LD29150 1.5 A, very low drop voltage regulators Datasheet - production data Description The LD29150 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, Features series power supply for VCRs and TVs, computer systems and battery powered systems.  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 Table 1. Device summary Order codes Output voltages DPAK PPAK LD29150DT18R 1.8 V LD29150DT25R 2.5 V LD29150DT33R 3.3 V LD29150DT50R LD29150PT50R 5.0 V LD29150PTR ADJ August 2017 DocID9614 Rev 20 1/23 This is information on a product in full production. www.st.com

Contents LD29150 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 information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 7.1 DPAK package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 7.2 PPAK package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 8 Packaging information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 8.1 PPAK and DPAK packaging information . . . . . . . . . . . . . . . . . . . . . . . . . 20 9 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 2/23 DocID9614 Rev 20

LD29150 Diagram 1 Diagram Figure 1. Schematic diagram for adjustable version Figure 2. Schematic diagram for fixed version * Only for version with inhibit function. DocID9614 Rev 20 3/23 23

Pin configuration LD29150 2 Pin configuration Figure 3. Pin connections (top view) DPAK PPAK * Not connected for fixed version. 4/23 DocID9614 Rev 20

LD29150 Typical application 3 Typical application Figure 4. Application circuit V = V (1 + R /R ) O REF 1 2 * Only for version with inhibit function. DocID9614 Rev 20 5/23 23

Maximum ratings LD29150 4 Maximum ratings Table 2. Absolute maximum ratings Symbol Parameter Value Unit V DC input voltage 30 (1) V I V DC output voltage -0.3 to 20 V O V Inhibit input voltage -0.3 to 20 V INH I Output current Internally limited mA O P Power dissipation Internally limited mW D T Storage temperature range -55 to 150 °C STG T Operating junction temperature range -40 to 125 °C OP 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 DPAK PPAK Unit R Thermal resistance junction-ambient 100 100 °C/W thJA R Thermal resistance junction-case 8 8 °C/W thJC 6/23 DocID9614 Rev 20

LD29150 Electrical characteristics 5 Electrical characteristics I = 10 mA, T = 25 °C, V = 3.8 V, V = 2 V (Note3), C = 330 nF, C = 10 µF, unless O J I INH I O otherwise specified. Table 4. Electrical characteristics of LD29150#18 Symbol Parameter Test conditions Min. Typ. Max. Unit I = 10 mA to 1.5 A, V = 3 to 7.3 V 1.782 1.8 1.818 V Output voltage O I V O TJ = - 40 to 125 °C 1.764 1.836 V Load regulation I = 10 mA to 1.5 A 0.2 1.0 % O O V Line regulation V = 3 to 13 V 0.06 0.5 % O I f = 120 Hz, V = 3.81 V, I = 0.75 A SVR Supply voltage rejection I O 62 72 dB (Note1) I = 250 mA, T = - 40 to 125 °C (Note2) 0.1 O J V Dropout voltage I = 0.75 A, T = - 40 to 125 °C (Note2) 0.2 V DROP O J I = 1.5 A, T = - 40 to 125 °C (Note2) 0.4 0.7 O J I = 0.75 A, T = - 40 to 125 °C 15 40 O J mA I Quiescent current I = 1.5 A, T = - 40 to 125 °C 30 80 q O J V = 13 V, V = GND, T = - 40 to 125°C 130 180 µA I INH J I Short circuit current V - V = 5.5 V 2.2 A sc I O V Control input logic low OFF MODE, (Note3), T = - 40 to 125°C 0.8 V IL J V Control input logic high ON MODE, (Note3), T = - 40 to 125 °C 2 V IH J I Control input current T = - 40 to 125 °C, V = 13 V 5 10 µA INH J INH B = 10 Hz to 100 kHz, I = 100 mA eN Output noise voltage P O 72 µV (Note1) RMS T Thermal shutdown 150 °C SHDN Note: 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 V + 1 V applied to V. O I 3 Only for version with Inhibit function. DocID9614 Rev 20 7/23 23

Electrical characteristics LD29150 I = 10 mA, T = 25 °C, V = 4.5 V, V = 2 V (Note3), C = 330 nF, C = 10 µF, unless O J I INH I O otherwise specified. Table 5. Electrical characteristics of LD29150#25 Symbol Parameter Test conditions Min. Typ. Max. Unit I = 10 mA to 1.5 A, V = 3.5 to 8 V 2.475 2.5 2.525 V Output voltage O I V O TJ = - 40 to 125 °C 2.45 2.55 V Load regulation I = 10 mA to 1.5 A 0.2 1.0 % O O V Line regulation V = 3.5 to 13 V 0.06 0.5 % O I f = 120 Hz, V = 4.51 V, I = 0.75 A SVR Supply voltage rejection I O 55 70 dB (Note1) I = 250 mA, T = - 40 to 125 °C (Note2) 0.1 O J V Dropout voltage I = 0.75 A, T = - 40 to 125 °C (Note2) 0.2 V DROP O J I = 1.5 A, T = - 40 to 125 °C (Note2) 0.4 0.7 O J I = 0.75 A, T = - 40 to 125 °C 15 40 O J mA I Quiescent current I = 1.5 A, T = - 40 to 125 °C 30 80 q O J V = 13 V, V = GND, T = - 40 to 125°C 130 180 µA I INH J I Short circuit current V - V = 5.5 V 2.2 A sc I O V Control input logic low OFF MODE, (Note3), T = - 40 to 125 °C 0.8 V IL J V Control input logic high ON MODE, (Note3), T = - 40 to 125 °C 2 V IH J I Control input current T = - 40 to 125 °C, V = 13 V 5 10 µA INH J INH B = 10 Hz to 100 kHz, I = 100 mA eN Output noise voltage P O 100 µV (Note1) RMS T Thermal shutdown 150 °C SHDN Note: 1 Guaranteed by design. 2 Dropout voltage is defined as the input-to-output differential when the output voltage drops to 9 9% of its nominal value with V + 1 V applied to V. O I 3 Only for version with Inhibit function. 8/23 DocID9614 Rev 20

LD29150 Electrical characteristics I = 10 mA, T = 25 °C, V = 5.3 V, V = 2 V (Note3), C = 330 nF, C = 10 µF, unless O J I INH I O otherwise specified. Table 6. Electrical characteristics of LD29150#33 Symbol Parameter Test conditions Min. Typ. Max. Unit I = 10 mA to 1.5 A, V = 4.3 to 8.8 V 3.267 3.3 3.333 V Output voltage O I V O TJ = - 40 to 125 °C 3.234 3.366 V Load regulation I = 10 mA to 1.5 A 0.2 1.0 % O O V Line regulation V = 4.3 to 13 V 0.06 0.5 % O I f = 120 Hz, V = 5.31 V, I = 0.75 A SVR Supply voltage rejection I O 52 67 dB (Note1) I = 250 mA, T = - 40 to 125 °C (Note2) 0.1 O J V Dropout voltage I = 0.75 A, T = - 40 to 125 °C (Note2) 0.2 V DROP O J I = 1.5 A, T = - 40 to 125 °C (Note2) 0.4 0.7 O J I = 0.75 A, T = - 40 to 125 °C 15 40 O J mA I Quiescent current I = 1.5 A, T = - 40 to 125 °C 30 80 q O J V = 13 V, V = GND, T = - 40 to 125°C 130 180 µA I INH J I Short circuit current V - V = 5.5 V 2.2 A sc I O V Control input logic low OFF MODE, (Note3), T = - 40 to 125 °C 0.8 V IL J V Control input logic high ON MODE, (Note3), T = - 40 to 125 °C 2 V IH J I Control input current T = - 40 to 125 °C, V = 13 V 5 10 µA INH J INH B = 10 Hz to 100 kHz, I = 100 mA eN Output noise voltage P O 132 µV (Note1) RMS T Thermal shutdown 150 °C SHDN Note: 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 V + 1 V applied to V. O I 3 Only for version with Inhibit function. DocID9614 Rev 20 9/23 23

Electrical characteristics LD29150 I = 10 mA, T = 25 °C, V = 7 V, V = 2 V (Note3), C = 330 nF, C = 10 µF, unless O J I INH I O otherwise specified. Table 7. Electrical characteristics of LD29150#50 Symbol Parameter Test conditions Min. Typ. Max. Unit I = 10 mA to 1.5 A, V = 6 to 10.5 V 4.95 5 5.05 V Output voltage O I V O TJ = - 40 to 125 °C 4.9 5.1 V Load regulation I = 10 mA to 1.5 A 0.2 1.0 % O O V Line regulation V = 6 to 13 V 0.06 0.5 % O I f = 120 Hz, V = 71 V, I = 0.75 A SVR Supply voltage rejection I O 49 64 dB (Note1) I = 250 mA, T = - 40 to 125 °C (Note2) 0.1 O J V Dropout voltage I = 0.75 A, T = - 40 to 125 °C (Note2) 0.2 V DROP O J I = 1.5 A, T = - 40 to 125 °C (Note2) 0.4 0.7 O J I = 0.75 A, T = - 40 to 125 °C 15 40 O J mA I Quiescent current I = 1.5 A, T = - 40 to 125 °C 30 80 q O J V = 13 V, V = GND, T = - 40 to 125°C 130 180 µA I INH J I Short circuit current V - V = 5.5 V 2.2 A sc I O V Control input logic low OFF MODE, (Note3), T = - 40 to 125 °C 0.8 V IL J V Control input logic high ON MODE, (Note3), T = - 40 to 125 °C 2 V IH J I Control input current T = - 40 to 125 °C, V = 13 V 5 10 µA INH J INH B = 10 Hz to 100 kHz, I = 100 mA eN Output noise voltage P O 200 µV (Note1) RMS T Thermal shutdown 150 °C SHDN Note: 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 V + 1 V applied to V. O I 3 Only for version with Inhibit function. 10/23 DocID9614 Rev 20

LD29150 Electrical characteristics I = 10 mA, T = 25 °C, V = 3.23 V, V = 2 V (Note3), C = 330 nF, C = 10 µF adjust pin O J I INH I O tied to output pin. Table 8. Electrical characteristics of LD29150#ADJ Symbol Parameter Test conditions Min. Typ. Max. Unit Minimum operating input V I = 10 mA to 1.5 A, T = - 40 to 125 °C 2.5 V I voltage O J V Load regulation I = 10 mA to 1.5 A 0.2 1.0 % O O V Line regulation V = 2.5 V to 13 V, I = 10 mA 0.06 0.5 % O I O I = 10 mA to 1.5 A, V = 2.5 to 4.5 V -1% 1.23 +1% V Reference voltage O I V REF TJ = - 40 to 125 °C (Note2) -2% +2% f = 120 Hz, V = 3.231 V, I = 0.75 A SVR Supply voltage rejection I O 45 75 dB (Note1) I = 0.75 A, T = - 40 to 125 °C 15 40 O J mA I Quiescent current I = 1.5 A, T = - 40 to 125 °C 30 80 q O J V = 13 V, V = GND, T = - 40 to 125°C 130 180 µA I INH J I Adjust pin current T = - 40 to 125 °C (Note1) 1 µA ADJ J I Short circuit current V - V = 5.5 V 2.2 A sc I O V Control input logic low OFF MODE, (Note3),T = - 40 to 125 °C 0.8 V IL J V Control input logic high ON MODE, (Note3), T = - 40 to 125 °C 2 V IH J I Control input current T = - 40 to 125 °C, V = 13 V 5 10 µA INH J INH B = 10 Hz to 100 kHz, I = 100 mA eN Output noise voltage P O 50 µV (Note1) RMS T Thermal shutdown 150 °C SHDN Note: 1 Guaranteed by design. 2 Reference voltage is measured between output and GND pin, with ADJ PIN tied to V . OUT 3 Only for version with Inhibit function. DocID9614 Rev 20 11/23 23

Typical characteristics LD29150 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 Figure 10. Quiescent current vs. output current (V = 13 V) (V = 4.5 V) I I 12/23 DocID9614 Rev 20

LD29150 Typical characteristics Figure 11. Quiescent current vs. supply voltage Figure 12. Quiescent current vs. temperature (I = 10 mA) O Figure 13. Quiescent current vs. temperature Figure 14. Short circuit current vs. temperature (I = 1.5 A) O Figure 15. Adjust pin current vs. temperature Figure 16. Supply voltage rejection vs. temperature DocID9614 Rev 20 13/23 23

Typical characteristics LD29150 Figure 17. Output voltage vs. input voltage Figure 18. Stability vs. C O Figure 19. Line transient Figure 20. Load transient V=3.5 to 5.5V, I =10mA, V =2.5V, C =10µF V=5V, I =10mA to 1.5A, V =2.5V, C =10µF I O O O I O O O 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 14/23 DocID9614 Rev 20

LD29150 Package information 7 Package information 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. 7.1 DPAK package information Table 9. DPAK mechanical data mm Dim. Min. Typ. Max. 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 5.10 E 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 0.20 V2 0° 8° DocID9614 Rev 20 15/23 23

Package information LD29150 Figure 23. DPAK outline 0006086787727_2K_K 16/23 DocID9614 Rev 20

LD29150 Package information Figure 24. DPAK footprint (a) FFoooottpprriinntt__RREEVV__KK a. All dimensions are in millimeters DocID9614 Rev 20 17/23 23

Package information LD29150 7.2 PPAK package information Table 10. PPAK mechanical data mm Dim. Min. Typ. Max. A 2.2 2.4 A1 0.9 1.1 A2 0.03 0.23 B 0.4 0.6 B2 5.2 5.4 C 0.45 0.6 C2 0.48 0.6 D 6 6.2 D1 5.1 E 6.4 6.6 E1 4.7 e 1.27 G 4.9 5.25 G1 2.38 2.7 H 9.35 10.1 L2 0.8 1 L4 0.6 1 L5 1 L6 2.8 R 0.20 V2 0° 8° 18/23 DocID9614 Rev 20

LD29150 Package information Figure 25. PPAK outline 0078180_F DocID9614 Rev 20 19/23 23

Packaging information LD29150 8 Packaging information 8.1 PPAK and DPAK packaging information Table 11. PPAK and DPAK tape and reel mechanical data Tape Reel mm mm Dim. Dim. Min. Max. Min. Max. A0 6.8 7 A 330 B0 10.4 10.6 B 1.5 B1 12.1 C 12.8 13.2 D 1.5 1.6 D 20.2 D1 1.5 G 16.4 18.4 E 1.65 1.85 N 50 F 7.4 7.6 T 22.4 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 20/23 DocID9614 Rev 20

LD29150 Packaging information Figure 26. Tape for PPAK and DPAK 10 pitches cumulative tolerance on tape +/- 0.2 mm Top cover P0 D P2 T tape E F K0 W B1 B0 For machine ref. only A0 P1 D1 including draft and radii concentric around B0 User direction of feed R Bending radius User direction of feed AM08852v1 Figure 27. Reel for PPAK and DPAK T REEL DIMENSIONS 40mm min. Access hole At slot location B D C N A Full radius Tape slot G measured at hub in core for tape start 25 mm min. width AM08851v2 DocID9614 Rev 20 21/23 23

Revision history LD29150 9 Revision history Table 12. Document revision history Date Revision Changes Add figures 20 and 21, PPAK, TO-220 and TO-220FP mechanical 17-Jun-2004 5 data updated. 19-Jul-2004 6 Remove Package TO-220FP4. 08-Nov-2004 7 Mistake Figure 7. 21-Mar-2005 8 Add V and V on Table 2. O INH 21-Oct-2005 9 Order Codes Has Been Updated. 17-Oct-2006 10 Add new package P²PAK. 13-Nov-2006 11 Add row T on tables of the electrical characteristics. SHDN 11-May-2007 12 Order codes updated. 15-Feb-2008 13 Added: Table1 on page1. 28-Jul-2009 14 Modified: Table1 on page1. 22-Sep-2010 15 Modified: Table1 on page1. 27-Oct-2010 16 Updated: DPAK mechanical data on page 25. Modified: pin connections for PPAK, P²PAK and DPAK Figure3 on 07-May-2012 17 page4. 06-Sep-2012 18 Updated: figure for P²PAK in cover page. Changed the LD29150XX to LD29150. Updated: Description in cover page. Updated Section5: Electrical characteristics and Section7: Package 30-Oct-2013 19 mechanical data. Added Section8: Packaging mechanical data. Minor text changes. 30-Aug-2017 20 Removed P²PAK package option (order code LD29150P2T33R) 22/23 DocID9614 Rev 20

LD29150 IMPORTANT NOTICE – PLEASE READ CAREFULLY STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and improvements to ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST products before placing orders. ST products are sold pursuant to ST’s terms and conditions of sale in place at the time of order acknowledgement. Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of Purchasers’ products. No license, express or implied, to any intellectual property right is granted by ST herein. Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product. ST and the ST logo are trademarks of ST. All other product or service names are the property of their respective owners. Information in this document supersedes and replaces information previously supplied in any prior versions of this document. © 2017 STMicroelectronics – All rights reserved DocID9614 Rev 20 23/23 23

Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: S TMicroelectronics: LD29150PTR LD29150DT33R LD29150DT50R LD29150DT18R LD29150DT25R LD29150PT50R LD29150P2T33R