LEXX Very low-dropout voltage regulator with inhibit function Datasheet - production data Description The LEXX is a very low-dropout voltage regulator available in SO-8, TO-92 packages and over a wide range of output voltages. The very low-dropout voltage (0.2 V) and low quiescent current make it particularly suitable for low-noise, low-power applications and in battery- powered systems. This device is pin-to-pin compatible with the L78L series. Furthermore, in the 8-pin configuration Features (SO-8), it uses a shutdown logic control (pin 5, TTL compatible). This means that when the  Very low-dropout voltage (0.2 V typ.) device is used as a local regulator, a part of the  Very low quiescent current (typ. 50 µA in board can be put in standby, decreasing the total OFF mode, 0.5 mA in ON mode, no load) power consumption. In the three-terminal  Output current up to 100 mA configuration (TO-92), the device is always in  Output voltages: 3 V, 3.3 V, 4.5 V, 5 V, 8 V on-state. It requires a 2.2 µF capacitor for  Internal current and thermal limit stability, reducing the component size and cost.  Small 2.2 µF capacitor for stability  Available in ±1% (A) or ±2% (C) selection at 25 °C  Supply voltage rejection: 80 dB (typ.)  Temperature range: -40 to 125 °C Table 1: Device summary Order code Output voltage (V) SO-8 TO-92 (Ammopack) TO-92 (tape and reel) LE30CD-TR 3 LE33CD-TR LE33CZ-AP LE33CZ-TR 3.3 LE45CD-TR 4.5 LE50ABD-TR LE33ABZ-AP 5 LE50CD-TR 5 LE80CD-TR 8 May 2017 DocID2573 Rev 15 1/24 This is information on a product in full production. www.st.com

Contents LEXX Contents 1 Diagram ............................................................................................ 3 2 Pin configuration ............................................................................. 4 3 Maximum ratings ............................................................................. 5 4 Electrical characteristics ................................................................ 6 5 Typical performance characteristics ........................................... 13 6 Package information ..................................................................... 16 6.1 SO-8 package information .............................................................. 16 6.2 SO-8 packing information ................................................................ 18 6.3 TO-92 packing information .............................................................. 19 6.4 TO-92 Ammopak packing information ............................................. 21 7 Revision history ............................................................................ 23 2/24 DocID2573 Rev 15

LEXX Diagram 1 Diagram Figure 1: Block diagram DocID2573 Rev 15 3/24

Pin configuration LEXX 2 Pin configuration Figure 2: Pin connections (SO-8 top view, TO-92 bottom view) 4/24 DocID2573 Rev 15

LEXX Maximum ratings 3 Maximum ratings Table 2: Absolute maximum ratings Symbol Parameter Value Unit VI DC input voltage 20 V IO Output current Internally limited (1) PTOT Power dissipation Internally limited TSTG Storage temperature range -65 to 150 °C TOP Operating junction temperature range -40 to 125 °C Notes: (1)Our SO-8 package, used for voltage regulators, is modified internally to have pins 2, 3, 6 and 7 electrically fused to the die attach pad. This frame decreases the total thermal resistance of the package and increases its ability to dissipate power when an appropriate area of copper on the printed circuit board is available for heatsinking. The external dimensions are the same as SO-8 standard. Table 3: Thermal data Symbol Parameter SO-8 TO-92 Unit RthJC Thermal resistance junction-case 20 °C/W RthJA Thermal resistance junction-ambient 55 200 °C/W Figure 3: Test circuit If the INHIBIT pin is left floating, the regulator is in ON mode. However, when the inhibit function is not used, it should be grounded to avoid any noise. DocID2573 Rev 15 5/24

Electrical characteristics LEXX 4 Electrical characteristics Refer to test circuits, T = 25 °C, C = 0.1 µF, C = 2.2 µF unless otherwise specified. J I O Table 4: LE30AB electrical characteristics Symbol Parameter Test condition Min. Typ. Max. Unit IO = 10 mA 2.970 3 3.030 V = 5 V I VO Output voltage IO = 10 mA V VI = 5 V 2.940 3.060 T = -25 to 85 °C J VI Operating input voltage IO = 100 mA 18 V IO Output current limit 150 mA VI = 3.7 to 18 V ∆VO Line regulation I = 0.5 mA 3 15 mV O VI = 4 V ∆VO Load regulation I = 0.5 to 100 mA 3 15 mV O VI = 4 to 18 V 0.5 1 IO = 0 mA ON mode mA Id Quiescent current VI = 4 to 18 V 1.5 3 IO = 100 mA VI = 6 V OFF mode 50 100 µA f = 120 Hz 81 IO = 5 mA SVR Supply voltage rejection f = 1 kHz 76 dB VI = 5 ± 1 V f = 10 kHz 60 B = 10 Hz to 100 kHz eN Output noise voltage 50 µV IO = 100 mA 0.2 0.4 Vd Dropout voltage IO = 100 mA V 0.5 T = -40 to 125 °C J VIL Control input logic low TJ = -40 to 125 °C 0.8 V VIH Control input logic high TJ = -40 to 125 °C 2 V VI = 6 V II Control input current V = 6 V 10 µA C ESR = 0.1 to 10 Ω CO Output bypass capacitance I = 0 to 100 mA 2 10 µF O 6/24 DocID2573 Rev 15

LEXX Electrical characteristics Refer to test circuits, T = 25 °C, C = 0.1 µF, C = 2.2 µF unless otherwise specified. J I O Table 5: LE30C electrical characteristics Symbol Parameter Test condition Min. Typ. Max. Unit IO = 10 mA 2.940 3 3.060 V = 5 V I VO Output voltage IO = 10 mA V VI = 5 V 2.880 3.120 T = -25 to 85 °C J VI Operating input voltage IO = 100 mA 18 V IO Output current limit 150 mA VI = 3.7 to 18 V ∆VO Line regulation I = 0.5 mA 3 20 mV O VI = 4 V ∆VO Load regulation I = 0.5 to 100 mA 3 25 mV O VI = 4 to 18 V 0.5 1 IO = 0 mA ON mode mA Id Quiescent current VI = 4 to 18 V 1.5 3 IO = 100 mA VI = 6 V OFF mode 50 100 µA f = 120 Hz 81 IO = 5 mA SVR Supply voltage rejection f = 1 kHz 76 dB VI = 5 ± 1 V f = 10 kHz 60 B = 10 Hz to 100 kHz eN Output noise voltage 50 µV IO = 100 mA 0.2 0.4 Vd Dropout voltage IO = 100 mA V 0.5 T = -40 to 125 °C J VIL Control input logic low TJ = -40 to 125 °C 0.8 V VIH Control input logic high TJ = -40 to 125 °C 2 V VI = 6 V II Control input current V = 6 V 10 µA C ESR = 0.1 to 10 Ω CO Output bypass capacitance I = 0 to 100 mA 2 10 µF O DocID2573 Rev 15 7/24

Electrical characteristics LEXX Refer to test circuits, T = 25 °C, C = 0.1 µF, C = 2.2 µF unless otherwise specified. J I O Table 6: LE33C electrical characteristics Symbol Parameter Test condition Min. Typ. Max. Unit IO = 10 mA 3.234 3.3 3.366 V = 5.3 V I VO Output voltage IO = 10 mA V VI = 5.3 V 3.168 3.432 T = -25 to 85 °C J VI Operating input voltage IO = 100 mA 18 V IO Output current limit 150 mA VI = 4 to 18 V ∆VO Line regulation I = 0.5 mA 3 20 mV O VI = 4.3 V ∆VO Load regulation I = 0.5 to 100 mA 3 25 mV O VI = 4.3 to 18 V 0.5 1 IO = 0 mA ON mode mA Id Quiescent current VI = 4.3 to 18 V 1.5 3 IO = 100 mA VI = 6 V OFF mode 50 100 µA f = 120 Hz 80 IO = 5 mA SVR Supply voltage rejection f = 1 kHz 75 dB VI = 5.3 ± 1 V f = 10 kHz 60 eN Output noise voltage B = 10 Hz to 100 kHz 50 µV IO = 100 mA 0.2 0.4 Vd Dropout voltage IO = 100 mA V 0.5 T = -40 to 125 °C J VIL Control input logic low TJ = -40 to 125 °C 0.8 V VIH Control input logic high TJ = -40 to 125 °C 2 V VI = 6 V II Control input current V = 6 V 10 µA C ESR = 0.1 to 10 Ω CO Output bypass capacitance I = 0 to 100 mA 2 10 µF O 8/24 DocID2573 Rev 15

LEXX Electrical characteristics Refer to test circuits, T = 25 °C, C = 0.1 µF, C = 2.2 µF unless otherwise specified. J I O Table 7: LE45C electrical characteristics Symbol Parameter Test condition Min. Typ. Max. Unit IO = 10 mA 4.41 4.5 4.59 V = 6.5 V I VO Output voltage IO = 10 mA V VI = 6.5 V 4.32 4.68 T = -25 to 85 °C J VI Operating input voltage IO = 100 mA 18 V IO Output current limit 150 mA VI = 5.2 to 18 V ∆VO Line regulation I = 0.5 mA 4 30 mV O VI = 5.5 V ∆VO Load regulation I = 0.5 to 100 mA 3 25 mV O VI = 5.5 to 18 V 0.5 1 IO = 0 mA ON mode mA Id Quiescent current VI = 5.5 to 18 V 1.5 3 IO = 100 mA VI = 6 V OFF mode 50 100 µA f = 120 Hz 77 IO = 5 mA SVR Supply voltage rejection f = 1 kHz 72 dB VI = 6.5 ± 1 V f = 10 kHz 60 eN Output noise voltage B = 10 Hz to 100 kHz 50 µV IO = 100 mA 0.2 0.4 Vd Dropout voltage IO = 100 mA V 0.5 TJ = -40 to 125 °C VIL Control input logic low TJ = -40 to 125 °C 0.8 V VIH Control input logic high TJ = -40 to 125 °C 2 V VI = 6 V II Control input current V = 6 V 10 µA C ESR = 0.1 to 10 Ω CO Output bypass capacitance I = 0 to 100 mA 2 10 µF O DocID2573 Rev 15 9/24

Electrical characteristics LEXX Refer to test circuits, T = 25 °C, C = 0.1 µF, C = 2.2 µF unless otherwise specified. J I O Table 8: LE50AB electrical characteristics Symbol Parameter Test condition Min. Typ. Max. Unit IO = 10 mA 4.95 5 5.05 V = 7 V I VO Output voltage IO = 10 mA V VI = 7 V 4.9 5.1 T = -25 to 85 °C J VI Operating input voltage IO = 100 mA 18 V IO Output current limit 150 350 425 mA VI = 5.7 to 18 V ∆VO Line regulation I = 0.5 mA 4 20 mV O VI = 6 V ∆VO Load regulation I = 0.5 to 100 mA 3 15 mV O VI = 6 to 18 V 0.5 1 IO = 0 mA ON mode mA Id Quiescent current VI = 6 to 18 V 1.5 3 IO = 100 mA VI = 6 V OFF mode 50 100 µA f = 120 Hz 76 IO = 5 mA SVR Supply voltage rejection f = 1 kHz 71 dB VI = 7 ± 1 V f = 10 kHz 60 B = 10 Hz to 100 kHz eN Output noise voltage 50 µV IO = 100 mA 0.2 0.4 Vd Dropout voltage IO = 100 mA V 0.5 TJ = -40 to 125 °C VIL Control input logic low TJ = -40 to 125 °C 0.8 V VIH Control input logic high TJ = -40 to 125 °C 2 V VI = 6 V II Control input current V = 6 V 10 µA C ESR = 0.1 to 10 Ω CO Output bypass capacitance I = 0 to 100 mA 2 10 µF O 10/24 DocID2573 Rev 15

LEXX Electrical characteristics Refer to test circuits, T = 25 °C, C = 0.1 µF, C = 2.2 µF unless otherwise specified. J I O Table 9: LE50C electrical characteristics Symbol Parameter Test condition Min. Typ. Max. Unit IO = 10 mA 4.9 5 5.1 V = 7 V I VO Output voltage IO = 10 mA V VI = 7 V 4.8 5.2 T = -25 to 85 °C J VI Operating input voltage IO = 100 mA 18 V IO Output current limit 150 350 425 mA VI = 5.7 to 18 V ∆VO Line regulation I = 0.5 mA 4 30 mV O VI = 6 V ∆VO Load regulation I = 0.5 to 100 mA 3 25 mV O VI = 6 to 18 V 0.5 1 IO = 0 mA ON mode mA Id Quiescent current VI = 6 to 18 V 1.5 3 IO = 100 mA VI = 6 V OFF mode 50 100 µA f = 120 Hz 76 IO = 5 mA SVR Supply voltage rejection f = 1 kHz 71 dB VI = 7 ± 1 V f = 10 kHz 60 B = 10 Hz to 100 kHz eN Output noise voltage 50 µV IO = 100 mA 0.2 0.4 Vd Dropout voltage IO = 100 mA V 0.5 T = -40 to 125 °C J VIL Control input logic low TJ = -40 to 125 °C 0.8 V VIH Control input logic high TJ = -40 to 125 °C 2 V VI = 6 V II Control input current V = 6 V 10 µA C ESR = 0.1 to 10 Ω CO Output bypass capacitance I = 0 to 100 mA 2 10 µF O DocID2573 Rev 15 11/24

Electrical characteristics LEXX Refer to test circuits, T = 25 °C, C = 0.1 µF, C = 2.2 µF unless otherwise specified. J I O Table 10: LE80C electrical characteristics Symbol Parameter Test condition Min. Typ. Max. Unit IO = 10 mA 7.84 8 8.16 V = 10 V I VO Output voltage IO = 10 mA V VI = 10 V 7.68 8.32 T = -25 to 85 °C J VI Operating input voltage IO = 100 mA 18 V IO Output current limit 150 mA VI = 8.7 to 18 V ∆VO Line regulation I = 0.5 mA 5 35 mV O VI = 9 V ∆VO Load regulation I = 0.5 to 100 mA 3 25 mV O VI = 9 to 18 V 0.7 1.6 IO = 0 mA ON mode mA Id Quiescent current VI = 9 to 18 V 1.7 3.6 IO = 100 mA VI = 9 V OFF mode 70 140 µA f = 120 Hz 72 IO = 5 mA SVR Supply voltage rejection f = 1 kHz 66 dB VI = 10 ± 1 V f = 10 kHz 57 eN Output noise voltage B = 10 Hz to 100 kHz 50 µV IO = 100 mA 0.2 0.4 Vd Dropout voltage IO = 100 mA V 0.5 T = -40 to 125 °C J VIL Control input logic low TJ = -40 to 125 °C 0.8 V VIH Control input logic high TJ = -40 to 125 °C 2 V VI = 9 V II Control input current V = 6 V 10 µA C ESR = 0.1 to 10 Ω CO Output bypass capacitance I = 0 to 100 mA 2 10 µF O 12/24 DocID2573 Rev 15

LEXX Typical performance characteristics 5 Typical performance characteristics Unless otherwise specified, V = 3.3 V. O(NOM) Figure 4: Dropout voltage vs output current Figure 5: Dropout voltage vs temperature Figure 6: Shutdown current vs temperature Figure 7: Supply current vs input voltage DocID2573 Rev 15 13/24

Typical performance characteristics LEXX Figure 8: Short-circuit current vs dropout voltage Figure 9: SVR vs frequency Figure 10: Logic-controlled precision 3.3/5.0 V selectable output 14/24 DocID2573 Rev 15

LEXX Typical performance characteristics Figure 11: Sequential multi-output supply Figure 12: Basic inhibit functions DocID2573 Rev 15 15/24

Package information LEXX 6 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. 6.1 SO-8 package information Figure 13: SO-8 package outline 16/24 DocID2573 Rev 15

LEXX Package information Table 11: SO-8 mechanical data mm Dim. Min. Typ. Max. A 1.75 A1 0.10 0.25 A2 1.25 b 0.31 0.51 b1 0.28 0.48 c 0.10 0.25 c1 0.10 0.23 D 4.80 4.90 5.00 E 5.80 6.00 6.20 E1 3.80 3.90 4.00 e 1.27 h 0.25 0.50 L 0.40 1.27 L1 1.04 L2 0.25 k 0° 8° ccc 0.10 Figure 14: SO-8 recommended footprint (dimensions are in mm) DocID2573 Rev 15 17/24

Package information LEXX 6.2 SO-8 packing information Figure 15: SO-8 tape and reel dimensions Table 12: SO-8 tape and reel mechanical data mm Dim. Min. Typ. Max. A 330 C 12.8 13.2 D 20.2 N 60 T 22.4 - Ao 8.1 8.5 Bo 5.5 5.9 Ko 2.1 2.3 Po 3.9 4.1 P 7.9 8.1 18/24 DocID2573 Rev 15

LEXX Package information 6.3 TO-92 packing information Figure 16: TO-92 tape and reel outline DocID2573 Rev 15 19/24

Package information LEXX Table 13: TO-92 tape and reel mechanical data mm Dim. Min. Typ. Max. A1 4.80 T 3.80 T1 1.60 T2 2.30 d 0.45 0.47 0.48 P0 12.50 12.70 12.90 P2 5.65 6.35 7.05 F1, F2 2.40 2.50 2.94 F3 4.98 5.08 5.48 delta H -2.00 2.00 W 17.50 18.00 19.00 W0 5.5 6.00 6.5 W1 8.50 9.00 9.25 W2 0.50 H 18.50 21 H3 0.5 1 2 H0 15.50 16.00 18.8 H1 25.0 27.0 D0 3.80 4.00 4.20 t 0.90 L 11.00 I1 3.00 delta P -1.00 1.00 Ø1 352 355 358 Ø2 28 30 32 u 44 47 50 20/24 DocID2573 Rev 15

LEXX Package information 6.4 TO-92 Ammopak packing information Figure 17: TO-92 Ammopak tape and reel outline DocID2573 Rev 15 21/24

Package information LEXX Table 14: TO-92 Ammopak tape and reel mechanical data mm Dim. Min. Typ. Max. A1 4.80 T 3.80 T1 1.60 T2 2.30 d 0.45 0.47 0.48 P0 12.50 12.70 12.90 P2 5.65 6.35 7.05 F1, F2 2.40 2.50 2.94 F3 4.98 5.08 5.48 delta H -2.00 2.00 W 17.50 18.00 19.00 W0 5.5 6.00 6.5 W1 8.50 9.00 9.25 W2 0.50 H 18.50 21 H3 0.5 1 2 H0 15.50 16.00 18.8 H1 25.0 27.0 D0 3.80 4.00 4.20 t 0.90 L 11.00 I1 3.00 delta P -1.00 1.00 22/24 DocID2573 Rev 15

LEXX Revision history 7 Revision history Table 15: Document revision history Date Revision Changes 09-Jul-2004 6 IO typ. and max. are changed in tab. 24 and 25 - pag. 14. 16-Mar-2005 7 Add Tape & Reel for TO-92 - Note on Table 3. 12-Feb-2007 8 Change value TOP on Table 2. 26-Jul-2007 9 Add Table 1 in cover page. 29-Nov-2007 10 Modified: Table 25. 12-Feb-2008 11 Modified: Table 25. 10-Jul-2008 12 Modified: Table 1 and Table 25. Updated: Table 1 on page 1. Changed: TA in TJ test conditions from table 22-May-2012 13 4 to table 10. Changed the part numbers LExxAB and LExxC to LEXX. Updated the title. Added the ammopack package to the figure in cover page. Updated 14-Mar-2014 14 the Table 1: Device summary. Updated the Description. Updated Figure 3. Changed the title of Figure 6. Updated mechanical data. Updated Table 1: "Device summary" and Section 6: "Package 03-May-2017 15 information". Minor text changes. DocID2573 Rev 15 23/24

LEXX 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 24/24 DocID2573 Rev 15

Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: S TMicroelectronics: LE33CZ LE30CD-TR LE50CD-TR LE50ABD-TR LE50ABZ-AP LE33CZ-TR LE33CZ-AP LE80CD-TR LE45CD- TR LE33CD-TR LE30ABZ-TR