LD1585C_05

LD1585C series 5A Low dropout fast response positive voltage regulator adjustable and fixed Features ■ ■ ■ Typical dropout 1.2V Fast transient response Three terminal adjustable or fixed output voltage 1.5V 1.8V, 2.5V, 2.85V, 3.3V, 5V, 8V, 9V Guaranteed output current up to 5A Output tolerance ±1% at 25°C and ±2% in full temperature range Internal power and thermal limit Wide operating temperature range 0°C to 125°C Package available: TO-220, D2PAK/A Pinout compatibility with standard adjustable VREG The most important feature of the device consist in lower dropout voltage and very fast transient response. A 2.85V 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 LD1585C quiescent current flows into the load, so increase efficiency. Only a 10µF minimum capacitor is need for stability. The device is supplied in TO-220, D2PAK and D2PAK/A. On chip trimming allows the regulator to reach a very tight output voltage tolerance, within ±1% at 25°C. TO-220 D2PAK/A ■ ■ ■ ■ ■ ■ Description The LD1585C is a LOW DROP Voltage Regulator able to provide up to 5A of Output Current. Dropout is guaranteed at a maximum of 1.4V at the maximum output current, decreasing at lower loads. The device has been improved to be utilized in low voltage applications where transient response and minimum input voltage are critical. Order codes Part number TO-220 D2PAK/A (T&R) LD1585CD2M15R LD1585CD2M18R LD1585CD2M25R LD1585CD2M28R LD1585CD2M33R LD1585CV50 LD1585CD2M50R LD1585CD2M80R LD1585CD2M90R LD1585CV June 2007 LD1585CD2M-R Rev. 5 Output voltage 1.5 V 1.8 V 2.5 V 2.85 V 3.3 V 5.0 V 8.0 V 9.0 V ADJ 1/25 www.st.com 25 LD1585C series Contents 1 2 3 4 5 6 7 8 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Typical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 2/25 LD1585C series Diagram 1 Figure 1. Diagram Schematic diagram 3/25 Pin configuration LD1585C series 2 Figure 2. Pin configuration Pin connections (top view) TO-220 D2PAK/A 4/25 LD1585C series Maximum ratings 3 Table 1. 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 0 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 D2PAK/A 3 62.5 Unit °C/W °C/W Table 2. Symbol RthJC RthJA 5/25 Typical application LD1585C series 4 Figure 3. Typical application Application circuits VO = VREF(1+R2/R1) 6/25 LD1585C series Electrical characteristics 5 Table 3. Symbol VO ΔVO ΔVO Vd Iq Isc Electrical characteristics Electrical characteristics of LD1585C#15 (VI=4.5V, CI = CO =10µF, TJ = 0 to 125°C, unless otherwise specified.) Parameter Output Voltage Test Conditions IO = 0 mA, TJ = 25°C IO = 0 to 5A, VI = 3 to 25V Line Regulation IO = 0 mA, VI = 3 to 15V IO = 0 mA, VI = 3 to 15V Load Regulation Dropout Voltage Quiescent Current Short Circuit Current Thermal Regulation SVR eN S S Supply Voltage Rejection IO = 0 to 5A, TJ = 25°C IO = 0 to 5A IO = 5 A VI ≤25V VI - VO = 5V TJ = 25°C, 30ms pulse f = 120 Hz, CO = 25µF, IO = 5A VI - VO = 3 ± 1V 60 5.5 (1) Min. 1.485 1.47 Typ. 1.5 1.5 0.005 0.005 0.05 0.05 1.2 5 7 0.004 75 0.003 0.5 Max. 1.515 1.53 0.2 0.2 0.3 0.5 1.4 10 Unit V V % % % % V mA A TJ = 25°C 0.02 %/W dB % % RMS Output Noise Voltage TJ = 25°C, f =10Hz to 10KHz (% of VO) Temperature Stability Long Term Stability TJ = 125°C, 1000Hrs 0.03 1 % 1. See short-circuit current curve for available output current at fixed dropout. 7/25 Electrical characteristics LD1585C series Table 4. Symbol VO ΔVO ΔVO Vd Iq Isc Electrical characteristics of LD1585C#18 (VI=4.8V, CI = CO =10µF, TJ = 0 to 125°C, unless otherwise specified.) Parameter Output Voltage Test Conditions IO = 0 mA, TJ = 25°C IO = 0 to 5A, VI = 3.3 to 25V Line Regulation (1) Min. 1.782 1.764 Typ. 1.8 1.8 0.005 0.005 0.05 0.05 1.2 5 Max. 1.818 1.836 0.2 Unit V V mV IO = 0 mA, VI = 3.3 to 15V, TJ = 25°C IO = 0 mA, VI = 3.3 to 15V 0.2 0.3 mV 0.5 1.4 10 V mA A 0.02 %/W dB % % 1 % Load Regulation Dropout Voltage Quiescent Current Short Circuit Current Thermal Regulation IO = 0 to 5A, TJ = 25°C IO = 0 to 5A IO = 5 A VI ≤25V VI - VO = 5.5V TJ = 25°C, 30ms pulse f = 120 Hz, CO = 25µF, IO = 5A VI - VO = 3 ± 1V 60 5.5 7 0.004 75 0.003 0.5 SVR eN S S Supply Voltage Rejection RMS Output Noise Voltage TJ = 25°C, f =10Hz to 10KHz (% of VO) Temperature Stability Long Term Stability TJ = 125°C, 1000Hrs 0.03 1. See short-circuit current curve for available output current at fixed dropout. 8/25 LD1585C series Electrical characteristics Table 5. Symbol VO ΔVO ΔVO Vd Iq Isc Electrical characteristics of LD1585C#25 (VI=5.5V, CI = CO =10µF, TJ = 0 to 125°C, unless otherwise specified.) Parameter Output Voltage Test Conditions IO = 0 mA, TJ = 25°C IO = 0 to 5A, VI = 4 to 25V Line Regulation (1) Min. 2.475 2.45 Typ. 2.5 2.5 0.005 0.005 0.05 0.05 1.2 5 Max. 2.525 2.55 0.2 Unit V V mV IO = 0 mA, VI = 4 to 15V, TJ = 25°C IO = 0 mA, VI = 4 to 15V 0.2 0.3 mV 0.5 1.4 10 V mA A 0.02 %/W dB % % 1 % Load Regulation Dropout Voltage Quiescent Current Short Circuit Current Thermal Regulation IO = 0 to 5A, TJ = 25°C IO = 0 to 5A IO = 5 A VI ≤25V VI - VO = 5.5V TJ = 25°C, 30ms pulse f = 120 Hz, CO = 25µF, IO = 5A VI - VO = 3 ± 1V 60 5.5 7 0.004 75 0.003 0.5 SVR eN S S Supply Voltage Rejection RMS Output Noise Voltage TJ = 25°C, f =10Hz to 10KHz (% of VO) Temperature Stability Long Term Stability TJ = 125°C, 1000Hrs 0.03 1. See short-circuit current curve for available output current at fixed dropout. 9/25 Electrical characteristics LD1585C series Table 6. Symbol VO ΔVO ΔVO Vd Iq Isc Electrical characteristics of LD1585C#285 (VI=5.85V, CI = CO =10µF, TJ = 0 to 125°C, unless otherwise specified.) Parameter Output Voltage Test Conditions IO = 0 mA, TJ = 25°C IO = 0 to 5A, VI = 4.5 to 25V Line Regulation (1) Min. 2.821 2.793 Typ. 2.85 2.85 0.005 0.005 0.05 0.05 1.2 5 Max. 2.879 2.907 0.2 Unit V V mV IO = 0 mA, VI = 4.5 to 15V, TJ = 25°C IO = 0 mA, VI = 4.5 to 15V 0.2 0.3 mV 0.5 1.4 10 V mA A 0.02 %/W dB % % 1 % Load Regulation Dropout Voltage Quiescent Current Short Circuit Current Thermal Regulation IO = 0 to 5A, TJ = 25°C IO = 0 to 5A IO = 5 A VI ≤25V VI - VO = 5.5V TJ = 25°C, 30ms pulse f = 120 Hz, CO = 25µF, IO = 5A VI - VO = 3 ± 1V 60 5.5 7 0.004 75 0.003 0.5 SVR eN S S Supply Voltage Rejection RMS Output Noise Voltage TJ = 25°C, f =10Hz to 10KHz (% of VO) Temperature Stability Long Term Stability TJ = 125°C, 1000Hrs 0.03 1. See short-circuit current curve for available output current at fixed dropout. 10/25 LD1585C series Electrical characteristics Table 7. Symbol VO ΔVO ΔVO Vd Iq Isc Electrical characteristics of LD1585C#33 (VI=6.3V, CI = CO =10µF, TJ = 0 to 125°C, unless otherwise specified.) Parameter Output Voltage Test Conditions IO = 0 mA, TJ = 25°C IO = 0 to 5A, VI = 4.8 to 25V Line Regulation (1) Min. 3.267 3.234 Typ. 3.3 3.35 0.005 0.005 0.05 0.05 1.2 5 Max. 3.333 3.366 0.2 Unit V V mV IO = 0 mA, VI = 4.8 to 15V, TJ = 25°C IO = 0 mA, VI = 4.9 to 15V 0.2 0.3 mV 0.5 1.4 10 V mA A 0.02 %/W dB % % 1 % Load Regulation Dropout Voltage Quiescent Current Short Circuit Current Thermal Regulation IO = 0 to 5A, TJ = 25°C IO = 0 to 5A IO = 5 A VI ≤25V VI - VO = 5.5V TJ = 25°C, 30ms pulse f = 120 Hz, CO = 25µF, IO = 5A VI - VO = 3 ± 1V 60 5.5 7 0.004 75 0.003 0.5 SVR eN S S Supply Voltage Rejection RMS Output Noise Voltage TJ = 25°C, f =10Hz to 10KHz (% of VO) Temperature Stability Long Term Stability TJ = 125°C, 1000Hrs 0.03 1. See short-circuit current curve for available output current at fixed dropout. 11/25 Electrical characteristics LD1585C series Table 8. Symbol VO ΔVO ΔVO Vd Iq Isc Electrical characteristics of LD1585C#50 (VI=8V, CI = CO =10µF, TJ = 0 to 125°C, unless otherwise specified.) Parameter Output Voltage Test Conditions IO = 0 mA, TJ = 25°C IO = 0 to 5A, VI = 6.5 to 30V Line Regulation (1) Min. 4.95 4.9 Typ. 5 5 0.005 0.005 0.05 0.05 1.2 5 Max. 5.05 5.1 0.2 Unit V V mV IO = 0 mA, VI = 6.5 to 20V, TJ = 25°C IO = 0 mA, VI = 6.5 to 20V 0.2 0.3 mV 0.5 1.4 10 V mA A 0.02 %/W dB % % 1 % Load Regulation Dropout Voltage Quiescent Current Short Circuit Current Thermal Regulation IO = 0 to 5A, TJ = 25°C IO = 0 to 5A IO = 5 A VI ≤25V VI - VO = 5.5V TJ = 25°C, 30ms pulse f = 120 Hz, CO = 25µF, IO = 5A VI - VO = 3 ± 1V 60 5.5 7 0.004 75 0.003 0.5 SVR eN S S Supply Voltage Rejection RMS Output Noise Voltage TJ = 25°C, f =10Hz to 10KHz (% of VO) Temperature Stability Long Term Stability TJ = 125°C, 1000Hrs 0.03 1. See short-circuit current curve for available output current at fixed dropout. 12/25 LD1585C series Electrical characteristics Table 9. Symbol VO ΔVO ΔVO Vd Iq Isc Electrical characteristics of LD1585C#80 (VI=11V, CI = CO =10µF, TJ = 0 to 125°C, unless otherwise specified.) Parameter Output Voltage Test Conditions IO = 0 mA, TJ = 25°C IO = 0 to 5A, VI = 9.5 to 30V Line Regulation (1) Min. 7.92 7.84 Typ. 8 8 0.005 0.005 0.05 0.05 1.2 5 Max. 8.08 8.16 0.2 Unit V V mV IO = 0 mA, VI = 9.5 to 20V, TJ = 25°C IO = 0 mA, VI = 9.5 to 20V 0.2 0.3 mV 0.5 1.4 10 V mA A 0.02 %/W dB % % 1 % Load Regulation Dropout Voltage Quiescent Current Short Circuit Current Thermal Regulation IO = 0 to 5A, TJ = 25°C IO = 0 to 5A IO = 5 A VI ≤25V VI - VO = 5.5V TJ = 25°C, 30ms pulse f = 120 Hz, CO = 25µF, IO = 5A VI - VO = 3 ± 1V 60 5.5 7 0.004 75 0.003 0.5 SVR eN S S Supply Voltage Rejection RMS Output Noise Voltage TJ = 25°C, f =10Hz to 10KHz (% of VO) Temperature Stability Long Term Stability TJ = 125°C, 1000Hrs 0.03 1. See short-circuit current curve for available output current at fixed dropout. 13/25 Electrical characteristics LD1585C series Table 10. Symbol VO ΔVO ΔVO Vd Iq Isc Electrical characteristics of LD1585C#90 (VI=12V, CI = CO =10µF, TJ = 0 to 125°C, unless otherwise specified.) Parameter Output Voltage Test Conditions IO = 0 mA, TJ = 25°C IO = 0 to 5A, VI = 10.5 to 30V Line Regulation (1) Min. 8.91 8.82 Typ. 9 9 0.005 0.005 0.05 0.05 1.2 5 Max. 9.09 9.18 0.2 Unit V V mV IO = 0 mA, VI = 10.5 to 20V, TJ = 25°C IO = 0 mA, VI = 10.5 to 20V 0.2 0.3 mV 0.5 1.4 10 V mA A 0.02 %/W dB % % 1 % Load Regulation Dropout Voltage Quiescent Current Short Circuit Current Thermal Regulation IO = 0 to 5A, TJ = 25°C IO = 0 to 5A IO = 5 A VI ≤25V VI - VO = 5.5V TJ = 25°C, 30ms pulse f = 120 Hz, CO = 25µF, IO = 5A VI - VO = 3 ± 1V 60 5.5 7 0.004 75 0.003 0.5 SVR eN S S Supply Voltage Rejection RMS Output Noise Voltage TJ = 25°C, f =10Hz to 10KHz (% of VO) Temperature Stability Long Term Stability TJ = 125°C, 1000Hrs 0.03 1. See short-circuit current curve for available output current at fixed dropout. 14/25 LD1585C series Table 11. Symbol VO ΔVO ΔVO Vd IO(min) Isc Electrical characteristics Electrical characteristics of LD1585C# (VI=4.25V, CI = CO =10µF, TJ = 0 to 125°C, unless otherwise specified.) Parameter Output Voltage Test Conditions IO = 10mA, VI - VO = 3V, TJ = 25°C IO = 10mA to 5A, VI - VO =1.5 to 25V Line Regulation (1) Min. 1.237 1.225 Typ. 1.25 1.25 0.015 0.1 0.1 0.25 1.2 3 Max. 1.263 1.275 0.2 0.2 0.3 0.5 1.4 10 Unit V V % % % % V mA A IO = 10mA, VI = 2.75 to 15V TJ = 25°C IO = 10mA, VI = 2.75 to 15V Load Regulation Dropout Voltage Minimum Load Current Short Circuit Current Thermal Regulation IO = 10mA to 5A, TJ = 25°C IO = 0 to 5A IO = 5A VI = 25V VI - VO = 5.5V TJ = 25°C, 30ms pulse f = 120 Hz, CO = 25µF, CADJ = 25µF, IO = 5A, VI - VO = 3 ± 1V IO = 10 mA (1) 5.5 7 0.004 0.02 %/W dB SVR IADJ ΔIADJ eN S S Supply Voltage Rejection Adjust Pin Current 60 75 50 0.2 0.003 0.5 100 5 µA µA % % % Adjust Pin Current Change IO = 10mA to 5A, VI = 3 to 25V RMS Output Noise Voltage TJ = 25°C, f =10Hz to 10KHz (% of VO) Temperature Stability Long Term Stability TJ = 125°C, 1000Hrs 0.5 1. See short-circuit current curve for available output current at fixed dropout. 15/25 Typical characteristics LD1585C series 6 Figure 4. Typical characteristics (unless otherwise specified TJ=25°C, CI=CO=10µF tant.) Output voltage vs temperature Figure 5. Short circuit current vs dropout voltage Figure 6. Line regulation vs temperature Figure 7. Line regulation vs temperature Figure 8. Load regulation vs temperature Figure 9. Load regulation vs temperature 16/25 LD1585C series Typical characteristics 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 change vs temperature Figure 15. Quiescent current vs temperature 17/25 Typical characteristics LD1585C series Figure 16. Reference voltage vs temperature Figure 17. Minimum load current vs temperature Figure 18. Supply voltage rejection vs output current Figure 19. Supply voltage rejection vs output current Figure 20. Supply voltage rejection vs frequency Figure 21. Supply voltage rejection vs frequency 18/25 LD1585C series Typical characteristics Figure 22. Supply voltage rejection vs temperature Figure 23. Supply voltage rejection vs temperature Figure 24. Line transient Figure 25. Load transient VI=15 to 16V, IO=200mA, CI = 1µF(tant), CO=10µF(tant) VI=15 V, IO=0.1 to 5 A, CI = 10µF(tant), CO=10µF(tant) Figure 26. Load transient VI=7 V, IO=0.1 to 5 A, CI = 10µF(tant), CO=10µF(tant) 19/25 Package mechanical data LD1585C series 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. 20/25 LD1585C series 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 21/25 Package mechanical data LD1585C series 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 22/25 LD1585C series Package mechanical data Tape & Reel D2PAK-P 2PAK-D 2PAK/A-P 2PAK/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 23/25 Revision history LD1585C series 8 Table 12. Date Revision history Revision history Revision 3 4 5 Mistake order codes - Table 1. Order codes has been updated. Order codes has been updated and the document has been reformatted. Changes 07-Oct-2004 20-Oct-2005 08-Jun-2007 24/25 LD1585C series 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. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. 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