L4931ABxx L4931Cxx Very low drop voltage regulators with inhibit Features Very low dropout voltage (0.4 V) Very low quiescent current (Typ. 50 A in off mode, 600 A in on mode) Output current up to 250 mA Logic-controlled electronic shutdown Output voltages of 2.7; 3.3; 3.5; 5; 8; 12 V Automotive Grade product: 2.7 V, 3.3 V, 3.5 V VOUT only in SO-8 package Internal current and thermal limit Only 2.2 F for stability Available in 1 % (AB) or 2 % (C) selection at 25 C Supply voltage rejection: 70 dB typ. for 5 V version Temperature range: -40 to 125 C TO-92 TO-220 PPAK DPAK SO-8 This means that when the device is used as a local regulator, it is possible to put a part of the board in standby, decreasing the total power consumption. It requires only a 2.2 F capacitor for stability allowing space and cost saving. Description The L4931ABxx L4931Cxx are very Low Drop regulators available in TO-220, SO-8, DPAK, PPAK and TO-92 packages and in a wide range of output voltages. The very low drop voltage (0.4 V) and the very low quiescent current make them particularly suitable for low noise, low power applications and specially in battery powered systems. The L4931 is available as Automotive Grade in SO-8 package only, for the options of output voltages whose commercial Part Numbers are shown in the Table 19 on page 34 (order codes). These devices are qualified according to the specification AEC-Q100 of the Automotive market, in the temperature range -40 C to 125 C, and the statistical tests PAT, SYL, SBL are performed. A TTL compatible shutdown logic control function is available in PPAK and SO-8 packages. Table 1. Device summary Part numbers L4931ABXX27 L4931CXX33 L4931ABXX50 L4931CXX80 L4931CXX27 L4931ABXX35 L4931CXX50 L4931ABXX120 L4931ABXX33 L4931CXX35 L4931ABXX80 L4931CXX120 August 2008 Rev 17 1/36 www.st.com 36 Contents L4931ABxx - L4931Cxx Contents 1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4 Application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 6 Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 7 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 8 Order codes 9 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 2/36 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 L4931ABxx - L4931Cxx List of figures List of figures Figure 1. Figure 2. Figure 3. Figure 4. Figure 5. Figure 6. Figure 7. Figure 8. Figure 9. Schematic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Pin connections (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Line regulation vs temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Dropout voltage vs temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Supply current vs input voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Supply current vs temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Short circuit current vs dropout voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 SVR vs input voltage signal frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 3/36 List of tables L4931ABxx - L4931Cxx List of tables Table 1. Table 2. Table 3. Table 4. Table 5. Table 6. Table 7. Table 8. Table 9. Table 10. Table 11. Table 12. Table 13. Table 14. Table 15. Table 16. Table 17. Table 18. Table 19. Table 20. 4/36 Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Electrical characteristics of L4931ABxx27 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Electrical characteristics of L4931Cxx27 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Electrical characteristics of L4931Cxx27-TRY (Automotive Grade) . . . . . . . . . . . . . . . . . . 11 Electrical characteristics of L4931ABxx33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Electrical characteristics of L4931Cxx33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Electrical characteristics of L4931Cxx33-TRY (Automotive Grade) . . . . . . . . . . . . . . . . . . 14 Electrical characteristics of L4931ABxx35 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Electrical characteristics of L4931ABxx35-TRY (Automotive Grade) . . . . . . . . . . . . . . . . . 16 Electrical characteristics of L4931Cxx35 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Electrical characteristics of L4931ABxx50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Electrical characteristics of L4931Cxx50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Electrical characteristics of L4931ABxx80 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Electrical characteristics of L4931Cxx80 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Electrical characteristics of L4931ABxx120 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Electrical characteristics of L4931Cxx120 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 L4931ABxx - L4931Cxx 1 Diagram Figure 1. Schematic diagram Diagram 5/36 Pin configuration L4931ABxx - L4931Cxx 2 Pin configuration Figure 2. Pin connections (top view) TO-220 SO-8 PPAK DPAK PIN 1 = VOUT PIN 2 = GND PIN 3 = VIN TO-92 6/36 BOTTOM VIEW L4931ABxx - L4931Cxx Maximum ratings 3 Maximum ratings Table 2. Absolute maximum ratings Symbol Parameter Value Unit 20 V VI DC Input voltage IO Output current Internally limited mA PD Power dissipation Internally limited mW TSTG Storage temperature range -40 to 150 C TOP Operating junction temperature range -40 to 125 C Note: Absolute maximum ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied Table 3. Thermal data Symbol Parameter TO-220 SO-8 DPAK PPAK RthJC Thermal resistance junction-case 3 20 8 8 RthJA Thermal resistance junction-ambient 50 55 100 100 TO-92 Unit C/W 200 C/W 7/36 Application circuit 4 Application circuit Figure 3. Test circuit 8/36 L4931ABxx - L4931Cxx L4931ABxx - L4931Cxx Electrical characteristics 5 Electrical characteristics Table 4. Electrical characteristics of L4931ABxx27 (refer to the test circuits, TA = 25 C, CI = 0.1 F, CO = 2.2 F unless otherwise specified). Symbol Parameter VO Output voltage VI Operating input voltage Iout Output current limit VO Line regulation VO Id SVR Typ. Max. IO = 5 mA, VI = 4.7 V 2.673 2.7 2.727 IO = 5 mA, VI = 4.7 V, TA=-25 to 85C 2.646 Unit V 2.754 IO = 250 mA 20 300 V mA 3 15 mV VI = 3.6 V, IO = 0.5 to 250 mA 3 15 mV 0.6 1 VI = 3.6 to 20 V, IO = 250 mA 4 6 OFF MODE VI = 6 V 50 100 Supply voltage rejection IO = 5 mA VI = 4.6 1 V Load regulation Quiescent current ON MODE Output noise voltage Vd Dropout voltage (1) VIL VIH CO Min. VI = 3.4 to 20 V, IO = 0.5 mA (1) eN II Test conditions VI = 3.6 to 20 V, IO = 0 mA mA f = 120 Hz 74 f = 1 kHz 71 f = 10 kHz 55 B = 10 Hz to 100 kHz 50 IO = 250 mA 0.4 A dB V 0.6 V IO = 250 mA, TA= -40 to 125C 0.8 V Control input logic low TA = -40 to 125C 0.8 V Control Input Logic High TA = -40 to 125C Control input current VI = 6 V, VC = 6 V Output bypass capacitance ESR = 0.1 to 10 , IO = 0 to 250 mA 2 2 V 10 A 10 F 1. For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV. 9/36 Electrical characteristics Table 5. Symbol Electrical characteristics of L4931Cxx27 (refer to the test circuits, TA = 25 C, CI = 0.1 F, CO = 2.2 F unless otherwise specified). Parameter VO Output voltage VI Operating input voltage Iout Output current limit VO Line regulation VO Id SVR Min. Typ. Max. IO = 5 mA, VI = 4.7 V 2.646 2.7 2.754 IO = 5 mA, VI = 4.7 V, TA=-25 to 85C 2.592 V 2.808 IO = 250 mA 20 300 V mA 18 mV VI = 3.6 V, IO = 0.5 to 250 mA 3 18 mV 0.6 1 VI = 3.6 to 20 V, IO = 250 mA 4 6 OFF MODE VI = 6 V 50 100 Supply voltage rejection IO = 5 mA VI = 4.6 1 V Load regulation Quiescent current ON MODE Vd Dropout voltage (1) VIL VIH VI = 3.6 to 20 V, IO = 0 mA mA f = 120 Hz 74 f = 1 kHz 71 f = 10 kHz 55 B = 10 Hz to 100 kHz 50 IO = 250 mA 0.4 A dB V 0.6 V IO = 250 mA, TA= -40 to 125C 0.8 V Control input logic low TA = -40 to 125C 0.8 V Control Input Logic High TA = -40 to 125C Control input current VI = 6 V, VC = 6 V Output bypass capacitance ESR = 0.1 to 10 , IO = 0 to 250 mA 2 2 1. For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV. 10/36 Unit 3 Output noise voltage CO Test conditions VI = 3.4 to 20 V, IO = 0.5 mA (1) eN II L4931ABxx - L4931Cxx V 10 A 10 F L4931ABxx - L4931Cxx Table 6. Symbol Electrical characteristics Electrical characteristics of L4931Cxx27-TRY (Automotive Grade) (refer to the test circuits, TA = -40 to 12 5C, CI = 0.1 F, CO = 2.2 F unless otherwise specified). Parameter Test conditions Min. Typ. Max. IO = 5 mA, VI = 4.7 V, TA = 25C 2.646 2.7 2.754 IO = 5 mA, VI = 4.7 V 2.592 Unit VO Output voltage VI Operating input voltage IO = 250 mA Iout Output current limit TA = 25C VO Line regulation VI = 3.4 to 20 V, IO = 0.5 mA 20 mV VO Load regulation VI = 3.6 V, IO = 0.5 to 250 mA 38 mV Quiescent current ON MODE VI = 3.6 to 20 V, IO = 0 mA 1 VI = 3.6 to 20 V, IO = 250 mA 6 Id SVR OFF MODE VI = 6 V Supply voltage rejection IO = 5 mA VI = 4.6 1 V TA = 25C eN Output noise voltage Vd Dropout voltage VIL Control input logic low VIH Control Input Logic High II CO V 2.808 20 300 mA mA 100 f = 120 Hz 74 f = 1 kHz 71 f = 10 kHz 55 B = 10 Hz to 100 kHz, TA = 25C 50 IO = 250 mA, TA = 25C 0.4 IO = 250 mA 2 Control input current VI = 6 V, VC = 6 V, TA = 25C Output bypass capacitance ESR = 0.1 to 10 , IO = 0 to 250 mA, TA = 25C V 2 A dB V 0.6 V 0.82 V 0.82 V V 10 A 10 F 11/36 Electrical characteristics Table 7. Symbol Electrical characteristics of L4931ABxx33 (refer to the test circuits, TA = 25 C, CI = 0.1 F, CO = 2.2 F unless otherwise specified). Parameter VO Output voltage VI Operating input voltage Iout Output current limit VO Line regulation VO Id SVR Min. Typ. Max. IO = 5 mA, VI = 5.3 V 3.267 3.3 3.333 IO = 5 mA, VI = 5.3 V, TA=-25 to 85C 3.234 V 3.366 IO = 250 mA 20 300 V mA 15 mV VI = 4.2 V, IO = 0.5 to 250 mA 3 15 mV 0.6 1 VI = 4.2 to 20 V, IO = 250 mA 4 6 OFF MODE VI = 6 V 50 100 Supply voltage rejection IO = 5 mA VI = 5.2 1 V Load regulation Quiescent current ON MODE Vd Dropout voltage (1) VIL VIH VI = 4.2 to 20 V, IO = 0 mA mA f = 120 Hz 73 f = 1 kHz 70 f = 10 kHz 55 B = 10 Hz to 100 kHz 50 IO = 250 mA 0.4 A dB V 0.6 V IO = 250 mA, TA= -40 to 125C 0.8 V Control input logic low TA = -40 to 125C 0.8 V Control Input Logic High TA = -40 to 125C Control input current VI = 6 V, VC = 6 V Output bypass capacitance ESR = 0.1 to 10 , IO = 0 to 250 mA 2 2 1. For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV. 12/36 Unit 3 Output noise voltage CO Test conditions VI = 4 to 20 V, IO = 0.5 mA (1) eN II L4931ABxx - L4931Cxx V 10 A 10 F L4931ABxx - L4931Cxx Table 8. Symbol Electrical characteristics of L4931Cxx33 (refer to the test circuits, TA = 25 C, CI = 0.1 F, CO = 2.2 F unless otherwise specified). Parameter VO Output voltage VI Operating input voltage Iout Output current limit VO Line regulation VO Id SVR Min. Typ. Max. IO = 5 mA, VI = 5.3 V 3.234 3.3 3.366 IO = 5 mA, VI = 5.3 V, TA=-25 to 85C 3.168 Unit V 3.432 IO = 250 mA 20 300 V mA 3 18 mV VI = 4.3 V, IO = 0.5 to 250 mA 3 18 mV 0.6 1 VI = 4.3 to 20 V, IO = 250 mA 4 6 OFF MODE VI = 6 V 50 100 Supply voltage rejection IO = 5 mA VI = 5.3 1 V Load regulation Quiescent current ON MODE Output noise voltage Vd Dropout voltage (1) VIL VIH CO Test conditions VI = 4.1 to 20 V, IO = 0.5 mA (1) eN II Electrical characteristics VI = 4.3 to 20 V, IO = 0 mA mA f = 120 Hz 73 f = 1 kHz 70 f = 10 kHz 55 B = 10 Hz to 100 kHz 50 IO = 250 mA 0.4 A dB V 0.6 V IO = 250 mA, TA= -40 to 125C 0.8 V Control input logic low TA = -40 to 125C 0.8 V Control Input Logic High TA = -40 to 125C Control input current VI = 6 V, VC = 6 V Output bypass capacitance ESR = 0.1 to 10 , IO = 0 to 250 mA 2 2 V 10 A 10 F 1. For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV. 13/36 Electrical characteristics Table 9. Symbol L4931ABxx - L4931Cxx Electrical characteristics of L4931Cxx33-TRY (Automotive Grade) (refer to the test circuits, TA = -40 to 125 C, CI = 0.1 F, CO = 2.2 F unless otherwise specified). Parameter Test conditions Min. Typ. Max. IO = 5 mA, VI = 5.3 V, TA = 25C 3.234 3.3 3.366 IO = 5 mA, VI = 5.3 V 3.168 Unit VO Output voltage VI Operating input voltage IO = 250 mA Iout Output current limit TA = 25C VO Line regulation VI = 4.1 to 20 V, IO = 0.5 mA 20 mV VO Load regulation VI = 4.3 V, IO = 0.5 to 250 mA 38 mV Quiescent current ON MODE VI = 4.3 to 20 V, IO = 0 mA 1 VI = 4.3 to 20 V, IO = 250 mA 6 Id SVR OFF MODE VI = 6 V Supply voltage rejection IO = 5 mA VI = 5.3 1 V TA = 25C eN Output noise voltage Vd Dropout voltage VIL Control input logic low VIH Control Input Logic High II CO 14/36 V 3.432 20 300 mA mA 100 f = 120 Hz 73 f = 1 kHz 70 f = 10 kHz 55 B = 10 Hz to 100 kHz, TA = 25C 50 IO = 250 mA, TA = 25C 0.4 IO = 250 mA 2 Control input current VI = 6 V, VC = 6 V, TA = 25C Output bypass capacitance ESR = 0.1 to 10 , IO = 0 to 250 mA, TA = 25C V 2 A dB V 0.6 V 0.82 V 0.82 V V 10 A 10 F L4931ABxx - L4931Cxx Table 10. Symbol Electrical characteristics of L4931ABxx35 (refer to the test circuits, TA = 25 C, CI = 0.1 F, CO = 2.2 F unless otherwise specified). Parameter VO Output voltage VI Operating input voltage Iout Output current limit VO Line regulation VO Id SVR Min. Typ. Max. IO = 5 mA, VI = 5.5 V 3.465 3.5 3.535 IO = 5 mA, VI = 5.5 V, TA=-25 to 85C 3.43 Unit V 3.57 IO = 250 mA 20 300 V mA 3 15 mV VI = 4.4 V, IO = 0.5 to 250 mA 3 15 mV 0.6 1 VI = 4.4 to 20 V, IO = 250 mA 4 6 OFF MODE VI = 6 V 50 100 Supply voltage rejection IO = 5 mA VI = 5.4 1 V Load regulation Quiescent current ON MODE Output noise voltage Vd Dropout voltage (1) VIL VIH CO Test conditions VI = 4.2 to 20 V, IO = 0.5 mA (1) eN II Electrical characteristics VI = 4.4 to 20 V, IO = 0 mA mA f = 120 Hz 73 f = 1 kHz 70 f = 10 kHz 55 B = 10 Hz to 100 kHz 50 IO = 250 mA 0.4 A dB V 0.6 V IO = 250 mA, TA= -40 to 125C 0.8 V Control input logic low TA = -40 to 125C 0.8 V Control Input Logic High TA = -40 to 125C Control input current VI = 6 V, VC = 6 V Output bypass capacitance ESR = 0.1 to 10 , IO = 0 to 250 mA 2 2 V 10 A 10 F 1. For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV. 15/36 Electrical characteristics Table 11. Symbol L4931ABxx - L4931Cxx Electrical characteristics of L4931ABxx35-TRY (Automotive Grade) (refer to the test circuits, TA = -40 to 125 C, CI = 0.1 F, CO = 2.2 F unless otherwise specified). Parameter Test conditions Min. Typ. Max. IO = 5 mA, VI = 5.5 V, TA = 25C 3.465 3.5 3.535 IO = 5 mA, VI = 5.5 V 3.43 Unit VO Output voltage VI Operating input voltage IO = 250 mA Iout Output current limit TA = 25C VO Line regulation VI = 4.2 to 20 V, IO = 0.5 mA 17 mV VO Load regulation VI = 4.4 V, IO = 0.5 to 250 mA 35 mV Quiescent current ON MODE VI = 4.4 to 20 V, IO = 0 mA 1 VI = 4.4 to 20 V, IO = 250 mA 6 Id SVR OFF MODE VI = 6 V Supply voltage rejection IO = 5 mA VI = 5.4 1 V TA = 25C eN Output noise voltage Vd Dropout voltage VIL Control input logic low VIH Control Input Logic High II CO 16/36 V 3.57 20 300 mA mA 100 f = 120 Hz 73 f = 1 kHz 70 f = 10 kHz 55 B = 10 Hz to 100 kHz, TA = 25C 50 IO = 250 mA, TA = 25C 0.4 IO = 250 mA 2 Control input current VI = 6 V, VC = 6 V, TA = 25C Output bypass capacitance ESR = 0.1 to 10 , IO = 0 to 250 mA, TA = 25C V 2 A dB V 0.6 V 0.82 V 0.82 V V 10 A 10 F L4931ABxx - L4931Cxx Table 12. Symbol Electrical characteristics of L4931Cxx35 (refer to the test circuits, TA = 25 C, CI = 0.1 F, CO = 2.2 F unless otherwise specified). Parameter VO Output voltage VI Operating input voltage Iout Output current limit VO Line regulation VO Id SVR Min. Typ. Max. IO = 5 mA, VI = 5.5 V 3.43 3.5 3.57 IO = 5 mA, VI = 5.5 V, TA=-25 to 85C 3.36 Unit V 3.64 IO = 250 mA 20 300 V mA 3 18 mV VI = 4.5 V, IO = 0.5 to 250 mA 3 18 mV 0.6 1 VI = 4.5 to 20 V, IO = 250 mA 4 6 OFF MODE VI = 6 V 50 100 Supply voltage rejection IO = 5 mA VI = 5.5 1 V Load regulation Quiescent current ON MODE Output noise voltage Vd Dropout voltage (1) VIL VIH CO Test conditions VI = 4.3 to 20 V, IO = 0.5 mA (1) eN II Electrical characteristics VI = 4.5 to 20 V, IO = 0 mA mA f = 120 Hz 73 f = 1 kHz 70 f = 10 kHz 55 B = 10 Hz to 100 kHz 50 IO = 250 mA 0.4 A dB V 0.6 V IO = 250 mA, TA= -40 to 125C 0.8 V Control input logic low TA= -40 to 125C 0.8 V Control Input Logic High TA= -40 to 125C Control input current VI = 6 V, VC = 6 V Output bypass capacitance ESR = 0.1 to 10 , IO = 0 to 250 mA 2 2 V 10 A 10 F 1. For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV. 17/36 Electrical characteristics Table 13. Symbol Electrical characteristics of L4931ABxx50 (refer to the test circuits, TA = 25 C, CI = 0.1 F, CO = 2.2 F unless otherwise specified). Parameter VO Output voltage VI Operating input voltage Iout Output current limit VO Line regulation VO Id SVR Load regulation (1) Min. Typ. Max. IO = 5 mA, VI = 7 V 4.95 5 5.05 IO = 5 mA, VI = 7 V, TA=-25 to 85C 4.9 V IO = 250 mA 20 300 VI = 5.8 to 20 V, IO = 0.5 mA 3.5 17.5 mV VI = 6 V, IO = 0.5 to 250 mA 3 15 mV 0.6 1 4 6 OFF MODE VI = 6 V 50 100 Supply voltage rejection IO = 5 mA VI = 7 1 V Dropout voltage (1) VIL VIH mA f = 120 Hz 70 f = 1 kHz 67 f = 10 kHz 55 B = 10 Hz to 100 kHz 50 IO = 250 mA 0.4 A dB V 0.6 V IO = 250 mA, TA= -40 to 125C 0.8 V Control input logic low TA = -40 to 125C 0.8 V Control Input Logic High TA = -40 to 125C Control input current VI = 6 V, VC = 6 V Output bypass capacitance ESR = 0.1 to 10 , IO = 0 to 250 mA 2 2 1. For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV. 18/36 V mA VI = 6 to 20 V, IO = 250 mA Vd Unit 5.1 VI = 6 to 20 V, IO = 0 mA Output noise voltage CO Test conditions Quiescent current ON MODE eN II L4931ABxx - L4931Cxx V 10 A 10 F L4931ABxx - L4931Cxx Table 14. Symbol Electrical characteristics of L4931Cxx50 (refer to the test circuits, TA = 25 C, CI = 0.1 F, CO = 2.2 F unless otherwise specified). Parameter VO Output voltage VI Operating input voltage Iout Output current limit VO Line regulation VO Id SVR Load regulation (1) Min. Typ. Max. IO = 5 mA, VI = 7 V 4.9 5 5.1 IO = 5 mA, VI = 7 V, TA=-25 to 85C 4.8 V IO = 250 mA 20 300 VI = 5.8 to 20 V, IO = 0.5 mA 3.5 17.5 mV VI = 6 V, IO = 0.5 to 250 mA 3 15 mV 0.6 1 4 6 OFF MODE VI = 6 V 50 100 Supply voltage rejection IO = 5 mA VI = 7 1 V Dropout voltage (1) VIL VIH V mA VI = 6 to 20 V, IO = 250 mA Vd Unit 5.2 VI = 6 to 20 V, IO = 0 mA Output noise voltage CO Test conditions Quiescent current ON MODE eN II Electrical characteristics mA f = 120 Hz 70 f = 1 kHz 67 f = 10 kHz 55 B = 10 Hz to 100 kHz 50 IO = 250 mA 0.4 A dB V 0.6 V IO = 250 mA, TA= -40 to 125C 0.8 V Control input logic low TA = -40 to 125C 0.8 V Control Input Logic High TA = -40 to 125C Control input current VI = 6 V, VC = 6 V Output bypass capacitance ESR = 0.1 to 10 , IO = 0 to 250 mA 2 2 V 10 A 10 F 1. For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV. 19/36 Electrical characteristics Table 15. Symbol Electrical characteristics of L4931ABxx80 (refer to the test circuits, TA = 25 C, CI = 0.1 F, CO = 2.2 F unless otherwise specified). Parameter VO Output voltage VI Operating input voltage Iout Output current limit VO Line regulation VO Id SVR Load regulation (1) Min. Typ. Max. IO = 5 mA, VI = 10 V 7.92 8 8.08 IO = 5 mA, VI = 10 V, TA=-25 to 85C 7.84 V IO = 250 mA 20 300 VI = 8.8 to 20 V, IO = 0.5 mA 4 20 mV VI = 9 V, IO = 0.5 to 250 mA 3 15 mV 1.6 VI = 9 to 20 V, IO = 250 mA 4.5 7 OFF MODE VI = 6 V 70 140 Supply voltage rejection IO = 5 mA VI = 10 1 V Dropout voltage (1) VIL VIH mA f = 120 Hz 67 f = 1 kHz 64 f = 10 kHz 55 B = 10 Hz to 100 kHz 50 IO = 250 mA 0.4 A dB V 0.6 V IO = 250 mA, TA= -40 to 125C 0.8 V Control input logic low TA = -40 to 125C 0.8 V Control Input Logic High TA = -40 to 125C Control input current VI = 6 V, VC = 6 V Output bypass capacitance ESR = 0.1 to 10 , IO = 0 to 250 mA 2 2 1. For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV. 20/36 V mA 0.8 Vd Unit 8.16 VI = 9 to 20 V, IO = 0 mA Output noise voltage CO Test conditions Quiescent current ON MODE eN II L4931ABxx - L4931Cxx V 10 A 10 F L4931ABxx - L4931Cxx Table 16. Symbol Electrical characteristics of L4931Cxx80 (refer to the test circuits, TA = 25 C, CI = 0.1 F, CO = 2.2 F unless otherwise specified). Parameter VO Output voltage VI Operating input voltage Iout Output current limit VO Line regulation VO Id SVR Min. Typ. Max. IO = 5 mA, VI = 10 V 7.84 8 8.16 IO = 5 mA, VI = 10 V, TA=-25 to 85C 7.68 Unit V 8.32 IO = 250 mA 20 300 V mA 4 24 mV VI = 9.1 V, IO = 0.5 to 250 mA 3 18 mV VI = 9.1 to 20 V, IO = 0 mA 0.8 1.6 VI = 9.1 to 20 V, IO = 250 mA 4.5 7 OFF MODE VI = 6 V 70 140 Supply voltage rejection IO = 5 mA VI = 10.1 1 V Load regulation Quiescent current ON MODE Output noise voltage Vd Dropout voltage (1) VIL VIH CO Test conditions VI = 8.9 to 20 V, IO = 0.5 mA (1) eN II Electrical characteristics mA f = 120 Hz 67 f = 1 kHz 64 f = 10 kHz 55 B = 10 Hz to 100 kHz 50 IO = 250 mA 0.4 A dB V 0.6 V IO = 250 mA, TA= -40 to 125C 0.8 V Control input logic low TA = -40 to 125C 0.8 V Control Input Logic High TA = -40 to 125C Control input current VI = 6 V, VC = 6 V Output bypass capacitance ESR = 0.1 to 10 , IO = 0 to 250 mA 2 2 V 10 A 10 F 1. For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV. 21/36 Electrical characteristics Table 17. Symbol Electrical characteristics of L4931ABxx120 (refer to the test circuits, TA = 25 C, CI = 0.1 F, CO = 2.2 F unless otherwise specified). Parameter VO Output voltage VI Operating input voltage Iout Output current limit VO Line regulation VO Id SVR Min. Typ. Max. IO = 5 mA, VI = 14 V 11.88 12 12.12 IO = 5 mA, VI = 14 V, TA=-25 to 85C 11.76 V 12.24 IO = 250 mA 20 300 V mA 20 mV VI = 13 V, IO = 0.5 to 250 mA 3 15 mV VI = 13 to 20 V, IO = 0 mA 0.8 1.6 VI = 13 to 20 V, IO = 250 mA 4.5 7 OFF MODE VI = 6 V 90 180 Supply voltage rejection IO = 5 mA VI = 14 1 V Load regulation Quiescent current ON MODE Vd Dropout voltage (1) VIL VIH mA f = 120 Hz 64 f = 1 kHz 61 f = 10 kHz 55 B = 10 Hz to 100 kHz 50 IO = 250 mA 0.4 A dB V 0.6 V IO = 250 mA, TA= -40 to 125C 0.8 V Control input logic low TA = -40 to 125C 0.8 V Control Input Logic High TA = -40 to 125C Control input current VI = 6 V, VC = 6 V Output bypass capacitance ESR = 0.1 to 10 , IO = 0 to 250 mA 2 2 1. For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV. 22/36 Unit 4 Output noise voltage CO Test conditions VI = 12.8 to 20 V, IO = 0.5 mA (1) eN II L4931ABxx - L4931Cxx V 10 A 10 F L4931ABxx - L4931Cxx Table 18. Symbol Electrical characteristics of L4931Cxx120 (refer to the test circuits, TA = 25 C, CI = 0.1 F, CO = 2.2 F unless otherwise specified). Parameter VO Output voltage VI Operating input voltage Iout Output current limit VO Line regulation VO Id SVR Min. Typ. Max. IO = 5 mA, VI = 14 V 11.76 12 12.24 IO = 5 mA, VI = 14 V, TA=-25 to 85C 11.52 Unit V 12.48 IO = 250 mA 20 300 V mA 4 24 mV VI = 13.1 V, IO = 0.5 to 250 mA 3 18 mV VI = 13.1 to 20 V, IO = 0 mA 0.8 1.6 VI = 13.1 to 20 V, IO = 250 mA 4.5 7 OFF MODE VI = 6 V 90 180 Supply voltage rejection IO = 5 mA VI = 14.1 1 V Load regulation Quiescent current ON MODE Output noise voltage Vd Dropout voltage (1) VIL VIH CO Test conditions VI = 12.9 to 20 V, IO = 0.5 mA (1) eN II Electrical characteristics mA f = 120 Hz 64 f = 1 kHz 61 f = 10 kHz 55 B = 10 Hz to 100 kHz 50 IO = 250 mA 0.4 A dB V 0.6 V IO = 250 mA, TA= -40 to 125C 0.8 V Control input logic low TA = -40 to 125C 0.8 V Control Input Logic High TA = -40 to 125C Control input current VI = 6 V, VC = 6 V Output bypass capacitance ESR = 0.1 to 10 , IO = 0 to 250 mA 2 2 V 10 A 10 F 1. For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV. 23/36 Typical application L4931ABxx - L4931Cxx 6 Typical application Figure 4. Line regulation vs temperature Figure 5. Dropout voltage vs temperature Figure 6. Supply current vs input voltage Figure 7. Supply current vs temperature Figure 8. Short circuit current vs dropout voltage Figure 9. SVR vs input voltage signal frequency 24/36 L4931ABxx - L4931Cxx 7 Package mechanical data Package mechanical data In order to meet environmental requirements, ST offers these devices in ECOPACK(R) packages. These packages have a lead-free second level interconnect. The category of second Level Interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com. 25/36 Package mechanical data L4931ABxx - L4931Cxx TO-220 mechanical data Dim. mm. Min. Typ. inch. Max. Min. Typ. Max. A 4.40 4.60 0.173 0.181 C 1.23 1.32 0.048 0.051 D 2.40 2.72 0.094 0.107 0.70 0.019 0.027 D1 E 1.27 0.49 0.050 F 0.61 0.88 0.024 0.034 F1 1.14 1.70 0.044 0.067 F2 1.14 1.70 0.044 0.067 G 4.95 5.15 0.194 0.203 G1 2.4 2.7 0.094 0.106 H2 10.0 10.40 0.393 0.409 L2 16.4 0.645 L4 13.0 14.0 0.511 0.551 L5 2.65 2.95 0.104 0.116 L6 15.25 15.75 0.600 0.620 L7 6.2 6.6 0.244 0.260 L9 3.5 3.93 0.137 0.154 DIA. 3.75 3.85 0.147 0.151 P011C 26/36 L4931ABxx - L4931Cxx Package mechanical data TO-92 mechanical data mm. mils. Dim. Min. Typ. Max. Min. Typ. Max. A 4.32 4.95 170.1 194.9 b 0.36 0.51 14.2 20.1 D 4.45 4.95 175.2 194.9 E 3.30 3.94 129.9 155.1 e 2.41 2.67 94.9 105.1 e1 1.14 1.40 44.9 55.1 L 12.7 15.49 500.0 609.8 R 2.16 2.41 85.0 94.9 S1 0.92 1.52 36.2 59.8 W 0.41 0.56 16.1 22.0 5 5 0102782/D 27/36 Package mechanical data L4931ABxx - L4931Cxx PPAK mechanical data mm. inch. Dim. Min. Typ. Max. Min. Typ. Max. A 2.2 2.4 0.086 0.094 A1 0.9 1.1 0.035 0.043 A2 0.03 0.23 0.001 0.009 B 0.4 0.6 0.015 0.023 B2 5.2 5.4 0.204 0.212 0.023 C 0.45 0.6 0.017 C2 0.48 0.6 0.019 0.023 D 6 6.2 0.236 0.244 6.6 0.252 D1 E 5.1 6.4 E1 4.7 e G 0.201 1.27 4.9 0.260 0.185 0.050 5.25 0.193 0.206 G1 2.38 2.7 0.093 0.106 H 9.35 10.1 0.368 0.397 0.039 L2 0.8 L4 0.6 L5 1 L6 1 1 2.8 0.031 0.023 0.039 0.039 0.110 0078180-E 28/36 L4931ABxx - L4931Cxx Package mechanical data DPAK mechanical data mm. inch. Dim. Min. A A1 A2 B b4 C C2 D D1 E E1 e e1 H L (L1) L2 L4 R V2 Typ. 2.2 0.9 0.03 0.64 5.2 0.45 0.48 6 Max. Min. 2.4 1.1 0.23 0.9 5.4 0.6 0.6 6.2 0.086 0.035 0.001 0.025 0.204 0.017 0.019 0.236 6.6 0.252 5.1 6.4 0.260 0.173 0.368 0.039 2.8 0.8 0.181 0.397 0.110 0.031 1 0.023 0.2 0 0.094 0.043 0.009 0.035 0.212 0.023 0.023 0.244 0.185 0.090 4.6 10.1 0.6 Max. 0.200 4.7 2.28 4.4 9.35 1 Typ. 0.039 0.008 8 0 8 0068772-F 29/36 Package mechanical data L4931ABxx - L4931Cxx SO-8 mechanical data Dim. mm. Min. Typ. inch. Max. Min. Typ. Max. A 1.35 1.75 0.053 0.069 A1 0.10 0.25 0.04 0.010 A2 1.10 1.65 0.043 0.065 B 0.33 0.51 0.013 0.020 C 0.19 0.25 0.007 0.010 D 4.80 5.00 0.189 0.197 E 3.80 4.00 0.150 0.157 e 1.27 0.050 H 5.80 6.20 0.228 0.244 h 0.25 0.50 0.010 0.020 L 0.40 1.27 0.016 0.050 k ddd 8 (max.) 0.1 0.04 0016023/C 30/36 L4931ABxx - L4931Cxx Package mechanical data Tape & reel DPAK-PPAK mechanical data mm. inch. Dim. Min. Typ. A Max. Min. Typ. 330 13.0 12.992 C 12.8 D 20.2 0.795 N 60 2.362 T 13.2 Max. 0.504 0.512 22.4 0.519 0.882 Ao 6.80 6.90 7.00 0.268 0.272 0.2.76 Bo 10.40 10.50 10.60 0.409 0.413 0.417 Ko 2.55 2.65 2.75 0.100 0.104 0.105 Po 3.9 4.0 4.1 0.153 0.157 0.161 P 7.9 8.0 8.1 0.311 0.315 0.319 31/36 Package mechanical data L4931ABxx - L4931Cxx Tape & reel SO-8 mechanical data mm. inch. Dim. Min. A Max. Min. 330 13.2 Typ. Max. 12.992 C 12.8 D 20.2 0.795 N 60 2.362 T 32/36 Typ. 0.504 22.4 0.519 0.882 Ao 8.1 8.5 0.319 0.335 Bo 5.5 5.9 0.216 0.232 Ko 2.1 2.3 0.082 0.090 Po 3.9 4.1 0.153 0.161 P 7.9 8.1 0.311 0.319 L4931ABxx - L4931Cxx Package mechanical data Tape & reel for TO-92 mechanical data Dim. A1 T T1 T2 d P0 P2 F1, F2 delta H W W0 W1 W2 H H0 H1 D0 t L1 delta P u 1 2 mm. Min. inch. Typ. Max. Min. 4.80 3.80 1.60 2.30 0.48 12.5 5.65 2.44 17.5 5.7 8.5 Typ. Max. 0.189 0.150 0.063 0.091 0.019 2.54 2 18.00 0.50 18.50 15.50 12.9 7.05 2.94 0.492 0.222 0.096 19.0 6.3 9.25 0.689 0.224 0.335 0.508 0.278 0.116 0.100 0.079 0.709 0.748 0.248 0.364 0.20 0.728 18.70 16.50 0.610 4.2 0.150 25.00 0.726 0.650 0.984 3.8 0.90 3 1 50 360 30 0.165 0.035 0.118 0.039 1.968 14.173 1.181 delta P T A1 T2 H1 T1 delta H H H0 d L W2 l1 W0 W W1 F1 F2 D0 P2 t P0 DRAWING NOT IN SCALE 33/36 Order codes L4931ABxx - L4931Cxx 8 Order codes Table 19. Order codes Packages TO-220 SO-8 PPAK DPAK TO-92 L4931CD27-TR L4931ABV33 2.7 V L4931CD27-TRY(1) L4931ABPT27TR L4931CD33-TR L4931CPT33-TR L4931ABD33-TR L4931CD33-TRY L4931CDT33-TR L4931CZ33-AP L4931ABDT33-TR L4931ABD35-TR 3.3 V L4931CDT35-TR 3.5 V L4931ABDT35TR 3.5 V (1) L4931CD50-TR 3.3 V 3.3 V L4931CD35-TR 3.5 V L4931CPT50-TR L4931ABD50-TR L4931CDT50-TR L4931CZ50-AP 5V L4931ABDT50-TR 5V L4931CPT80-TR L4931CDT80-TR 8V L4931ABPT80TR L4931ABDT80-TR 8V L4931CD120-TR L4931CPT120-TR L4931CDT120-TR 12 V L4931ABD120TR L4931ABPT120R L4931CD80-TR 1. Automotive Grade products. 34/36 2.7 V (1) L4931ABD35-TRY Output voltage 12 V L4931ABxx - L4931Cxx Revision history 9 Revision history Table 20. Document revision history Date Revision Changes 21-Jun-2004 11 Document updating. 14-Jun-2006 12 Order codes updated. 31-Jan-2008 13 Added: Table 1 and new order codes for Automotive grade products. 20-Feb-2008 14 Modified: Table 19 on page 34. 11-Mar-2008 15 Modified: Table 1 on page 1 and Table 19 on page 34. 15-Jul-2008 16 Modified: Table 1 on page 1 and Table 19 on page 34. 18-Aug-2008 17 Modified: Table 19 on page 34. 35/36 L4931ABxx - L4931Cxx Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries ("ST") reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST's terms and conditions of sale. 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