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 rohs compliant key features: ? ef ciency to 96% ? 1a output current ? compact sip case ? lm78xx replacement ? wide input range ? short circuit protected ? thermal shutdown ? low noise sr7810 low cost, 1a output non-isolated pol switching regulators output parameter conditions min. typ. max. units output voltage accuracy ?.0 ?.0 % line regulation vin = min to max ?.2 ?.4 % load regulation iout = 10% to 100% ?.4 ?.6 % ripple & noise (20 mhz) 20 35 mv p - p dynamic load stability see note 1 ?00 mv output power protection 120 % thermal shutdown see note 2 150 ? quiescent current see note 3 5 7 ma output current limit 2,000 ma output short circuit continuous (autorecovery) general parameter conditions min. typ. max. units isolation voltage not isolated switching frequency 280 330 450 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 0.45 x 0.35 x 0.69 inches (11.5 x 8.90 x 17.50 mm) case material non-conductive black plastic (ul-94v0) weight 0.13 oz (3.7g) reliability speci? cations parameter conditions min. typ. max. units mtbf mil hdbk 217f, 25?, gnd benign 2.0 mhours series electrical speci? cations speci cations typical @ +25?, nominal input voltage & rated output current, unless otherwise noted. speci cations subject to change without notice.
notes: 1. dynamic load stability is speci ed for output loads from 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 input should not exceed the range given in the model selection chart above. exceeding this limit could damage the unit. notes: 1. c1 is a low esr ceramic capacitor used to minimize noise at the regulator. a tantalum or low esr electrolytic capacitor may also be used. a typical value is 22 ?/50v. c1 should be placed as close to pins 1 and 2 as possible. 2. c2 is optional. a typical value is a 100 ?/25v electrolytic capacitor. model selection guide notes: ? all dimensions are typical in inches (mm) ? tolerance x.xx = ?.01 (?.25) ? pin 1 is marked by a ?ot?or indentation on the side of the unit model number input voltage range (vdc) output ef? ciency (%, typ) voltage (vdc) current (ma, max) min vin max vin SR7810-03W 4.75 - 28.0 3.3 1,000.0 90 83 sr7810-05w 6.5 - 32.0 5.0 1,000.0 93 88 sr7810-06w 9.0 - 32.0 6.5 1,000.0 94 90 sr7810-09w 12.0 - 32.0 9.0 1,000.0 95 92 sr7810-12w 16.0 - 32.0 12.0 1,000.0 96 94 mechanical dimensions pin description 1+vin 2 gnd 3 +vout pin connect. characteristic curves (ef? ciency & ripple) ef ciency vs input voltage (full load) ripple vs input voltage (full load) ef ciency vs load (vin = min) ripple vs load (vin = min) ef ciency vs load (vin = max) ripple vs load (vin = 24v) derating curve ? tolerance ? p in 1 is m o n the si d micropower direct www.micropowerdirect.com 292 page street ste d stoughton, ma 02072 tel: (781) 344-8226 fax: (781) 344-8481 e-mail: sales@micropowerdirect.com typical application circuit
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