sg78xxa/78xx p roduct d atasheet microsemi analog mixed signal group 11861 western avenue, garden grove, ca. 92841, 714-898-8121, fax: 714-893-2570 page 1 www. microsemi . com copyright ? 1997 rev. 1.5, 2010-07-13 tm ? positive fixed voltage regulator description the sg78xxa/sg78xx series of positive regulators offer self contained, fixed-voltage capability with up to 1.5a of load current and input voltage up to 50v (sg78xxa series only). these units feature a unique on-chip trimming system to set the output voltages to within 1.5% of nominal on the sg78xxa series, 2.0% on the sg78xx series. the sg78xxa versions also offer much improved line and load regulation characteristics. utilizing an improved bandgap reference design, problems have been eliminated that are normally associated with the zener diode references, such as drift in output voltage and large changes in the line and load regulation. all protective features of thermal shutdown, current limit ing, and safe-area control have been designed into these units and since these regulators require only a small output capacitor for satisfactory performance, ease of application is assured. although designed as fixed-voltage regulators, the output voltage can be increased through the use of a simple voltage divider. the low quiescent drain current of the device insures good regulation when this method is used. product is available in hermetically sealed to-257 (both case grounded ?g? and isolated ?ig?), to-3, to-39 and lcc packages. important: for the most current data, consult microsemi ?s website: http://www.microsemi.com key features ? output voltage set internally to 1.5% on sg78xxa ? input voltage range to 50v max. on sg78xxa ? two volt input-output differential ? excellent line and load regulation ? foldback current limiting ? thermal overload protection ? voltages available: 5v, 12v, 15v ? contact factory for other voltage options ? available in surface mount package high reliability features - sg78xxa/78xx ? available to mil-std ? 883, ? 1.2.1 ? mil-m38510/10702bxa - jan7805t ? mil-m38510/10703bxa - jan7812t ? mil-m38510/10704bxa - jan7815t ? mil-m38510/10706bya - jan7805k ? mil-m38510/10707bya - jan7812k ? mil-m38510/10708bya - jan7815k ? radiation data available ? msc-amsg level "s" processing available ? available to dscc ? standard microcircuit drawing (smd) product highlight schematic diagram * * for normal operation the (v os ) sense pin must be externally connected to the load. s s g g 7 7 8 8 x x x x
sg78xxa/78xx p roduct d atasheet microsemi analog mixed signal group 11861 western avenue, garden grove, ca. 92841, 714-898-8121, fax: 714-893-2570 page 2 www. microsemi . com copyright ? 1997 rev. 1.5, 2010-07-13 tm ? positive fixed voltage regulator absolute maximum ratings device output voltage input voltage input voltage (transient)(note 3) input voltage differential (output shorted to ground) 5v 35v 50v 35v 12v 35v 50v 35v 15v 35v 50v 35v operating juncti on temperature ................................................................................................ ......................................................... 150c storage temper ature ra nge ..................................................................................................... ............................................ -65 c to 150 c lead temperature (sol dering 10 seconds ) ....................................................................................... ................................................... 300 c note: exceeding these ratings could cause dama ge to the device. all voltages are with respect to ground. currents are posit ive into, negative out of specified terminal . note 3: operation at high input voltages is dependent upon load current. when load current is less than 5ma, output will rise out of regulation as input- output differential increases beyond 30v. note also from figure 1, that maximum load current is reduced at high voltages. the 50v input rating of the sg78xxa series refers to ability to withstand high line or tran sient conditions without damage. since the regulator?s maximum current capability is reduced, the output may fall out of regulation at high input voltages under nominal loading. thermal data k to-3 3-terminal metal ca n (two pins and case) thermal resistance - junction to c ase , jc 3.0 c/w thermal resistance - junction to a mbient , j a 35 c/w t to-39 3-pin metal can thermal resistance - junction to c ase , jc 15 c/w thermal resistance - junction to a mbient , j a 120 c/w g to-257 3-pin hermetic thermal resistance - junction to c ase , jc 3.5 c/w thermal resistance - junction to a mbient , j a 42 c/w ig to-257 3-pin hermetic (isolated) thermal resistance - junction to c ase , jc 4.0 c/w thermal resistance - junction to a mbient , j a 42 c/w l leadless chip carrier 20-pin ceramic thermal resistance - junction to c ase , jc 35 c/w thermal resistance - junction to a mbient , j a 120 c/w junction temperature calculation: t j = t a + (p d x ja ). the j a numbers are guidelines for the thermal perf ormance of the device/pc-board system. a ll of the above assume no ambient airflow. p p a a c c k k a a g g e e d d a a t t a a
sg78xxa/78xx p roduct d atasheet microsemi analog mixed signal group 11861 western avenue, garden grove, ca. 92841, 714-898-8121, fax: 714-893-2570 page 3 www. microsemi . com copyright ? 1997 rev. 1.5, 2010-07-13 tm ? positive fixed voltage regulator characteristic curves figure 1 ? peak output current vs. input ? output differential figure 2 ? minimum input ? output voltage vs. load current figure 3 ? ripple rejection vs. frequency figure 4 ? temperature coefficient of output voltage g g r r a a p p h h s s
sg78xxa/78xx p roduct d atasheet microsemi analog mixed signal group 11861 western avenue, garden grove, ca. 92841, 714-898-8121, fax: 714-893-2570 page 4 www. microsemi . com copyright ? 1997 rev. 1.5, 2010-07-13 tm ? positive fixed voltage regulator applications figure 5 ? fixed output regulator figure 6 ? circuit for increasing output voltage figure 7 ? high output current, short circuit protected figure 8 ? adjustable output regulator, 7v to 30v recommended operating conditions parameter sg78xx / 78xxa units min typ max operating junction temperature range (note 2) 55 150 c note 2: range over which the device is functional. a a p p p p l l i i c c a a t t i i o o n n s s
sg78xxa/78xx p roduct d atasheet microsemi analog mixed signal group 11861 western avenue, garden grove, ca. 92841, 714-898-8121, fax: 714-893-2570 page 5 www. microsemi . com copyright ? 1997 rev. 1.5, 2010-07-13 tm ? positive fixed voltage regulator electrical characteristics unless otherwise specified, these specifi cations apply over the oper ating ambient temperatures for sg7805a / sg7805 with -55c < t a < 125c, v in = 10v, i o = 500ma for the k, g and ig ? power packages, i o = 100ma for the t and l packages, c in = 0.33f, and c out = 0.1f. low duty cycle pulse te sting techniques are used which maintains junction and case temperatures equal to the ambient temperature. parameter test conditions sg7805a sg7805 units min typ max min typ max output voltage t j = 25c 4.92 5.00 5.08 4.80 5.00 5.20 v line regulation (note 1) v in = 7.5v to 20v, t j = 25c 5 25 5 25 mv v in = 8v to 12v, t j = 25c 2 12 2 25 mv load regulation (note 1) power pkgs: i o = 5ma to 1.5a, t j = 25c 15 50 15 50 mv i o = 250ma to 750ma, t j = 25c 5 25 5 25 mv t ? pkg: i o = 5ma to 500ma, t j = 250c 5 25 20 25 mv total output voltage vin = 8v to 20v tolerance power pkgs: i o = 5ma to 1.0a, p < 20w 4.85 5.00 5.15 4.65 5.00 5.35 v t ? pkg: i o =5ma to 500ma, p < 20w 4.85 5.00 5.15 4.65 5.00 5.35 v quiescent current over temperature range 7 7 ma t j = 25c 4 6 4 6 ma quiescent current change with line: v in = 8v to 25v 0.8 0.8 ma with load: i o = 5ma to 1.0a (power pkgs.) 0.5 0.5 ma i o = 5ma to 500ma (t) 0.5 0.5 ma dropout voltage ? v o = 100mv, t j = 25c power pkgs: i o = 1.0a, t-pkg: i o = 500ma 2 2.5 2 2.5 v peak output current power pkgs: v in = 10v, t j = 25c 1.5 2.0 3.3 1.5 2.0 3.3 a t ? pkg: v in = 10v, t j = 25c 0.5 1.0 2.0 0.5 1.0 2.0 a short circuit current power pkgs: v in = 35v, t j = 25c 1.2 1.2 a t ? pkg: v in = 35v, t j = 25c 0.7 0.7 a ripple rejection ? v in = 10v, f = 120hz, t j = 25c 68 68 db output noise voltage (rms) f = 10hz to 100khz (note 2) 40 40 v/v long term stability 1000 hours @ t j = 125c 20 20 mv thermal shutdown i o = 5ma 175 175 c note 1: all regulation tests are made at constant junction temperature with low duty cycle testing. 2: this test is guaranteed but is not tested in production. e e l l e e c c t t r r i i c c a a l l s s
sg78xxa/78xx p roduct d atasheet microsemi analog mixed signal group 11861 western avenue, garden grove, ca. 92841, 714-898-8121, fax: 714-893-2570 page 6 www. microsemi . com copyright ? 1997 rev. 1.5, 2010-07-13 tm ? positive fixed voltage regulator electrical characteristics unless otherwise specified, these specifi cations apply over the oper ating ambient temperatures for sg7812a / sg7812 with -55c < t a < 125c, v in = 19v, i o = 500ma for the k, g and ig ? power packages, i o = 100ma for the t and l packages, c in = 0.33f, and c out = 0.1f. low duty cycle pulse te sting techniques are used which maintains junction and case temperatures equal to the ambient temperature. parameter test conditions sg7812a sg7812 units min typ max min typ max output voltage t j = 25c 11.8 12.0 12.2 11.5 12.0 12.5 v line regulation (note 1) v in = 14.5v to 30v, t j = 25c 12 60 12 120 mv v in = 16v to 22v, t j = 25c 6 30 6 60 mv load regulation (note 1) power pkgs: i o = 5ma to 1.5a, t j = 25c 28 80 28 120 mv i o = 250ma to 750ma, t j = 25c 10 40 10 60 mv t ? pkg: i o = 5ma to 500ma, t j = 25c 10 40 10 60 mv total output voltage v in = 15.5v to 27v tolerance power pkgs: i o = 5ma to 1.0a, p < 20w 11.7 12.0 12.3 11.4 12.0 12.6 v t ? pkg: i o = 5ma to 500ma, p < 2w 11.7 12.0 12.3 11.4 12.0 12.6 v quiescent current over temperature range 7 7 ma t j = 25c 4 6 4 6 ma quiescent current change with line: v in = 15v to 30v 0.8 0.8 ma with load: i o = 5ma to 1.0a (power pkgs.) 0.5 0.5 ma i o = 5ma to 500ma (t) 0.5 0.5 ma dropout voltage ? v o = 100mv, tj = 25c power pkgs: i o = 1.0a, t ? pkg: i o = 500ma 2 2.5 2 2.5 v peak output current power pkgs: t j = 25c 1.5 2.0 3.3 1.5 2.0 3.3 a t ? pkg: t j = 25c 0.5 1.0 1.7 0.5 1.0 1.7 a short circuit current power pkgs: v in = 35v, t j = 25c 1.2 1.2 a t ? pkg: v in = 35v, t j = 25c 0.7 0.7 a ripple rejection ? v in = 10v, f = 120hz, t j = 25c 61 61 db output noise voltage (rms) f = 10hz to 100khz (note 2) 40 40 v/v long term stability 1000 hours @ t j = 125c 48 48 mv thermal shutdown i o = 5ma 175 175 c note 1: all regulation tests are made at constant junction temperature with low duty cycle testing. 2: this test is guaranteed but is not tested in production. e e l l e e c c t t r r i i c c a a l l s s
sg78xxa/78xx p roduct d atasheet microsemi analog mixed signal group 11861 western avenue, garden grove, ca. 92841, 714-898-8121, fax: 714-893-2570 page 7 www. microsemi . com copyright ? 1997 rev. 1.5, 2010-07-13 tm ? positive fixed voltage regulator electrical characteristics unless otherwise specified, these specifi cations apply over the oper ating ambient temperatures for sg7815a / sg7815 with -55c < t a < 125c, v in = 23v, i o = 500ma for the k, g and ig ? power packages, i o = 100ma for the t and l packages, c in = 0.33f, and c out = 0.1f. low duty cycle pulse te sting techniques are used which maintains junction and case temperatures equal to the ambient temperature. parameter test conditions sg7815a sg7815 units min typ max min typ max output voltage t j = 25c 14.8 15.0 15.2 14.4 15.0 15.6 v line regulation (note 1) v in = 17.5v to 30v, t j = 25c 15 75 15 150 mv v in = 20v to 26v, t j = 25c 8 40 8 75 mv load regulation (note 1) power pkgs: i o = 5ma to 1.5a, t j = 25c 30 100 30 150 mv i o = 250ma to 750ma, t j = 25c 12 50 12 75 mv t ? pkg: i o = 5ma to 500ma, t j = 25c 12 50 12 75 total output voltage v in = 18.5v to 30v tolerance power pkgs: i o = 5ma to 1.0a, p < 20w 14.6 15.0 15.4 14.3 15.0 15.7 v t ? pkg: i o = 5ma to 500ma, p < 2w 14.6 15.0 15.4 14.3 15.0 15.7 v quiescent current over temperature range 7 7 ma t j = 25c 4 6 4 6 ma quiescent current change with line: v in = 18.5v to 30v 0.8 0.8 ma with load: i o = 5ma to 1.0a (power pkgs) 0.5 0.5 ma i o = 5ma to 500ma (t) 0.5 0.5 ma dropout voltage ? v o = 100mv, t j = 25c power pkgs: i o = 1.0a, t ? pkg: i o = 500ma 2 2.5 2 2.5 v peak output current power pkgs: t j = 25c 1.5 2.2 3.3 1.5 2.2 3.3 a t ? pkg: t j = 25c 0.5 0.9 1.7 0.5 0.9 1.7 a short circuit current power pkgs: v in = 35v, t j = 25c 1.2 1.2 a t ? pkg: v in = 35v, tj = 25c 0.7 0.7 a ripple rejection ? v in = 10v, f = 120hz, t j = 25c 60 60 db output noise voltage (rms) f = 10hz to 100khz (note 2) 40 40 v/v long term stability 1000 hours @ tj = 125c 60 60 mv thermal shutdown i o = 5ma 175 175 note 1: all regulation tests are made at constant junction temperature with low duty cycle testing. 2: this test is guaranteed but is not tested in production. notes e e l l e e c c t t r r i i c c a a l l s s
sg78xxa/78xx p roduct d atasheet microsemi analog mixed signal group 11861 western avenue, garden grove, ca. 92841, 714-898-8121, fax: 714-893-2570 page 8 www. microsemi . com copyright ? 1997 rev. 1.5, 2010-07-13 tm ? positive fixed voltage regulator connection diagrams & ordering information (see notes below) package part no. ambient temperature range connection diagram 3-terminal to-3 metal can k ? package sg78xxak/883b -55c to 125c v in v out 1 2 case is ground sg7805ak/desc -55c to 125c sg7812ak/desc -55c to 125c sg7815ak/desc -55c to 125c sg78xxak -55c to 125c sg78xxk/883b -55c to 125c jan7805k -55c to 125c jan7812k -55c to 125c jan7815k -55c to 125c sg78xxk -55c to 125c 3-pin to-39 metal can t ? package sg78xxat/883b -55c to 125c 1 2 3 v in v out gnd case is ground sg7805at/desc -55c to 125c sg7812at/desc -55c to 125c sg7815at/desc -55c to 125c sg78xxat -55c to 125c sg78xxt/883b -55c to 125c jan7805t -55c to 125c jan7812t -55c to 125c jan7815t -55c to 125c sg78xxt -55c to 125c 3-pin hermetic to-257 ig ? package (isolated) sg78xxaig/883b -55c to 125c v out ground v in sg7805aig/desc -55c to 125c sg7812aig/desc -55c to 125c sg7815aig/desc -55c to 125c sg78xxaig -55c to 125c sg78xxig/883b -55c to 125c sg78xxig -55c to 125c 20-pin ceramic leadless chip carrier l ? package sg7805al/desc -55c to 125c n.c. v in n.c. n.c. n.c. n.c. gnd n.c. n.c. v out n.c. v out n.c. n.c. v o sense n.c. v in n.c. n.c. n.c. 1 2 3 4 5 6 7 8 910111213 14 15 16 17 18 19 20 see notes 5 & 6 sg7812al/desc -55c to 125c sg7815al/desc -55c to 125c sg78xxl/883b -55c to 125c 3-pin hermetic to-257 g ? package (case is ground) sg78xxag/883b -55c to 125c v out ground v in case is ground sg7805ag/desc -55c to 125c sg7812ag/desc -55c to 125c sg7815ag/desc -55c to 125c sg78xxag -55c to 125c sg78xxg/883b -55c to 125c sg78xxg -55c to 125c note 1: contact factory for jan and desc product availability. 2: all parts are viewed from the top. 3: ?xx? to be replaced by output voltage of specific fixed regulator. 4: some products will be available in hermetic flat pack (f). consult factory for price and availability. 5: both inputs and outputs must be externally connected together at the device terminals. 6: for normal operation, the v o sense pin must be externa lly connected to the load. m m e e c c h h a a n n i i c c a a l l s s
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