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4 to 12 v, 0.5 a low dropout voltage regulator with on/off function overview the l88ms00t series has an on-chip on/off function to maximize equipment power saving effectiveness. because it can operate with a low input-output voltage difference, it contributes to smaller and more efficient set power supplies, optimum for audio-visual and office automation equipment. functions . output voltage l88ms04t: 4 v l88ms05t: 5 v l88ms06t: 6 v l88ms08t: 8 v l88ms09t: 9 v l88ms12t: 12 v . on/off control of output voltage by strobe pin (active low) . 500 ma output current features . low minimum input-output voltage differential (0.4 v typ) enables to save energy and miniaturize transformer size. . quiescent current is low with output off (l88ms05t/i q off =40 a typ, except i stb ). . set size can be miniaturized with compact tp-5h power package. . surface mounting on board permits allowable power dissipation to be raised. . enhanced mount flexibility with range of formed products. . on-chip protective circuitry (fold back short circuit, thermal over load). . external noise suppression pin provided. package dimensions unit : mm 3103-tp-5h [l88ms00t series] sanyo : tp-5h pin assignment top view specifications maximum ratings at ta = 25c (common to l88ms00t series) parameter symbol conditions ratings unit input voltage v in max 18 v strobe pin input voltage v st max v in max v allowable power dissipation pd max ta % 25c, no heat sink 1 w tc = 25c, with infinite heat sink 6.25 w thermal resistance (junction-atmosphere) j-a 125 c/w thermal resistance (junction-to-case) j-c 20 c/w operating temperature topr ?20 to +85 c storage temperature tstg ?55 to +150 c ordering number: en4186b monolithic linear ic l88ms00t series sanyo electric co.,ltd. semiconductor bussiness headquarters tokyo office tokyo bldg., 1-10, 1 chome, ueno, taito-ku, tokyo, 110 japan 31097ha(ii)/9302ts no.4186-1/11
[l88ms04t] operating conditions at ta = 25 c parameter symbol conditions ratings unit input voltage v in 4.7to17 v output current l out 0to500 ma output on control voltage v stl ?0.3 to +0.8 v output off control voltage v sth 2.0tov in v operating characteristics at tj = 25 c, v in =7v,i o = 500 ma, c out = 100 f, c in , cn = 1 f, see specified test circuit. parameter symbol conditions min typ max unit [output on, v st =??l??] output voltage v out 3.88 4.0 4.12 v dropout voltage v drop1 0.4 0.6 v v drop2 l o = 150 ma 0.2 0.3 v line regulation v oln 4.7 v % v in % 17 v 10 50 mv load regulation v old 5ma % i out % 500 ma 24 80 mv peak output current l op 600 900 ma output short-circuit current l osc 100 300 ma quiescent current i q1 i out =0 1.9 5.0 ma i q2 24 50 ma output noise voltage v no 10 hz % f % 100 khz 30 vrms temperature coefficient of output voltage v out / tj tj = 25 to 125 c 0.4 mv/c ripple rejection rrej f = 120 hz, 5 v % v in % 17 v 72 db output on control voltage v stl 0.8 v [output off, v st = ??h?? ] low output voltage v o off v st =5v 20 200 mv static current i q off v st = 5 v, except i stb 35 70 a output off control voltage v sth 2.0 v in v [l88ms05t] operating conditions at ta = 25 c parameter symbol conditions ratings unit input voltage v in 5.8to17 v output current l out 0to500 ma output on control voltage v stl ?0.3 to +0.8 v output off control voltage v sth 2.0tov in v l88ms00t series no.4186-2/11
operating characteristics at tj = 25 c, v in =8v,i o = 500 ma, c out = 100 f, c in ,cn=1 f, see specified test circuit. parameter symbol conditions min typ max unit [output on, v st =??l??] output voltage v out 4.85 5.0 5.15 v dropout voltage v drop1 0.4 0.6 v v drop2 l o = 150 ma 0.2 0.3 v line regulation v oln 5.8 v % v in % 17 v 10 50 mv load regulation v old 5ma % i out % 500 ma 30 100 mv peak output current l op 600 900 ma output short-circuit current l osc 100 300 ma quiescent current i q1 i out =0 2.0 5.0 ma i q2 24 50 ma output noise voltage v no 10 hz % f % 100 khz 40 vrms temperature coefficient of output voltage v out / tj tj = 25 to 125 c 0.5 mv/c ripple rejection rrej f = 120 hz, 6 v % v in % 17 v 74 db output on control voltage v stl 0.8 v [output off, v st = ??h?? ] low output voltage v o off v st =5v 20 200 mv static current i q off v st = 5 v, except i stb 40 80 a output off control voltage v sth 2.0 v in v [l88ms06t] operating conditions at ta = 25 c parameter symbol conditions ratings unit input voltage v in 6.8to17 v output current l out 0to500 ma output on control voltage v stl ?0.3 to +0.8 v output off control voltage v sth 2.0tov in v operating characteristics at tj = 25 c, v in =9v,i o = 500 ma, c out = 100 f, c in ,cn=1 f, see specified test circuit. parameter symbol conditions min typ max unit [output on, v st =??l??] output voltage v out 5.82 6.0 6.18 v dropout voltage v drop1 0.4 0.6 v v drop2 l o = 150 ma 0.2 0.3 v line regulation v oln 6.8 v % v in % 17 v 10 50 mv load regulation v old 5ma % i out % 500 ma 36 120 mv peak output current l op 600 900 ma output short-circuit current l osc 100 300 ma quiescent current i q1 i out =0 2.1 5.0 ma i q2 24 50 ma output noise voltage v no 10 hz % f % 100 khz 40 vrms temperature coefficient of output voltage v out / tj tj = 25 to 125 c 0.6 mv/c ripple rejection rrej f = 120 hz, 7 v % v in % 17 v 76 db output on control voltage v stl 0.8 v [output off, v st = ??h?? ] low output voltage v o off v st =5v 20 200 mv static current i q off v st = 5 v, except i stb 60 120 a output off control voltage v sth 2.0 v in v l88ms00t series no.4186-3/11
[l88ms08t] operating conditions at ta = 25 c parameter symbol conditions ratings unit input voltage v in 8.8to17 v output current l out 0to500 ma output on control voltage v stl ?0.3 to +0.8 v output off control voltage v sth 2.0tov in v operating characteristics at tj = 25 c, v in =11v,i o = 500 ma, c out = 100 f, c in ,cn=1 f, see specified test circuit. parameter symbol conditions min typ max unit [output on, v st =??l??] output voltage v out 7.76 8.0 8.24 v dropout voltage v drop1 0.4 0.6 v v drop2 l o = 150 ma 0.2 0.3 v line regulation v oln 8.8 v % v in % 17 v 10 50 mv load regulation v old 5ma % i out % 500 ma 48 160 mv peak output current l op 600 900 ma output short-circuit current l osc 100 300 ma quiescent current i q1 i out =0 2.2 5.0 ma i q2 24 50 ma output noise voltage v no 10 hz % f % 100 khz 40 vrms temperature coefficient of output voltage v out / tj tj = 25 to 125 c 0.8 mv/c ripple rejection rrej f = 120 hz, 9 v % v in % 17 v 76 db output on control voltage v stl 0.8 v [output off, v st = ??h?? ] low output voltage v o off v st =5v 20 200 mv static current i q off v st = 5 v, except i stb 150 300 a output off control voltage v sth 2.0 v in v [l88ms09t] operating conditions at ta = 25 c parameter symbol conditions ratings unit input voltage v in 9.9to17 v output current l out 0to500 ma output on control voltage v stl ?0.3 to +0.8 v output off control voltage v sth 2.0tov in v l88ms00t series no.4186-4/11
operating characteristics at tj = 25 c, v in =12v,i o = 500 ma, c out = 100 f, c in ,cn=1 f, see specified test circuit. parameter symbol conditions min typ max unit [output on, v st =??l??] output voltage v out 8.73 9.0 9.27 v dropout voltage v drop1 0.4 0.6 v v drop2 l o = 150 ma 0.2 0.3 v line regulation v oln 9.9 v % v in % 17 v 10 50 mv load regulation v old 5ma % i out % 500 ma 54 180 mv peak output current l op 600 900 ma output short-circuit current l osc 100 300 ma quiescent current i q1 i out =0 2.3 5.0 ma i q2 24 50 ma output noise voltage v no 10 hz % f % 100 khz 40 vrms temperature coefficient of output voltage v out / tj tj =25 to 125 c 0.9 mv/c ripple rejection rrej f = 120 hz, 10 v % v in % 17 v 76 db output on control voltage v stl 0.8 v [output off, v st = ??h?? ] low output voltage v o off v st =5v 20 200 mv static current i q off v st = 5 v, except i stb 200 400 a output off control voltage v sth 2.0 v in v [l88ms12t] operating conditions at ta = 25 c parameter symbol conditions ratings unit input voltage v in 13 to 17 v output current l out 0to500 ma output on control voltage v stl ?0.3 to +0.8 v output off control voltage v sth 2.0tov in v operating characteristics at tj = 25 c, v in =15v,i o = 500 ma, c out = 100 f, c in ,cn=1 f, see specified test circuit. parameter symbol conditions min typ max unit [output on, v st =??l??] output voltage v out 11.64 12.0 12.36 v dropout voltage v drop1 0.4 0.6 v v drop2 l o = 150 ma 0.2 0.3 v line regulation v oln 13 v % v in % 17 v 10 50 mv load regulation v old 5ma % i out % 500 ma 70 240 mv peak output current l op 600 900 ma output short-circuit current l osc 100 300 ma quiescent current i q1 i out =0 2.6 5.0 ma i q2 24 50 ma output noise voltage v no 10 hz % f % 100 khz 40 vrms temperature coefficient of output voltage v out / tj tj = 25 to 125 c 1.2 mv/c ripple rejection rrej f = 120 hz, 13 v % v in % 17 v 76 db output on control voltage v stl 0.8 v [output off, v st = ??h?? ] low output voltage v o off v st =5v 20 200 mv static current v q off v st = 5 v, except i stb 500 1000 a output off control voltage v sth 2.0 v in v l88ms00t series no.4186-5/11
equivalent circuit block diagram test circuit (common to l88ms00t series) notes: 1. because the output capacitor c out is set at over 100 f to prevent oscillation at low temperatures, a capacitor that exhibits little change in capacity with temperature variations should be used (such as a tantalum capacitor). 2. adding capacitor cn enables external noise suppression and ripple rejection to be improved. however, attention should be given to system stability (phase margin). 3. to ensure operational stability, c in ,c out , and cn should be placed as close to the ic as possible. 4. when the strobe (stb) pin is open, output is turned on by internal bias. when the strobe function is not used, the stb pin should be connected to gnd to complete strobe operation. 5. when v in is minus (?) and gnd is plus (+) (reversed connection), excessive current flow will occur. start-up circuit reference voltage error amp thermal protector short circuit protector on/off control l88ms00t l88ms00t series no.4186-6/11
function table on/off control input equivalent circuit sample application circuit adjustment of output voltage v out (1) reducing v out v out can be lowered by externally connecting a resistor r a between the cn and v out pins. (2) increasing v out v out can be raised by externally connecting a resistor r b between the cn and gnd pins. the allowable power dissipation is 1.0 w (ta = 25c) with no fin attached, but when mounted on a hybrid ic board or printed circuit board, high allowable power dissipation is achieved, despite the compact package. the graph below depicts the relationship between the copper-clad area and allowable power dissipation when mounted on a glass epoxy board (50 50 0.8 tmm 3 ) with a copper thickness of 18 m. control signal v stb v out lh hl pdmax?ta common for l88ms00t series with infinite heat sink mounted on copper-clad area of 2,000 mm 2 mounted on copper-clad area 740 mm 2 mounted on copper-clad area 180 mm 2 mounted on copper-clad area 36 mm 2 no heat sink ambient temperature, ta ? c allowable power dissipation, pd max ? w l88ms00t series no.4186-7/11
* pd is the value for when the solder on the surface of the ic heat sink has melted completely and the surface mount is horizontal. * please be advised that the flow solder application system (full-heat method) cannot be recommended. lead formings pdmax?s common for l88ms00t series allowable power dissipation, pd max ? w copper-clad area, s ? mm 2 ma forming lr forming fa forming v o ?v in output voltage, v o ?v v o ?v in output voltage, v o ?v input voltage, v in ?v input voltage, v in ?v l88ms00t series no.4186-8/11
output voltage, v o ?v v o ?v in input voltage, v in ?v dropout voltage, v drop ?v v drop ?i o common for l88ms00t series output current, i o ?a v o ?i o output voltage, v o ?v v o ?i o output voltage, v o ?v output current, i o ?a output current, i o ?a output voltage, v o ?v v o ?v st strobe voltage, v st ?v output off control voltage, v sth ?v output on control voltage, v stl ?v v sth ,v stl ?ta ambient temperature, ta ? c common for l88ms00t series quiescent current, i q ?ma i q ?v in input voltage, v in ?v quiescent current, i q ?ma i q ?v in input voltage, v in ?v l88ms00t series no.4186-9/11
quiescent current, i q ?ma output current, i o ?a quiescent current during strobe, i q off ?ma (except i st ) input voltage, v in ?v i q ?i o i q off (st on) ?v in output voltage, v o ?v ambient temperature, ta ? c quiescent current, i q ?ma i q ?ta ambient temperature, ta ? c v o ?ta peak output current, i op ?a output short-circuit current, i osc ?a i op ,i osc ?ta common for l88ms00t series ambient temperature, ta ? c quiescent current during strobe, i q off ?ma i q off (st on) ?ta (except i st ) ambient temperature, ta ? c rrej ? f ripple rejection, rrej ? db frequency, f ? hz l88ms00t series no.4186-10/11
no products described or contained herein are intended for use in surgical implants, life-support systems, aerospace equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of which may directly or indirectly cause injury, death or property loss. anyone purchasing any products described or contained herein for an above-mentioned use shall: 1 accept full responsibility and indemnify and defend sanyo electric co., ltd., its affiliates, subsidiaries and distributors and all their officers and employees, jointly and severally, against any and all claims and litigation and all damages, cost and expenses associated with such use: 2 not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on sanyo electric co., ltd., its affiliates, subsidiaries and distributors or any of their officers and employees jointly or severally. information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume production. sanyo believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties. this catalog provides information as of march, 1997. specifications and information herein are subject to change without notice. l88ms00t series no.4186-11/11

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