LM2940

1A 3 1A 3 0.5V 1V 1A 3V 1A 5V 30mA (V IN V OUT 3V) 2 (60V) * C Converted to nat2000 DTD updated with tape and reel with the new package name. SN Mil-Aero: Order Info table - moved J-15 part from WG row to J row, corrected part number. Under J pinout, corrected J-15 part number; under S pinout, adjusted layout of part numbers. Under Op Condns, added mil parts. In Elec Char for 12V, 15V parts, extended Ripple Rej parameter cell down to catch the next set of conditions. Under J mech dwg, corrected J-15 part number. WG Mil-Aero: Order Info table - reduced pt size for mil table, adjusted column widths a bit. WG Mil-Aero: Split Order Info table into two pieces, one for comm. & one for mil., because mil part numbers could not fit into allotted cells. Removed reference to AN1028 in App Hints. WG Mil-Aero: Fixed line breaks in Order Info table. Moved pinouts to follow Order Info, adjusted layout. Adjusted layout of Typ Perf Char curves to improve page breaks. WG Mil-Aero: removed fig entities for K package pinout & mech dwg. Mil-Aero: added fig entities for J16A & WG16A packages, & linked them to mech dwgs. Added fig entities for new pinout dwgs, & linked them. Ready to compose when pinout dwgs are done. WG Mil-Aero edits: Removed TO-3 package parts from Order table, AbsMax, Op Conditions, pinout & mech. dwg diagrams, added J16 & WG16 parts to Order table, pinouts, & mech dwg. Removed NewPage PI from pinout pages. Still need to add Fig Entities for new pinouts & mech dwgs. WG 2000 7 National Semiconductor Corporation 1 Printed in Japan NSJ 8/2001 1A 3 19860409 33200 24060 11800 DS008822 0.5V@I O 1A 1A P ** C OUT 22 F ESR ESR STABLE Temperature Range SOT-223 Output Voltage 5.0 8.0 9.0 10 12 15 Package 0 T J 125 CT-5.0 CT-9.0 CT-12 CT-15 TO-220 CS-5.0 CS-9.0 CS-12 CS-15 TO-263 40 T J 125 T-5.0 T-8.0 T-9.0 T-10 T-12 TO-220 S-5.0 S-8.0 S-9.0 S-10 S-12 TO-263 40 T J 85 IMP-5.0 IMP-8.0 IMP-9.0 IMP-10 IMP-12 IMP-15 SOT-223 SOT-223 Package Marking IMPX-5.0 IMPX-8.0 IMPX-9.0 IMPX-10 IMPX-12 IMPX-15 SOT-223 in Tape and Reel L53B L54B L0EB L55B L56B L70B 20000720 1A 3

(TO-220) Plastic Package Front View Order Number CT-5.0, CT-9.0, CT-12, CT-15, T-5.0, T-8.0, T-9.0, T-10 or T-12 See NS Package Number TO3B 3-Lead SOT-223 Front View Order Part Number IMP-5.0, IMP-8.0, IMP-9.0, IMP-10, IMP-12 or IMP-15 See NS Package Number MP04A (TO-263) Surface-Mount Package Top View Side View Order Number CS-5.0, CS-9.0, CS-12, CS-15, S-5.0, S-8.0, S-9.0, S-10 or S-12 See NS Package Number TS3B http://www.national.com 2

(Note 1) S T MP( 100ms) 60V CS T( 1ms) 45V (Note 2) 150 65 150 TO-263 (S) SOT-223 (MP) ESD (Note 3) (Note 1) T S 260 4 260 4 2 kv 26V 40 T A 125 TO-220 (T) 260 10 CT CS 0 T A 125 IMP 40 T A 85 V IN V O 5V I O 1A C O 22 F T A T J 25 Output Voltage (V O ) 5V 8V Parameter Conditions Typ Limit Typ Limit Units (Note 4) (Note 4) 6.25V V IN 26V 9.4V V IN 26V Output Voltage 5 ma I O 1A 5.00 4.85/4.75 8.00 7.76/7.60 V MIN 5.15/5.25 8.24/8.40 V MAX Line Regulation V O 2V V IN 26V, 20 50 20 80 mv MAX Load Regulation 50 ma I O 1A 35 50/80 55 80/130 mv MAX C 35 50 55 80 Output 100 madc and Impedance 20 marms, 35 55 m f O 120 Hz Quiescent V O 2V V IN 26V, Current 10 15/20 10 15/20 ma MAX C 10 15 V IN V O 5V, 30 45/60 30 45/60 ma MAX I O 1A Output Noise 10 Hz 100 khz, 150 240 V rms Voltage Ripple Rejection f O 120 Hz, 1 V rms, I O 100 ma 72 60/54 66 54/48 db MIN C 72 60 66 54 f O 1 khz, 1 V rms, db MIN Long Term 20 32 mv/ Stability 1000 Hr Dropout Voltage I O 1A 0.5 0.8/1.0 0.5 0.8/1.0 V MAX I O 100 ma 110 150/200 110 150/200 mv MAX Short Circuit (Note 6) Current 1.9 1.6 1.9 1.6 A MIN 3 http://www.national.com

( ) V IN V O 5V I O 1A C O 22 F T A T J 25 Output Voltage (V O ) 5V 8V Parameter Conditions Typ Limit Typ Limit Units (Note 4) (Note 4) Maximum Line R O 100 Transient, T 100 ms 75 60/60 75 60/60 V MIN C, T 1 ms 55 45 55 45 Reverse Polarity R O 100 DC Input Voltage 30 15/ 15 30 15/ 15 V MIN C 30 15 30 15 Reverse Polarity R O 100 Transient Input, T 100 ms 75 50/ 50 75 50/ 50 V MIN Voltage C, T 1 ms 55 45/ 45 V IN V O 5V I O 1A C O 22 F T A T J 25 Output Voltage (V O ) 9V 10V Parameter Conditions Typ Limit Typ Limit (Note 4) (Note 4) 10.5V V IN 26V 11.5V V IN 26V Units Output Voltage 5 ma I O 1A 9.00 8.73/8.55 10.00 9.70/9.50 V MIN 9.27/9.45 10.30/10.50 V MAX Line Regulation V O 2V V IN 26V, 20 90 20 100 mv MAX Load Regulation 50 ma I O 1A 60 90/150 65 100/165 mv MAX C 60 90 Output Impedance 100 madc and 20 marms, 60 65 m f O 120 Hz Quiescent V O 2V V IN 26V, Current 10 15/20 10 15/20 ma MAX C 10 15 V IN V O 5V, I O 1A 30 45/60 30 45/60 ma MAX Output Noise 10 Hz 100 khz, 270 300 V rms Voltage Ripple Rejection f O 120 Hz, 1 V rms, I O 100 ma Long Term Stability 64 52/46 63 51/45 db MIN C 64 52 34 36 mv/ 1000 Hr Dropout Voltage I O 1A 0.5 0.8/1.0 0.5 0.8/1.0 V MAX I O 100 ma 110 150/200 110 150/200 mv MAX Short Circuit (Note 6) 1.9 1.6 1.9 1.6 A MIN Current http://www.national.com 4

( ) V IN V O 5V I O 1A C O 22 F T A T J 25 Maximum Line Transient Reverse Polarity Output Voltage (V O ) 9V 10V Parameter Conditions Typ Limit Typ Limit (Note 4) (Note 4) Units R O 100 T 100 ms 75 60/60 75 60/60 V MIN C 55 45 R O 100 DC Input Voltage 30 15/ 15 30 15/ 15 V MIN C 30 15 Reverse Polarity R O 100 Transient Input T 100 ms Voltage 75 50/ 50 75 50/ 50 V MIN C 55 45/ 45 V IN V O 5V I O 1A C O 22 F T A T J 25 Output Voltage (V O ) 12V 15V Parameter Conditions Typ Limit Typ Limit Units (Note 4) (Note 4) 13.6V V IN 26V 16.75V V IN 26V Output Voltage 5 ma I O 1A 12.00 11.64/11.40 15.00 14.55/14.25 V MIN 12.36/12.60 15.45/15.75 V MAX Line Regulation V O 2V V IN 26V, 20 120 20 150 mv MAX Load Regulation 50 ma I O 1A 55 120/200 mv MAX C 55 120 70 150 Output 100 madc and Impedance 20 marms, 80 100 m f O 120 Hz Quiescent Current V O 2V V IN 26V, 10 15/20 ma MAX C 10 15 10 15 V IN V O 5V, I O 1A 30 45/60 30 45/60 ma MAX Output Noise 10 Hz 100 khz, 360 450 V rms Voltage Ripple Rejection f O 120 Hz, 1 V rms, I O 100 ma Long Term Stability 66 54/48 db MIN C 66 54 64 52 f O 1 khz, 1 V rms, db MIN 48 60 mv/ 1000 Hr Dropout Voltage I O 1A 0.5 0.8/1.0 0.5 0.8/1.0 V MAX I O 100 ma 110 150/200 110 150/200 mv MAX 5 http://www.national.com

( ) V IN V O 5V I O 1A C O 22 F T A T J 25 Output Voltage (V O ) 12V 15V Parameter Conditions Typ Limit Typ Limit Units (Note 4) (Note 4) Short Circuit (Note 6) Current 1.9 1.6 1.9 1.6 A MIN Maximum Line R O 100 Transient, T 100 ms 75 60/60 V MIN C, T 1 ms 55 45 55 45 Reverse Polarity R O 100 DC Input 30 15/ 15 V MIN Voltage C 30 15 30 15 Reverse Polarity R O 100 Transient Input, T 100 ms 75 50/ 50 V MIN Voltage C, T 1 ms 55 45/ 45 55 45/ 45 Note 1: Note 2: Note 3: Note 4: IC T J JA T A ( ) JA TO-220 60 /W TO-263 80 /W SOT-223 174 /W ( ) ESD 1.5k 100pF T A T J 25 ( ) ( ) T A T J 25 100 (SQC) Note 5: ( ) Note 6: 1A Dropout Voltage Dropout Voltage vs Temperature Output Voltage vs Temperature http://www.national.com 6

Quiescent Current vs Temperature Quiescent Current Quiescent Current Line Transient Response Load Transient Response Ripple Rejection Low Voltage Behavior Low Voltage Behavior Low Voltage Behavior Low Voltage Behavior Low Voltage Behavior Low Voltage Behavior 7 http://www.national.com

Output at Voltage Extremes Output at Voltage Extremes Output at Voltage Extremes Output at Voltage Extremes Output at Voltage Extremes Output at Voltage Extremes Output Capacitor ESR Peak Output Current http://www.national.com 8

Output Impedance Maximum Power Dissipation (TO-220) Maximum Power Dissipation (TO-3) Maximum Power Dissipation (TO-263) See (Note 2) 9 http://www.national.com

ESR( ) : 22 F ( ) ESR : ESR ESR Output Capacitor ESR FIGURE 1. ESR Limits ESR ESR 25 40 ESR 30 ESR 75 25 ( ) http://www.national.com 10

2 ESR 2 ESR ESR ESR P D Figure 2 - (H-A) (H-A) (J-A) (C-H) (J-C) (J-C) (J-C) 3 /W (C-H) (C-H) 1.5 /W 2.5 /W () 2 /W (H-A) (H-A) I IN I L I G P D (V IN V OUT ) I L (V IN ) I G FIGURE 2. Power Dissipation Diagram T R (max) T R (max) T J (max) T A (max) T J (max) 125 T A (max) T R (max) P D J-A (J-A) T R (max)/p D : (J-A) TO-220 53 /W TO-263 80 /W SOT-223 174 /W (J-A) TO-220 TO-220 PC TO-263 (J-A) TO-263 SOT-223 TO-263(S) SOT-223(MP) PCB PCB Figure 3 1 (35 m) TO-263 (J-A) FIGURE 3. (J-A) vs Copper (1 ounce) Area for the TO-263 Package 1 TO-263 PCB (J-A) 32 /W Figure 4 TO-263 ( (J-A) 35 /W 125 ) 11 http://www.national.com

FIGURE 4. Maximum Power Dissipation vs T AMB for the TO-263 Package FIGURE 5. (J-A) vs Copper (2 ounce) Area for the SOT-223 Package Figure 5 6 SOT-223 Figure 6 1 (35 m) 74 /W 2 (70 m) 51 /W 125 FIGURE 6. Maximum Power Dissipation vs T AMB for the SOT-223 Package http://www.national.com 12

millimeters 3-Lead SOT-223 Package Order Part Number IMP-5.0 IMP-8.0 IMP-9.0 IMP-10 IMP-12 IMP-15 NS Package Number MP04A 13 http://www.national.com

inches(millimeters) 3-Lead TO-220 Plastic Package (T) Order Number T-5.0, T-8.0, T-9.0, T-10, T-12, CT-5.0, CT-12 or CT-15 NS Package Number TO3B http://www.national.com 14

inches(millimeters) 1A 3 3-Lead TO-263 Surface Mount Package (MP) Order Number S-5.0, S-8.0, S-9.0, S-10, S-12, CS-5.0, CS-12 or CS-15 NS Package Number TS3B 1. (a) (b) 2. 135-0042 2-17-16 TEL.(03)5639-7300 / http://www.national.com/jpn/ 0120-666-116