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| (R) LM2931 SERIES VERY LOW DROP VOLTAGE REGULATOR WITH INHIBIT FUNCTION s s s s s s s s s VERY LOW DROPOUT VOLTAGE (0.15V TYP. AT 10mA LOAD) LOW QUIESCENT CURRENT (TYP 2.5mA, AT 100mA LOAD) OUTPUT CURRENT UP TO 100mA ADJUSTABLE (FROM VOUT=2.5V ONLY SO-8) AND FIXED (3.3V & 5V) OUTPUT VOLTAGE VERSION INTERNAL CURRENT AND THERMAL LIMIT LOAD DUMP PROTECTION UP TO 60V REVERSE TRANSIENT PROTECTION UP TO -50V TEMPERATURE RANGE: -40 TO 125 oC PACKAGE AVAILABLE: TO-92, DPAK, TO-220, SO-8 (WITH INHIBIT CONTROL) SO-8 TO-92 TO-252 (DPAK) TO-220 DESCRIPTION The LM2931 series are very low drop regulators. The very low drop voltage and the low quiescent current make them particular suitable for low noise, low power applications and in battery powered systems. In the 8 pin configation (SO-8), fully compatible to the older L78L0 0 family, a shut down Logic Control function is available. This means that when the device is used as a BLOCK DIAGRAM local regulator is possible to put a part of the board in stand-by decreasing the total power consumption. Ideal for automotive application the LM2931 is proteceted from reverse battery installations or 2 battery jumps. During the transient, suchs as a a load dump (60V) when the input voltage can exceed the specified maximum operating input voltage (26V), the regulator will automatically shut down to protect both internal circuit and the load. November 2000 1/16 LM2931 SERIES ABSOLUTE MAXIMUM RATINGS Symbol V IN V IN V IN V IN V I NH IOUT T stg To p DC Positive Input Voltage DC Reverse Input Voltage Transient Input Voltage ( < 100ms) Transient Reverse Input Voltage ( < 100ms) Inhibit Input Voltage Output Current Storage Temperature Range Operating Junction Temperature Range Parameter Value 40 -15 60 -50 40 Internally Limited -65 to 150 -40 to 125 Unit V V V V V mA o o C C Absolute Maximum Ratings are those value beyond which damage to the device may occur. Functional operation under these condition is not implied. CONNECTION DIAGRAM AND ORDERING NUMBERS (top view) TO-220 DPAK BOTTOM VIEW (*) = N.C. for FIXED and ADJ for ADJUSTABLE pin 1 = OUT pin 2 = GND pin 3 = IN SO-8 TO-220 LM2931AV33 LM2931BV33 LM2931AV50 LM2931BV50 DPAK (*) LM2931ADT33 LM2931BDT33 LM2931ADT50 LM2931BDT50 TO-92 (*) LM2931AZ33 LM2931BZ33 LM2931AZ50 LM2931BZ50 TO-92 SO-8 (*) LM2931AD33 LM2931BD33 LM2931AD50 LM2931BD50 LM2931D Output Voltage 3.3V 3.3V 5V 5V 2.5V to 26V (*) Available in Tape & Reel with the suffix "R" for fixed version and "-R" for adjustable version. 2/16 LM2931 SERIES APPLICATION CIRCUIT FOR FIXED OUTPUT (Figure 1) APPLICATION CIRCUIT FOR ADJUSTABLE OUTPUT (Figure 2) R1 suggested Value = 27K R1 + R2 VO = VREF x R1 3/16 LM2931 SERIES ELECTRICAL CHARACTERISTICS FOR LM2931A 3.3V (refer to the test circuits, Tj = 25 oC, VIN = 14 V, CIN = 0.1 F, CO = 100 F, IO = 10mA, VINH = 0V unless otherwise specified) Symbol VI VO VO V O V O V O Vd Vd Id Id I SC SVR VI L V IH I INH V IN V IN V IN eN Parameter Maximum Operating Input Voltage Output Voltage Output Voltage Line Regulation Line Regulation Load Regulation Dropout Voltage (Note 1, 2) Dropout Voltage (Note 1, 2) Quiescent Current Quiescent Current Short Circuit Current Supply Voltage Rejection Control Input Voltage Control Input Voltage Inhibit Input Current Transient Input Voltage Reverse Polarity Input Voltage Reverse Polarity Input Voltage Transient Output Noise Voltage IO = 100 mA f = 120 Hz VIN = 14 2V Tj = -40 to 125 oC o Test Conditions IO = 10 mA Tj = -40 to 125 oC Min. 26 3.175 Typ. 37 3.3 3.3 2 4 10 90 250 2.5 0.3 Max. Unit V 3.425 3.465 10 33 33 250 600 30 1 V V mV mV mV mV mV mA mA mA dB IO = 100 mA VIN = 6 to 26 V Tj = -40 to 125 oC VIN = 9 to 16 V VIN = 6 to 26 V IO = 5 to 100 mA IO = 10 mA IO = 100 mA ON Mode: IOUT = 100mA OFF Mode: VINH = 2.5 V RLOAD = 330 3.135 100 55 300 78 2 1.2 50 Tj = -40 to 125 oC Tj = -40 to 125 C VINH = 2.5 V RLOAD = 330 VO 0.3V RLOAD = 330 < 100ms RLOAD = 330 < 100ms 60 -15 -50 3.25 V V A V V V 2 22 70 -50 B = 10Hz to 100KHz 330 V RMS Note 1: Reference Voltage is measured from VOUT to AJD pin. Note 2: Vd measured when the output voltage has dropped 100mV from the nominal value obtained at 14V. 4/16 LM2931 SERIES ELECTRICAL CHARACTERISTICS FOR LM2931B 3.3V (refer to the test circuits, Tj = 25 oC, VIN = 14 V, CIN = 0.1 F, CO = 100 F, IO = 10mA, VINH = 0V unless otherwise specified) Symbol VI VO VO V O V O V O Vd Vd Id Id I SC SVR VI L V IH I INH V IN V IN V IN eN Parameter Maximum Operating Input Voltage Output Voltage Output Voltage Line Regulation Line Regulation Load Regulation Dropout Voltage (Note 1, 2) Dropout Voltage (Note 1, 2) Quiescent Current Quiescent Current Short Circuit Current Supply Voltage Rejection Control Input Voltage Control Input Voltage Inhibit Input Current Transient Input Voltage Reverse Polarity Input Voltage Reverse Polarity Input Voltage Transient Output Noise Voltage IO = 100 mA f = 120 Hz VIN = 14 2V Tj = -40 to 125 oC o Test Conditions IO = 10 mA Tj = -40 to 125 oC Min. 26 3.135 Typ. 37 3.3 3.3 2 4 10 90 250 2.5 0.3 Max. Unit V 3.465 3.63 10 33 33 200 600 30 1 V V mV mV mV mV mV mA mA mA dB IO = 100 mA VIN = 6 to 26 V Tj = -40 to 125 oC VIN = 9 to 16 V VIN = 6 to 26 V IO = 5 to 100 mA IO = 10 mA IO = 100 mA ON Mode: IOUT = 100mA OFF Mode: VINH = 2.5 V RLOAD = 330 2.97 100 55 300 78 2 1.2 50 Tj = -40 to 125 oC Tj = -40 to 125 C VINH = 2.5 V RLOAD = 330 VO 0.3V RLOAD = 330 < 100ms RLOAD = 330 < 100ms 60 -15 -50 3.25 V V A V V V 2 22 70 -50 B = 10Hz to 100KHz 330 V RMS Note 1: Reference Voltage is measured from VOUT to AJD pin. Note 2: Vd measured when the output voltage has dropped 100mV from the nominal value obtained at 14V. 5/16 LM2931 SERIES ELECTRICAL CHARACTERISTICS FOR LM2931A 5V (refer to the test circuits, Tj = 25 oC, VIN = 14 V, CIN = 0.1 F, CO = 100 F, IO = 10mA, VINH = 0V unless otherwise specified) Symbol VI VO VO V O V O V O Vd Vd Id Id I SC SVR VI L V IH I INH V IN V IN V IN eN Parameter Maximum Operating Input Voltage Output Voltage Output Voltage Line Regulation Line Regulation Load Regulation Dropout Voltage (Note 1, 2) Dropout Voltage (Note 1, 2) Quiescent Current Quiescent Current Short Circuit Current Supply Voltage Rejection Control Input Voltage Control Input Voltage Inhibit Input Current Transient Input Voltage Reverse Polarity Input Voltage Reverse Polarity Input Voltage Transient Output Noise Voltage IO = 100 mA f = 120 Hz VIN = 14 2V Tj = -40 to 125 oC o Test Conditions IO = 10 mA Tj = -40 to 125 oC Min. 26 4.81 Typ. 37 5 5 2 4 15 90 250 2.5 0.3 Max. Unit V 5.19 5.25 10 30 50 200 600 30 1 V V mV mV mV mV mV mA mA mA dB IO = 100 mA VIN = 6 to 26 V Tj = -40 to 125 oC VIN = 9 to 16 V VIN = 6 to 26 V IO = 5 to 100 mA IO = 10 mA IO = 100 mA ON Mode: IOUT = 100mA OFF Mode: VINH = 2.5 V RLOAD = 500 4.75 100 55 300 75 2 1.2 50 Tj = -40 to 125 oC Tj = -40 to 125 C VINH = 2.5 V RLOAD = 500 VO 0.3V RLOAD = 500 < 100ms RLOAD = 500 < 100ms 60 -15 -50 3.25 V V A V V V 2 22 70 -50 B = 10Hz to 100KHz 500 V RMS Note 1: Reference Voltage is measured from VOUT to AJD pin. Note 2: Vd measured when the output voltage has dropped 100mV from the nominal value obtained at 14V. 6/16 LM2931 SERIES ELECTRICAL CHARACTERISTICS FOR LM2931B 5V (refer to the test circuits, Tj = 25 oC, VIN = 14 V, CIN = 0.1 F, CO = 100 F, IO = 10mA, VINH = 0V unless otherwise specified) Symbol VI VO VO V O V O V O Vd Vd Id Id I SC SVR VI L V IH I INH V IN V IN V IN eN Parameter Maximum Operating Input Voltage Output Voltage Output Voltage Line Regulation Line Regulation Load Regulation Dropout Voltage (Note 1, 2) Dropout Voltage (Note 1, 2) Quiescent Current Quiescent Current Short Circuit Current Supply Voltage Rejection Control Input Voltage Control Input Voltage Inhibit Input Current Transient Input Voltage Reverse Polarity Input Voltage Reverse Polarity Input Voltage Transient Output Noise Voltage IO = 100 mA f = 120 Hz VIN = 14 2V Tj = -40 to 125 oC o Test Conditions IO = 10 mA Tj = -40 to 125 oC Min. 26 4.75 Typ. 37 5 5 2 4 15 90 250 2.5 0.3 Max. Unit V 5.25 5.5 10 30 50 200 600 30 1 V V mV mV mV mV mV mA mA mA dB IO = 100 mA VIN = 6 to 26 V Tj = -40 to 125 oC VIN = 9 to 16 V VIN = 6 to 26 V IO = 5 to 100 mA IO = 10 mA IO = 100 mA ON Mode: IOUT = 100mA OFF Mode: VINH = 2.5 V RLOAD = 330 4.5 100 55 300 75 2 1.2 50 Tj = -40 to 125 oC Tj = -40 to 125 C VINH = 2.5 V RLOAD = 500 VO 0.3V RLOAD = 500 < 100ms RLOAD = 500 < 100ms 60 -15 -50 3.25 V V A V V V 2 22 70 -50 B = 10Hz to 100KHz 500 V RMS Note 1: Reference Voltage is measured from VOUT to AJD pin. Note 2: Vd measured when the output voltage has dropped 100mV from the nominal value obtained at 14V. 7/16 LM2931 SERIES ELECTRICAL CHARACTERISTICS FOR LM2931ADJ (refer to the test circuits figure 2 with R1 =27K and R2 =40.5K, Tj = 25 oC, VIN = 14 V, CIN = 0.1 F, CO = 100 F, IO = 10mA, VINH = 0V unless otherwise specified) Symbol VI V REF V REF V O V O Vd Vd Id Id I SC SVR VI L V IH I INH V IN V IN V IN eN Parameter Maximum Operating Input Voltage Reference Voltage(Note 1) Reference Voltage(Note 1) Line Regulation Load Regulation Dropout Voltage (Note 1, 2) Dropout Voltage (Note 1, 2) Quiescent Current Quiescent Current Short Circuit Current Supply Voltage Rejection Control Input Voltage Control Input Voltage Inhibit Input Current Transient Input Voltage Reverse Polarity Input Voltage Reverse Polarity Input Voltage Transient Output Noise Voltage IO = 100 mA f = 120 Hz VIN = 14 2V Tj = -40 to 125 oC o Test Conditions IO = 10 mA Tj = -40 to 125 oC Min. 26 1.14 Typ. 37 1.2 1.2 0.6 9 90 250 2.5 0.3 Max. Unit V 1.26 1.32 4.5 30 200 600 30 1 V V mV mV mV mV mA mA mA dB IO = 100 mA IO = 5 to 100 mA IO = 10 mA IO = 100 mA Tj = -40 to 125 C o 1.08 VIN = 3.6 to 26 V ON Mode: IOUT = 100mA OFF Mode: VINH = 2.5 V RLOAD = 300 100 55 300 80 2 1.2 50 Tj = -40 to 125 oC Tj = -40 to 125 C VINH = 2.5 V RLOAD = 300 VO 0.3V RLOAD = 300 < 100ms RLOAD = 300 < 100ms 60 -15 -50 3.25 V V A V V V 2 22 70 -50 B = 10Hz to 100KHz 330 V RMS Note 1: Reference Voltage is measured from VOUT to AJD pin. Note 2: Vd measured when the output voltage has dropped 100mV from the nominal value obtained at 14V. 8/16 LM2931 SERIES TYPICAL CHARACTERISTICS (unless otherwise specified CIN=0.1F, CO=100F) Output Voltage vs Temperature Output Voltage vs Temperature Referece Voltage vs Temperature Line Regulation vs Temperature Load Regulation vs Temperature Dropout Voltage vs Temperature 9/16 LM2931 SERIES TYPICAL CHARACTERISTICS (Continued) Dropout Voltage vs Temperature Dropout Voltage vs Output Current Output Voltage vs Input Voltage Short Circuit Current vs Drop Voltage Quiescent Current vs Temperature Quiescent Current vs Input Voltage 10/16 LM2931 SERIES TYPICAL CHARACTERISTICS (Continued) Quiescent Current vs Output Current Supply Voltage Rejection vs Temperature Supply Voltage Rejection vs Frequency Supply Voltage Rejection vs Output Current Line Transient Load Transient 11/16 LM2931 SERIES TO-220 MECHANICAL DATA DIM. MIN. A C D D1 E F F1 F2 G G1 H2 L2 L4 L5 L6 L7 L9 DIA. 13.0 2.65 15.25 6.2 3.5 3.75 0.49 0.61 1.14 1.14 4.95 2.4 10.0 16.4 14.0 2.95 15.75 6.6 3.93 3.85 0.511 0.104 0.600 0.244 0.137 0.147 E mm TYP. MAX. 4.60 1.32 2.72 1.27 0.70 0.88 1.70 1.70 5.15 2.7 10.40 0.019 0.024 0.044 0.044 0.194 0.094 0.393 MIN. 0.173 0.048 0.094 4.40 1.23 2.40 inch TYP. MAX. 0.181 0.051 0.107 0.050 0.027 0.034 0.067 0.067 0.203 0.106 0.409 0.645 0.551 0.116 0.620 0.260 0.154 0.151 A C D1 L2 F1 D G1 Dia. F2 F L5 L7 L6 L9 L4 G 12/16 H2 P011C LM2931 SERIES TO-252 (DPAK) MECHANICAL DATA mm MIN. A A1 A2 B B2 C C2 D E G H L2 L4 0.6 2.2 0.9 0.03 0.64 5.2 0.45 0.48 6 6.4 4.4 9.35 0.8 1 0.023 TYP. MAX. 2.4 1.1 0.23 0.9 5.4 0.6 0.6 6.2 6.6 4.6 10.1 MIN. 0.086 0.035 0.001 0.025 0.204 0.017 0.019 0.236 0.252 0.173 0.368 0.031 0.039 inch TYP. MAX. 0.094 0.043 0.009 0.035 0.212 0.023 0.023 0.244 0.260 0.181 0.397 DIM. H A C2 C DETAIL "A" A1 L2 D DETAIL "A" B = = 3 B2 = = G E 2 L4 1 = = A2 0068772-B 13/16 LM2931 SERIES SO-8 MECHANICAL DATA DIM. MIN. A a1 a2 a3 b b1 C c1 D E e e3 F L M S 3.8 0.4 4.8 5.8 1.27 3.81 4.0 1.27 0.6 8 (max.) 0.14 0.015 5.0 6.2 0.65 0.35 0.19 0.25 0.1 mm TYP. MAX. 1.75 0.25 1.65 0.85 0.48 0.25 0.5 45 (typ.) 0.188 0.228 0.050 0.150 0.157 0.050 0.023 0.196 0.244 0.025 0.013 0.007 0.010 0.003 MIN. inch TYP. MAX. 0.068 0.009 0.064 0.033 0.018 0.010 0.019 0016023 14/16 LM2931 SERIES TO-92 MECHANICAL DATA mm DIM. MIN. TYP. MAX. MIN. inch TYP. MAX. A 4.58 5.33 0.180 0.210 B 4.45 5.2 0.175 0.204 C 3.2 4.2 0.126 0.165 D 12.7 0.500 E 1.27 0.050 F 0.4 0.51 0.016 0.020 G 0.35 0.14 15/16 LM2931 SERIES Information furnished is believed to be accurate and reliable. However, STMicroelectronic s assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specification mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems withoutexpress written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics (c) 2000 STMicroelectronics - Printed in Italy - All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Brazil - China - Finland - France - Germany - Hong Kong - India - Italy - Japan - Malaysia - Malta - Morocco Singapore - Spain - Sweden - Switzerland - United Kingdom - U.S.A. http://www.st.com . 16/16 |
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