KA78M05 / lm78m05 / mc78m05 ? 3-termina l 0.5 a positive voltage regulator ? 2001 fairchild semiconductor corporation www.fairchildsemi.com KA78M05 / lm78m05 / mc78m05 rev. 1.1.0 1 august 2013 KA78M05 / lm78m05 / mc78m05 3-terminal 0.5 a positive voltage regulator features ? output current up to 0.5 a ? output voltages of 5 v ? thermal overload protection ? short-circuit protection ? output transistor safe operating area (soa) protection ordering information (1) note: 1. refer to below figure for tm / tf suffix of dpak packing option. product number package packing me thod operating temperature KA78M05tu to-220 (dual gauge) rail 0 to +125 c KA78M05rtm d-pak tape and reel mc78m05cdtx lm78m05ct to-220 (single gauge) rail description the KA78M05 / lm78m05 / mc78m05 series of three- terminal positive regulators is available in the to-220 / d- pak packages, making it useful in a wide range of appli- cations. to-220 d-pak 1. input 2. gnd 3. output 1 1 gnd gnd
KA78M05 / lm78m05 / mc78m05 ? 3-termina l 0.5 a positive voltage regulator ? 2001 fairchild semiconductor corporation www.fairchildsemi.com KA78M05 / lm78m05 / mc78m05 rev. 1.1.0 2 block diagram figure 1. block diagram absolute maximum ratings stresses exceeding the absolute maximum ratings may damage the device. the device may not function or be opera- ble above the recommended operating conditions and stressing the parts to these levels is not recommended. in addi- tion, extended exposure to stresses above the recommended operating conditions may affect device reliability. the absolute maximum ratings are stress ratings only. notes: 2. thermal resistance test board. size: 76.2 mm x 114.3 mm x 1.6 mm (1s0p) jedec standard: jesd51-3, jesd51-7 3. assume no ambient airflow. symbol parameter value unit v i input voltage (for v o = 5 v) 35 v r jc thermal resistance, junction-case (2) to-220 (t c = +25 c) 2.5 c/w r ja thermal resistance, junction-air (2, 3) to-220 (t a = +25 c) 66 c/w d-pak (t a = +25 c) 92 t opr operating junction temperature range 0 to +125 c t j(max) maximum junction temperature range 150 c t stg storage temperature range -65 to +150 c output 3 r1 r2 gnd 2 1 input series pass element soa protection current generator starting circuit reference voltage error amplifier thermal protection
KA78M05 / lm78m05 / mc78m05 ? 3-termina l 0.5 a positive voltage regulator ? 2001 fairchild semiconductor corporation www.fairchildsemi.com KA78M05 / lm78m05 / mc78m05 rev. 1.1.0 3 electrical characteristics refer to the test circuits, 0 < t j < +125 c, i o = 350 ma, v i = 10 v, c i = 0.33 f, c o = 0.1 f unless otherwise specified. note: 4. load and line regulation are specified at constant junction temperature. change in v o due to heating effects must be taken into account separately. pulse testing with low duty is used. symbol parameter conditions min. typ. max. unit v o output voltage t j = +25 c 4.8 5.0 5.2 v i o = 5 ma to 350 ma, v i = 7 v to 20 v 4.75 5.00 5.25 v o line regulation (4) i o = 200 ma t j = +25 c v i = 7 v to 25 v 100 mv v i = 8 v to 25 v 50 v o load regulation (4) i o = 5 ma to 0.5 a, t j = +25 c 100 mv i o = 5 ma to 200 ma, t j = +25 c50 i q quiescent current t j = +25 c4.06.0ma i q quiescent current change i o = 5 ma to 350 ma 0.5 ma i o = 200 ma, v i = 8 v to 25 v 0.8 v/ t output voltage drift i o = 5 ma t j = 0 to +125 c -0.5 mv/ c v n output noise voltage f = 10 hz to 100 khz 40 v/vo rr ripple rejection f = 120 hz, i o = 300 ma v i = 8 v to 18 v, t j = +25 c 80 db v d dropout voltage t j = +25 c, i o = 500 ma 2 v i sc short-circuit current t j = +25 c, v i = 35 v 300 ma i pk peak current t j = +25 c700ma
KA78M05 / lm78m05 / mc78m05 ? 3-termina l 0.5 a positive voltage regulator ? 2001 fairchild semiconductor corporation www.fairchildsemi.com KA78M05 / lm78m05 / mc78m05 rev. 1.1.0 4 typical applications figure 2. fixed-output regulator figure 3. constant-current regulator notes: 5. c i is required if the regulator is located an appreciable distance from the power supply filter. 6. although no output capacitor is needed for stability, it does improve transient response. 0.1 f c o c i 0.3 f v o v i 1 3 2 KA78M05 lm78m05 mc78m05 0.1 f c o c i 0.33 f i o v i 1 3 2 v xx i o r 1 i o = r 1 +i o vxx KA78M05 lm78m05 mc78m05
KA78M05 / lm78m05 / mc78m05 ? 3-termina l 0.5 a positive voltage regulator ? 2001 fairchild semiconductor corporation www.fairchildsemi.com KA78M05 / lm78m05 / mc78m05 rev. 1.1.0 5 figure 4. circuit for increasing output voltage figure 5. adjustable output regulator (7 to 30 v) figure 6. 0.5 to 10 v regulator 0.1 f c o c i 0.33 f i o v i 1 3 2 v xx v o r 1 r 2 i r1 5i o v o = v xx (1+r 2 /r 1 ) +i o r 2 KA78M05 lm78m05 mc78m05 0.1 f c o c i 0.33 f v o v i 1 3 2 10 k 3 2 4 7 6 lm741 KA78M05 lm78m05 mc78m05 0.1 f c2 c1 0.33 f v o v i 1 3 2 10 k 3 2 4 7 6 lm741 r3 r1 v xx r4 r5 910 9.1 k 13 v < v i < 25 v -7 v < -v i < 17 v _ + v o = v xx r 1 r 4 KA78M05 lm78m05 mc78m05
KA78M05 / lm78m05 / mc78m05 ? 3-termina l 0.5 a positive voltage regulator ? 2001 fairchild semiconductor corporation www.fairchildsemi.com KA78M05 / lm78m05 / mc78m05 rev. 1.1.0 6 physical dimensions figure 7. to-220, molded, 3-lead, jedec variation ab (active) package drawings are provided as a service to customers considering fairchild components. drawings may change in any manner without notice. please note the revision and/or date on the drawing and contact a fairchild semiconductor representative to ver ify or obtain the most recent revision. package specifications do not expand the terms of fairchild?s worldwide terms and conditions, specifically the warranty therein, which covers fairchild products. always visit fairchild semiconductor?s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/dwg/to/to220b03.pdf . for current tape and reel specifications, visit fairchild semiconductor?s online packaging area: http://www.fairchildsemi.com/packing_dwg/pkg-to220b03_tc.pdf . to-220 (single gauge)
KA78M05 / lm78m05 / mc78m05 ? 3-termina l 0.5 a positive voltage regulator ? 2001 fairchild semiconductor corporation www.fairchildsemi.com KA78M05 / lm78m05 / mc78m05 rev. 1.1.0 7 physical dimensions (continued) figure 8. to220, molded, 3-lead, non-jedec variation ab [dual guage] package drawings are provided as a service to customers considering fairchild components. drawings may change in any manner without notice. please note the revision and/or date on the drawing and contact a fairchild semiconductor representative to ver ify or obtain the most recent revision. package specifications do not expand the terms of fairchild?s worldwide terms and conditions, specifically the warranty therein, which covers fairchild products. always visit fairchild semiconductor?s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/dwg/to/to220y03.pdf . for current tape and reel specifications, visit fairchild semiconductor?s online packaging area: http://www.fairchildsemi.com/packing_dwg/pkg-to220y03.pdf . to-220 (dual gauge)
KA78M05 / lm78m05 / mc78m05 ? 3-termina l 0.5 a positive voltage regulator ? 2001 fairchild semiconductor corporation www.fairchildsemi.com KA78M05 / lm78m05 / mc78m05 rev. 1.1.0 8 physical dimensions (continued) figure 9. 3-lead, to-252, jedec to -252 var. ab, surface mount (dpak) package drawings are provided as a service to customers considering fairchild components. drawings may change in any manner without notice. please note the revision and/or date on the drawing and contact a fairchild semiconductor representative to ver ify or obtain the most recent revision. package specifications do not expand the terms of fairchild?s worldwide terms and conditions, specifically the warranty therein, which covers fairchild products. always visit fairchild semiconductor?s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/dwg/to/to252d03.pdf . for current tape and reel specifications, visit fairchild semiconductor?s online packaging area: http://www.fairchildsemi.com/packing_dwg/pkg-to252d03.pdf . d-pak
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