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| LD29300xx 3 A, very low drop voltage regulators Features Very low dropout voltage (Typ. 0.4 at 3 A) Guaranteed output current up to 3 A Fixed voltage with 1 % tolerance at 25 C Internal current and thermal limit Logic controlled electronic shutdown available in PPAK TO-220 D2PAK Description The LD29300xx is a high current, high accuracy, low-dropout voltage regulator series. These regulators feature 400 mV dropout voltage and very low ground current. Designed for high current loads, these devices are also used in lower current, extremely low dropout-critical systems, where their tiny dropout voltage and ground current values are important attributes. Typical applications are in power supply switching post regulation, Series power supply for monitors, Series power supply for VCRs and TVs, Computer systems and Battery powered systems. P2PAK/A P2PAK D2PAK/A Table 1. Device summary Part numbers LD29300XX15 LD29300XX18 LD29300XX25 LD29300XX33 LD29300XX50 LD29300XX80 LD29300XX Output voltages 1.5 V 1.8 V 2.5 V 3.3 V 5.0 V 8.0 V ADJ July 2008 Rev 12 1/26 www.st.com 26 Contents LD29300xx Contents 1 2 3 4 5 6 7 8 9 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Typical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 2/26 LD29300xx Diagram 1 Figure 1. Diagram Schematic diagram for adjustable version Figure 2. Schematic diagram for fixed version * Only for version with inhibit function. 3/26 Pin configuration LD29300xx 2 Figure 3. Pin configuration Pin connections (top view) TO-220 D2PAK P2PAK P2PAK/A D2PAK/A * Not connected for fixed version. 4/26 LD29300xx Typical application 3 Figure 4. Typical application Application circuit VO = VREF (1 + R1/R2) * Only for version with inhibit function. 5/26 Maximum ratings LD29300xx 4 Table 2. Symbol VI IO PD TSTG TOP Maximum ratings Absolute maximum ratings Parameter DC input voltage Output current Power dissipation Storage temperature range Operating junction temperature range Value 30 (1) Internally limited Internally limited -55 to 150 -40 to 125 Unit V mA mW C C 1. Above 14 V the device is automatically in shut-down. Note: Absolute maximum ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied. Thermal data Parameter Thermal resistance junction-ambient Thermal resistance junction-case TO-220 50 3 D2PAK-P2PAK-D2PAK/A-P2PAK/A 60 3 Unit C/W C/W Table 3. Symbol RthJA RthJC 6/26 LD29300xx Electrical characteristics 5 Table 4. Electrical characteristics Electrical characteristics of LD29300#15 (IO = 10 mA, TJ = 25 C, VI = 3.5 V, VINH = 2 V (1), CI = 330 nF, CO = 10 F, unless otherwise specified) Parameter Minimum operating input voltage Output voltage Load regulation Line regulation Supply voltage rejection Test conditions IO = 10mA to 3A, TJ = -40 to 125C IO = 10mA to 3A, VI = 3 to 7V TJ = -40 to 125C IO = 10mA to 3A VI = 3 to 13V f = 120 Hz, VI = 3.5 1V, IO = 1.5A IO = 1.5A, TJ = -40 to 125C Iq Quiescent current IO = 3A, TJ = -40 to 125C VI = 13V, VINH = GND, TJ = -40 to 125C Isc VIL VIH IINH eN Short circuit current Control input logic low Control input logic high Control input current Output noise voltage VI - VO = 5.5V OFF MODE (1), TJ = -40 to 125C ON MODE (1), TJ = -40 to 125C 2 5 60 10 (2) Symbol VI VO VO VO SVR Min. 2.5 1.485 1.47 Typ. Max. Unit V 1.5 1.515 V 1.53 0.2 0.06 65 75 20 45 130 4.5 1.0 0.5 % % dB 50 mA 100 180 A A 0.8 V V A VRMS TJ = -40 to 125C, VINH = 13V BP = 10Hz to 100kHz, IO = 100mA 1. Only for version with Inhibit function. 2. Guaranteed by design 7/26 Electrical characteristics Table 5. LD29300xx Electrical characteristics of LD29300#18 (IO = 10 mA, TJ = 25 C, VI = 3.8 V, VINH = 2 V (1), CI = 330 nF, CO = 10 F, unless otherwise specified) Parameter Output voltage Load regulation Line regulation Supply voltage rejection Test conditions IO = 10mA to 3A, VI = 3 to 7.3V TJ = -40 to 125C IO = 10mA to 3A VI = 3 to 13V f = 120 Hz, VI = 3.8 1V, IO = 1.5A IO = 500mA, TJ = -40 to 125C (3) (3) (2) Symbol VO VO VO SVR Min. 1.782 1.764 Typ. 1.8 Max. 1.818 Unit V 1.836 0.2 0.06 1.0 0.5 % % dB 62 72 0.1 0.2 0.4 20 45 130 4.5 0.7 50 VDROP Dropout voltage IO = 1.5A, TJ = -40 to 125C IO = 3A, TJ = -40 to 125C V (3) IO = 1.5A, TJ = -40 to 125C Iq Quiescent current IO = 3A, TJ = -40 to 125C VI = 13V, VINH = GND, TJ = -40 to 125C Isc VIL VIH IINH eN Short circuit current Control input logic low Control input logic high Control input current Output noise voltage VI - VO = 5.5V OFF MODE (1), mA 100 180 A A 0.8 2 5 60 10 V V A VRMS TJ = -40 to 125C ON MODE (1), TJ = -40 to 125C TJ = -40 to 125C, VINH = 13V BP = 10Hz to 100kHz, IO = 100mA 1. Only for version with Inhibit function. 2. Guaranteed by design. 3. Dropout voltage is defined as the input-to-output differential when the output voltage drops to 99 % of its nominal value with VO + 1 V applied to VI. 8/26 LD29300xx Electrical characteristics Table 6. Electrical characteristics of LD29300#25 (IO = 10 mA, TJ = 25 C, VI = 4.5 V, VINH = 2 V (1), CI = 330 nF, CO = 10 F, unless otherwise specified) Parameter Output voltage Load regulation Line regulation Supply voltage rejection Test conditions IO = 10mA to 3A, VI = 3.5 to 8V TJ = -40 to 125C IO = 10mA to 3A VI = 3 to 13V f = 120 Hz, VI = 4.5 1V, IO = 1.5A IO = 500mA, TJ = -40 to 125C (3) (3) (2) Symbol VO VO VO SVR Min. 2.475 2.45 Typ. 2.5 Max. 2.525 Unit V 2.55 0.2 0.06 1.0 0.5 % % dB 55 70 0.1 0.2 0.4 20 45 130 4.5 0.7 50 VDROP Dropout voltage IO = 1.5A, TJ = -40 to 125C IO = 3A, TJ = -40 to 125C V (3) IO = 1.5A, TJ = -40 to 125C Iq Quiescent current IO = 3A, TJ = -40 to 125C VI = 13V, VINH = GND, TJ = -40 to 125C Isc VIL VIH IINH eN Short circuit current Control input logic low Control input logic high Control input current Output noise voltage VI - VO = 5.5V OFF MODE (1), mA 100 180 A A 0.8 2 5 100 10 V V A VRMS TJ = -40 to 125C ON MODE (1), TJ = -40 to 125C TJ = -40 to 125C, VINH = 13V BP = 10Hz to 100kHz, IO = 100mA 1. Only for version with Inhibit function. 2. Guaranteed by design. 3. Dropout voltage is defined as the input-to-output differential when the output voltage drops to 99 % of its nominal value with VO + 1 V applied to VI. 9/26 Electrical characteristics LD29300xx Table 7. Electrical characteristics of LD29300#33 (IO = 10 mA, TJ = 25 C, VI = 5.3 V, VINH = 2 V (1), CI = 330 nF, CO = 10 F, unless otherwise specified) Parameter Output voltage Load regulation Line regulation Supply voltage rejection Test conditions IO = 10mA to 3A, VI = 4.3 to 8.8V TJ = -40 to 125C IO = 10mA to 3A VI = 4.3 to 13V f = 120 Hz, VI = 5.3 1V, IO = 1.5A IO = 500mA, TJ = -40 to 125C (3) (3) (2) Symbol VO VO VO SVR Min. 3.267 3.234 Typ. 3.3 Max. 3.333 Unit V 3.366 0.2 0.06 1.0 0.5 % % dB 52 67 0.1 0.2 0.4 20 45 130 4.5 0.7 50 VDROP Dropout voltage IO = 1.5A, TJ = -40 to 125C IO = 3A, TJ = -40 to 125C V (3) IO = 1.5A, TJ = -40 to 125C Iq Quiescent current IO = 3A, TJ = -40 to 125C VI = 13V, VINH = GND, TJ = -40 to 125C Isc VIL VIH IINH eN Short circuit current Control input logic low Control input logic high Control input current Output noise voltage VI - VO = 5.5V OFF MODE (1), mA 100 180 A A 0.8 2 5 132 10 V V A VRMS TJ = -40 to 125C ON MODE (1), TJ = -40 to 125C TJ = -40 to 125C, VINH = 13V BP = 10Hz to 100kHz, IO = 100mA 1. Only for version with Inhibit function. 2. Guaranteed by design. 3. Dropout voltage is defined as the input-to-output differential when the output voltage drops to 99 % of its nominal value with VO + 1 V applied to VI. 10/26 LD29300xx Electrical characteristics Table 8. Electrical characteristics of LD29300#50 (IO = 10 mA, TJ = 25 C, VI = 7 V, VINH = 2 V (1), CI = 330 nF, CO = 10 F, unless otherwise specified) Parameter Output voltage Load regulation Line regulation Supply voltage rejection Test conditions IO = 10mA to 3A, VI = 6 to 10.5V TJ = -40 to 125C IO = 10mA to 3A VI = 6 to 13V f = 120 Hz, VI = 7 1V, IO = 1.5A IO = 500mA, TJ = -40 to 125C (3) (3) (2) Symbol VO VO VO SVR Min. 4.95 4.9 Typ. 5 Max. 5.05 Unit V 5.1 0.2 0.06 1.0 0.5 % % dB 49 64 0.1 0.2 0.4 20 45 130 4.5 0.7 50 VDROP Dropout voltage IO = 1.5A, TJ = -40 to 125C IO = 3A, TJ = -40 to 125C V (3) IO = 1.5A, TJ = -40 to 125C Iq Quiescent current IO = 3A, TJ = -40 to 125C VI = 13V, VINH = GND, TJ = -40 to 125C Isc VIL VIH IINH eN Short circuit current Control input logic low Control input logic high Control input current Output noise voltage VI - VO = 5.5V OFF MODE (1), mA 100 180 A A 0.8 2 5 200 10 V V A VRMS TJ = -40 to 125C ON MODE (1), TJ = -40 to 125C TJ = -40 to 125C, VINH = 13V BP = 10Hz to 100kHz, IO = 100mA 1. Only for version with Inhibit function. 2. Guaranteed by design. 3. Dropout voltage is defined as the input-to-output differential when the output voltage drops to 99 % of its nominal value with VO + 1 V applied to VI. 11/26 Electrical characteristics LD29300xx Table 9. Electrical characteristics of LD29300#80 (IO = 10 mA, TJ = 25 C, VI = 10 V, VINH = 2 V (1), CI = 330 nF, CO = 10 F, unless otherwise specified) Parameter Output voltage Load regulation Line regulation Supply voltage rejection Test conditions IO = 10mA to 3A, VI = 9 to 13V TJ = -40 to 125C IO = 10mA to 3A VI = 9 to 13V f = 120 Hz, VI = 9 1V, IO = 1.5A IO = 500mA, TJ = -40 to 125C (3) (3) (2) Symbol VO VO VO SVR Min. 7.92 7.84 Typ. 8 Max. 8.08 Unit V 8.16 0.2 0.06 1.0 0.5 % % dB 45 59 0.1 0.2 0.4 20 45 130 4.5 0.7 50 VDROP Dropout voltage IO = 1.5A, TJ = -40 to 125C IO = 3A, TJ = -40 to 125C V (3) IO = 1.5A, TJ = -40 to 125C Iq Quiescent current IO = 3A, TJ = -40 to 125C VI = 13V, VINH = GND, TJ = -40 to 125C Isc VIL VIH IINH eN Short circuit current Control input logic low Control input logic high Control input current Output noise voltage VI - VO = 5.5V OFF MODE (1), mA 100 180 A A 0.8 2 5 320 10 V V A VRMS TJ = -40 to 125C ON MODE (1), TJ = -40 to 125C TJ = -40 to 125C, VINH = 13V BP = 10Hz to 100kHz, IO = 100mA 1. Only for version with Inhibit function. 2. Guaranteed by design. 3. Dropout voltage is defined as the input-to-output differential when the output voltage drops to 99 % of its nominal value with VO + 1 V applied to VI. 12/26 LD29300xx Table 10. Electrical characteristics Electrical characteristics of LD29300#ADJ (IO = 10 mA, TJ = 25 C, VI = 3.23 V, VINH = 2 V (1), CI = 330 nF, CO = 10 F adjust pin tied to output pin) Parameter Test conditions IO = 10mA to 3A, TJ = -40 to 125C IO = 10mA to 3A VI = 2.5 V to 13V IO = 10mA to 3A, VI = 2.5 to 4.5V TJ = -40 to 125C (2) f = 120 Hz, VI = 3.23 1V, IO = 1.5A (3) IO = 1.5A, TJ = -40 to 125C -1% -2% 65 75 20 45 130 50 mA 100 180 1 4.5 J Symbol VI VO VO VREF SVR Min. 2.5 Typ. Max. Unit V Minimum operating input voltage Load regulation Line regulation Reference voltage Supply voltage rejection 0.2 0.06 1.23 1.0 0.5 +1% % % V +2% dB Iq Quiescent current IO = 3A, TJ = -40 to 125C VI = 13V, VINH = GND, TJ = -40 to 125C (3) A A A IADJ Isc VIL VIH IINH eN Adjust pin current Short circuit current Control input logic low Control input logic high Control input current Output noise voltage TJ = -40 to 125C VI - VO = 5.5V OFF MODE ON MODE (1),T = -40 to 125C 2 5 50 0.8 V V (1), TJ = -40 to 125C TJ = -40 to 125C, VINH = 13V BP = 10Hz to 100kHz, IO = 100mA 10 A VRMS 1. Only for version with Inhibit function. 2. Reference voltage is measured between output and GND pin, with ADJ PIN tied to VOUT. 3. Guaranteed by design. 13/26 Typical characteristics LD29300xx 6 Figure 5. Typical characteristics Output voltage vs temperature Figure 6. Dropout voltage vs temperature Figure 7. Dropout voltage vs output current Figure 8. Quiescent current vs output current Figure 9. Quiescent current vs output current Figure 10. Quiescent current vs supply voltage 14/26 LD29300xx Typical characteristics Figure 11. Quiescent current vs temperature Figure 12. Quiescent current vs temperature Figure 13. Short circuit current vs temperature Figure 14. Supply voltage rejection vs temperature Figure 15. Stability vs CO Figure 16. Line transient VI=3.5 to 5.5V, ILOAD=10mA, VO=2.5V, CO=10F 15/26 Typical characteristics Figure 17. Load transient LD29300xx VI=4.5V, IO=10mA to 3A, VO=2.5V, CO=47F 16/26 LD29300xx Package mechanical data 7 Package mechanical data In order to meet environmental requirements, ST offers these devices in ECOPACK(R) 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. 17/26 Package mechanical data LD29300xx TO-220 (A type) mechanical data Dim. A b b1 c D E e e1 F H1 J1 L L1 L20 L30 P Q 3.75 2.65 mm. Min. 4.40 0.61 1.15 0.49 15.25 10.0 2.4 4.95 1.23 6.2 2.40 13.0 3.5 16.4 28.9 3.85 2.95 0.148 0.104 Typ. Max. 4.60 0.88 1.70 0.70 15.75 10.40 2.7 5.15 1.32 6.6 2.72 14.0 3.93 Min. 0.173 0.024 0.045 0.019 0.600 0.394 0.094 0.195 0.048 0.244 0.094 0.512 0.138 0.646 1.138 0.152 0.116 inch. Typ. Max. 0.181 0.035 0.067 0.028 0.620 0.409 0.106 0.203 0.052 0.260 0.107 0.551 0.155 0015988/N 18/26 LD29300xx Package mechanical data 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 19/26 Package mechanical data LD29300xx 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 20/26 LD29300xx Package mechanical data P2PAK mechanical data mm. Dim. Min. A A1 A2 b c c2 D D2 E E1 e e1 L L2 L3 L5 R V2 0 3.20 6.60 13.70 1.25 0.90 1.55 0.40 8 0 10.00 8.5 3.60 7.00 14.50 1.40 1.70 2.40 0.126 0.260 0.539 0.049 0.035 0.061 0.016 8 4.30 2.40 0.03 0.80 0.45 1.17 8.95 8 10.40 0.393 0.334 Typ. Max. 4.80 2.80 0.23 1.05 0.60 1.37 9.35 Min. 0.169 0.094 0.001 0.031 0.017 0.046 0.352 0.315 0.409 0.409 0.142 0.275 0.571 0.055 0.067 0.094 Typ. Max. 0.188 0.110 0.009 0.041 0.023 0.053 0.368 inch. 7226255/B 21/26 Package mechanical data LD29300xx P2PAK/A mechanical data mm. Dim. Min. A A2 C D D1 E F G G1 H1 H2 L L1 L2 M R V2 0 1.27 2.4 0.40 8 0 10.00 15 8 1.40 3.2 0.050 0.094 0.016 8 4.30 0.03 1.17 2.40 8.95 0.45 0.80 3.20 6.60 8.5 10.40 15.85 0.393 0.590 0.315 0.055 0.126 Typ. Max. 4.80 0.23 1.37 2.80 9.35 0.60 1.05 3.60 7.00 Min. 0.169 0.001 0.046 0.094 0.352 0.017 0.031 0.126 0.260 0.334 Typ. Max. 0.188 0.009 0.053 0.110 0.368 0.023 0.041 0.142 0.275 0.409 0.409 0.624 inch. 7157127/A 22/26 LD29300xx 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. 23/26 Order codes LD29300xx 8 Table 11. Order codes Order codes Packages TO-220 D2 PAK D PAK/A 2 P PAK 2 (1) P PAK/A 2 Output voltage 1.5 V LD29300P2T15R LD29300D2T18R LD29300D2M18R LD29300D2M25R LD29300V33 LD29300V50 LD29300D2T50R(1) LD29300D2M33R LD29300D2M50R LD29300P2T33R LD29300P2T50R LD29300P2T80R LD29300P2TR 1. Available on request LD29300P2T18R LD29300P2M18R 1.8 V 2.5 V LD29300P2M33R LD29300P2M50R 3.3 V 5.0 V 8.0 V LD29300P2MTR (1) ADJ 24/26 LD29300xx Revision history 9 Table 12. Date Revision history Document revision history Revision 7 8 9 10 11 12 Order codes updated. Order codes updated. Order codes updated. Order codes updated. Modified: Table 11 on page 24. Modified: Table 11 on page 24. Changes 21-Oct-2005 10-Apr-2007 11-May-2007 08-Jun-2007 03-Apr-2008 11-Jul-2008 25/26 LD29300xx 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. If any part of this document refers to any third party products or services it shall not be deemed a license grant by ST for the use of such third party products or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoever of such third party products or services or any intellectual property contained therein. UNLESS OTHERWISE SET FORTH IN ST'S TERMS AND CONDITIONS OF SALE ST DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY WITH RESPECT TO THE USE AND/OR SALE OF ST PRODUCTS INCLUDING WITHOUT LIMITATION IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION), OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. 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