 3.45v vout = 2.5v vin > 4.75v u1 ez1117 1 2 3 adj out in tab + c2 10uf tant. min. r1 133 ohm, 1% + c1 10uf tant. u1 ez1117-2.5 1 2 3 gnd out in tab r2 232 ohm, 1% + c1 10uf tant. + c2 10uf tant. min notes: (1) c1 needed if device is far from filter capacitors (2) c2 minimum value required for stability 2 r i 1 r 2 r 1 v v adj ref out ? + ? ? ? ? ? ? + ? =
2 ? 2004 semtech corp. www.semtech.com ez1117 power management r e t e m a r a pl o b m y sm u m i x a ms t i n u e g a t l o v y l p p u s t u p n iv n i 7v n o i t a p i s s i d r e w o pp d d e t i m i l y l l a n r e t n iw e s a c o t n o i t c n u j e c n a t s i s e r l a m r e h t 3 2 2 - t o s 3 6 2 - o t c j 5 1 3 w / c t n e i b m a o t n o i t c n u j e c n a t s i s e r l a m r e h t 3 2 2 - t o s 3 6 2 - o t a j 6 5 1 0 6 w / c e g n a r e r u t a r e p m e t n o i t c n u j g n i t a r e p ot j 5 2 1 o t 0 4 -c e g n a r e r u t a r e p m e t e g a r o t st g t s 0 5 1 o t 5 6 -c . c e s 0 1 ) g n i r e d l o s ( e r u t a r e p m e t d a e lt d a e l 0 0 3c ) l e d o m y d o b n a m u h ( g n i t a r d s ed s e2v k r e t e m a r a pl o b m y sv n i i o t j ) 5 ( n i mp y tx a ms t i n u e g a t l o v t u p t u o ) 1 ( v o v 5a m oc 5 2% 5 . 1 -v o % 5 . 1 +v ) s n o i s r e v e g a t l o v d e x i f (. t . o% 2 -% 2 + e g a t l o v e c n e r e f e r ) 1 ( v f e r v 5a m 0 1c 5 21 3 2 . 10 5 2 . 19 6 2 . 1v ) n o i s r e v e g a t l o v j d a (. t . o5 2 2 . 15 7 2 . 1 n o i t a l u g e r e n i l ) 1 ( g e r ) e n i l ( a m 0 1. t . o5 3 0 . 02 . 0% n o i t a l u g e r d a o l ) 1 ( g e r ) d a o l ( v 5. t . o2 . 04 . 0% e g a t l o v t u o p o r d ) 2 ( ) 1 ( v d a m 0 0 1 a m 0 0 5 a m 0 0 8 . t . o0 0 . 1 5 0 . 1 0 1 . 1 0 1 . 1 5 1 . 1 0 2 . 1 v t i m i l t n e r r u ci l c . t . o8 . 0a t n e r r u c t n e c s e i u q n o i s r e v e g a t l o v d e x i f i q v 5. t . o0 13 1a m t n e i c i f f e o c e r u t a r e p m e tt c . t . o5 0 0 . 0c / % unless otherwise specified: adj. option: v in = 2.65v to 7.0v and i o = 10ma to i rated . fixed options: i o = 0ma to i rated , v in (2.5v) = 3.9v to 7.0v. absolute maximum ratings electrical characteristics (6) exceeding the specifications below may result in permanent damage to the device, or device malfunction. operation outside of th e parameters specified in the electrical characteristics section is not implied. exposure to absolute maximum rated conditions for extended periods of time may affect device reliability.
3 ? 2004 semtech corp. www.semtech.com ez1117 power management r e t e m a r a pl o b m y sv n i i o t j ) 5 ( n i mp y tx a ms t i n u t n e r r u c n i p t s u j d ai j d a . t . o5 50 9a t n e r r u c n i p t s u j d a e g n a h c ? i j d a . t . o2 . 05a y t i l i b a t s e r u t a r e p m e tt s . t . o5 . 0% t n e r r u c d a o l m u m i n i m n o i s r e v e g a t l o v j d a i o v 5. t . o50 1a m e s i o n t u p t u o s m r ) 3 ( v n c 5 23 0 0 . 0v % o o i t a r n o i t c e j e r e l p p i r ) 4 ( r a v 5i d e t a r . t . o0 62 7b d notes: (1) low duty cycle pulse testing with kelvin connections required. (2) ? v out , ? v ref = 1%. (3) bandwidth of 10 hz to 10khz. (4) 120hz input ripple (c adj for adj = 25f). (5) o.t. = over specified operating junction temperature range. (6) i rated = 800ma. electrical characteristics (cont.) (6) unless otherwise specified: adj. option: v in = 2.65v to 7.0v and i o = 10ma to i rated . fixed options: i o = 0ma to i rated , v in (2.5v) = 3.9v to 7.0v.
4 ? 2004 semtech corp. www.semtech.com ez1117 power management pin configuration ordering information sot-223 to-263 block diagram e c i v e de g a k c a p r t . x . x - t s c 7 1 1 1 z e ) 2 ( 3 2 2 - t o s ) 3 ( t r t . x x - t s c 7 1 1 1 z e ) 4 ( ) 2 ( r t . x . x - m c 7 1 1 1 z e ) 1 ( 3 6 2 - o t ) 3 ( t r t . x x - m c 7 1 1 1 z e ) 4 ( ) 1 ( notes: (1) where x.x (xx) denotes voltage options. available voltage is: 2.5v (25). leave blank for adjustable version (1.3 to 5.7v). contact factory for additional voltage op- tions. (2) where x.x (xx) denotes voltage options. available voltages are: 2.5v (25), 2.85(285), and 3.3v(33). leave blank for adjustable version (1.3 to 5.7v). contact fac- tory for additional voltage options. (3) only available in tape and reel packaging. a reel contains 2500 (sot-223) or 800 (to-263) devices. (4) lead free product. this product is fully weee and rohs compliant.
5 ? 2004 semtech corp. www.semtech.com ez1117 power management outline drawing - to-263 land pattern - to-263
6 ? 2004 semtech corp. www.semtech.com ez1117 power management outline drawing - sot-223 land pattern - sot-223 h c n a r b n a w i a t 0 8 3 3 - 8 4 7 2 - 2 - 6 8 8 : l e t fx a0 9 3 3 - 8 4 7 2 - 2 - 6 8 8 : h b m g d n a l r e z t i w s h c e t m e s h c n a r b n a p a j 0 5 9 0 - 8 0 4 6 - 3 - 1 8 : l e t 1 5 9 0 - 8 0 4 6 - 3 - 1 8 : x a f h c n a r b a e r o k tl e7 7 3 4 - 7 2 5 - 2 - 2 8 : f6 7 3 4 - 7 2 5 - 2 - 2 8 : x a ) . k . u ( d e t i m i l h c e t m e s 0 0 6 - 7 2 5 - 4 9 7 1 - 4 4 : l e t 1 0 6 - 7 2 5 - 4 9 7 1 - 4 4 : x a f e c i f f o i a h g n a h s t0 3 8 0 - 1 9 3 6 - 1 2 - 6 8 : l e 1 3 8 0 - 1 9 3 6 - 1 2 - 6 8 : x a f l r a s e c n a r f h c e t m e s 0 0 - 2 2 - 8 2 - 9 6 1 ) 0 ( - 3 3 : l e t 8 9 - 2 1 - 8 2 - 9 6 1 ) 0 ( - 3 3 : x a f f o y r a i d i s b u s d e n w o - y l l o h w a s i g a l a n o i t a n r e t n i h c e t m e s . a . s . u e h t n i s r e t r a u q d a e h s t i s a h h c i h w , n o i t a r o p r o c h c e t m e s h b m g y n a m r e g h c e t m e s 3 2 1 - 0 4 1 - 1 6 1 8 ) 0 ( - 9 4 : l e t 4 2 1 - 0 4 1 - 1 6 1 8 ) 0 ( - 9 4 : x a f contact information for semtech international ag
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