Datasheet

ManualsBrandsSTMICROELECTRONICS ManualsVoltage RegulatorsLD1086DTTRY

This is information on a product in full production.

October 2013 DocID6739 Rev 32 1/48

LD1086

1.5 A adjustable and fixed low drop positive voltage regulator

Datasheet

production data

Features

• Typical dropout: 1.3 V at 1.5 A

• Three-terminal adjustable or fixed output

voltage: 1.8 V, 2.5 V, 3.3 V, 5 V, 12 V

• Automotive grade (adjustable V

OUT

in TO-220

and DPAK packages only)

• Output current guaranteed up to 1.5 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, D²PAK, D²PAK/A,

DPAK and DFN8 (4 x 4 mm)

• Pinout compatibility with standard adjustable

voltage regulators

Description

The LD1086 is a low drop voltage regulator

capable of providing 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

older 3-terminal adjustable regulators, but has

better performance in terms of drop and output

tolerance. Unlike PNP regulators, where a part of

the output current is wasted as quiescent current,

the LD1086 quiescent current flows into the load,

increasing efficiency. Only a 10 µF (minimum)

capacitor is needed for stability. The device is

available in a TO-220, D²PAK, D²PAK/A, DPAK or

DFN8 (4x4 mm) package. On-chip trimming

allows the regulator to reach a very tight output

voltage tolerance; within ± 1% at 25 °C. The

LD1086xx is available as automotive grade for

adjustable output voltages in the TO-220 and

DPAK packages. The PAT, SYL, SBL statistical

tests have been performed, and the devices are

qualified according to the AEC-Q100 specification

for the automotive market in the temperature

range of - 40 °C to 125 °C.

DPAK

D²PAK/A

TO-220

D²PAK

DFN8 (4x4)

www.st.com

Summary of content (48 pages)

PAGE 1
LD1086 1.5 A adjustable and fixed low drop positive voltage regulator Datasheet - production data DPAK TO-220 D²PAK DFN8 (4x4) D²PAK/A Features • Typical dropout: 1.3 V at 1.5 A 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 older 3-terminal adjustable regulators, but has better performance in terms of drop and output tolerance.
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Contents LD1086 Contents 1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4 Schematic application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 5 Electrical characteristics . . . . . .
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LD1086 List of tables 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. Table 21. Table 22. Table 23. Table 24. Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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List of figures LD1086 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. Figure 36. Figure 37. Figure 38. Figure 39. Figure 40. Figure 41. Figure 42. Figure 43.
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LD1086 1 Diagram Diagram Figure 1.
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Pin configuration 2 LD1086 Pin configuration Figure 2. Pin connections (top view) TO-220 D²PAK DPAK D²PAK/A NC 1 8 IN NC 2 7 IN ADJ/GND 3 6 NC NC 4 5 NC OUTPUT AM11888v1 DFN8 (4x4) Note: 6/48 The TAB is physically connected to the output (this is valid for the TO-220 package too).
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LD1086 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.
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Schematic application 4 LD1086 Schematic application Figure 3.
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LD1086 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 LD1086#18 Symbol VO ΔVO Parameter Output voltage (1) Line regulation Test condition Min. Typ. Max. Unit IO = 0 mA, TJ = 25 °C 1.782 1.8 1.818 V IO = 0 to 1.5 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 1.
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Electrical characteristics LD1086 VI = 5.5 V, CI = CO =10 µF, TA = -40 to 125 °C, unless otherwise specified. Table 4. Electrical characteristics of LD1086#25 Symbol VO ΔVO Parameter Output voltage (1) Line regulation Test condition Min. Typ. Max. Unit IO = 0 mA, TJ = 25 °C 2.475 2.5 2.525 V IO = 0 to 1.5 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 1.5 A, TJ = 25 °C 0.
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LD1086 Electrical characteristics VI = 6.3 V, CI = CO =10 µF, TA = -40 to 125 °C, unless otherwise specified. Table 5. Electrical characteristics of LD1086#33 Symbol VO ΔVO Parameter Output voltage (1) Line regulation Test condition Min. Typ. Max. Unit IO = 0 mA, TJ = 25 °C 3.267 3.3 3.333 V IO = 0 to 1.5 A, VI = 4.9 to 30 V 3.234 3.3 3.366 V IO = 0 mA, VI = 4.9 to 18 V, TJ = 25 °C 0.5 6 mV IO = 0 mA, VI = 4.9 to 18 V 1 6 mV IO = 0 to 1.5 A, TJ = 25 °C 1 10 mV IO = 0 to 1.
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Electrical characteristics LD1086 VI = 6.6 V, CI = CO =10 µF, TA = -40 to 125 °C, unless otherwise specified. Table 6. Electrical characteristics of LD1086#36 Symbol VO ΔVO Parameter Output voltage (1) Line regulation Test condition Min. Typ. Max. Unit IO = 0 mA, TJ = 25 °C 3.564 3.6 3.636 V IO = 0 to 1.5 A, VI = 5.2 to 30 V 3.528 3.6 3.672 V IO = 0 mA, VI = 5.2 to 18 V, TJ = 25 °C 0.5 10 mV IO = 0 mA, VI = 5.2 to 18 V 1 10 mV IO = 0 to 1.5 A, TJ = 25 °C 3 15 mV IO = 0 to 1.
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LD1086 Electrical characteristics VI = 15 V, CI = CO =10 µF, TA = -40 to 125 °C, unless otherwise specified. Table 7. Electrical characteristics of LD1086#12 Symbol VO ΔVO 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 1.5 A, VI = 13.8 to 30 V 11.76 12 12.24 V IO = 0 mA, VI = 13.8 to 25 V, TJ = 25 °C 1 25 mV IO = 0 mA, VI = 13.8 to 25 V 2 25 mV IO = 0 to 1.5 A, TJ = 25 °C 12 36 mV IO = 0 to 1.
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Electrical characteristics LD1086 VI = 4.25 V, CI = CO =10 µF, TA = -40 to 125 °C, unless otherwise specified. Table 8. Electrical characteristics of LD1086B# Symbol Parameter Vref Reference voltage ΔVO Line regulation (1) Test condition Min. Typ. Max. Unit IO = 10 mA TJ = 25 °C 1.231 1.25 1.269 V IO = 10 mA to 1.5 A, VI = 2.85 to 30 V 1.219 1.25 1.281 V IO = 10 mA, VI = 2.8 to 16.5 V, TJ = 25 °C 0.015 0.2 % IO = 10 mA, VI = 2.8 to 16.5 V 0.035 0.2 % IO = 10 mA to 1.
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LD1086 Electrical characteristics VI = 4.25 V, CI = CO =10 µF, TA = -40 to 125 °C, unless otherwise specified. Table 9. Electrical characteristics of LD1086# Symbol Parameter Vref Reference voltage ΔVO Line regulation (1) Test condition Min. Typ. Max. Unit IO = 10 mA TJ = 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 IO = 10 mA, VI = 2.8 to 16.5 V, TJ = 25 °C 0.015 0.2 % IO = 10 mA, VI = 2.8 to 16.5 V 0.035 0.2 % IO = 10 mA to 1.
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Electrical characteristics LD1086 VI = 4.25 V, CI = CO =10 µF, TA = -40 to 125 °C, unless otherwise specified. Table 10. Electrical characteristics of LD1086DTTRY and LD1086VY (Automotive grade) Symbol 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 % Vref Reference 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.
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LD1086 6 Typical application Typical application Unless otherwise specified TJ = 25 °C, CI = CO = 10 µF. Figure 4. Output voltage vs. temp. (VI = 5 V) Figure 5. Output voltage vs. temp. (VI = 15 V) Figure 6. Output voltage vs. temperature (VI = 4.25 V) Figure 7. Short circuit current vs. dropout voltage Figure 8. Line regulation vs. temperature Figure 9. Load regulation vs.
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Typical application LD1086 Figure 10. Dropout voltage vs. temperature 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.
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LD1086 Typical application 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.
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Typical application LD1086 Figure 22. Stability for 2.85 V Figure 23. Stability for 12 V Figure 24. Line transient (VI = 12 to 13 V) Figure 25. Line transient (IO = 200 mA) VI = 12 to 13 V, IO = 200 mA, CI = 1 µF (tant), CO = 10 µF (tant), No CADJ VI = 12 to 13 V, IO = 200 mA, CI = 1 µF (tant), CO = 10 µF (tant), No CADJ Figure 26. Line transient (CADJ = 1 µF) VI = 12 to 13 V, IO = 200 mA, CI = 1 µF (tant), CO = 10 µF (tant), CADJ = 1 µF 20/48 Figure 27. Load transient VI = 13 V, IO = 0.1 to 1.
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LD1086 Typical application Figure 28. Load transient (Trise = Tfall = 10 µs) VI = 13 V, IO = 0.1 to 1.5 A, CI = 1 µF (tant), CO = 10 µF (tant), CADJ = 1 µF Figure 29. Thermal protection VO = 2.
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Package mechanical data 7 LD1086 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 11. TO-220 mechanical data (type STD-ST Dual Gauge) mm Dim. Min. Typ. A 4.40 4.60 b 0.61 0.88 b1 1.14 1.70 c 0.48 0.70 D 15.25 15.
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LD1086 Package mechanical data Figure 30.
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Package mechanical data LD1086 Table 12. TO-220 mechanical data (type STD-ST Single Gauge) mm Dim. Min. 24/48 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.
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LD1086 Package mechanical data Figure 31.
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Package mechanical data LD1086 Table 13. DPAK mechanical data mm Dim. Min. Typ. A 2.20 2.40 A1 0.90 1.10 A2 0.03 0.23 b 0.64 0.90 b4 5.20 5.40 c 0.45 0.60 c2 0.48 0.60 D 6.00 6.20 D1 E 5.10 6.40 6.60 E1 4.70 e 2.28 e1 4.40 4.60 H 9.35 10.10 L 1.00 1.50 (L1) 2.80 L2 0.80 L4 0.60 1.00 R V2 26/48 Max. 0.
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LD1086 Package mechanical data Figure 32.
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Package mechanical data LD1086 Figure 33. DPAK footprint (a) Footprint_REV_K a.
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LD1086 Package mechanical data Table 14. D²PAK (SMD 2L STD-ST) type 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 L2 1.30 1.75 R V2 0.
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Package mechanical data LD1086 Figure 34.
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LD1086 Package mechanical data Table 15. D²PAK (SMD 2L Wooseok-subcon.) type C mechanical data mm Dim. Min. Typ. Max. A 4.30 4.70 A1 0 0.20 b 0.70 0.90 b2 1.17 1.37 c 0.45 0.50 0.60 c2 1.25 1.30 1.40 D 9 9.20 9.40 D1 7.50 E 10 E1 8.50 10.40 e 2.54 e1 4.88 5.08 H 15 15.30 J1 2.20 2.60 L 1.79 2.79 L1 1 1.40 L2 1.20 1.60 R V2 0.
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Package mechanical data LD1086 Table 16. D²PAK (SMD 2L Wooseok-subcon.
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LD1086 Package mechanical data Table 17.
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Package mechanical data LD1086 Table 18. DFN8L (4x4 mm.) mechanical data mm. Dim. Min. Typ. Max. A 0.80 0.90 1 A1 0 0.02 0.05 A3 0,20 b 0.23 0.30 0.38 D 3.90 4 4.10 D2 2.82 3 3.23 E 3.90 4 4.10 E2 2.05 2.20 2.30 e L 34/48 0.80 0.40 DocID6739 Rev 32 0.50 0.
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LD1086 Package mechanical data Figure 35.
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Package mechanical data LD1086 Figure 36.
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LD1086 Package mechanical data Table 19. D²PAK (SMD 3L STD-ST) type 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.
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Package mechanical data LD1086 Figure 37.
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LD1086 Package mechanical data Table 20. D²PAK (SMD 3L Wooseok-subcon.) type B mechanical data mm Dim. Min. Typ. Max. A 4.30 4.70 A1 0 0.20 b 0.70 0.90 b2 1.17 1.37 c 0.45 0.50 0.60 c2 1.25 1.30 1.40 D 9 9.20 9.40 D1 7.50 E 9.80 E1 7.50 10.20 e 2.54 e1 5.08 5.08 15.30 15.60 H 15 J1 2.20 2.60 L 1.79 2.79 L1 1 1.40 R V2 0.
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Package mechanical data LD1086 Figure 38. D²PAK (SMD 3L Wooseok-subcon.
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LD1086 Package mechanical data Figure 39.
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Packaging mechanical data 8 LD1086 Packaging mechanical data Table 21. DPAK and D²PAK tape and reel mechanical data Tape Reel mm mm Dim. Dim. Min. Max. A0 6.8 7 A B0 10.4 10.6 B 1.5 12.1 C 12.8 1.6 D 20.2 G 16.4 50 B1 42/48 Min. Max. 330 13.2 D 1.5 D1 1.5 E 1.65 1.85 N F 7.4 7.6 T K0 2.55 2.75 P0 3.9 4.1 Base qty. 2500 P1 7.9 8.1 Bulk qty. 2500 P2 1.9 2.1 R 40 T 0.25 0.35 W 15.7 16.3 DocID6739 Rev 32 18.4 22.
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LD1086 Packaging mechanical data Figure 40. Tape for DPAK and D2PAK 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 41. Reel for DPAK and D2PAK 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.
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Packaging mechanical data LD1086 Table 22. Reel DFN8L dimensions mm. Dim. Min. Typ. A inch. Max. Min. 330 13.0 13.2 Max. 12.992 C 12.8 D 20.2 0.795 N 60 2.362 T Typ. 0.504 0.512 22.4 0.519 0.882 Figure 42. DFN8L carrier tape (dimension are in mm.
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LD1086 Packaging mechanical data Figure 43.
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Order codes 9 LD1086 Order codes Table 23. Order codes Packages TO-220 D²PAK LD1086V18 LD1086D2T18TR LD1086V33 D²PAK/A DPAK DFN8 LD1086DT18TR 1.8 V LD1086DT25TR 2.5 V LD1086D2T33TR LD1086D2M33TR LD1086DT33TR 3.3 V LD1086D2T50TR LD1086DT50TR 5.0 V LD1086D2T12TR LD1086V LD1086V-DG LD1086VY LD1086D2TTR 12.0 V LD1086D2MTR LD1086DTTR (1) ADJ LD1086BD2TTR LD1086BD2MTR LD1086DTTRY (2) ADJ LD1086BDTTR ADJ LD1086BV-DG (1) ADJ 1. TO-220 Dual Gauge frame. 2.
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LD1086 10 Revision history Revision history Table 24. Document revision history Date Revision 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 23. 31-Jan-2008 20 Added new order codes for Automotive grade products. 18-Feb-2008 21 Modified: Table 23 on page 46.
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LD1086 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.