key features: ? ef ciency to 96% ? 0.5a output current ? compact smt case ? lm78xx replacement ? wide input range ? adjustable output voltage ? short circuit protected ? thermal shutdown ? low noise ? low low cost lsr7805 low cost, miniature 500 ma surface mount pol switching regulators output parameter conditions min. typ. max. units output voltage accuracy ?.0 ?.0 % output voltage adjustment range contact factory for information line regulation vin = min to max ?.2 ?.5 % load regulation iout = 10% to 100% ?.3 ?.75 % ripple & noise (20 mhz) 10 25 mv p - p thermal shutdown see note 2 160 ? quiescent current, note 3 15 ma temperature coef cient 0.02 %/? maximum capacitive load 1,000 f output current limit 1.8 a short circuit input power 0.5 1.8 w output short circuit continuous (autorecovery) general parameter conditions min. typ. max. units isolation voltage not isolated switching frequency 410 khz environmental parameter conditions min. typ. max. units operating temperature range ambient -40 +25 +85 ? operating temperature range case +100 ? storage temperature range -55 +125 ? lead temperature 1.5 mm from case for 10 sec 300 ? cooling free air convection humidity rh, non-condensing 95 % physical case size 0.60 x 0.476 x 0.285 inches (15.24 x 12.10 x 7.25 mm) case material non-conductive black plastic (ul-94v0) weight 0.08 oz (2.3g) reliability speci? cations parameter conditions min. typ. max. units mtbf mil hdbk 217f, 25?, gnd benign 2.0 mhours series micropower direct 292 page street suite d stoughton, ma 02072 usa t: (781) 344-8226 f: (781) 344-8481 e: sales@micropowerdirect.com w: www.micropowerdirect.com notes: 1. c1 & c2 are low esr ceramic capacitors used to minimize noise at the regulator. a tantalum or low esr electrolytic capacitor may also be used. 2. c1 & c2 are required and should be mounted as close to the regulator pins as possible. c3 is required for optimum performance, use 100 f or more. 3. r1 & r2 are used to adjust the regulator output. for sug- gested values, please contact the factory. model number ceramic capacitors c 1 c 2 lsr7805-03w 10 f/50v 22 f/ 16v lsr7805-05w 10 f/50v 22 f/ 16v LSR7805-09W 10 f/50v 22 f/ 16v lsr7805-12w 10 f/50v 10 f/ 25v lsr7805-15w 10 f/50v 10 f/ 25v component values electrical speci? cations speci cations typical @ +25?, nominal input voltage & rated output current, unless otherwise noted. speci cations subject to change without notice. www.micropowerdirect.com typical application circuits
notes: 1. load regulation is speci ed for an output load change of 10% to 100%. 2. measured at an internal ic junction. 3. quiescent current is speci ed at 0% load for vin = min to max. 4. this regulator is not designed to be used in parallel with another unit to increase output power. 5. the remote on/off control current is typically 2 a. shutdown input current is 30 a max. the on/off shutdown threshold voltage is 1.1v to 1.4v. 6. the input should not exceed the range given in the model selection chart. exceeding this limit could damage the unit. min max on open or 1.5vLSR7805-09W 24 11.0 - 28.0 9.0 3.0 - 11.5 500.0 95 87 lsr7805-12w 24 14.0 - 28.0 12.0 4.5 - 13.5 500.0 95 90 lsr7805-15w 24 17.0 - 28.0 15.0 4.5 - 15.5 500.0 96 92 mechanical dimensions pin function 1 +vin 5 +vout 6 vadj 7 gnd 9 gnd 10 control pin connection characteristic curves (ef? ciency & ripple) ef ciency vs input voltage (full load) ripple vs input voltage (full load) ef ciency vs load (vin = nom) ripple vs load (vin = nom) solder layout so derating curve www.micropowerdirect.com micropower direct we power your success - for less! 292 page street ste d stoughton, ma 02072 tel: (781) 344-8226 fax: (781) 344-8481 e-mail: sales@micropowerdirect.com
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