LD29150XX LD29150XXxx 1.5 A, very low drop voltage regulators Features ■ Very low dropout voltage (typ. 0.4 at 1.5 A) ■ Guaranteed output current up to 1.5 A ■ Fixed and adjustable output voltage (± 1 % at 25 °C) ■ Internal current and thermal limit ■ Logic controlled electronic shutdown available in PPAK and P²PAK DPAK PPAK Description The LD29150xx 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. Table 1. P²PAK Device summary Order codes Part numbers Output voltages DPAK PPAK P²PAK LD29150XX18 LD29150DT18R 1.8 V LD29150XX25 LD29150DT25R 2.5 V LD29150XX33 LD29150DT33R LD29150XX50 LD29150DT50R LD29150XX October 2010 LD29150P2T33R 3.3 V LD29150PT50R 5.0 V LD29150PTR ADJ Doc ID 9614 Rev 16 1/22 www.st.com 22 Contents LD29150XX, LD29150XXxx Contents 1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 6 Typical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 7 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 8 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 2/22 Doc ID 9614 Rev 16 LD29150XX, LD29150XXxx Diagram 1 Diagram Figure 1. Schematic diagram for adjustable version Figure 2. Schematic diagram for fixed version * Only for version with inhibit function. Doc ID 9614 Rev 16 3/22 Pin configuration LD29150XX, LD29150XXxx 2 Pin configuration Figure 3. Pin connections (top view) PPAK P²PAK DPAK * Not connected for fixed version. 4/22 Doc ID 9614 Rev 16 LD29150XX, LD29150XXxx Typical application 3 Typical application Figure 4. Application circuit VO = VREF (1 + R1/R2) * Only for version with inhibit function. Doc ID 9614 Rev 16 5/22 Maximum ratings LD29150XX, LD29150XXxx 4 Maximum ratings Table 2. Absolute maximum ratings Symbol Parameter Value Unit (1) VI DC input voltage VO DC output voltage -0.3 to 20 V Inhibit input voltage -0.3 to 20 V VINH 30 V 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 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. Table 3. Thermal data Symbol Parameter RthJA Thermal resistance junction-ambient RthJC Thermal resistance junction-case 6/22 DPAK PPAK P²PAK Unit 100 100 60 °C/W 8 8 3 °C/W Doc ID 9614 Rev 16 LD29150XX, LD29150XXxx 5 Electrical characteristics Electrical characteristics IO = 10 mA, TJ = 25 °C, VI = 3.8 V, VINH = 2 V (Note 3), CI = 330 nF, CO = 10 µF, unless otherwise specified. Table 4. Electrical characteristics of LD29150#18 Symbol Parameter Test conditions IO = 10 mA to 1.5 A, VI = 3 to 7.3 V TJ = - 40 to 125°C Min. Typ. Max. 1.782 1.8 1.818 Unit VO Output voltage ΔVO Load regulation IO = 10 mA to 1.5 A 0.2 1.0 % ΔVO Line regulation VI = 3 to 13 V 0.06 0.5 % SVR Supply voltage rejection f = 120 Hz, VI = 3.8 ± 1 V, IO = 0.75 A (Note 1) VDROP Iq Dropout voltage Quiescent current V 1.764 62 1.836 72 dB IO = 250 mA, TJ = - 40 to 125°C (Note 2) 0.1 IO = 0.75 A, TJ = - 40 to 125°C (Note 2) 0.2 IO = 1.5 A, TJ = - 40 to 125°C (Note 2) 0.4 0.7 IO = 0.75 A, TJ = - 40 to 125°C 15 40 IO = 1.5 A, TJ = - 40 to 125°C 30 80 VI = 13 V, VINH = GND, TJ = - 40 to 125°C 130 180 2.2 V mA µA Isc Short circuit current VI - VO = 5.5 V VIL Control input logic low OFF MODE, (Note 3), TJ = - 40 to 125°C VIH Control input logic high ON MODE, (Note 3), TJ = - 40 to 125°C IINH Control input current TJ = - 40 to 125°C, VINH = 13 V 5 eN Output noise voltage BP = 10 Hz to 100 kHz, IO = 100 mA 72 µVRMS 150 °C TSHDN Note: Thermal shutdown A 0.8 2 V V 10 µA 1 Guaranteed by design. 2 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. 3 Only for version with Inhibit function. Doc ID 9614 Rev 16 7/22 Electrical characteristics LD29150XX, LD29150XXxx IO = 10 mA, TJ = 25 °C, VI = 4.5 V, VINH = 2 V (Note 3), CI = 330 nF, CO = 10 µF, unless otherwise specified. Table 5. Electrical characteristics of LD29150#25 Symbol Parameter Test conditions IO = 10 mA to 1.5 A, VI = 3.5 to 8 V TJ = - 40 to 125°C Min. Typ. Max. 2.475 2.5 2.525 Unit VO Output voltage ΔVO Load regulation IO = 10 mA to 1.5 A 0.2 1.0 % ΔVO Line regulation VI = 3.5 to 13 V 0.06 0.5 % SVR Supply voltage rejection f = 120 Hz, VI = 4.5 ±1 V, IO = 0.75 A (Note 1) VDROP Iq Dropout voltage Quiescent current dB IO = 0.75 A, TJ = - 40 to 125°C (Note 2) 0.2 IO = 1.5 A, TJ = - 40 to 125°C (Note 2) 0.4 0.7 IO = 0.75 A, TJ = - 40 to 125°C 15 40 IO = 1.5 A, TJ = - 40 to 125°C 30 80 VI = 13 V, VINH = GND, TJ = - 40 to 125°C 130 180 2.2 VI - VO = 5.5 V VIL Control input logic low OFF MODE, (Note 3), TJ = - 40 to 125°C VIH Control input logic high ON MODE, (Note 3), TJ = - 40 to 125°C IINH Control input current TJ = - 40 to 125°C, VINH = 13 V eN Output noise voltage BP = 10 Hz to 100 kHz, IO = 100 mA 8/22 70 0.1 Short circuit current Note: 55 2.55 IO = 250 mA, TJ = - 40 to 125°C (Note 2) Isc TSHDN V 2.45 Thermal shutdown V mA µA A 0.8 2 V V 5 10 µA 100 µVRMS 150 °C 1 Guaranteed by design. 2 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. 3 Only for version with Inhibit function. Doc ID 9614 Rev 16 LD29150XX, LD29150XXxx Electrical characteristics IO = 10 mA, TJ = 25 °C, VI = 5.3 V, VINH = 2 V (Note 3), CI = 330 nF, CO = 10 µF, unless otherwise specified. Table 6. Electrical characteristics of LD29150#33 Symbol Parameter Test conditions IO = 10 mA to 1.5 A, VI = 4.3 to 8.8 V TJ = - 40 to 125°C Min. Typ. Max. 3.267 3.3 3.333 Unit VO Output voltage ΔVO Load regulation IO = 10 mA to 1.5 A 0.2 1.0 % ΔVO Line regulation VI = 4.3 to 13 V 0.06 0.5 % SVR Supply voltage rejection f = 120 Hz, VI = 5.3 ±1 V, IO = 0.75 A (Note 1) VDROP Iq Dropout voltage Quiescent current 67 dB 0.1 IO = 0.75 A, TJ = - 40 to 125°C (Note 2) 0.2 IO = 1.5 A, TJ = - 40 to 125°C (Note 2) 0.4 0.7 IO = 0.75 A, TJ = - 40 to 125°C 15 40 IO = 1.5 A, TJ = - 40 to 125°C 30 80 VI = 13 V, VINH = GND, TJ = - 40 to 125°C 130 180 2.2 Short circuit current VI - VO = 5.5 V VIL Control input logic low OFF MODE, (Note 3), TJ = - 40 to 125°C VIH Control input logic high ON MODE, (Note 3), TJ = - 40 to 125°C IINH Control input current TJ = - 40 to 125°C, VINH = 13 V eN Output noise voltage BP = 10 Hz to 100 kHz, IO = 100 mA Note: 52 3.366 IO = 250 mA, TJ = - 40 to 125°C (Note 2) Isc TSHDN V 3.234 Thermal shutdown V mA µA A 0.8 2 V V 5 10 µA 132 µVRMS 150 °C 1 Guaranteed by design. 2 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. 3 Only for version with Inhibit function. Doc ID 9614 Rev 16 9/22 Electrical characteristics LD29150XX, LD29150XXxx IO = 10 mA, TJ = 25 °C, VI = 7 V, VINH = 2 V (Note 3), CI = 330 nF, CO = 10 µF, unless otherwise specified. Table 7. Electrical characteristics of LD29150#50 Symbol Parameter Test conditions IO = 10 mA to 1.5 A, VI = 6 to 10.5 V TJ = - 40 to 125°C Min. Typ. Max. 4.95 5 5.05 Unit VO Output voltage ΔVO Load regulation IO = 10 mA to 1.5 A 0.2 1.0 % ΔVO Line regulation VI = 6 to 13 V 0.06 0.5 % SVR Supply voltage rejection f = 120 Hz, VI = 7 ±1 V, IO = 0.75 A (Note 1) VDROP Iq Dropout voltage Quiescent current dB IO = 0.75 A, TJ = - 40 to 125°C (Note 2) 0.2 IO = 1.5 A, TJ = - 40 to 125°C (Note 2) 0.4 0.7 IO = 0.75 A, TJ = - 40 to 125°C 15 40 IO = 1.5 A, TJ = - 40 to 125°C 30 80 VI = 13 V, VINH = GND, TJ = - 40 to 125°C 130 180 2.2 VI - VO = 5.5 V VIL Control input logic low OFF MODE, (Note 3), TJ = - 40 to 125°C VIH Control input logic high ON MODE, (Note 3), TJ = - 40 to 125°C IINH Control input current TJ = - 40 to 125°C, VINH = 13 V eN Output noise voltage BP = 10 Hz to 100 kHz, IO = 100 mA 10/22 64 0.1 Short circuit current Note: 49 5.1 IO = 250 mA, TJ = - 40 to 125°C (Note 2) Isc TSHDN V 4.9 Thermal shutdown V mA µA A 0.8 2 V V 5 10 µA 200 µVRMS 150 °C 1 Guaranteed by design. 2 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. 3 Only for version with Inhibit function. Doc ID 9614 Rev 16 LD29150XX, LD29150XXxx Electrical characteristics IO = 10 mA, TJ = 25 °C, VI = 3.23 V, VINH = 2 V (Note 3), CI = 330 nF, CO = 10 µF adjust pin tied to output pin. Table 8. Electrical characteristics of LD29150#ADJ Symbol Parameter Test conditions Min. Typ. Max. Unit Minimum operating input voltage IO = 10 mA to 1.5 A, TJ = - 40 to 125°C ΔVO Load regulation IO = 10 mA to 1.5 A 0.2 1.0 % ΔVO Line regulation VI = 2.5 V to 13 V, IO = 10 mA 0.06 0.5 % +1% Reference voltage IO = 10 mA to 1.5 A, VI = 2.5 to 4.5 V TJ = - 40 to 125°C (Note 2) 1.23 VREF SVR Supply voltage rejection VI Iq Quiescent current f = 120 Hz, VI = 3.23 ±1 V, IO = 0.75 A (Note 1) 2.5 -1% V V -2% 45 +2% 75 dB IO = 0.75 A, TJ = - 40 to 125°C 15 40 IO = 1.5 A, TJ = - 40 to 125°C 30 80 VI = 13 V, VINH = GND, TJ = - 40 to 125°C 130 180 µA 1 µA mA Adjust pin current TJ = - 40 to 125°C (Note 1) Isc Short circuit current VI - VO = 5.5 V VIL Control input logic low OFF MODE, (Note 3),TJ = - 40 to 125°C VIH Control input logic high ON MODE, (Note 3), TJ = - 40 to 125°C IINH Control input current TJ = - 40 to 125°C, VINH = 13 V 5 eN Output noise voltage BP = 10 Hz to 100 kHz, IO = 100 mA 50 µVRMS 150 °C IADJ TSHDN Note: Thermal shutdown 2.2 A 0.8 2 V V 10 µA 1 Guaranteed by design. 2 Reference voltage is measured between output and GND pin, with ADJ PIN tied to VOUT. 3 Only for version with Inhibit function. Doc ID 9614 Rev 16 11/22 Typical characteristics LD29150XX, LD29150XXxx 6 Typical characteristics Figure 5. Output voltage vs. temperature Figure 6. Reference voltage vs. temperature Figure 7. Dropout voltage vs. temperature Figure 8. Dropout voltage vs. output current Figure 9. Quiescent current vs. output current (VI = 13 V) Figure 10. Quiescent current vs. output current (VI = 4.5 V) 12/22 Doc ID 9614 Rev 16 LD29150XX, LD29150XXxx Typical characteristics Figure 11. Quiescent current vs. supply voltage Figure 12. Quiescent current vs. temperature (IO = 10 mA) Figure 13. Quiescent current vs. temperature (IO = 1.5 A) Figure 14. Short circuit current vs. temperature Figure 15. Adjust pin current vs. temperature Figure 16. Supply voltage rejection vs. temperature Doc ID 9614 Rev 16 13/22 Typical characteristics LD29150XX, LD29150XXxx Figure 17. Output voltage vs. input voltage Figure 18. Stability vs. CO Figure 19. Line transient Figure 20. Load transient VI=3.5 to 5.5V, IO=10mA, VO=2.5V, CO=10µF VI=5V, IO=10mA to 1.5A, VO=2.5V, CO=10µF Figure 21. Start-up time 10 mA Figure 22. Start-up time 1.5 A CO=10µF, IO=10mA, VINH=2V, VO=5V, VI=7V CO=10µF, IO=1.5A, VINH=2V, VO=5V, VI=7V 14/22 Doc ID 9614 Rev 16 LD29150XX, LD29150XXxx 7 Package mechanical data 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. Doc ID 9614 Rev 16 15/22 Package mechanical data LD29150XX, LD29150XXxx DPAK mechanical data mm. inch. Dim. Min. A A1 A2 b b4 C C2 D D1 E E1 e e1 H L (L1) L2 L4 R V2 Typ. 2.2 0.9 0.03 0.64 5.2 0.45 0.48 6 Max. Min. 2.4 1.1 0.23 0.9 5.4 0.6 0.6 6.2 0.086 0.035 0.001 0.025 0.204 0.017 0.019 0.236 6.6 0.252 5.1 6.4 0.260 0.173 0.368 0.039 2.8 0.8 0.181 0.397 0.110 0.031 1 0.023 0.2 0° 0.094 0.043 0.009 0.035 0.212 0.023 0.023 0.244 0.185 0.090 4.6 10.1 0.6 Max. 0.200 4.7 2.28 4.4 9.35 1 Typ. 0.039 0.008 8° 0° 8° 0068772-F 16/22 Doc ID 9614 Rev 16 LD29150XX, LD29150XXxx Package mechanical data PPAK mechanical data mm. inch. Dim. Min. Typ. Max. Min. Typ. Max. A 2.2 2.4 0.086 0.094 A1 0.9 1.1 0.035 0.043 A2 0.03 0.23 0.001 0.009 B 0.4 0.6 0.015 0.023 B2 5.2 5.4 0.204 0.212 C 0.45 0.6 0.017 0.023 C2 0.48 0.6 0.019 0.023 D 6 6.2 0.236 D1 E 5.1 6.4 6.6 E1 4.7 e 1.27 G 4.9 0.244 0.201 0.252 0.260 0.185 0.050 5.25 0.193 0.206 G1 2.38 2.7 0.093 0.106 H 9.35 10.1 0.368 0.397 0.039 L2 0.8 L4 0.6 L5 1 L6 1 1 2.8 0.031 0.023 0.039 0.039 0.110 0078180-E Doc ID 9614 Rev 16 17/22 Package mechanical data LD29150XX, LD29150XXxx P2PAK mechanical data mm. inch. Dim. Min. A Typ. 4.30 Max. Min. 4.80 0.169 Typ. 0.188 Max. A1 2.40 2.80 0.094 0.110 A2 0.03 0.23 0.001 0.009 b 0.80 1.05 0.031 0.041 c 0.45 0.60 0.017 0.023 c2 1.17 1.37 0.046 0.053 D 8.95 9.35 0.352 0.368 10.40 0.393 D2 E 8 10.00 E1 0.315 8.5 0.409 0.334 0.409 e 3.20 3.60 0.126 0.142 e1 6.60 7.00 0.260 0.275 L 13.70 14.50 0.539 0.571 L2 1.25 1.40 0.049 0.055 L3 0.90 1.70 0.035 0.067 L5 1.55 2.40 0.061 0.094 8° 0° R V2 0.40 0° 0.016 8° 7226255/B 18/22 Doc ID 9614 Rev 16 LD29150XX, LD29150XXxx Package mechanical data Tape & reel DPAK-PPAK mechanical data mm. inch. Dim. Min. Typ. A Max. Min. Typ. 330 13.0 12.992 C 12.8 D 20.2 0.795 N 60 2.362 T 13.2 Max. 0.504 0.512 22.4 0.519 0.882 Ao 6.80 6.90 7.00 0.268 0.272 0.2.76 Bo 10.40 10.50 10.60 0.409 0.413 0.417 Ko 2.55 2.65 2.75 0.100 0.104 0.105 Po 3.9 4.0 4.1 0.153 0.157 0.161 P 7.9 8.0 8.1 0.311 0.315 0.319 Doc ID 9614 Rev 16 19/22 Package mechanical data LD29150XX, LD29150XXxx Tape & reel D2PAK-P2PAK-D2PAK/A-P2PAK/A mechanical data mm. inch. Dim. Min. Typ. A Min. Typ. 180 13.0 13.2 Max. 7.086 C 12.8 D 20.2 0.795 N 60 2.362 T 20/22 Max. 0.504 0.512 14.4 0.519 0.567 Ao 10.50 10.6 10.70 0.413 0.417 0.421 Bo 15.70 15.80 15.90 0.618 0.622 0.626 Ko 4.80 4.90 5.00 0.189 0.193 0.197 Po 3.9 4.0 4.1 0.153 0.157 0.161 P 11.9 12.0 12.1 0.468 0.472 0.476 Doc ID 9614 Rev 16 LD29150XX, LD29150XXxx Revision history 8 Revision history Table 9. Document revision history Date Revision Changes 17-Jun-2004 5 Add figures 20 and 21, PPAK, TO-220 and TO-220FP mechanical data updated. 19-Jul-2004 6 Remove Package TO-220FP4. 08-Nov-2004 7 Mistake Figure 7. 21-Mar-2005 8 Add VO and VINH on Table 2. 21-Oct-2005 9 Order Codes Has Been Updated. 17-Oct-2006 10 Add new package P²PAK. 13-Nov-2006 11 Add row TSHDN on tables of the electrical characteristics. 11-May-2007 12 Order codes updated. 15-Feb-2008 13 Added: Table 1 on page 1. 28-Jul-2009 14 Modified: Table 1 on page 1. 22-Sep-2010 15 Modified: Table 1 on page 1. 27-Oct-2010 16 Updated: DPAK mechanical data on page 16. 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