1 www.semtech.com ez1587c & ez1587i 3 amp positive voltage regulator power management revision: april 26, 2006 the ez1587 series of high performance positive voltage regulators are designed for use in applications requiring low dropout performance at up to 3a. additionally, the ez1587 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. a variety of options are available for maximum flexibility: the ez1587c is intended for commercial applications and has both fixed and adjustable voltage options; the ez1587i is intended for industrial applications and is adjustable only. all devices are available in the popular to-220 and to-263 packages. ? low dropout voltage: 1.3v max. for ez1587c and 1.4v max. for ez1587i ? 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 (ez1587c) ? line regulation typically 0.015% ? load regulation typically 0.05% ? industrial temperature range (ez1587i) ? to-220 and to-263 packages. available in rohs compliant package ? printer and plotter supplies ? instrumentation ? medical equipment ? microcontroller systems ? telecommunication systems ? motherboards ? switching supply post regulation description features applications fixed voltage regulator adjustable voltage regulator typical application circuit vin > 4.75v vout = 3.45v vout = 3.3v vin > 4.75v u1 ez1587 1 2 3 adj out in tab + c2 10uf tant. min. r1 133 ohm, 1% + c1 10uf tant. u1 ez1587c-3.3 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 ? 2006 semtech corp. www.semtech.com ez1587c & ez1587i 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 0 2 2 - o t 3 6 2 - o t c j 3 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 0 2 2 - o t 3 6 2 - o t a j 0 5 0 6 w / c e g n a r e r u t a r e p m e t t n e i b m a g n i t a r e p o c 7 8 5 1 z e i 7 8 5 1 z e t a 0 7 o t 0 5 8 o t 0 4 - 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 o c 7 8 5 1 z e i 7 8 5 1 z e t j 5 2 1 o t 0 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 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 0v l 5 8 9 . 0 o lv o v l 5 1 0 . 1 o lv x . x - c 7 8 5 1 z e v l 8 9 . 0 o lv l 2 0 . 1 o l 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 11 3 2 . 10 5 2 . 19 6 2 . 1v i 7 8 5 1 z e , c 7 8 5 1 z e 5 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 15 1 0 . 0 2 . 0 % n o i t a l u g e r d a o l ) 1 ( g e r ) d a o l ( v 55 0 . 0 4 . 0 % e g a t l o v t u o p o r d ) 2 ( ) 1 ( x . x - c 7 8 5 1 z e , c 7 8 5 1 z ev d a 0 . 30 2 . 1 5 3 . 1 v i 7 8 5 1 z e 0 2 . 1 0 4 . 1 t i m i l t n e r r u ci l c 1 . 3 5 . 4a unless otherwise specified: adj. v in = 2.75v to 7.0v and adj. i o = 10ma to 3a; fixed v in = 4.75 to 7.0v and fixed i o = 0 ma to 3a. values in bold apply over full operating ambient temperature range. absolute maximum ratings electrical characteristics 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.
3 ? 2006 semtech corp. www.semtech.com ez1587c & ez1587i power management r e t e m a r a pl o b m y sv n i i o n i mp y tx a ms t i n u 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 50 1 3 1 a m t n e i c i f f e o c e r u t a r e p m e tt c 5 0 0 . 0c / % t n e r r u c n i p t s u j d ai j d a 5 5 0 9 a e g n a h c t n e r r u c n i p t s u j d a ? i j d a 2 . 0 5 a y t i l i b a t s e r u t a r e p m e tt s v 5a 5 . 0 5 . 0 % t n e r r u c d a o l m u m i n i m s n o i s r e v e g a t l o v j d a i o v 55 0 1 a m e s i o n t u p t u o s m r ) 3 ( v n 3 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 5a 3 0 6 2 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 10 khz. (4) 120 hz input ripple (c adj for adj = 25f). electrical characteristics (cont) unless otherwise specified: adj. v in = 2.75v to 7.0v and adj. i o = 10ma to 3a; fixed v in = 4.75 to 7.0v and fixed i o = 0 ma to 3a. values in bold apply over full operating ambient temperature range.
4 ? 2006 semtech corp. www.semtech.com ez1587c & ez1587i power management e c i v e d ) 2 ( ) 1 ( e g a k c a p r t . x . x - m c 7 8 5 1 z e r t . m i 7 8 5 1 z e t r t . x . x - m c 7 8 5 1 z e ) 5 ( t r t . m i 7 8 5 1 z e ) 5 ( 3 6 2 - o t ) 3 ( x . x - t c 7 8 5 1 z e t i 7 8 5 1 z e t x . x - t c 7 8 5 1 z e ) 5 ( t t i 7 8 5 1 z e ) 5 ( 0 2 2 - o t ) 4 ( notes: (1) where x.x denotes voltage options (ez1587c only). available voltages are: 1.5v, 1.8v, 2.5v,and 3.3v. leave blank for adjustable version (1.3 to 5.7v). contact factory for additional voltage options. (2) where c and i denote commercial (0c to 70c) and industrial (-40c to 85c) ambient temperature ranges. (3) only available in tape and reel packaging. a reel contains 800 devices. (4) only available in tube packaging. a tube contains 50 devices. (5) this product is rohs compliant. n i pe m a n n i pn o i t c n u f n i p 1t s u j d a d n u o r g e s n o p s e r t n e i s n a r t . s e c i v e d e l b a t s u j d a r o f e g a t l o v e c n e r e f e r e h t f o e d i s e v i t a g e n e h t s i n i p s i h t . d n u o r g o t n i p t s u j d a e h t m o r f r o t i c a p a c s s a p y b l l a m s a g n i d d a y b d e v o r p m i e b n a c d n a , s t r a p e g a t l o v t u p t u o d e x i f r o f n i a h c k c a b d e e f r o t s i s e r l a n r e t n i e h t f o d n e m o t t o b e h t s i n i p s i h t . d n u o r g o t d e t c e n n o c e b d l u o h s 2t u p t u o . b a t e h t o t d e t c e n n o c y l l a c i r t c e l e s i d n a e c i v e d e h t f o t u p t u o r e w o p e h t s i s i h t 3t u p n i . e c i v e d s s a p e h t d n a y r t i u c r i c l o r t n o c e h t h t o b r o f n i p y l p p u s t u p n i e h t s i s i h t pin configurations ordering information pin descriptions block diagram
5 ? 2006 semtech corp. www.semtech.com ez1587c & ez1587i power management outline drawing - to-220 outline drawing - t0-263 h1 d d1 l a2 d2 l1 seating plane 2x e e1 3 x b2 3 x b ? p e1 ccc b a 6.86 .270 .350 8.90 .030 0.76 6.86 5.84 .270 .230 .139 .156 3.53 - 3.96 .140 .027 .057 1.45 0.69 - - - - - - - - - - - - .250 6.35 - - - - - - - - - 0.36 .014 0.38 .015 0.25 .010 3.56 dimensions inches nom e1 l1 aaa ccc bbb ?p q n e1 h1 l e2 e dim b d1 d2 e b2 c d a a2 a1 min millimeters max min max nom .100 bsc .200 bsc 3 .380 .355 .015 3 9.02 2.54 bsc 5.08 bsc .420 9.65 .040 0.38 10.66 1.02 8.38 .330 .100 - .500 .014 - .080 .020 - - - .120 2.54 - 3.05 - .580 .024 12.70 0.36 .190 .115 .055 0.51 2.03 0.61 14.73 - 1.40 4.82 2.92 - - dimensions "d" and "e" do not include mold flash, protrusions or gate burrs. controlling dimensions are in inches. notes: 1. 2. 1.14 .045 .070 1.78 14.22 .650 .560 - 16.51 - .480 12.88 12.19 .507 e e/2 q e2 a a c bbb b a c aaa b a b a1 controlling dimensions are in inches (angles in degrees). dimensions "d" and "e" do not include mold flash, protrusions plane seating 2. 1. notes: aaa b a or gate burrs. b a e1 bxn a1 a l1 d e 01 see detail l c c1 aaa 01 n d1 h l1 e l e1 e c d c1 b1 b a1 a dim millimeters inches dimensions min nom max min max nom 0 e/2 0- 15 - 15 -- h .575 .625 14.61 15.88 - - detail a .100 bsc side view a 2.54 bsc e 123 0 .010 3 - 8 0 0.25 - 3 8 - .270 - .070 - .245 .380 - - - - .015 .326 .045 .045 .000 .020 - - - - - 6.86 - .110 .066 - .420 1.78 - 6.22 9.65 .029 .380 .065 .070 .010 .039 0.38 8.28 1.14 1.14 0.00 0.51 .160 - .190 4.06 - 10.67 - - - - - - 2.79 1.68 - - - - - - 0.74 9.65 1.65 1.78 0.25 0.99 - 4.83 plated copper heat spreader 3x b1 (l1) d1
6 ? 2006 semtech corp. www.semtech.com ez1587c & ez1587i power management land pattern - to-263 y p h x p .100 2.54 x .070 1.78 z .615 15.62 k z g notes: 1. this land pattern is for reference purposes only consult your manufacturing group to ensure your company's manufacturing guidelines are met. dim h g millimeters inches .420 .125 10.67 3.17 dimensions y k .140 .350 3.56 8.89 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
|
