LP2951 National Semiconductor, LP2951 Datasheet
LP2951
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LP2951 Summary of contents
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... The LP2950-5.0 is available in the surface-mount D-Pak package, and in the popular 3-pin TO-92 package for pin- compatibility with older 5V regulators. The 8-lead LP2951 is available in plastic, ceramic dual-in-line, LLP, or metal can packages and offers additional system functions. One such feature is an error flag output which warns of a low output voltage, often due to falling batteries on the input ...
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Connection Diagrams TO-92 Plastic Package (Z) Bottom View Dual-In-Line Packages (N, J) Surface-Mount Package (M, MM) Top View Metal Can Package (H) Top View 10-Lead Ceramic Surface-Mount Package (WG) Top View www.national.com 00854602 00854626 Pin 4 is fused to center ...
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... LP2951CM-3.0 LP2951CMX-3.0 LP2951ACM-3.3 LP2951ACMX-3.3 LP2951CM-3.3 LP2951CMX-3.3 LP2951ACM LP2951ACMX LP2951CM LP2951CMX < < MM −40 T 125 LP2951ACMM-3.0 J (MUA08A) LP2951ACMMX-3.0 LP2951CMM-3.0 LP2951CMMX-3.0 LP2951ACMM-3.3 LP2951ACMMX-3.3 LP2951CMM-3.3 LP2951CMMX-3.3 LP2951ACMM LP2951ACMMX LP2951CMM LP2951CMMX < < J (J08A) −55 T 150 LP2951J/883 J < < H (H08C) −55 T 150 LP2951H/883 J < < WG −55 T 150 ...
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... Part Number Range < < 8-lead −40 T 125 LP2951ACSD-3.0 J LLP LP2951ACSDX-3.0 LP2951CSD-3.0 LP2951CSDX-3.0 LP2951ACSD-3.3 LP2951ACSDX-3.3 LP2951CSD-3.3 LP2951CSDX-3.3 LP2951ACSD LP2951ACSDX LP2951CSD LP2951CSDX www.national.com (Continued) Package Marking 51AC30 51AC30B 51AC33 51AC33B 2951AC 2951ACB 4 Transport Media NSC Drawing 1k Units Tape and Reel SDC08A 4.5k Units Tape and Reel 1k Units Tape and Reel 4 ...
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... Operating Ratings −0.3 to +30V Maximum Input Supply Voltage Junction Temperature Range (T ) (Note 8) J LP2951 −1.5 to +30V LP2950AC-XX, LP2950C-XX, LP2951AC-XX, LP2951C-XX Internally Limited +150˚C −65˚ to +150˚C 4 seconds, 260˚C 10 seconds, 240˚C 75 seconds, 219˚C (Note 2) LP2951 LP2950AC-XX LP2951AC-XX ...
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... LP2951 LP2951AC-XX 1.235 1.25 1.235 1.25 1.26 1.22 1.22 1.2 1.27 1. LP2950C-XX LP2951C-XX Design Tested Design Units Limit Typ Limit Limit (Note 3) (Note 4) 4.94 4.9 V min 5.075 5.12 V max 5.0 4.925 4.88 V min 100 50 150 ppm/˚C 0.04 0.2 % max 0.2 0.4 % max 0.1 0.2 % max ...
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... Limits IN ONOM OUTPUT tied to SENSE, and V TAP SHUTDOWN ≤ 100mA, T ≤ JMAX 7 LP2950C-XX LP2951C-XX Design Tested Design Limit Typ Limit Limit (Note 3) (Note 4) 0.1 0.01 1 µA max 2 2 µA max 150 ...
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... The LP2951H, WG may also be procured as Standard Military Drawing Spec #5962-3870501MGA, MXA, or MPA. Note 17: All LP2950 devices have the nominal output voltage coded as the last two digits of the part number. In the LP2951 products, the 3.0V and 3.3V versions are designated by the last two digits, but the 5V version is denoted with no code at this location of the part number (refer to ordering information table). ...
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Typical Performance Characteristics Quiescent Current Input Current Output Voltage vs. Temperature of 3 Representative Units Dropout Characteristics 00854627 00854629 Quiescent Current 00854631 9 00854628 Input Current 00854630 00854632 www.national.com ...
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Typical Performance Characteristics Quiescent Current Quiescent Current Dropout Voltage www.national.com (Continued) Quiescent Current 00854633 Short Circuit Current 00854635 00854637 10 00854634 00854636 Dropout Voltage 00854638 ...
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... Typical Performance Characteristics LP2951 Minimum Operating Voltage LP2951 Feedback Pin Current LP2951 Comparator Sink Current (Continued) LP2951 Feedback Bias Current 00854639 LP2951 Error Comparator Output 00854641 Line Transient Response 00854643 11 00854640 00854642 00854644 www.national.com ...
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... Typical Performance Characteristics Load Transient Response LP2951 Enable Transient Ripple Rejection www.national.com (Continued) Load Transient Response 00854645 Output Impedance 00854647 00854649 12 00854646 00854648 Ripple Rejection 00854650 ...
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... Typical Performance Characteristics Ripple Rejection LP2951 Divider Resistance Line Regulation (Continued) LP2951 Output Noise 00854651 Shutdown Threshold Voltage 00854653 LP2951 Maximum Rated Output Current 00854655 13 00854652 00854654 00854656 www.national.com ...
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Typical Performance Characteristics LP2950 Maximum Rated Output Current Output Capacitor ESR Range www.national.com (Continued) Thermal Response 00854657 00854663 14 00854658 ...
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... V OUT at room temperature by trimming R choosing R = 100k reduces this error to 0.17% while in- 2 creasing the resistor program current to 12µA. Since the LP2951 typically draws 60µ load with Pin 2 open- circuited, this is a small price to pay 4.75V). OUT 00854620 as the pull-up ...
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Application Hints (Continued) *See Application Hints **Drive with TTL-high to shut down. Ground or leave open if shutdown feature is not to be used. Note: Pins 2 and 6 are left open. FIGURE 2. Adjustable Regulator Typical Applications 300mA Regulator ...
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Typical Applications (Continued) Low Drift Current Source Regulator with Early Warning and Auxiliary Output j Early warning flag on low input voltage j Main output latches off at lower input voltages j Battery backup on auxiliary output j Operation: Reg. ...
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Typical Applications For 5V , use internal resistors. Wire pin & wire pin out 5V Regulator with 2.5V Sleep Function *High input lowers V to 2.5V out www.national.com (Continued) 2 Ampere Low Dropout Regulator ...
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Typical Applications (Continued) *Optional Latch off when drop out occurs. Adjust R3 for C2 Switching when V **Outputs go low when V drops below designated thresholds. in For values shown, Regulator shuts down when V *Sets disconnect Voltage **Sets disconnect ...
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Typical Applications LM34 for 125˚F Shutdown LM35 for 125˚C Shutdown www.national.com (Continued) System Overtemperature Protection Circuit 20 00854618 ...
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... Physical Dimensions www.national.com inches (millimeters) unless otherwise noted Order Number LP2951WG/883 NS Package Number WG10A Metal Can Package (H) NS Package Number H08C 22 ...
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Physical Dimensions inches (millimeters) unless otherwise noted (Continued) Ceramic Dual-In-Line Package (J) NS Package Number J08A Surface Mount Package (M) NS Package Number M08A 23 www.national.com ...
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Physical Dimensions www.national.com inches (millimeters) unless otherwise noted (Continued) Molded Dual-In-Line Package (N) NS Package Number N08E Molded TO-92 Package (Z) NS Package Number Z03A 24 ...
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Physical Dimensions inches (millimeters) unless otherwise noted (Continued) Surface Mount Package (MM) NS Package Number MUA08A D-Pak Package NS Package Number TD03B 25 www.national.com ...
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