sg723 09/02 rev 1.3 l infinity microelectronics inc. copyright ? 1997 11861 western avenue garden grove, ca 92841 1 (714) 898-8121 fax: (714) 893-2570 description this monolithic voltage regulator is designed for use with either positive or negative supplies as a series, shunt, switching, or floating regulator with currents up to 150ma. higher current requirements may be accommodated through the use of external npn or pnp power transistors. this device consists of a temperature compensated reference amplifier, error amplifier, power series pass transistor, current limit, and remote shutdown circuitry. the sg723 will operate over the full military ambient temperature range of -55c to 125c. precision voltage regulator features positive or negative supply operation series, shunt, switching or floating operation low line and load regulation output adjustable from 2v to 37v output current to 150 ma low standby current drain 0.002%/c average temperature variation high reliability features - sg723 available to mil-std-883 and desc smd mil-m38510/10201bha - jan 723f mil-m38510/10201bia - jan 723t mil-m38510/10201bca - jan723j radiation data available lmi level "s" processing available block diagram
sg723 09/02 rev 1.3 l infinity microelectronics inc. copyright ? 1997 11861 western avenue garden grove, ca 92841 2 (714) 898-8121 fax: (714) 893-2570 pulse (50 ms) input voltage from v in to v- ......................... continuous input voltage from v in to v- ............................. input to output voltage differential .................................... maximum output current .............................................. current from v z (j-package only)................................... absolute maximum ratings (note 1) current?from?v ref ............................................................... operating junction temperature hermetic (t, j, f, l-packages)..................................... storage temperature range ........................... lead temperature (soldering, 10 seconds) ................. 15ma 150 c -65 c to 150 c 300 c 50v 40v 40v 150ma 25 ma note 1. exceeding these ratings could cause damage to the device. thermal data j package: thermal resistance- junction to case , q jc .................. 30c/w thermal resistance- junction to ambient , q ja .............. 80c/w t package: thermal resistance- junction to case , q jc .................. 25c/w thermal resistance- junction to ambient , q ja ........... 130c/w f package: thermal resistance- junction to case , q jc ................... 80c/w thermal resistance- junction to ambient , q ja ........... 145c/w l package: thermal resistance- junction to case , q jc .................. 35c/w thermal resistance- junction to ambient , q ja ........... 120c/w note a. junction temperature calculation: t j = t a + (p d x q ja ). note b. the above numbers for q jc are maximums for the limiting thermal resistance of the package in a standard mount- ing configuration. the q ja numbers are meant to be guidelines for the thermal performance of the device/pc- board system. all of the above assume no ambient airflow. input voltage range ................................. output current range ........................................ reference?current............................................................. (v out +4.5v) to 38 v 5ma to 45ma 5ma zener current (j-package only)......................................... operating ambient temperature range sg723?.......................................................... 5ma -55c to 125c recommended operating conditions (note 2) note 2. range over which the device is functional. electrical characteristics (unless otherwise specified, these specifications apply for the operating ambient temperature of t a = 25c, v in = v c = 12v, v- = 0v, v out = 5v, i l = 1 ma, r sc = 0 w , c 1 = 100pf, and divider impedance as seen by error amplifier 10k w . low duty cycle pulse testing echniques are used which maintains junction and case temperatures equeal to the ambient temperature.) test conditions parameter input voltage range output voltage range input to output differential line regulation (note 3) load regulation (note 3) ripple rejection temperature stability (note 4) short circuit current limit reference voltage output noise voltage standby current drain long term stability units v v v %v out %v out %v out %v out %v out db db %/c ma v m v rms m v rms ma %/khr v in = 12v to 15v t a = t min to t max v in = 12v to 40v i l = 1 to 50 ma t a = t min to t max f = 50 hz to 10khz c ref = 0 c ref = 5 m f t a = t min to t max r sc = 10 w bw = 100hz to 10khz c ref = 0 c ref = 5 m f i l = 0, v in = 30v note 4. these parameters, although guaranteed, are not tested in production. note 3. applies for constant junction temperature. temperature drift effects must be taken into account separately when the unit is operating under conditions of high dissipa- tion. sg723 min. typ. max. 40 37 38 0.1 0.3 0.2 0.15 0.6 0.015 7.35 3.5 0.01 0.02 0.03 74 86 0.002 65 7.15 20 2.5 2.3 0.1 9.5 2.0 3.0 6.95
sg723 09/02 rev 1.3 l infinity microelectronics inc. copyright ? 1997 11861 western avenue garden grove, ca 92841 3 (714) 898-8121 fax: (714) 893-2570 figure 6. transient response figure 5. standby current drain figure 3. current limiting characteristics figure 2. maximum load current figure 1. load regulation figure 4. regulation vs. input-output voltage regulation characteristic curves figure 7 - basic low voltage regulator v out = 2v to 7 v figure 8 - basic high voltage regulator v out = 7v to 37 v application information
sg723 09/02 rev 1.3 l infinity microelectronics inc. copyright ? 1997 11861 western avenue garden grove, ca 92841 4 (714) 898-8121 fax: (714) 893-2570 figure 9 - high current regulator external npn transistor i l = 1.0a figure 10 - negative voltage regulator note 1. contact factory for jan and desc product availablity. 2. all packages are viewed from the top. connection diagrams & ordering information (see notes below) ambient temperature range part no. package connection diagram 14-pin ceramic dip j - package sg723j/883b -55 c to 125 c jan723j -55 c to 125 c sg723j -55c to 125c 10-pin ceramic flat pack f - package 20-pin ceramic leadless chip carrier l- package sg723t/883b -55c to 125c jan723t -55c to 125c sg723t -55c to 125c 10-pin metal can t - package (notes 3 & 4) (note 3) note 3. v z output is not available in t, f-packages. 4. pin 5 is connected to case. 2 3 4 5 1 6 7 14 13 10 12 11 9 8 inverting input v ref v- non-inverting input v in freq. compensation v c v out v z n.c. n.c. current limit current sense n.c. 3 2 1 4 5 6 7 8 9 10 current limit non-inverting input v ref v c v- v in inverting input JAN723F -55c to 125c current limit v out 9 7 8 6 1 2 3 4 5 10 v ref v c v in freq. comp. inverting input current sense non-inverting input v- 4 5 6 7 8 18 17 16 15 14 32 12019 1. freq. comp. 2. current limit 3. current sense 4. n.c. 5. inverting input 6. n.c. 7. n. i. input 8. v ref 9. n.c. 10. v- 11. n.c. 12. v z 13. n.c. 14. v out 15. n.c. 16. n.c. 17. n.c. 18. v c 19. n.c. 20. v in 10 11 12 13 9 sg723l/883b -55 c to 125 c sg723l -55 c to 125 c current sense freq. compensation v out application information (continued)
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