2951 LP 2950 LP 19850603 33200 24060 LP2950 LP2951 ( 75 A) ( 40mV 100mA 380mV) LP2950-5.0 D-Pak 3 TO-92 5V LP2951 8 (DIP) LLP 8 1 1 / 3V 3.3V 5V ( ) 1.24V 29V ( 0.5%) ( 0.05%) 11800 DS008546 fixed the pid info in the admin.info section. added ESR curve & Feature bullet. wg Minor change to ESR curve title. wg Adjusted fig. placement in Apps section, corrected TO-92 order info (LP2950CA-3.0 > LP2950CZ-3.0). wg composed the same. Removed newpage commands in apps section. wg added PI before the second apps division to test. SN SGMLFIX: PR16.doc Fixed (cam) SGMLFIX: PR8.doc Fixed (cam) SGMLFIX: PR4.doc Fixed (cam) SGMLFIX: PR1.doc Fixed (cam) Mil-Aero: Replaced E package with WG. Still need update Figure Entities for pinout & mech dwg. WG Mil-Aero: Added fig. entities for pinout & mech dwg, & linked them. Ready to compose once pinout dwg is done. WG added info. about the D-pak package per Darryl. SN cleanup of D-pak order numbers. WG Junction-to-case thermal resistance for the TO-252 packagechanged from 5 to 5.4 /W per Darryl P. SN removed the D-pak for 3.0V and 3.3V from the ordering info table per Darryl. SN 2005 5 3V 3.3V 5V 100mA ESR (10m 6 ) LP2951 1.24V 29V LP2950 LP2951 20000118 National Semiconductor Corporation DS008546-19-JP 1
TO-92 Plastic Package (Z) TO-252 (D-Pak) Bottom View Dual-In-Line Packages (N) Surface-Mount Package (M, MM) Front View 8-Lead LLP Top View 4 DAP Top View 2
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(Note 1) 0.3V 30V (Note 9) (Note 9 10) 1.5V 30V (T J ) 150 65 150 ESD (Note 18) (Note 1) (T J ) (Note 8) LP2950AC-XX, LP2950C-XX, LP2951AC-XX, LP2951C-XX 4 260 10 240 75 219 2500V 30V 40 125 (Note 2) 5
(Note 2) ( ) 6
(Note 2) ( ) Note 1: Note 2: V IN (V ONOM 1) V I L 100 A 5V C L 1 F 3V 3.3V C L 2.2 F T A T J 25 8 FB V TAP V out SENSE V SHUTDOWN 0.8V Note 3: Note 4: Note 5: 1V 100mV 2V ( 2.3V) Note 6: V in (V O NOM 1) V FB V out /V ref (R1 R2)/R2 5V 95mV 5V/1.235V 384mV ERROR Low V out V out 5% 7.5% Note 7: V ref V out (V in 1V) 2.3V V in 30V 100 A I L 100mA T J T JMAX Note 8: TO-92 - PC 0.4 180 /W 0.25 160 /W 8 DIP(N) 105 /W SOP (M) 160 /W MSOP (MM) 200 /W PCB TO-252-5.4 /W LLP JA 51 /W LLP AN-1187 Note 9: Note 10: Note 11: V SHUTDOWN 2V V in 30V V out 0 FB V TAP 7
(Note 2) ( ) Note 12: Note 13: T T 10ms V IN 30V (1.25W ) 50mA Note 14: Note 15: LP2951 I L 1mA 150 I L 100 A T J 125 0.2% Note 16: ( ) Note 17: LP2950 2 LP2951 3.0V 3.3V 2 5V ( ) Note 18: 100pF 1.5K 8
Quiescent Current Dropout Characteristics Input Current Input Current Output Voltage vs. Temperature of 3 Representative Units Quiescent Current 9
( ) Quiescent Current Quiescent Current Quiescent Current Short Circuit Current Dropout Voltage Dropout Voltage 10
( ) LP2951 Minimum Operating Voltage LP2951 Feedback Bias Current LP2951 Feedback Pin Current LP2951 Error Comparator Output LP2951 Comparator Sink Current Line Transient Response 11
( ) Load Transient Response Load Transient Response LP2951 Enable Transient Output Impedance Ripple Rejection Ripple Rejection 12
( ) Ripple Rejection LP2951 Output Noise LP2951 Divider Resistance Shutdown Threshold Voltage Line Regulation LP2951 Maximum Rated Output Current 13
( ) LP2950 Maximum Rated Output Current Thermal Response Output Capacitor ESR Range 14
5V 1.0 F ( ) (3V 3.3V 2.2 F ) 30 25 5 ESR 500KHz 1,000pF LP2951 ESR 5m 10m ( "Output Capacitor ESR Range" ) ESR ESR ESR ( 0.1 2 ) 10mA 0.33 F 1mA 0.1 F 5V 1.23V( FB ) 100mA 3.3 F ( ) LP2950 CMOS RAM LP2951 1 A AC 10 1 F LP2951 FB FB 100pF 3.3 F Figure 1 LP2951 ERROR 5V 1.3V ERROR (Low) 5V (V OUT 4.75V ) High LP2951 ( ) ( 5V) ( 4.75V) (400 A) 100k 1M ERROR * V IN 1.3V 5V V OUT (Figure 2 ) 1.2V ( ) Low High (10k ) FIGURE 1. ERROR Output Timing (LP2951) LP2951 SENSE FB V TAP 1.235V 30V Figure 2 1 (R 1 R 2 ) LP2951 5% Low 5% 60mV 1.235V ( 1 ) LP2951 5% 5V 4.75V ( ) 12V 11.4V V REF 1.235V I FB 20nA ( CMOS ) 1 A R 2 1.2M I FB V OUT 2% ( ) R 1 R 2 100K ( ) 0.17% 12 A LP2951 ( 2 ) 60 A ( ) 15
( ) AC 1 3 LP2950 1 F 220 F 5V 100KHz 430 V 160 V rms R 1 4 1 1/4 0.01 F * ** TTL High Note: 2 6 FIGURE 2. Adjustable Regulator 3.3 F 5V 100KHz 430 V 100 V rms 1A Regulator with 1.2V Dropout 300 ma Regulator with 0.75V Dropout Wide Input Voltage Range Current Limiter * 40mV 400mV 160mA( ) 16
( ) Low Drift Current Source 5 Volt Current Limiter * 40mV 400mV 160mA( ) Regulator with Early Warning and Auxiliary Output Latch Off When Error Flag Occurs Reg.#1 V out 5V V in 5.7V V in 5.3V Reg.#2 Q1 V in 5.7V Reg.#1 High D3 Reg.#2 17
( ) 2 Ampere Low Dropout Regulator 5.0V 6 7 2 V out 5V Regulator with 2.5V Sleep Function Open Circuit Detector for 4 20 ma Current Loop * High V out 2.5V 18
( ) Regulator with State-of-Charge Indicator * ( ) V in 6V C2 R3 ** V in Low Low Battery Disconnect V in 5.5V 6V 150 A * ** 19
( ) System Overtemperature Protection Circuit LM34 for 125 F Shutdown LM35 for 125 Shutdown 20
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inches (millimeters) ( ) Surface Mount Package (M) NS Package Number M08A 22
inches (millimeters) ( ) Molded Dual-In-Line Package (N) NS Package Number N08E Molded TO-92 Package (Z) NS Package Number Z03A 23
inches (millimeters) ( ) Surface Mount Package (MM) NS Package Number MUA08A D-Pak Package NS Package Number TD03B millimeters 24
inches (millimeters) ( ) LLP Package NS Package Number SDC08A millimeters www.national.com 1. (a) (b) 2. CSP-9-111C2 (Customer Products Stewardship Specification) CSP-9-111S2 (Banned Substances and Materials of Interest Specification) CSP-9-111S2 135-0042 2-17-16 / TEL.(03)5639-7300