?2002 fairchild semiconductor corporation www.fairchildsemi.com rev. 1.0.2 features ? output current in excess of 0.5a ? output adjustable between 1.2v and 37v ? internal thermal overload protection ? internal short circuit current limiting ? output transistor safe area compensation ? floating operation for high voltage applications description the ka317m is a 3-terminal adjustable positive voltage regulator capable of supplying in excess of 500ma over an output voltage range of 1.2v to 37v. this voltage regulator is exceptionally easy to use and requires only two external resistors to set the output voltage. d-pak 1. adj 2. output 3. input 1 2 3 to-220 1 2 3 internal block diagram rlimit 3 vin vo 1 voltage reference vad j 2 protection circuitry + - input output ka317m 3-terminal 0.5a positive adjustable regulator
ka317m 2 absolute maximum ratings electrical characteristics (v i -v o =5v, i o = 0.1a, 0 c t j + 125 c, p dmax = 7.5w, unless otherwise specified) note : 1. thermal resistance test board size: 76.2mm * 114.3mm * 1.6mm(1s0p) jedec standard: jesd51-3, jesd51-7 2. assume no ambient airflow. 3. 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 cycle is used. 4. c adj , when used, is connected between the adjustment pin and ground. parameter symbol value unit input output voltage differential v i - v o 40 v power dissipation p d internally limited w thermal resistance junction-air d-pak (note1,2) r ja 100 c/w operating junction temperature range t j 0 ~ +125 c storage temperature range t stg -65 ~+125 c parameter symbol conditions min. typ. max. unit line regulation (note3) rline t a = +25 c, 3v v i ? v o 40v - 0.01 0.04 %/ v 3v v i ? v o 40v - 0.02 0.07 load regulation (note3) rload t a =+ 25 c, 10ma i o 0.5a v o 5v v o 5v -5 0.1 25 0.5 mv %/ v o 10ma i o 0.5a v o 5v v o 5v -20 0.3 70 1.5 mv %/ v o adjustment pin current i adj - - 50 100 ua adjustment pin current change ? i adj 3v v i - v o 40v 10ma i o 0.5a, p d < p dmax -0.25 ua reference voltage v ref 3v < v i - v o < 40v 10ma i o 0.5a, p d < p dmax 1.20 1.25 1.30 v temperature stability st t - - 0.7 - %/ v o minimum load current to maintain regulation i l(min) v i - v o = 40v - 3.5 10 ma maximum output current i o(max) v i - v o 15v, p d < p dmax 0.5 0.9 - a v i - v o = 40v p d < p dmax , t a =+ 25 c 0.15 0.25 - rms noise, % of v out e n t a = +25 c, 10hz < f < 10khz - 0.003 - %/ v o ripple rejection rr v o = 10v, f = 120hz without c adj c adj = 10uf (note4) 66 65 80 -db long-term stability st t j =+ 125 c, 1000hours - 0.3 1 %/1000hrs
ka317m 3 typical performance characteristics figure 1. minimum load current figure 2. peak output current vs. input-output differential voltage figure 3. adjustment pin current vs. temperature figure 4. ripple rejection vs. frequency figure 5. load regulation vs. temperature figure 6. line regulation vs. temperature
ka317m 4 typical performance characteristics (continued) figure 7. outputvoltage vs. temperature figure 8. thermal shutdown
ka317m 5 typical application figure 1. 15v electronic shutdown regulator d1 protects the device during an input short circuit. figure 2. slow turn-on regulator figure 3. current regulator input output input output input output
ka317m 6 mechanical dimensions package dimensions in millimeters 4.50 0.20 9.90 0.20 1.52 0.10 0.80 0.10 2.40 0.20 10.00 0.20 1.27 0.10 ?.60 0.10 (8.70) 2.80 0.10 15.90 0.20 10.08 0.30 18.95max. (1.70) (3.70) (3.00) (1.46) (1.00) (45 ) 9.20 0.20 13.08 0.20 1.30 0.10 1.30 +0.10 ?.05 0.50 +0.10 ?.05 2.54typ [2.54 0.20 ] 2.54typ [2.54 0.20 ] to-220
ka317m 7 mechanical dimensions (continued) package dimensions in millimeters 6.60 0.20 2.30 0.10 0.50 0.10 5.34 0.30 0.70 0.20 0.60 0.20 0.80 0.20 9.50 0.30 6.10 0.20 2.70 0.20 9.50 0.30 6.10 0.20 2.70 0.20 min0.55 0.76 0.10 0.50 0.10 1.02 0.20 2.30 0.20 6.60 0.20 0.76 0.10 (5.34) (1.50) (2xr0.25) (5.04) 0.89 0.10 (0.10) (3.05) (1.00) (0.90) (0.70) 0.91 0.10 2.30typ [2.30 0.20] 2.30typ [2.30 0.20] max0.96 (4.34) (0.50) (0.50) d-pak
ka317m 3/14/02 0.0m 001 stock#dsxxxxxxxx ? 2002 fairchild semiconductor corporation life support policy fairchild?s products are not authorized for use as critical components in life support devices or systems without the express written approval of the president of fairchild semiconductor corporation. as used herein: 1. life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user. 2. a critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. www.fairchildsemi.com disclaimer fairchild semiconductor reserves the right to make changes without further notice to any products herein to improve reliability, function or design. fairchild does not assume any liability arising out of the application or use of any product or circuit described herein; neither does it convey any license under its patent rights, nor the rights of others. ordering information product number package operating temperature ka317m to-220 0 ~ 125 c ka317mr d-pak
product folder - fairchild p/n ka317m - adjustable voltage regulator (positive) fairchild semiconductor space space space search | parametric | cross reference space product folders and datasheets application notes space space space find products home >> find products >> space space space space products groups space analog and mixed signal discrete interface logic microcontrollers non-volatile memory optoelectronics markets and applications new products product selection and parametric search cross-reference search technical information buy products technical support my fairchild company ka317m adjustable voltage regulator (positive) related links request samples dotted line how to order products dotted line product change notices (pcns) dotted line support dotted line distributor and field sales representatives dotted line quality and reliability dotted line design tools contents general description | features | product status/pricing/packaging general description the ka317m is a 3-terminal adjustable positive voltage regulator capable of supplying in excess of 500ma over an output voltage range of 1.2v to 37v. this voltage regulator is exceptionally easy to use and requires only two external resistors to set the output voltage. back to top features l output current in excess of 0.5a l output adjustable between 1. 2v and 37v l internal thermal-overload protection l internal short-circuit current-limiting l output transistor safe-area compensation l floating operation for high-voltage applications back to top space datasheet download this datasheet pdf e-mail this datasheet [e- mail] this page print version product status/pricing/packaging product product status package type leads packing method KA317MRTF full production to-252(dpak) 2 tape reel ka317mrtm full production to-252(dpak) 2 tape reel ka317mtu full production to-220 3 rail file:///e|/new/html/ka317m.html (1 of 2) [7/26/02 11:48:42 am]
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