LD1086xx 1.5 A low drop positive voltage regulator adjustable and fixed Features ■ Typical dropout 1.3 V at 1.5 A ■ Three terminal adjustable or fixed output voltage 1.5 V, 1.8 V, 2.5 V, 3.3 V, 5 V, 12 V ■ Automotive Grade product: adjustable VOUT only in TO-220 and DPAK packages DPAK TO-220 ■ Guaranteed output current up to 1.5A ■ Output tolerance ± 1 % at 25 °C and ± 2 % in full temperature range ■ Internal power and thermal limit ■ Wide operating temperature range -40 °C to 125 °C ■ Package available: TO-220, D2PAK, D2PAK/A, DPAK ■ Pinout compatibility with standard adjustable VREG D2PAK Description The LD1086 is a low drop voltage regulator able to provide up to 1.5 A of output current. Dropout is guaranteed at a maximum of 1.2 V at the maximum output current, decreasing at lower loads. The LD1086 is pin to pin compatible with the older 3-terminal adjustable regulators, but has better performances in term of drop and output tolerance. D2PAK/A the load, so increase efficiency. Only a 10 µF minimum capacitor is need for stability. The device is supplied in TO-220, D2PAK, D2PAK/A and DPAK. On chip trimming allows the regulator to reach a very tight output voltage tolerance, within ± 1 % at 25 °C. The LD1086 is available as Automotive Grade in TO-220 and DPAK packages, for the option of adjustable output voltage whose commercial Part Numbers are shown in the Table 17 (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 2.85 V output version is suitable for SCSI-2 active termination. Unlike PNP regulators, where a part of the output current is wasted as quiescent current, the LD1086 quiescent current flows into Table 1. Device summary Part numbers July 2008 LD1086XX LD1086XX18 LD1086XX12 LD1086XX25 LD1086XX15 LD1086XX33 Rev 22 LD1086XX50 1/38 www.st.com 38 Contents LD1086xx Contents 1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4 Schematic application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 6 Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 7 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 8 Order codes 9 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 2/38 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 LD1086xx List of figures List of figures Figure 1. Figure 2. Figure 3. Figure 4. Figure 5. Figure 6. Figure 7. Figure 8. Figure 9. Figure 10. Figure 11. Figure 12. Figure 13. Figure 14. Figure 15. Figure 16. Figure 17. Figure 18. Figure 19. Figure 20. Figure 21. Figure 22. Figure 23. Figure 24. Figure 25. Figure 26. Figure 27. Figure 28. Figure 29. Figure 30. Figure 31. Figure 32. Figure 33. Figure 34. Figure 35. Schematic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Pin connections (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Output voltage vs temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Output voltage vs temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Output voltage vs temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Short circuit current vs dropout voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Line regulation vs temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Load regulation vs temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Dropout voltage vs temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Dropout voltage vs output current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Adjust pin current vs input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Adjust pin current vs temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Adjust pin current vs output current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Quiescent current vs output current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Quiescent current vs input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Supply voltage rejection vs output current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Supply voltage rejection vs frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Supply voltage rejection vs temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Minimum load current vs temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Stability for adjustable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Stability for 2.85 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Stability for 12 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Line transient . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Line transient . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Line transient . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Load transient . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Load transient . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Thermal protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Drawing dimension D²PAK (type STD-ST) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Drawing dimension D²PAK (type WOOSEOK-SUBCON.) . . . . . . . . . . . . . . . . . . . . . . . . . 27 D²PAK footprint recommended data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Drawing dimension D²PAK/A (type STD-ST) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Drawing dimension D²PAK/A (type WOOSEOK-Subcon.) . . . . . . . . . . . . . . . . . . . . . . . . . 31 D²PAK/A footprint recommended data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 3/38 List of tables LD1086xx 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. 4/38 Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Electrical characteristics of LD1086#15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Electrical characteristics of LD1086#18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Electrical characteristics of LD1086#25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Electrical characteristics of LD1086#33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Electrical characteristics of LD1086#36 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Electrical characteristics of LD1086#50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Electrical characteristics of LD1086#12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Electrical characteristics of LD1086#.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Electrical characteristics of LD1086DTTRY and LD1086VY (Automotive Grade) . . . . . . . 17 D²PAK mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Footprint data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 D²PAK/A mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Footprint data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 LD1086xx Diagram 1 Diagram Figure 1. Schematic diagram 5/38 Pin configuration LD1086xx 2 Pin configuration Figure 2. Pin connections (top view) TO-220 DPAK Note: 6/38 D2PAK D2PAK/A The TAB is physically connected to the output (this is valid for the TO-220 package too). LD1086xx Maximum ratings 3 Maximum ratings Table 2. Absolute maximum ratings Symbol Parameter Value Unit 30 V VI DC input voltage IO Output current Internally Limited mA PD Power dissipation Internally Limited mW TSTG Storage temperature range -55 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 D2PAK D2PAK/A DPAK Unit 8 °C/W RthJC Thermal resistance junction-case 3 3 RthJA Thermal resistance junction-ambient 50 62.5 °C/W 7/38 Schematic application 4 Schematic application Figure 3. Application circuit LD1086xx R V O = V REF ⋅ ⎛ 1 + ------2-⎞ ⎝ R 1⎠ 8/38 LD1086xx Electrical characteristics 5 Electrical characteristics Table 4. Electrical characteristics of LD1086#15 (VI = 4.5 V, CI = CO =10 µF, TA = -40 to 125 °C, unless otherwise specified). Symbol Parameter Test condition Min. Typ. Max. Unit IO = 0 mA, TJ = 25°C 1.485 1.5 1.515 V IO = 0 to 1.5A, VI = 3.4 to 30V 1.47 1.5 1.53 V IO = 0 mA, VI = 3.1 to 18V, TJ = 25°C 0.2 4 mV IO = 0 mA, VI = 3.1 to 15V 0.4 4 mV IO = 0 to 1.5A, TJ = 25°C 0.5 8 mV 1 16 mV VO Output voltage (1) ΔVO Line regulation ΔVO Load regulation Vd Dropout voltage IO = 1.5A 1.3 1.5 V Iq Quiescent current VI ≤ 30V 5 10 mA Isc Short circuit current SVR eN IO = 0 to 1.5A VI - VO = 5V 1.5 2 A VI - VO = 25V 0.05 0.02 A Thermal regulation TA = 25°C, 30ms pulse Supply voltage rejection f = 120 Hz, CO = 25 µF, IO = 1.5A VI = 6.5 ± 3V RMS Output noise voltage (% of TA = 25°C, f =10Hz to 10kHz VO) S Temperature stability S Long term stability TA = 125°C, 1000Hrs 0.01 60 0.04 %/W 82 dB 0.003 % 0.5 % 0.5 % 1. See short-circuit current curve for available output current at fixed dropout. 9/38 Electrical characteristics Table 5. Symbol LD1086xx Electrical characteristics of LD1086#18 (VI = 4.8 V, CI = CO =10 µF, TA = -40 to 125 °C, unless otherwise specified). Parameter Test condition Min. Typ. Max. Unit IO = 0 mA, TJ = 25°C 1.782 1.8 1.818 V IO = 0 to 1.5A, VI = 3.4 to 30V 1.764 1.8 1.836 V IO = 0 mA, VI = 3.4 to 18V, TJ = 25°C 0.2 4 mV IO = 0 mA, VI = 3.4 to 15V 0.4 4 mV IO = 0 to 1.5A, TJ = 25°C 0.5 8 mV 1 16 mV VO Output voltage (1) ΔVO Line regulation ΔVO Load regulation Vd Dropout voltage IO = 1.5A 1.3 1.5 V Iq Quiescent current VI ≤ 30V 5 10 mA Isc Short circuit current SVR eN IO = 0 to 1.5A VI - VO = 5V 1.5 2 A VI - VO = 25V 0.05 0.02 A Thermal regulation TA = 25°C, 30ms pulse Supply voltage rejection f = 120 Hz, CO = 25 µF, IO = 1.5A VI = 6.8 ± 3V RMS Output noise voltage (% of TA = 25°C, f =10Hz to 10kHz VO) S Temperature stability S Long term stability TA = 125°C, 1000Hrs 1. See short-circuit current curve for available output current at fixed dropout. 10/38 0.01 60 0.04 %/W 82 dB 0.003 % 0.5 % 0.5 % LD1086xx Table 6. Symbol Electrical characteristics Electrical characteristics of LD1086#25 (VI = 5.5 V, CI = CO =10 µF, TA = -40 to 125 °C, unless otherwise specified). Parameter Test condition Min. Typ. Max. Unit IO = 0 mA, TJ = 25°C 2.475 2.5 2.525 V IO = 0 to 1.5A, VI = 4.1 to 30V 2.45 2.5 2.55 V IO = 0 mA, VI = 4.1 to 18V, TJ = 25°C 0.2 4 mV IO = 0 mA, VI = 4.1 to 18V 0.4 4 mV IO = 0 to 1.5A, TJ = 25°C 0.5 8 mV 1 16 mV VO Output voltage (1) ΔVO Line regulation ΔVO Load regulation Vd Dropout voltage IO = 1.5A 1.3 1.5 V Iq Quiescent current VI ≤ 30V 5 10 mA Isc Short circuit current SVR eN IO = 0 to 1.5A VI - VO = 5V 1.5 2 A VI - VO = 25V 0.05 0.2 A Thermal regulation TA = 25°C, 30ms pulse Supply voltage rejection f = 120 Hz, CO = 25 µF, IO = 1.5A VI = 7.5 ± 3V RMS Output noise voltage (% of TA = 25°C, f =10Hz to 10kHz VO) S Temperature stability S Long term stability TA = 125°C, 1000Hrs 0.008 60 0.04 %/W 81 dB 0.003 % 0.5 % 0.5 % 1. See short-circuit current curve for available output current at fixed dropout. 11/38 Electrical characteristics Table 7. Symbol LD1086xx Electrical characteristics of LD1086#33 (VI = 6.3 V, CI = CO =10 µF, TA = -40 to 125 °C, unless otherwise specified). Parameter Test condition Min. Typ. Max. Unit IO = 0 mA, TJ = 25°C 3.267 3.3 3.333 V IO = 0 to 1.5A, VI = 4.9 to 30V 3.234 3.3 3.366 V 0.5 6 mV IO = 0 mA, VI = 4.9 to 18V 1 6 mV IO = 0 to 1.5A, TJ = 25°C 1 10 mV IO = 0 to 1.5A 7 25 mV VO Output voltage (1) ΔVO Line regulation ΔVO Load regulation Vd Dropout voltage IO = 1.5A 1.3 1.5 V Iq Quiescent current VI ≤ 30V 5 10 mA Isc Short circuit current SVR eN IO = 0 mA, VI = 4.9 to 18V, TJ = 25°C VI - VO = 5V 1.5 2 A VI - VO = 25V 0.05 0.2 A Thermal regulation TA = 25°C, 30ms pulse Supply voltage rejection f = 120 Hz, CO = 25 µF, IO = 1.5A VI = 8.3 ± 3V RMS Output noise voltage (% of TA = 25°C, f =10Hz to 10kHz VO) S Temperature stability S Long term stability TA = 125°C, 1000Hrs 1. See short-circuit current curve for available output current at fixed dropout. 12/38 0.008 60 0.04 %/W 79 dB 0.003 % 0.5 % 0.5 % LD1086xx Table 8. Symbol Electrical characteristics Electrical characteristics of LD1086#36 (VI = 6.6 V, CI = CO =10 µF, TA = -40 to 125 °C, unless otherwise specified). Parameter Test condition Min. Typ. Max. Unit IO = 0 mA, TJ = 25°C 3.564 3.6 3.636 V IO = 0 to 1.5A, VI = 5.2 to 30V 3.528 3.6 3.672 V 0.5 10 mV IO = 0 mA, VI = 5.2 to 18V 1 10 mV IO = 0 to 1.5A, TJ = 25°C 3 15 mV IO = 0 to 1.5A 7 25 mV VO Output voltage (1) ΔVO Line regulation ΔVO Load regulation Vd Dropout voltage IO = 1.5A 1.3 1.5 V Iq Quiescent current VI ≤ 30V 5 10 mA Isc Short circuit current SVR eN IO = 0 mA, VI = 5.2 to 18V, TJ = 25°C VI - VO = 5V 1.5 2 A VI - VO = 25V 0.05 0.2 A Thermal regulation TA = 25°C, 30ms pulse Supply voltage rejection f = 120 Hz, CO = 25 µF, IO = 1.5A VI = 8.6 ± 3V RMS Output noise voltage (% of TA = 25°C, f =10Hz to 10kHz VO) S Temperature stability S Long term stability TA = 125°C, 1000Hrs 0.01 60 0.04 %/W 78 dB 0.003 % 0.5 % 0.5 % 1. See short-circuit current curve for available output current at fixed dropout. 13/38 Electrical characteristics Table 9. Symbol LD1086xx Electrical characteristics of LD1086#50 (VI = 8 V, CI = CO =10 µF, TA = -40 to 125 °C, unless otherwise specified). Parameter Test condition Min. Typ. Max. Unit IO = 0 mA, TJ = 25°C 4.95 5 5.05 V IO = 0 to 1.5A, VI = 6.6 to 30V 4.9 5 5.1 V 0.5 10 mV IO = 0 mA, VI = 6.6 to 20V 1 10 mV IO = 0 to 1.5A, TJ = 25°C 5 20 mV IO = 0 to 1.5A 10 35 mV VO Output voltage (1) ΔVO Line regulation ΔVO Load regulation Vd Dropout voltage IO = 1.5A 1.3 1.5 V Iq Quiescent current VI ≤ 30V 5 10 mA Isc Short circuit current SVR eN IO = 0 mA, VI = 6.6 to 20V, TJ = 25°C VI - VO = 5V 1.5 2 A VI - VO = 25V 0.05 0.2 A Thermal regulation TA = 25°C, 30ms pulse Supply voltage rejection f = 120 Hz, CO = 25 µF, IO = 1.5A VI = 10 ± 3V RMS Output noise voltage (% of TA = 25°C, f =10Hz to 10kHz VO) S Temperature stability S Long term stability TA = 125°C, 1000Hrs 1. See short-circuit current curve for available output current at fixed dropout. 14/38 0.01 60 0.04 %/W 75 dB 0.003 % 0.5 % 0.5 % LD1086xx Table 10. Symbol VO ΔVO Electrical characteristics Electrical characteristics of LD1086#12 (VI = 15 V, CI = CO =10 µF, TA = -40 to 125 °C, unless otherwise specified). Parameter Output voltage (1) Line regulation Test condition Min. Typ. Max. Unit IO = 0 mA, TJ = 25°C 11.88 12 12.12 V IO = 0 to 1.5A, VI = 13.8 to 30V 11.76 12 12.24 V IO = 0 mA, VI = 13.8 to 25V, TJ = 25°C 1 25 mV IO = 0 mA, VI = 13.8 to 25V 2 25 mV IO = 0 to 1.5A, TJ = 25°C 12 36 mV IO = 0 to 1.5A 24 72 mV ΔVO Load regulation Vd Dropout voltage IO = 1.5A 1.3 1.5 V Iq Quiescent current VI ≤ 30V 5 10 mA Isc Short circuit current SVR eN VI - VO = 5V 1.5 2 A VI - VO = 25V 0.05 0.2 A Thermal regulation TA = 25°C, 30ms pulse Supply voltage rejection f = 120 Hz, CO = 25 µF, IO = 1.5A VI = 17 ± 3V RMS Output noise voltage (% of TA = 25°C, f =10Hz to 10kHz VO) S Temperature stability S Long term stability TA = 125°C, 1000Hrs 0.01 54 0.04 %/W 66 dB 0.003 % 0.5 % 0.5 % 1. See short-circuit current curve for available output current at fixed dropout. 15/38 Electrical characteristics Table 11. Symbol VO ΔVO LD1086xx Electrical characteristics of LD1086# (VI = 4.25 V, CI = CO =10 µF, TA = -40 to 125 °C, unless otherwise specified). Parameter Test condition Output voltage (1) Line Regulation Min. Typ. Max. Unit IO = 10mA TJ = 25°C 1.237 1.25 1.263 V IO = 10mA to 1.5A, VI = 2.85 to 30V 1.225 1.25 1.275 V IO = 10mA, VI = 2.8 to 16.5V, TJ = 25°C 0.015 0.2 % IO = 10mA, VI = 2.8 to 16.5V 0.035 0.2 % IO = 10mA to 1.5A, TJ = 25°C 0.1 0.3 % IO = 0 to 1.5A 0.2 0.4 % ΔVO Load Regulation Vd Dropout Voltage IO = 1.5A 1.3 1.5 V Minimum Load Current VI = 30V 3 10 mA IO(min) Isc Short Circuit Current VI - VO = 5V 1.5 2.3 A VI - VO = 25V 0.05 0.2 A Thermal Regulation TA = 25°C, 30ms pulse SVR Supply Voltage Rejection f = 120 Hz, CO = 25 µF,CADJ = 25 µF, IO = 1.5A, VI = 6.25 ± 3V IADJ Adjust Pin Current ΔIADJ eN Adjust Pin Current Change (1) RMS Output Noise Voltage (% of VO) S Temperature Stability S Long Term Stability 60 0.04 88 %/W dB VI = 4.25V, IO = 10 mA 40 120 µA IO = 10mA to 1.5A, VI = 2.8 to 16.5V 0.2 5 µA TA = 25°C, f =10Hz to 10kHz TA = 125°C, 1000Hrs 1. See short-circuit current curve for available output current at fixed dropout. 16/38 0.01 0.003 % 0.5 % 0.5 % LD1086xx Table 12. Symbol Electrical characteristics Electrical characteristics of LD1086DTTRY and LD1086VY (Automotive Grade) (VI = 4.25 V, CI = CO =10 µF, TA = -40 to 125 °C, unless otherwise specified). Parameter Test condition Min. Typ. Max. Unit IO = 10 mA TA = 25°C 1.237 1.25 1.263 V IO = 10 mA to 1.5 A, VI = 2.85 to 30 V 1.225 1.25 1.275 V 0.035 0.2 % VO Output voltage (1) ΔVO Line regulation IO = 10 mA, VI = 2.8 to 16.5 V ΔVO Load regulation IO = 0 to 1.5 A 0.2 0.4 % Vd Dropout voltage IO = 1.5 A 1.3 1.5 V Minimum load current VI = 30 V 3 10 mA IO(min) Isc Short circuit current VI - VO = 5 V, TA = 25°C 1.5 2.3 A VI - VO = 25 V, TA = 25°C 0.05 0.2 A Thermal regulation TA = 25°C, 30ms pulse SVR Supply voltage rejection f = 120 Hz, CO = 25 µF,CADJ = 25 µF, IO = 1.5 A, VI = 6.25 ± 3 V, TA = 25°C IADJ Adjust pin current ΔIADJ eN Adjust pin current change (1) RMS output noise voltage (% of VO) S Temperature stability S Long term stability 0.01 60 0.04 88 %/W dB VI = 4.25 V, IO = 10 mA 40 120 μA IO = 10 mA to 1.5 A, VI = 2.8 to 16.5 V 0.2 5 μA TA = 25°C, f =10 Hz to 10 KHz TA = 125°C, 1000 Hrs 0.003 % 0.5 % 0.5 % 1. See short-circuit current curve for available output current at fixed dropout. 17/38 Typical application LD1086xx 6 Typical application Figure 4. (Unless otherwise specified TJ = 25 °C, CI = CO = 10 µF) Output voltage vs temperature Figure 5. Output voltage vs temperature Figure 6. Output voltage vs temperature Figure 7. Short circuit current vs dropout voltage Figure 8. Line regulation vs temperature Figure 9. Load regulation vs temperature 18/38 LD1086xx Figure 10. Dropout voltage vs temperature Typical application Figure 11. Dropout voltage vs output current Figure 12. Adjust pin current vs input voltage Figure 13. Adjust pin current vs temperature Figure 14. Adjust pin current vs output current Figure 15. Quiescent current vs output current 19/38 Typical application LD1086xx Figure 16. Quiescent current vs input voltage Figure 17. Supply voltage rejection vs output current Figure 18. Supply voltage rejection vs frequency Figure 19. Supply voltage rejection vs temperature Figure 20. Minimum load current vs temperature Figure 21. Stability for adjustable 20/38 LD1086xx Typical application Figure 22. Stability for 2.85V Figure 23. Stability for 12V Figure 24. Line transient Figure 25. Line transient VI=12 to 13V, IO=200mA, CI = 1µF(tant), CO=10µF(tant), No CADJ VI=12 to 13V, IO=200mA, CI = 1µF(tant), CO=10µF(tant), No CADJ Figure 26. Line transient Figure 27. Load transient VI=12 to 13V, IO=200mA, CI = 1µF(tant), CO=10µF(tant), CADJ = 1µF VI=13V, IO=0.1 to 1.5A, CI = 1µF(tant), CO=10µF(tant) CADJ =1µF 21/38 Typical application LD1086xx Figure 28. Load transient Figure 29. Thermal protection VI=13V, IO=0.1 to 1.5A, CI=1µF(tant), CO=10µF(tant), CADJ =1µF VO=2.85V 22/38 LD1086xx 7 Package mechanical data Package mechanical data In order to meet environmental requirements, ST offers these devices in ECOPACK® 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. 23/38 Package mechanical data LD1086xx 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 24/38 LD1086xx 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 25/38 Package mechanical data LD1086xx Figure 30. Drawing dimension D2PAK (type STD-ST) 0079457/L 26/38 LD1086xx Package mechanical data Figure 31. Drawing dimension D2PAK (type WOOSEOK-SUBCON.) 0079457/L 27/38 Package mechanical data Table 13. D2PAK mechanical data Dim. Min. Type WOOSEOK-SUBCON. mm. mm. Typ. Max. Min. Typ. Max. 4.40 4.60 4.30 4.70 A1 0.03 0.23 0 0.20 b 0.70 0.93 0.70 0.90 b2 1.14 1.70 1.17 1.37 c 0.45 0.60 0.45 0.50 0.60 c2 1.23 1.36 1.25 1.30 1.40 D 8.95 9.35 9 9.20 9.40 D1 7.50 E 10 E1 8.50 7.50 10.40 9.80 10.20 7.50 2.54 2.54 e1 4.88 5.28 H 15 15.85 15 J1 2.49 2.69 2.20 2.60 L 2.29 2.79 1.79 2.79 L1 1.27 1.40 1 1.40 L2 1.30 1.75 1.20 1.60 R V2 28/38 Type STD-ST A e Note: LD1086xx 5.08 0.4 0° 15.30 15.60 0.30 8° 0° 3° The D2PAK package coming from the subcontractor Wooseok is fully compatible with the ST's package suggested footprint. LD1086xx Package mechanical data Figure 32. D2PAK footprint recommended data Table 14. Footprint data Values mm. inch. A 12.20 0.480 B 9.75 0.384 C 16.90 0.665 D 3.50 0.138 E 1.60 0.063 F 2.54 0.100 G 5.08 0.200 29/38 Package mechanical data LD1086xx Figure 33. Drawing dimension D2PAK/A (type STD-ST) 7106164/E 30/38 LD1086xx Package mechanical data Figure 34. Drawing dimension D2PAK/A (type WOOSEOK-Subcon.) 7106164/E 31/38 Package mechanical data Table 15. D2PAK/A mechanical data Dim. Min. Type WOOSEOK-Subcon. mm. mm. Typ. Max. Min. Typ. Max. 4.40 4.60 4.30 4.70 A1 0.03 0.23 0 0.20 b 0.70 0.93 0.70 0.90 b1 0.80 1.30 b2 1.14 1.70 1.17 1.37 c 0.45 0.60 0.45 0.50 0.60 c2 1.23 1.36 1.25 1.30 1.40 D 8.95 9.35 9 9.20 9.40 D1 7.50 E 10 E1 8.50 7.50 10.40 9.80 10.20 7.50 2.54 2.54 e1 4.88 5.28 H 15 15.85 15 J1 2.49 2.69 2.20 2.60 L 2.29 2.79 1.79 2.79 L1 1.27 1.40 1 1.40 R V2 32/38 Type STD-ST A e Note: LD1086xx 5.08 0.4 0° 15.30 15.60 0.30 8° 0° 3° The D2PAK/A package coming from the subcontractor Wooseok is fully compatible with the ST's package suggested footprint. LD1086xx Package mechanical data Figure 35. D2PAK/A footprint recommended data Table 16. Footprint data Values mm. inch. A 12.20 0.480 B 9.75 0.384 C 16.90 0.665 D 3.50 0.138 E 1.60 0.063 F 2.54 0.100 G 5.08 0.200 33/38 Package mechanical data LD1086xx Tape & reel DPAK-PPAK mechanical data mm. inch. Dim. Min. Typ. A Min. Typ. 330 13.0 13.2 Max. 12.992 C 12.8 D 20.2 0.795 N 60 2.362 T 34/38 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 LD1086xx Package mechanical data Tape & reel D2PAK-P2PAK-D2PAK/A-P2PAK/A mechanical data mm. inch. Dim. Min. Typ. A Max. Min. Typ. 180 13.0 7.086 C 12.8 D 20.2 0.795 N 60 2.362 T 13.2 Max. 0.504 0.512 14.4 0.519 0.567 Ao 10.50 10.6 10.70 0.413 0.417 0.421 Bo 15.70 15.80 15.90 0.618 0.622 0.626 Ko 4.80 4.90 5.00 0.189 0.193 0.197 Po 3.9 4.0 4.1 0.153 0.157 0.161 P 11.9 12.0 12.1 0.468 0.472 0.476 35/38 Order codes LD1086xx 8 Order codes Table 17. Order codes Packages D2PAK TO-220 LD1086V18 LD1086V33 D2PAK/A DPAK Output voltage LD1086D2T15R LD1086DT15R 1.5 V LD1086D2T18TR LD1086DT18TR 1.8 V LD1086D2T25TR LD1086DT25TR 2.5 V LD1086DT33TR 3.3 V LD1086DT50TR 5.0 V LD1086D2T33TR LD1086D2M33TR LD1086D2T50TR LD1086D2T12TR LD1086V LD1086VY (1) 1. Automotive Grade products. 36/38 LD1086D2TTR 12.0 V LD1086D2MTR LD1086DTTR LD1086DTTRY (1) ADJ ADJ LD1086xx Revision history 9 Revision history Table 18. Document revision history Date Revision Changes 25-Aug-2004 11 Mistake VO (typ.), table 9 - pag. 6. 07-Oct-2004 12 Mistake order codes - Table 1. 08-Feb-2005 13 Mistake U.M. Load regulation - V ==> mV. 16-May-2006 14 Order codes updated and new template. 19-Jan-2007 15 D2PAK mechanical data updated and add footprint data. 05-Apr-2007 16 Order codes updated. 07-Jun-2007 17 Order codes updated. 19-Jul-2007 18 Add note on Figure 2. 03-Dec-2007 19 Modified: Table 17. 31-Jan-2008 20 Added new order codes for Automotive grade products. 18-Feb-2008 21 Modified: Table 17 on page 36. 14-Jul-2008 22 Modified: Table 1 on page 1 and Table 17 on page 36. 37/38 LD1086xx 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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