LD1085XX33

LD1085xx 3 A low drop positive voltage regulator adjustable and fixed Features ■ ■ ■ ■ ■ ■ ■ ■ Typical dropout 1.3 V (at 3 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 Full Pack package 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, DPAK, D2PAK, D2PAK/A Pinout compatibility with standard adjustable VREG DPAK D2PAK D2PAK/A TO-220 TO-220FP into the load, so increase efficiency. Only a 10 µF minimum capacitor is need for stability. The device is supplied in TO-220, TO-220FP, DPAK, D2PAK and D2PAK/A. On chip trimming allows the regulator to reach a very tight output voltage tolerance, within ± 1 % at 25 °C. The LD1085xx is available as Automotive Grade in TO-220FP package only, for the option of adjustable output voltage whose commercial part number is shown in the Table 11 (order codes). This device is 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. ■ Description The LD1085xx 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 LD1085xx is pin to pin compatible with the older 3-terminal adjustable regulators, but has better performances in term of drop and output tolerance. 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 LD1085xx quiescent current flows Table 1. Device summary Part numbers LD1085XX LD1085XX15 LD1085XX18 LD1085XX25 LD1085XX33 LD1085XX50 Rev 21 1/28 www.st.com 28 February 2008 Contents LD1085xx Contents 1 2 3 4 5 6 7 8 9 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Schematic application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 2/28 LD1085xx Diagram 1 Figure 1. Diagram Schematic diagram 3/28 Pin configuration LD1085xx 2 Figure 2. Pin configuration Pin connections (top view) TO-220 TO-220FP D2PAK D2PAK/A DPAK 4/28 LD1085xx Maximum ratings 3 Table 2. Maximum ratings Absolute maximum ratings Parameter DC input voltage Output current Power dissipation Storage temperature range Operating junction temperature range Value 30 Internally limited Internally limited -55 to +150 -40 to +125 Unit V mA mW °C °C Symbol VI IO PD TSTG TOP Note: Absolute maximum ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied Thermal data Parameter Thermal resistance junction-case Thermal resistance junction-ambient TO-220 3 50 DPAK 8 100 D2PAK D2PAK/A 3 62.5 Unit °C/W °C/W Table 3. Symbol RthJC RthJA 5/28 Schematic application LD1085xx 4 Figure 3. Schematic application Application circuit R2 V O = V REF ⋅ ⎛ 1 + ------⎞ ⎝ R⎠ 1 6/28 LD1085xx Electrical characteristics 5 Table 4. Symbol VO ΔVO ΔVO Vd Iq Isc Electrical characteristics Electrical characteristics of LD1085#15 (VI = 4.5 V, CI = CO =10 µF, TA = -40 to 125 °C, unless otherwise specified). Parameter Output voltage (1) Test condition IO = 0 mA, TJ = 25°C IO = 0 to 3 A, VI = 3.1 to 30 V Line regulation IO = 0 mA, VI = 3.1 to 18 V, TJ = 25°C IO = 0 mA, VI = 3.1 to 15 V Load regulation Dropout voltage Quiescent current Short circuit current Thermal regulation SVR eN S S Supply voltage rejection RMS output noise voltage (% of VO) Temperature stability Long term stability TA = 125°C, 1000Hrs IO = 0 to 3 A, TJ = 25°C IO = 0 to 3 A IO =3 A VI ≤30 V VI - VO = 5 V VI - VO = 25 V TA = 25°C, 30ms pulse f = 120 Hz, CO = 25 µF, IO = 3 A VI = 7.5 ± 3 V TA = 25°C, f =10 Hz to 10 kHz 60 3.2 0.2 Min. 1.485 1.47 Typ. 1.5 1.5 0.2 0.4 2 4 1.3 5 4.5 0.5 0.008 72 0.003 0.5 0.5 0.04 Max. 1.515 1.53 4 4 10 20 1.5 10 Unit V V mV mV mV mV V mA A A %/W dB % % % 1. See short-circuit current curve for available output current at fixed dropout. 7/28 Electrical characteristics Table 5. Symbol VO ΔVO ΔVO Vd Iq Isc LD1085xx Electrical characteristics of LD1085#18 (VI = 4.8 V, CI = CO =10 µF, TA = -40 to 125 °C, unless otherwise specified). Parameter Output voltage (1) Test condition IO = 0 mA, TJ = 25°C IO = 0 to 3 A, VI = 3.4 to 30 V Line regulation IO = 0 mA, VI = 3.4 to 18 V TJ = 25°C IO = 0 mA, VI = 3.4 to 15 V Load regulation Dropout voltage Quiescent current Short circuit current Thermal regulation IO = 0 to 3 A, TJ = 25°C I O = 0 to 3 A IO = 3 A VI ≤30 V VI - VO = 5 V VI - VO = 25 V TA = 25°C, 30 ms pulse f = 120 Hz, CO = 25 µF, IO = 3 A VI = 7.5 ± 3 V 60 3.2 0.2 Min. 1.782 1.764 Typ. 1.8 1.8 0.2 0.4 2 4 1.3 5 4.5 0.5 0.008 72 0.003 0.5 TA = 125°C, 1000 Hrs 0.5 0.04 Max. 1.818 1.836 4 4 10 20 1.5 10 Unit V V mV mV mV mV V mA A A %/W dB % % % SVR eN S S Supply voltage rejection RMS output noise voltage (% of TA = 25°C, f =10 Hz to 10 kHz VO) Temperature stability Long term stability 1. See short-circuit current curve for available output current at fixed dropout. 8/28 LD1085xx Electrical characteristics Table 6. Symbol VO ΔVO ΔVO Vd Iq Isc Electrical characteristics of LD1085#25 (VI = 5.5 V, CI = CO =10 µF, TA = -40 to 125 °C, unless otherwise specified). Parameter Output voltage (1) Test condition IO = 0 mA, TJ = 25°C IO = 0 to 3 A, VI = 4.1 to 30 V Line regulation IO = 0 mA, VI = 4.1 to 18 V, TJ = 25°C IO = 0 mA, VI = 4.1 to 18 V Load regulation Dropout voltage Quiescent current Short circuit current Thermal regulation IO = 0 to 3 A, TJ = 25°C IO = 0 to 3 A IO = 3 A VI ≤30 V VI - VO = 5 V VI - VO = 25 V TA = 25°C, 30ms pulse f = 120 Hz, CO = 25µF, IO = 3 A VI = 7.5 ± 3 V TA = 25°C, f =10 Hz to 10 kHz 60 3.2 0.2 Min. 2.475 2.45 Typ. 2.5 2.5 0.2 0.4 2 4 1.3 5 4.5 0.5 0.008 72 0.003 0.5 TA = 125°C, 1000 Hrs 0.5 0.04 Max. 2.525 2.55 4 4 10 20 1.5 10 Unit V V mV mV mV mV V mA A A %/W dB % % % SVR eN S S Supply voltage rejection RMS output noise voltage (% of VO) Temperature stability Long term stability 1. See short-circuit current curve for available output current at fixed dropout. 9/28 Electrical characteristics LD1085xx Table 7. Symbol VO ΔVO ΔVO Vd Iq Isc Electrical characteristics of LD1085#33 (VI = 6.3 V, CI = CO =10 µF, TA = -40 to 125 °C, unless otherwise specified). Parameter Output voltage (1) Test condition IO = 0 mA, TJ = 25°C IO = 0 to 3 A, VI = 4.9 to 30 V Line regulation IO = 0 mA, VI = 4.9 to 18 V, TJ = 25°C IO = 0 mA, VI = 4.9 to 18 V Load regulation Dropout voltage Quiescent current Short circuit current Thermal regulation IO = 0 to 3 A, TJ = 25°C IO = 0 to 3 A IO = 3 A VI ≤30 V VI - VO = 5 V VI - VO = 25 V TA = 25°C, 30 ms pulse f = 120 Hz, CO = 25 µF, IO = 3 A VI = 8.3 ± 3 V TA = 25°C, f =10 Hz to 10 kHz 60 3.2 0.2 Min. 3.267 3.234 Typ. 3.3 3.35 0.5 1 3 7 1.3 5 4.5 0.5 0.008 72 0.003 0.5 TA = 125°C, 1000 Hrs 0.5 0.04 Max. 3.333 3.366 6 6 15 20 1.5 10 Unit V V mV mV mV mV V mA A A %/W dB % % % SVR eN S S Supply voltage rejection RMS output noise voltage (% of VO) Temperature stability Long term stability 1. See short-circuit current curve for available output current at fixed dropout. 10/28 LD1085xx Electrical characteristics Table 8. Symbol VO ΔVO ΔVO Vd Iq Isc Electrical characteristics of LD1085#50 (VI = 8 V, CI = CO =10 µF, TA = -40 to 125 °C, unless otherwise specified). Parameter Output voltage (1) Test condition IO = 0 mA, TJ = 25°C IO = 0 to 3 A, VI = 6.6 to 30 V Line regulation IO = 0 mA, VI = 6.6 to 20 V, TJ = 25°C IO = 0 mA, VI = 6.6 to 20 V Load regulation Dropout voltage Quiescent current Short circuit current Thermal regulation IO = 0 to 3 A, TJ = 25°C IO = 0 to 3 A IO = 3 A VI ≤30 V VI - VO = 5 V VI - VO = 25 V TA = 25°C, 30 ms pulse f = 120 Hz, CO = 25 µF, IO = 3 A VI = 10 ± 3 V TA = 25°C, f = 10 Hz to 10 kHz 60 3.2 0.2 Min. 4.95 4.9 Typ. 5 5 0.5 1 5 10 1.3 5 4.5 0.5 0.008 72 0.003 0.5 TA = 125°C, 1000 Hrs 0.5 0.04 Max. 5.05 5.1 10 10 10 35 1.5 10 Unit V V mV mV mV mV V mA A A %/W dB % % % SVR eN S S Supply voltage rejection RMS output noise voltage (% of VO) Temperature stability Long term stability 1. See short-circuit current curve for available output current at fixed dropout. 11/28 Electrical characteristics LD1085xx Table 9. Symbol VO Electrical characteristics of LD1085# (VI = 4.25 V, CI = CO =10 µF, TA = -40 to 125 °C, unless otherwise specified). Parameter Output voltage (1) Test condition IO = 10 mA TJ = 25°C IO = 10 mA to 3 A, VI = 2.85 to 30 V Line regulation IO = 10 mA, VI = 2.85 to 16.5 V, TJ = 25°C IO = 10 mA, VI = 2.85 to 16.5 V Min. 1.237 1.225 Typ. 1.25 1.25 0.015 0.035 0.1 0.2 1.3 3 5.5 0.5 6.5 0.7 0.003 0.015 60 72 55 0.2 0.003 0.5 TA = 125°C, 1000 Hrs 0.5 120 5 Max. 1.263 1.275 0.2 0.2 0.3 0.4 1.5 10 Unit V V % % % % V mA A A %/W dB µA µA % % % ΔVO ΔVO Vd IO(min) Isc Load regulation Dropout voltage Minimum load current Short circuit current Thermal regulation IO = 10 mA to 3 A, TJ = 25°C IO = 0 to 3 A IO = 3 A VI = 30 V VI - VO = 5 V VI - VO = 25 V TA = 25°C, 30ms pulse f = 120 Hz, CO = 25 µF,CADJ = 25 µF, IO = 3 A, VI = 6.25 ± 3 V VI = 4.25 V, IO = 10 mA (1) SVR IADJ ΔIADJ eN S S Supply voltage rejection Adjust pin current Adjust pin current change IO = 10 mA to 3 A, VI = 2.85 to 16.5 V TA = 25°C, f =10 Hz to 10 kHz RMS output noise voltage (% of VO) Temperature stability Long term stability 1. See short-circuit current curve for available output current at fixed dropout. 12/28 LD1085xx Electrical characteristics Table 10. Symbol VO ΔVO ΔVO Vd IO(min) Isc Electrical characteristics of LD1085PY (Automotive Grade) (VI = 4.25 V, CI = CO =10 µF, TA = -40 to 125 °C, unless otherwise specified). Parameter Output voltage (1) Line regulation Load regulation Dropout voltage Minimum load current Short circuit current Thermal regulation Test condition IO = 10 mA TA = 25°C IO = 10 mA to 3 A, VI = 2.85 to 30 V IO = 10 mA, VI = 2.85 to 16.5 V IO = 0 to 3 A IO = 3 A VI = 30 V VI - VO = 5 V, TA = 25°C VI - VO = 25 V, TA = 25°C TA = 25°C, 30 ms pulse f = 120 Hz, CO = 25 µF,CADJ = 25 µF, IO = 3 A, VI = 6.25 ± 3 V, TA = 25°C VI = 4.25 V, IO = 10 mA IO = 10 mA to 3 A, VI = 2.85 to 16.5 V TA = 25°C, f =10 Hz to 10 kHz 60 5.5 0.5 Min. 1.237 1.225 Typ. 1.25 1.25 0.035 0.2 1.3 3 6.5 0.7 0.003 0.015 72 55 0.2 0.003 0.5 TA = 125°C, 1000 Hrs 0.5 120 5 Max. 1.263 1.275 0.2 0.4 1.5 10 Unit V V % % V mA A A %/W dB µA µA % % % SVR IADJ ΔIADJ eN S S Supply voltage rejection Adjust pin current Adjust pin current change (1) RMS output noise voltage (% of VO) Temperature stability Long term stability 1. See short-circuit current curve for available output current at fixed dropout. 13/28 Typical application LD1085xx 6 Figure 4. Typical application (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 14/28 LD1085xx Typical application 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 Figure 14. Line regulation vs temperature Figure 15. Supply voltage rejection vs output current 15/28 Typical application LD1085xx Figure 16. Supply voltage rejection vs frequency Figure 17. Supply voltage rejection vs temperature Figure 18. Minimum load current vs temperature Figure 19. Stability Figure 20. Stability Figure 21. Line transient VI=12 to 13V, IO=200mA, CI = 1µF(tant), CO=10µF(tant), CADJ=1µF 16/28 LD1085xx Figure 22. Line transient Figure 23. Load transient Typical application VI=12 to 13V, IO=200mA, CI = 1µF(tant), CO=10µF(tant), CADJ=1µF VI=12V, IO=0.12 to 3A, CI = 1µF(tant), CO=10µF(tant), CADJ=1µF Figure 24. Load transient VI=12V, IO=0.12 to 3A, CI = 1µF(tant), CO=10µF(tant), CADJ=1µF 17/28 Package mechanical data LD1085xx 7 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. 18/28 LD1085xx Package mechanical data TO-220 mechanical data Dim. A C D D1 E F F1 F2 G G1 H2 L2 L4 L5 L6 L7 L9 DIA. 13.0 2.65 15.25 6.2 3.5 3.75 0.49 0.61 1.14 1.14 4.95 2.4 10.0 16.4 14.0 2.95 15.75 6.6 3.93 3.85 0.511 0.104 0.600 0.244 0.137 0.147 mm. Min. 4.40 1.23 2.40 1.27 0.70 0.88 1.70 1.70 5.15 2.7 10.40 0.019 0.024 0.044 0.044 0.194 0.094 0.393 0.645 0.551 0.116 0.620 0.260 0.154 0.151 Typ. Max. 4.60 1.32 2.72 Min. 0.173 0.048 0.094 0.050 0.027 0.034 0.067 0.067 0.203 0.106 0.409 inch. Typ. Max. 0.181 0.051 0.107 P011C 19/28 Package mechanical data LD1085xx TO-220FP mechanical data Dim. A B D E F F1 F2 G G1 H L2 L3 L4 L5 L6 L7 DIA. 28.6 9.8 2.9 15.9 9 3 mm. Min. 4.40 2.5 2.5 0.45 0.75 1.15 1.15 4.95 2.4 10.0 16 30.6 10.6 3.6 16.4 9.3 3.2 1.126 0.385 0.114 0.626 0.354 0.118 Typ Max. 4.60 2.7 2.75 0.70 1 1.50 1.50 5.2 2.7 10.40 Min. 0.173 0.098 0.098 0.017 0.030 0.045 0.045 0.194 0.094 0.393 0.630 1.204 0.417 0.142 0.645 0.366 0.126 inch. Typ. Max. 0.181 0.106 0.108 0.027 0.039 0.059 0.059 0.204 0.106 0.409 7012510A-H 20/28 LD1085xx Package mechanical data DPAK mechanical data mm. Dim. Min. A A1 A2 B b4 C C2 D D1 E E1 e e1 H L (L1) L2 L4 R V2 2.2 0.9 0.03 0.64 5.2 0.45 0.48 6 5.1 6.4 4.7 2.28 4.4 9.35 1 2.8 0.8 0.6 0.2 0° 8° 0° 1 0.023 0.008 8° 4.6 10.1 0.173 0.368 0.039 0.110 0.031 0.039 6.6 0.252 0.185 0.090 0.181 0.397 Typ. Max. 2.4 1.1 0.23 0.9 5.4 0.6 0.6 6.2 Min. 0.086 0.035 0.001 0.025 0.204 0.017 0.019 0.236 0.200 0.260 Typ. Max. 0.094 0.043 0.009 0.035 0.212 0.023 0.023 0.244 inch. 0068772-F 21/28 Package mechanical data LD1085xx D2PAK mechanical data mm. Dim. Min. A A1 A2 B B2 C C2 D D1 E E1 G L L2 L3 M R V2 0° 4.88 15 1.27 1.4 2.4 0.4 8° 0° 10 8.5 5.28 15.85 1.4 1.75 3.2 0.192 0.590 0.050 0.055 0.094 0.016 8° 4.4 2.49 0.03 0.7 1.14 0.45 1.23 8.95 8 10.4 0.393 0.335 0.208 0.624 0.055 0.068 0.126 Typ. Max. 4.6 2.69 0.23 0.93 1.7 0.6 1.36 9.35 Min. 0.173 0.098 0.001 0.027 0.044 0.017 0.048 0.352 0.315 0.409 Typ. Max. 0.181 0.106 0.009 0.036 0.067 0.023 0.053 0.368 inch. P011P6G 22/28 LD1085xx Package mechanical data D2PAK/A mechanical data mm. Dim. Min. A A1 A2 B B1 B2 C C2 D D1 E E1 G L L2 M R V2 0° 4.88 15 1.27 2.4 0.4 8° 0° 10 8.5 5.28 15.85 1.4 3.2 0.192 0.591 0.050 0.094 0.016 8° 4.40 2.49 0.03 0.7 0.8 1.14 0.45 1.23 8.95 8 10.4 0.394 0.335 0.208 0.624 0.055 0.126 Typ. Max. 4.60 2.69 0.23 0.93 1.3 1.7 0.60 1.36 9.35 Min. 0.173 0.098 0.001 0.028 0.031 0.045 0.018 0.048 0.352 0.315 0.409 Typ. Max. 0.181 0.106 0.009 0.037 0.051 0.067 0.024 0.054 0.368 inch. 7106164/D 23/28 Package mechanical data LD1085xx Tape & reel DPAK-PPAK mechanical data mm. Dim. Min. A C D N T Ao Bo Ko Po P 6.80 10.40 2.55 3.9 7.9 6.90 10.50 2.65 4.0 8.0 12.8 20.2 60 22.4 7.00 10.60 2.75 4.1 8.1 0.268 0.409 0.100 0.153 0.311 0.272 0.413 0.104 0.157 0.315 13.0 Typ. Max. 330 13.2 0.504 0.795 2.362 0.882 0.2.76 0.417 0.105 0.161 0.319 0.512 Min. Typ. Max. 12.992 0.519 inch. 24/28 LD1085xx Package mechanical data Tape & reel D2PAK-P2PAK-D2PAK/A-P2PAK/A mechanical data mm. Dim. Min. A C D N T Ao Bo Ko Po P 10.50 15.70 4.80 3.9 11.9 10.6 15.80 4.90 4.0 12.0 12.8 20.2 60 14.4 10.70 15.90 5.00 4.1 12.1 0.413 0.618 0.189 0.153 0.468 0.417 0.622 0.193 0.157 0.472 13.0 Typ. Max. 180 13.2 0.504 0.795 2.362 0.567 0.421 0.626 0.197 0.161 0.476 0.512 Min. Typ. Max. 7.086 0.519 inch. 25/28 Order codes LD1085xx 8 Table 11. Order codes Order codes Packages TO-220 TO-220FP D2 PAK DPAK (T&R) LD1085DT15R LD1085D2T18R LD1085V25 LD1085D2T33R LD1085V50 LD1085V LD1085P LD1085PY (1) D PAK/A 2 D PAK/A (T&R) 2 Output voltage 1.5 V 1.8 V LD1085DT18R LD1085DT25R LD1085DT33R LD1085D2M25R LD1085D2M33R 2.5 V 3.3 V 5.0 V LD1085D2T-R LD1085D2M LD1085D2M-R ADJ ADJ 1. Automotive Grade products. 26/28 LD1085xx Revision history 9 Table 12. Date Revision history Document revision history Revision 12 13 14 15 16 17 18 19 20 21 Mistake order codes - Table 1. Mistake U.M. load regulation - V ==> mV. Version 1.2 V removed. Order codes has been updated and new template. Add package DPAK, typo on VO test value in tables 3, 4 and 11. Order codes updated. Order codes updated. Modified: Table 11. Added new order codes for Automotive grade products see Table 11 on page 26. Modified: Table 11 on page 26. Changes 07-Oct-2004 08-Feb-2005 01-Mar-2005 22-May-2006 10-Nov-2006 04-Apr-2007 07-Jun-2007 05-Dec-2007 29-Jan-2008 18-Feb-2008 27/28 LD1085xx 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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