1 GM7900 series 1.5a negative voltage regulator GM7900 v2.00 www.gammamicro.com.tw typical application circuit description the GM7900 series of fixed-negative voltage monolithic integrated circuit voltage regulators is designed to complement series gm7800 in a wide range of applications. these applications include on-card regulation for elimination of noise and distribution problems associated with single-point regulation. each of these regulators can deliver up to 1.5a of output current. the internal limiting and thermal shutdown features of these regulators make them essentially immune to overload. in addition to use as fixed-voltage regulators, these devices can be used with external components to obtain adjustable output voltages and current and also as the power pass element in precision regulators. the GM7900 series are available in to-220, to- 252, to-263 packages. features ? output current up to 1.5a ? available output voltage options from - 5v to -24v ? 3- terminal regulators ? internal thermal overload protection ? internal short-circuit current limiting ? output transistor safe-area protection ? to-220, to-252 and to-263 packages ? high power dissipation capability v in GM7900 v out 1.5a c in 2f c out 1f when using a negative regulator, bypass capacitors are a must on both input and output. recommended values are 2f on the input and 1f on the output. it is considered good practice to include a 0.1f capacito r on the output to improve the transient response. these capacitors may mylar, ceramic, or tantal um, provided that they have good high frequency characteristics c out 2 0.1f
2 GM7900 v 2.00 GM7900 series 1.5a negative voltage regulator marking information and pin configur ations (top view) ? green products to 252 (d-pak) to 220 to 263 (d 2 -pak) g: green product vv: output voltage codes (05: -5.0v, ?-12:12v) a: assembly/test site code y: year ww: week gm79vvg ayww gm79vvg ayww gm79vvg ayww 1. common 2.v in 3. v out 1. common 2. v in 3. v out 1. common 2. v in 3. v out
3 GM7900 series 1.5a negative voltage regulator GM7900 v2.00 ordering information ? green products ordering number v out package shipping GM7900ta3tg to-263 50 units/tube GM7900ta3rg to-263 800 units / reel GM7900tb3tg to-220 50 units/tube GM7900tc3tg to-252 80 units/tube GM7900tc3rg 00 = -5.0v -6.0v -8.0v -9.0v -10.0v -12.0v -15.0v -18.0v -24.0v to-252 2,500 units / reel absolute maximum ratings parameter symbol ratings units gm7905 to gm7920 -35 input voltage gm7924 v i -40 v continuous total dissipation at 25 c free air temperature 2 w continuous total dissipation at (or below) 25 c case temperature 15 w operating ambient temperature t a 0 to 150 c storage temperature t stg - 60 to 150 c lead temperature 1.6mm (1/6 inch) from case for 10 seconds 260 c recommended operating conditions parameter symbol min max units gm7905 -7 -25 gm7906 -8 -25 gm7908 -10.5 -25 gm7909 -11.5 -25 gm7912 -14.5 -30 gm7915 -17.5 -30 gm7918 -21 -33 gm7920 -23 -34 input voltage gm7924 v i -27 -38 v output current i o 1.5 a operating virtual junction temperature t j 0 125 c
4 GM7900 v 2.00 GM7900 series 1.5a negative voltage regulator gm7905 electrical characteristics (v i = -10v, i o = 500ma unless otherwise noted) parameter test condition (note 1) min typ max unit 25c -4.8 -5.0 -5.2 output voltage (note *) i o =5ma to 1a v i = -7v to -20v, p ?? 15w 0c to 125c -4.75 -5.0 -5.25 v v i = -7v to -25v 12.5 50 input regulation v i = -8v to -12v 25c 4 15 mv ripple rejection v i = -8v to -18v, f = 120khz 0c to 125c 54 60 db i o = 5ma to 1.5a 15 100 output regulation i o = 250ma to 750ma 25c 5 50 mv temperature coefficient of output voltage i o = 5ma 0c to 125c -0.4 mv/c output noise voltage f = 10hz to 100khz 25c 125 v dropout voltage i o = 1a 25c 1.6 v bias current 25c 1.5 2.0 ma v i = -7v to -25v 0.15 0.5 bias current change i o = 5ma to 1a 0c to 125c 0.08 0.5 ma peak output current 25c 2.1 a gm7906 electrical characteristics (v i = -11v, i o = 500ma unless otherwise noted) parameter test condition (note 1) min typ max unit 25c -5.75 -6.0 -6.25 output voltage (note *) i o =5ma to 1a v i = -8v to -21v, p ?? 15w 0c to 125c -5.70 -6.0 -6.30 v v i = -8v to -25v 12.5 120 input regulation v i = -9v to -13v 25c 4 60 mv ripple rejection v i = -9v to -19v, f = 120khz 0c to 125c 54 60 db i o = 5ma to 1.5ma 15 120 output regulation i o = 250ma to 750ma 25c 5 60 mv temperature coefficient of output voltage i o = 5ma 0c to 125c -0.4 mv/c output noise voltage f = 10hz to 100khz 25c 150 v dropout voltage i o = 1a 25c 1.6 v bias current 25c 1.5 2 ma v i = -8v to -25v 0.15 1.3 bias current change i o = 5ma to 1a 0c to 125c 0.08 0.5 ma short circuit output current 25c 550 ma peak output current 25c 2.1 a note *: this specification applies only for dc powe r dissipation permitted by absolute maximum ratings. note 1: pulse testing techniques are used to maintain the junction temperature as clos e to the ambient temperature as possible. thermal effects must be taken into account separately.
5 GM7900 series 1.5a negative voltage regulator GM7900 v2.00 gm7908 electrical characteristics (v i = -14v, i o = 500ma unless otherwise noted) parameter test condition (note 1) min typ max unit 25c -7.7 -8.0 -8.3 output voltage (note *) i o =5ma to 1a v i = -10.5v to -23v, p ?? 15w 0c to 125c -7.6 -8.0 -8.4 v v i = -10.5v to -25v 12.5 160 input regulation v i = -11v to -17v 25c 4 80 mv ripple rejection v i = -11.5v to -21.5v, f = 120khz 0c to 125c 54 60 db i o = 5ma to 1.5a 15 160 output regulation i o = 250ma to 750ma 25c 5 80 mv temperature coefficient of output voltage i o = 5ma 0c to 125c -0.8 mv/c output noise voltage f = 10hz to 100khz 25c 200 v dropout voltage i o = 1a 25c 1.6 v bias current 25c 1.5 2 ma v i = -10.5v to -25v 0.15 1 bias current change i o = 5ma to 1a 0c to 125c 0.08 0.5 ma peak output current 25c 2.1 a gm7909 electrical characteristics (v i = -15v, i o = 500ma unless otherwise noted) parameter test condition (note 1) min typ max unit 25c 8.64 9.0 9.36 output voltage (note *) i o =5ma to 1a v i = -11.5v to -25v, p ?? 15w 0c to 125c 8.55 9.0 9.45 v v i = -11.5v to -25v 12.5 180 input regulation v i = -14.5v to -22v 25c 4 90 mv ripple rejection v i = -12.5v to -24v, f = 120khz 0c to 125c 54 60 db i o = 5ma to 1.5a 15 180 output regulation i o = 250ma to 750ma 25c 5 90 mv temperature coefficient of output voltage i o = 5ma 0c to 125c -1.0 mv/c output noise voltage f = 10hz to 100khz 25c 225 v dropout voltage i o = 1a 25c 1.6 v bias current 25c 1.5 2 ma v i = -11.5v to -25v 0.15 1 bias current change i o = 5ma to 1a 0c to 125c 0.08 0.5 ma peak output current 25c 2.2 a note *: this specification applies only for dc powe r dissipation permitted by absolute maximum ratings. note 1: pulse testing techniques are used to maintain the junction temperature as clos e to the ambient temperature as possible. thermal effects must be taken into account separately.
6 GM7900 v 2.00 GM7900 series 1.5a negative voltage regulator gm7912 electrical characteristics (v i = -19v, i o = 500ma unless otherwise noted) parameter test condition (note 1) min typ max unit 25c -11.5 -12 -12.5 output voltage (note *) i o =5ma to 1a v i = -14.5v to -27v, p ?? 15w 0c to 125c -11.4 -12 -12.6 v v i = -14.5v to -30v 5 80 input regulation v i = -16v to -22v 25c 3 30 mv ripple rejection v i = -15v to -25v, f = 120khz 0c to 125c 54 60 db i o = 5ma to 1.5a 15 200 output regulation i o = 250ma to 750ma 25c 5 75 mv temperature coefficient of output voltage i o = 5ma 0c to 125c -0.8 mv/c output noise voltage f = 10hz to 100khz 25c 300 v dropout voltage i o = 1a 25c 1.5 v bias current 25c 2 3 ma v i = -14.5v to -30v 0.04 0.5 bias current change i o = 5ma to 1a 0c to 125c 0.06 0.5 ma peak output current 25c 2.1 a gm7915 electrical characteristics (v i = -23v, i o = 500ma unless otherwise noted) parameter test condition (note 1) min typ max unit 25c -14.4 -15 -15.6 output voltage (note *) i o =5ma to 1a v i = -17.5v to -30v, p ?? 15w 0c to 125c -14.25 -15 -15.75 v v i = -17.5v to -30v 5 100 input regulation v i = -20v to -26v 25c 3 50 mv ripple rejection v i = 15v to 25v, f = 120khz 0c to 125c 54 60 db i o = 5ma to 1.5a 15 200 output regulation i o = 250ma to 750ma 25c 5 75 mv temperature coefficient of output voltage i o = 5ma 0c to 125c -1.0 mv/c output noise voltage f = 10hz to 100khz 25c 375 v dropout voltage i o = 1a 25c 1.5 v bias current 25c 2 3 ma v i = -17.5v to -30v 0.04 0.5 bias current change i o = 5ma to 1a 0c to 125c 0.06 0.5 ma peak output current 25c 2.1 a note *: this specification applies only for dc powe r dissipation permitted by absolute maximum ratings. note 1: pulse testing techniques are used to maintain the junction temperature as clos e to the ambient temperature as possible. thermal effects must be taken into account separately.
7 GM7900 series 1.5a negative voltage regulator GM7900 v2.00 gm7918 electrical characteristics (v i = -27v, i o = 500ma unless otherwise noted) parameter test condition min typ max unit 25c -17.3 18 -18.7 output voltage (note *) i o =5ma to 1a v i = -21v to -33v, p ?? 15w 0c to 125c 17.1 -18 -18.9 v v i = -21v to -33v 5 360 input regulation v i = -24v to =30v 25c 3 180 mv ripple rejection v i = -22v to -32v, f = 120khz 0c to 125c 54 60 db i o = 5ma to 1.5a 30 360 output regulation i o = 250ma to 750ma 25c 10 180 mv temperature coefficient of output voltage i o = 5ma 0c to 125c -1.0 mv/c output noise voltage f = 10hz to 100khz 25c 450 v dropout voltage i o = 1a 25c 1.5 v bias current 25c 2 3 ma v i = -21v to -33v 0.04 1 bias current change i o = 5ma to 1a 0c to 125c 0.06 0.5 ma peak output current 25c 2.1 a gm7920 electrical characteristics (v i = -31v, i o = 500ma unless otherwise noted) parameter test condition (note 1) min typ max unit 25c -19.2 20 -20.8 output voltage (note *) i o =5ma to 1a v i = -23v to -34v, p ?? 15w 0c to 125c -19 -20 -21 v v i = -23v to -34v 5 400 input regulation v i = -26v to -31v 25c 3 200 mv ripple rejection v i = -24v to -33v, f = 120khz 0c to 125c 54 60 db i o = 5ma to 1.5a 50 400 output regulation i o = 250ma to 750ma 25c 15 120 mv temperature coefficient of output voltage i o = 5ma 0c to 125c -1.0 mv/c output noise voltage f = 10hz to 100khz 25c 500 v dropout voltage i o = 1a 25c 1.6 v bias current 25c 2 3 ma v i = -23v to -34v 0.04 1 bias current change i o = 5ma to 1a 0c to 125c 0.06 0.5 ma peak output current 25c 2.1 a note *: this specification applies only for dc powe r dissipation permitted by absolute maximum ratings. note 1: pulse testing techniques are used to maintain the junction temperature as clos e to the ambient temperature as possible. thermal effects must be taken into account separately.
8 GM7900 v 2.00 GM7900 series 1.5a negative voltage regulator gm7924 electrical characteristics (v i = -33v, i o = 500ma unless otherwise noted) parameter test condition (note 1) min typ max unit 25c -23 -24 -25 output voltage (note *) i o =5ma to 1a v i = -27v to -38v, p ?? 15w 0c to 125c -22.8 -24 -25.2 v v i = -27v to -38v 5 480 input regulation v i = -30v to -36v 25c 3 240 mv ripple rejection v i = -28v to -38v, f = 120khz 25c 54 60 db i o = 5ma to 1.5a 85 480 output regulation i o = 250ma to 750ma 25c 25 240 mv temperature coefficient of output voltage i o = 5ma 0c to 125c -1 mv/c output noise voltage f = 10hz to 100khz 25c 600 v dropout voltage i o = 1a 25c 1.6 v bias current 25c 2 3 ma v i = -27v to -38v 0.04 1 bias current change i o = 5ma to 1a 0c to 125c 0.06 0.5 ma peak output current 25c 2.1 a note *: this specification applies only for dc powe r dissipation permitted by absolute maximum ratings. note 1: pulse testing techniques are used to maintain the junction temperature as clos e to the ambient temperature as possible. thermal effects must be taken into account separately.
9 GM7900 series 1.5a negative voltage regulator GM7900 v2.00 package outline dimensions ? to263 0.045 - 0.055 (1.143 - 1.397) 0.050 +/- 0.012 (1.270 +/- 0.305) 0.090 - 0.110 (2.286 - 2.794) 0.143 + 0.012 0.143 - 0.002 (3.632 + 0305) (3.362 - 0.508) 0.050 (1.270) 0.013 - 0.023 (0.330 - 0.584) typ 0.059 (1.499) 0.020 - 0.039 (0.510 - 0.990) 0.330 - 0.370 (8.382 - 9.398) 0.060 (1.524) typ 0.390 - 0.415 (9.906 - 10.541) typ 15 0.105 - 0.180 (4.191 - 4.572) package outline dimensions ? to252 seating plan 0.370 ? 0.410 (9.400 ? 10.420) 0.205 ? 0.215 (5.210 ? 5.460) 0.210 ? 0.228 (5.330 ? 5.800) 0.055 ? 0.080 (1.400 ? 2.030) 0.018 ? 0.023 (0.460 ? 0.580) 0.030 ? 0.045 (0.760 ? 1.140) 0.180 (4.570) typ 0.090 (2.285) typ 0.045 ? 0.060 (1.150 ? 1.520) 0.039 ? 0.050 (1.020 ? 1.270) 0.018 ? 0.023 (0.460 ? 0.580) 0.020 (0.510) min
10 GM7900 v 2.00 GM7900 series 1.5a negative voltage regulator ordering number g m 78 05 ta3 t g output voltage package type shipping type blank:pb-free g:green apm gamma micro circuit type 05: 5.0v 06: 6.0v 08: 8.0v 09: 9.0v 10: 10v 12: 12v 15: 15v 18: 18v 24: 24v ta3: to263 tb3: to220 tc3: to252 r: taping & reel t: tube note: pb-free products: ? rohs compliant and compatible with the cu rrent require-ments of ipc/jedec j-std-020. ? suitable for use in snpb or pb-free soldering processes with 100% matte tin (sn) plating. green products: ? lead-free (rohs compliant) ? halogen free(br or cl does not exceed 900ppm by weight in homogeneous material and total of br and cl does not exceed 1500ppm by weight)
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