LD1085D2M33R

LD1085 3 A low drop positive voltage regulator: adjustable and fixed Datasheet - production data Unlike PNP regulators, where a part of the output current is wasted as quiescent current, the LD1085 quiescent current flows into the load, thus increase efficiency. Only a 10 µF minimum capacitor is need for stability. TO-220 D²PAK The device is supplied in TO-220, TO-220FP, D²PAK and D²PAK/A packages. On-chip trimming allows the regulator to reach a very tight output voltage tolerance, within ± 1% at 25 °C. TO-220FP D²PAK/A Features • Typical dropout 1.3 V (at 3 A) • Three terminal adjustable or fixed output voltage 1.8 V, 2.5 V, 3.3 V, 5 V • Guaranteed output current up to 3 A • 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, TO-220FP, D²PAK, D²PAK/A • Pinout compatibility with standard adjustable VREG Description The LD1085 is a low drop voltage regulator able to provide up to 3 A of output current. Dropout is guaranteed at a maximum of 1.2 V at the maximum output current, decreasing at lower loads. The LD1085 is pin-to-pin compatible with the older 3-terminal adjustable regulators, but offers better performance in terms of drop and output tolerance. October 2013 This is information on a product in full production. DocID6738 Rev 27 1/27 www.st.com 27 Contents LD1085 Contents 1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 Application schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 6 Typical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 7 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 8 Packaging mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 9 Order codes 10 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 2/27 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 DocID6738 Rev 27 LD1085 1 Diagram Diagram Figure 1. Schematic diagram DocID6738 Rev 27 3/27 Pin configuration 2 LD1085 Pin configuration Figure 2. Pin connections (top view) TO-220 TO-220FP D²PAK 4/27 D²PAK/A DocID6738 Rev 27 LD1085 Maximum ratings 3 Maximum ratings Table 1. 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 2. Thermal data Symbol Parameter TO-220 TO-220FP D²PAK D²PAK/A Unit RthJC Thermal resistance junction-case 3 5 3 °C/W RthJA Thermal resistance junction-ambient 50 60 62.5 °C/W DocID6738 Rev 27 5/27 Application schematic 4 LD1085 Application schematic Figure 3. Application circuit R2 VO = V REF ⋅  1 + -------  R 1 6/27 DocID6738 Rev 27 LD1085 5 Electrical characteristics Electrical characteristics VI = 4.8 V, CI = CO =10 µF, TA = -40 to 125 °C, unless otherwise specified. Table 3. Electrical characteristics of LD1085#18 Symbol VO Parameter Output voltage (1) Test condition Min. Typ. Max. Unit IO = 0 mA, TJ = 25°C 1.782 1.8 1.818 V IO = 0 to 3 A, VI = 3.4 to 30 V 1.764 1.8 1.836 V IO = 0 mA, VI = 3.4 to 18 V TJ = 25°C 0.2 4 mV IO = 0 mA, VI = 3.4 to 15 V 0.4 4 mV IO = 0 to 3 A, TJ = 25°C 2 10 mV IO = 0 to 3 A 4 20 mV ΔVO Line regulation ΔVO Load regulation Vd Dropout voltage IO = 3 A 1.3 1.5 V Iq Quiescent current VI ≤ 30 V 5 10 mA Isc Short-circuit current SVR VI - VO = 5 V 3.2 4.5 A VI - VO = 25 V 0.2 0.5 A Thermal regulation TA = 25°C, 30 ms pulse Supply voltage rejection f = 120 Hz, CO = 25 µF, IO = 3 A VI = 7.5 ± 3 V eN RMS output noise voltage (% of TA = 25°C, f =10 Hz to 10 kHz VO) S Temperature stability S Long term stability TA = 125°C, 1000 Hrs 0.008 60 0.04 %/W 72 dB 0.003 % 0.5 % 0.5 % 1. See short-circuit current curve for available output current at fixed dropout. DocID6738 Rev 27 7/27 Electrical characteristics LD1085 VI = 5.5 V, CI = CO =10 µF, TA = -40 to 125 °C, unless otherwise specified. Table 4. Electrical characteristics of LD1085#25 Symbol VO Parameter Output voltage (1) Test condition Min. Typ. Max. Unit IO = 0 mA, TJ = 25°C 2.475 2.5 2.525 V IO = 0 to 3 A, VI = 4.1 to 30 V 2.45 2.5 2.55 V IO = 0 mA, VI = 4.1 to 18 V, TJ = 25°C 0.2 4 mV IO = 0 mA, VI = 4.1 to 18 V 0.4 4 mV IO = 0 to 3 A, TJ = 25°C 2 10 mV IO = 0 to 3 A 4 20 mV ΔVO Line regulation ΔVO Load regulation Vd Dropout voltage IO = 3 A 1.3 1.5 V Iq Quiescent current VI ≤ 30 V 5 10 mA Isc Short-circuit current VI - VO = 5 V 3.2 4.5 A VI - VO = 25 V 0.2 0.5 A Thermal regulation TA = 25°C, 30ms pulse Supply voltage rejection f = 120 Hz, CO = 25µF, IO = 3 A VI = 7.5 ± 3 V eN RMS output noise voltage (% of VO) TA = 25°C, f =10 Hz to 10 kHz S Temperature stability S Long term stability SVR TA = 125°C, 1000 Hrs 1. See short-circuit current curve for available output current at fixed dropout. 8/27 DocID6738 Rev 27 0.008 60 0.04 %/W 72 dB 0.003 % 0.5 % 0.5 % LD1085 Electrical characteristics VI = 6.3 V, CI = CO =10 µF, TA = -40 to 125 °C, unless otherwise specified. Table 5. Electrical characteristics of LD1085#33 Symbol VO Parameter Output voltage (1) Test condition Min. Typ. Max. Unit IO = 0 mA, TJ = 25°C 3.267 3.3 3.333 V IO = 0 to 3 A, VI = 4.9 to 30 V 3.234 3.35 3.366 V 0.5 6 mV IO = 0 mA, VI = 4.9 to 18 V 1 6 mV IO = 0 to 3 A, TJ = 25°C 3 15 mV IO = 0 to 3 A 7 20 mV IO = 0 mA, VI = 4.9 to 18 V, TJ = 25°C ΔVO Line regulation ΔVO Load regulation Vd Dropout voltage IO = 3 A 1.3 1.5 V Iq Quiescent current VI ≤ 30 V 5 10 mA Isc Short-circuit current VI - VO = 5 V 3.2 4.5 A VI - VO = 25 V 0.2 0.5 A Thermal regulation TA = 25°C, 30 ms pulse Supply voltage rejection f = 120 Hz, CO = 25 µF, IO = 3 A VI = 8.3 ± 3 V eN RMS output noise voltage (% of VO) TA = 25°C, f =10 Hz to 10 kHz S Temperature stability S Long term stability SVR TA = 125°C, 1000 Hrs 0.008 60 0.04 %/W 72 dB 0.003 % 0.5 % 0.5 % 1. See short-circuit current curve for available output current at fixed dropout. DocID6738 Rev 27 9/27 Electrical characteristics LD1085 VI = 8 V, CI = CO =10 µF, TA = -40 to 125 °C, unless otherwise specified. Table 6. Electrical characteristics of LD1085#50 Symbol VO Parameter Output voltage (1) Test condition Min. Typ. Max. Unit IO = 0 mA, TJ = 25°C 4.95 5 5.05 V IO = 0 to 3 A, VI = 6.6 to 30 V 4.9 5 5.1 V 0.5 10 mV IO = 0 mA, VI = 6.6 to 20 V 1 10 mV IO = 0 to 3 A, TJ = 25°C 5 10 mV IO = 0 to 3 A 10 35 mV IO = 0 mA, VI = 6.6 to 20 V, TJ = 25°C ΔVO Line regulation ΔVO Load regulation Vd Dropout voltage IO = 3 A 1.3 1.5 V Iq Quiescent current VI ≤ 30 V 5 10 mA Isc Short-circuit current VI - VO = 5 V 3.2 4.5 A VI - VO = 25 V 0.2 0.5 A Thermal regulation TA = 25°C, 30 ms pulse Supply voltage rejection f = 120 Hz, CO = 25 µF, IO = 3 A VI = 10 ± 3 V eN RMS output noise voltage (% of VO) TA = 25°C, f = 10 Hz to 10 kHz S Temperature stability S Long term stability SVR TA = 125°C, 1000 Hrs 1. See short-circuit current curve for available output current at fixed dropout. 10/27 DocID6738 Rev 27 0.008 60 0.04 %/W 72 dB 0.003 % 0.5 % 0.5 % LD1085 Electrical characteristics VI = 4.25 V, CI = CO =10 µF, TA = -40 to 125 °C, unless otherwise specified. Table 7. Electrical characteristics of LD1085# Symbol Vref ΔVO Parameter Reference voltage (1) Line regulation Test condition Min. Typ. Max. Unit IO = 10 mA TJ = 25°C 1.237 1.25 1.263 V IO = 10 mA to 3 A, VI = 2.85 to 30 V 1.225 1.25 1.275 V IO = 10 mA, VI = 2.85 to 16.5 V, TJ = 25°C 0.015 0.2 % IO = 10 mA, VI = 2.85 to 16.5 V 0.035 0.2 % IO = 10 mA to 3 A, TJ = 25°C 0.1 0.3 % IO = 0 to 3 A 0.2 0.4 % ΔVO Load regulation Vd Dropout voltage IO = 3 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 5.5 6.5 A VI - VO = 25 V 0.5 0.7 A Thermal regulation TA = 25°C, 30ms pulse SVR Supply voltage rejection f = 120 Hz, CO = 25 µF,CADJ = 25 µF, IO = 3 A, VI = 6.25 ± 3 V IADJ Adjust pin current VI = 4.25 V, IO = 10 mA 55 120 µA ΔIADJ Adjust pin current change (1) IO = 10 mA to 3 A, VI = 2.85 to 16.5 V 0.2 5 µA eN RMS output noise voltage (% of VO) TA = 25°C, f =10 Hz to 10 kHz S Temperature stability S Long term stability TA = 125°C, 1000 Hrs 0.003 0.015 60 72 %/W dB 0.003 % 0.5 % 0.5 % 1. See short-circuit current curve for available output current at fixed dropout. DocID6738 Rev 27 11/27 Typical characteristics 6 LD1085 Typical characteristics Unless otherwise specified TJ = 25 °C, CI = CO = 10 µF. Figure 4. Output voltage vs. temp. (IO = 3 A) Figure 5. Output voltage vs. temp. (IO = 0 mA) Figure 6. Output voltage vs. temp. (IO = 10 mA) Figure 7. Short-circuit current vs. dropout voltage 12/27 DocID6738 Rev 27 LD1085 Typical characteristics Figure 8. Line regulation vs. temp. (IO = 10 mA) Figure 9. Load regulation vs. temperature Figure 10. Dropout voltage vs. temperature Figure 11. Dropout voltage vs. output current Figure 12. Adjust pin current vs. temperature Figure 13. Quiescent current vs. temperature DocID6738 Rev 27 13/27 Typical characteristics LD1085 Figure 14. Line regulation vs. temperature (VIN = 15 V) Figure 15. Supply voltage rejection vs. output current Figure 16. Supply voltage rejection vs. frequency Figure 17. Supply voltage rejection vs. temperature Figure 18. Minimum load current vs. temperature Figure 19. Stability, VO = 1.8 V 14/27 DocID6738 Rev 27 LD1085 Typical characteristics Figure 20. Stability, VO = 12 V Figure 21. Line transient VI=12 to 13V, IO=200mA, CI = 1µF(tant), CO=10µF(tant), CADJ=1µF Figure 22. Load transient VI=12V, IO=0.12 to 3A, CI = 1µF(tant), CO=10µF(tant), CADJ=1µF Figure 23. Load transient (No CADJ) VI=12V, IO=0.12 to 3A, CI = 1µF(tant), CO=10µF(tant), no CADJ DocID6738 Rev 27 15/27 Package mechanical data 7 LD1085 Package mechanical data In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK® packages, depending on their level of environmental compliance. ECOPACK® specifications, grade definitions and product status are available at: www.st.com. ECOPACK® is an ST trademark. Table 8. TO-220 mechanical data mm Dim. Min. 16/27 Typ. Max. A 4.40 4.60 b 0.61 0.88 b1 1.14 1.70 c 0.48 0.70 D 15.25 15.75 E 10 10.40 e 2.40 2.70 e1 4.95 5.15 F 0.51 0.60 H1 6.20 6.60 J1 2.40 2.72 L 13 14 L1 3.50 3.93 L20 16.40 L30 28.90 ∅P 3.75 3.85 Q 2.65 2.95 DocID6738 Rev 27 LD1085 Package mechanical data Figure 24. TO-220 drawing BUHY' DocID6738 Rev 27 17/27 Package mechanical data LD1085 Table 9. TO-220FP mechanical data mm Dim. Min. Typ. Max. A 4.4 4.6 B 2.5 2.7 D 2.5 2.75 E 0.45 0.7 F 0.75 1 F1 1.15 1.70 F2 1.15 1.70 G 4.95 5.2 G1 2.4 2.7 H 10 10.4 L2 16 L3 28.6 30.6 L4 9.8 10.6 L5 2.9 3.6 L6 15.9 16.4 L7 9 9.3 Dia 3 3.2 Figure 25. TO-220FP drawing L7 E A B D Dia L5 L6 F1 F2 F G H G1 L4 L2 L3 7012510_Rev_K 18/27 DocID6738 Rev 27 LD1085 Package mechanical data Table 10. D²PAK mechanical data mm Dim. Min. Typ. Max. A 4.40 4.60 A1 0.03 0.23 b 0.70 0.93 b2 1.14 1.70 c 0.45 0.60 c2 1.23 1.36 D 8.95 9.35 D1 7.50 E 10 E1 8.50 10.40 e 2.54 e1 4.88 5.28 H 15 15.85 J1 2.49 2.69 L 2.29 2.79 L1 1.27 1.40 L2 1.30 1.75 R V2 0.4 0° 8° DocID6738 Rev 27 19/27 Package mechanical data LD1085 Figure 26. D²PAK drawing 0079457_T 20/27 DocID6738 Rev 27 LD1085 Package mechanical data Table 11. D²PAK/A mechanical data mm Dim. Min. Typ. Max. A 4.40 4.60 A1 0.03 0.23 b 0.70 0.93 b2 1.14 1.70 c 0.45 0.60 c2 1.23 1.36 D 8.95 9.35 D1 7.50 E 10 E1 8.50 10.40 e 2.54 e1 4.88 5.28 H 15 15.85 J1 2.49 2.69 L 2.29 2.79 L1 1.27 1.40 R V2 0.4 0° 8° DocID6738 Rev 27 21/27 Package mechanical data LD1085 Figure 27. D²PAK/A mechanical data 7106164_E 22/27 DocID6738 Rev 27 LD1085 8 Packaging mechanical data Packaging mechanical data Table 12. D²PAK, D²PAK/A tape and reel mechanical data Tape Reel mm mm Dim. Dim. Min. Max. Min. Max. A0 10.5 10.7 A B0 15.7 15.9 B 1.5 D 1.5 1.6 C 12.8 D1 1.59 1.61 D 20.2 E 1.65 1.85 G 24.4 F 11.4 11.6 N 100 K0 4.8 5.0 T P0 3.9 4.1 P1 11.9 12.1 Base qty 1000 P2 1.9 2.1 Bulk qty 1000 R 50 T 0.25 0.35 W 23.7 24.3 330 13.2 26.4 30.4 Figure 28. D²PAK, D²PAK/A footprint(a) 16.90 12.20 5.08 1.60 3.50 9.75 Footprint a. All dimensions are in millimeters DocID6738 Rev 27 23/27 Packaging mechanical data LD1085 Figure 29. Tape for D²PAK and D²PAK/A 10 pitches cumulative tolerance on tape +/- 0.2 mm T P0 Top cover tape P2 D E F B1 W K0 B0 For machine ref. only including draft and radii concentric around B0 A0 P1 D1 User direction of feed R Bending radius User direction of feed AM08852v1 Figure 30. Reel for D²PAK and D²PAK/A T REEL DIMENSIONS 40mm min. Access hole At sl ot location B D C N A Full radius Tape slot in core for tape start 25 mm min. width G measured at hub AM08851v2 24/27 DocID6738 Rev 27 LD1085 9 Order codes Order codes Table 13. Order codes Packages TO-220 TO-220FP D²PAK LD1085D2T33R D²PAK/A (T&R) LD1085D2M18R 1.8 V LD1085D2M25R 2.5 V LD1085D2M33R 3.3 V LD1085V50 LD1085V Output voltage 5.0 V LD1085P LD1085D2T-R DocID6738 Rev 27 LD1085D2M-R ADJ 25/27 Revision history 10 LD1085 Revision history Table 14. Document revision history Date Revision 07-Oct-2004 12 Mistake order codes - Table 1. 08-Feb-2005 13 Mistake U.M. load regulation - V ==> mV. 01-Mar-2005 14 Version 1.2 V removed. 22-May-2006 15 Order codes has been updated and new template. 10-Nov-2006 16 Add package DPAK, typo on VO test value in tables 3, 4 and 11. 04-Apr-2007 17 Order codes updated. 07-Jun-2007 18 Order codes updated. 05-Dec-2007 19 Modified: Table 13. 29-Jan-2008 20 Added new order codes for Automotive grade products see Table 13 on page 25. 18-Feb-2008 21 Modified: Table 13 on page 25. 09-Apr-2008 22 Modified: Table 13 on page 25. 14-Jul-2008 23 Modified: Table 13 on page 25. 22-Aug-2008 24 Modified: Table 2 on page 5. 28-Jul-2009 25 Modified: Table 13 on page 25. 18-Feb-2013 26 – Modified Output voltage in Voltage reference parameter Table 7 on page 11 and Table 8 on page 12. – Minor text changes throughout the document. 27 RPN LD1085xx changed to LD1085. Updated the Features and the Description in cover page. Cancelled Table1: Device summary, Table 9: Electrical characteristics of LD1085PY (Automotive Grade). Modified Figure 2: Pin connections (top view), Table 2: Thermal data, Table 13: Order codes, Section 7: Package mechanical data. Added Section 8: Packaging mechanical data. Minor text changes. 08-Oct-2013 26/27 Changes DocID6738 Rev 27 LD1085 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. Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no liability whatsoever relating to the choice, selection or use of the ST products and services described herein. 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