www.fairchildsemi.com KA317M 3-terminal 0.5A positive adjustable regulator Features 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. 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 TO-220 1 D-PAK 1 I-PAK 1 1. Adj 2. Output 3. Input Internal Block Diagram V in 3 Input + - V olta ge Re fe re nce P rote ction Circ uitry R limit 2 Vo Output 1 V ad j Rev. 5.0 (c)2000 Fairchild Semiconductor International KA317M Absolute Maximum Ratings Parameter Symbol Value Unit Input-Output Voltage Differential V I - VO 40 V PD Internally limited W Operating Temperature Range TOPR 0 ~ +125 C Storage Temperature Range TSTG -65 ~+125 C Power Dissipation Electrical Characteristics (VI - VO = 5V, IO = 0.1A, 0C TJ +125C, PDMAX =7.5W, unless otherwise specified) Parameter *Line Regulation Symbol Rline Rload *Load Regulation Adjustment Pin Current Adjustment Pin Current Change Reference Voltage Temperature Stability Conditions Min. Typ. Max. TA = +25C 3V VI -VO 40V - 0.01 0.04 3V VI -VO 40V - 0.02 0.07 TA =+ 25C 10mA IO 0.5A VO 5V VO 5V - 5 0.1 25 0.5 mV %/ VO 10mA IO 0.5A VO 5V VO 5V - 20 0.3 70 1.5 mV %/ VO - 50 100 uA 0.2 5 uA 1.20 1.25 1.30 V - 0.7 IADJ IADJ VREF 3V VI - VO 40V 10mA IO 0.5A PD < PDMAX 3V < VI - VO < 40V 10mA IO 0.5A PD < PDMAX STT - - IL(MIN) VI - VO 40V - 3.5 Maximum Output Current IO(MAX) VI - VO 15V PD < PDMAX 0.5 0.9 0.15 0.25 - - 0.003 - 66 65 80 - - 0.3 1 RMS Noise, % of VOUT eN Ripple Rejection RR Long-Term Stability ST TA = +25C 10Hz < f < 10KHz VO = 10V, f = 120Hz without CADJ CADJ = 10uF TJ =+ 125C, 1000Hours %/ V %/ VO Minimum Load Current to Maintain Regulation VI - VO 40V PD < PDMAX, TA =+ 25C Unit 10 mA A %/ VO dB %/ 1000Hrs * Load and Line regulation are specified at constant junction temperature. Change in VO due to heating effects must be taken into account separately. Pulse testing with low duty cycle is used. 2 KA317M Typical Application Input Output Figure 1. 1 5V Electronic Shutdown Regulator D1 protects the device during an input short circuit. Input Output Figure 2. Slow Turn-On Regulator Input Output Figure 3. Current Regulator 3 KA317M Mechanical Dimensions Package TO-220 4.50 0.20 2.80 0.10 (3.00) +0.10 1.30 -0.05 18.95MAX. (3.70) o3.60 0.10 15.90 0.20 1.30 0.10 (8.70) (1.46) 9.20 0.20 (1.70) 9.90 0.20 (45 1.52 0.10 0.80 0.10 2.54TYP [2.54 0.20] 2.54TYP [2.54 0.20] 10.00 0.20 4 10.08 0.30 (1.00) 13.08 0.20 ) 1.27 0.10 +0.10 0.50 -0.05 2.40 0.20 KA317M Mechanical Dimensions (Continued) Package D-PAK 0.89 0.10 MIN0.55 0.91 0.10 0.50 0.10 9.50 0.30 0.76 0.10 0.50 0.10 1.02 0.20 2.30TYP [2.300.20] (1.00) (3.05) (2XR0.25) (0.10) 6.60 0.20 (5.34) (5.04) (1.50) (0.70) 2.30 0.20 (0.90) 2.70 0.20 2.30 0.10 2.70 0.20 2.30TYP [2.300.20] (0.50) 6.10 0.20 MAX0.96 (4.34) 9.50 0.30 0.80 0.20 0.60 0.20 (0.50) 6.10 0.20 5.34 0.30 0.70 0.20 6.60 0.20 0.76 0.10 5 KA317M Mechanical Dimensions (Continued) Package I-PAK 2.30 0.20 6.60 0.20 5.34 0.20 0.76 0.10 2.30TYP [2.300.20] 6 0.50 0.10 16.10 0.30 6.10 0.20 0.70 0.20 (0.50) 9.30 0.30 MAX0.96 (4.34) 1.80 0.20 0.80 0.10 0.60 0.20 (0.50) 2.30TYP [2.300.20] 0.50 0.10 KA317M Ordering Information Product Number Package KA317M TO-220 KA317MR D-PAK KA317MI I-PAK Operating Temperature 0 ~ 125 C 7 KA317M 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 INTERNATIONAL. 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 7/13/00 0.0m 001 Stock#DSxxxxxxxx 2000 Fairchild Semiconductor International