L5150BN 5 V low dropout voltage regulator Features Max DC supply voltage VS 40 V Max output voltage tolerance Vo 2% Max dropout voltage Vdp 500 mV Output current I0 150 mA Quiescent current Iq 50 A(1) '!0'03 SOT-223 1. Typical value. Description Operating DC supply voltage range 5.6 V to 40 V Low dropout voltage Low quiescent current Precison output voltage 5 V 2% Very wide stability range with low value output capacitor Thermal shutdown and short-circuit protection Wide temperature range (Tj = -40 C to 150 C) Table 1. L5150BN is a low dropout linear 5 V regulator particularly suitable for automotive applications. High output voltage accurancy (2%) is kept over wide temperature range line and load variation. Its sophisticated design allows to have extremely low quiescent current. The maximum input voltage is 40 V. The regulator output current is internally limited and the device is protected against short-circuit, overload and overtemperature conditions. In addition, only low-value ceramic capacitor on output is required for stability. Device summary Order codes Package SOT-223 February 2012 Tube Tape & reel L5150BN L5150BNTR Doc ID 15541 Rev 8 1/20 www.st.com 1 Contents L5150BN Contents 1 Block diagram and pins description . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3 2.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.4 Electrical characteristics curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.5 Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Package and PCB thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 3.1 4 5 2/20 SOT-223 thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Package and packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 4.1 ECOPACK(R) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 4.2 SOT-223 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 4.3 SOT-223 packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Doc ID 15541 Rev 8 L5150BN List of tables List of tables Table 1. Table 2. Table 3. Table 4. Table 5. Table 6. Table 7. Table 8. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Pins description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 SOT-223 thermal parameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 SOT-223 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Doc ID 15541 Rev 8 3/20 List of figures L5150BN List of figures Figure 1. Figure 2. Figure 3. Figure 4. Figure 5. Figure 6. Figure 7. Figure 8. Figure 9. Figure 10. Figure 11. Figure 12. Figure 13. Figure 14. Figure 15. Figure 16. Figure 17. Figure 18. Figure 19. Figure 20. Figure 21. Figure 22. 4/20 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Output voltage vs. Tj . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Output voltage vs. VS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Drop voltage vs. output current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Current consumption vs. output current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Current consumption vs. output current (at light load condition). . . . . . . . . . . . . . . . . . . . . . 8 Current consumption vs. input voltage (Io = 0.1 mA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Current consumption vs. input voltage (Io = 75 mA). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Current limitation vs. Tj . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Current limitation vs. input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Short-circuit current vs. Tj . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Short-circuit current vs. input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 PSRR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Application schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Stability region . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Maximum load variation response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 SOT-223 PC board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Rthj-amb vs. PCB copper area in open box free air condition . . . . . . . . . . . . . . . . . . . . . . 12 SOT-223 thermal impedance junction ambient single pulse . . . . . . . . . . . . . . . . . . . . . . . 13 Thermal fitting model of Vreg in SOT-223 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 SOT-223 package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 SOT-223 tape and reel shipment (suffix "TR") . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Doc ID 15541 Rev 8 L5150BN 1 Block diagram and pins description Block diagram and pins description Figure 1. Block diagram 9R 9V 67$5783 3RZHU 'ULYHU 9 9ROWDJH 5HIHUHQFH *1' 7KHUPDO 6KXWGRZQ &XUUHQW /LPLWHU *$3*36 Table 2. Pins description(1) N Pin name 1 VS 2 GND 3 Vo Function Supply voltage, block directly to GND on the IC with a capacitor. Ground reference 5 V regulated output. Block to GND with a ceramic capacitor (C0 > 220 nF for regulator stability) 1. For the pins configuration see outlines at page 1. Doc ID 15541 Rev 8 5/20 Electrical specifications L5150BN 2 Electrical specifications 2.1 Absolute maximum ratings Stressing the device above the rating listed in the Table 3: Absolute maximum ratings may cause permanent damage to the device. These are stress ratings only and operation of the device at these or any other conditions above those indicated in the operating sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Refer also to the STMicroelectronics SURE program and other relevant quality documents. Table 3. Absolute maximum ratings Symbol 2.2 Parameter Value Unit -0.3 to 40 V Vsdc DC supply voltage Isdc Input current Vo DC output voltage -0.3 to 6 Io DC output current internally limited Tj Junction temperature internally limited V -40 to 150 C VESD HBM ESD voltage level (HBM-MIL STD 883C) 2 kV VESD CDM ESD voltage level (CDM AEC-Q100-011) 750 V Thermal data m Table 4. Symbol Thermal data(1) Parameter Value Unit Rthj-case Thermal resistance junction to case: SOT-223 20 K/W Rthj-amb Thermal resistance junction to ambient: SOT-223 79 K/W 1. The values quoted are for PCB 58 mm x 58 mm x 2 mm, FR4, double copper layer with single heatsink layer, copper thickness 35 m, copper area 2 cm2. 6/20 Doc ID 15541 Rev 8 L5150BN 2.3 Electrical specifications Electrical characteristics Values specified in this section are for VS = 5.6 V to 31 V, Tj = -40 C to +150 C unless otherwise stated. Table 5. General Pin Symbol Min. Typ. Vo Vo_ref Output voltage VS = 8 V to 18 V, Io = 8 mA to 150 mA 4.9 5.0 5.1 V Vo Vo_ref Output voltage VS = 5.6 V to 31 V, Io = 8 mA to 150 mA 4.85 5.0 5.15 V Vo Vo_ref Output voltage VS = 5.6 V to 31 V, Io = 0.1 mA to 8 mA 4.75 5.0 5.25 V Vo Ishort Short-circuit current VS = 13.5 V 0.65 1.10 1.45 A VS = 13.5 V 0.28 0.45 0.66 A VS = 6 V to 28 V, Io = 30 mA 40 mV VS = 8 V to 18 V, Io = 8 mA to 150 mA 55 Vo Ilim VS, Vo Vline Vo VS, Vo Vload Vdp Parameter Output current Test condition limitation(1) Line regulation voltage Load regulation voltage Drop voltage(2) mV VS = 13.5 V, Tj = 25 C, Io = 8 mA to 150 mA 40 Io = 150 mA 500 Hz(3) VS, Vo SVR Ripple rejection fr = 100 Vo Ioth_H Normal consumption mode output current VS = 8 V to 18 V Vo Ioth_L Very low consumption mode output current VS = 8 V to 18 V Vo Ioth_Hyst Output current switching threshold hysteresis VS = 13.5 V, Tj = 25 C 0.8 VS = 13.5 V, Io = 0.1 mA to 1 mA, Tj = 25 C 50 VS, Vo VS, Vo Iqn_1 Iqn_150 Current consumption Iqn_1 = IVs - Io 60 mA 1.1 Thermal protection temperature Tw_hy Thermal protection temperature hysteresis mA mA 80 A 95 VS = 13.5 V, Io = 150 mA Tw mV dB 8 VS = 13.5 V, Io = 0.1 mA to 1 mA, Current consumption Iqn_150 = IVs - Io Max. Unit 3.2 150 4.2 mA 190 C 10 C 1. Measured output current when the output voltage has dropped 100 mV from its nominal value obtained at 13.5 V and Io = 75 mA. 2. VS - Vo measured dropout when the output voltage has dropped 100 mV from its nominal value obtained at 13.5 V and Io = 75 mA. 3. Guaranteed by design. Doc ID 15541 Rev 8 7/20 Electrical specifications L5150BN 2.4 Electrical characteristics curves Figure 2. Output voltage vs. Tj Figure 3. Output voltage vs. VS 9RUHI 9 6O?REF6 )O M! 6S 6 ,R P$ 7F & 9 6 9 4J # *$3*&)7 '!0'#&4 Figure 5. Figure 4. Current consumption vs. output current Drop voltage vs. output current 6DP6 )QNM! 4J # 6S6 4J # 4J # )OM! '!0'#&4 '!0'#&4 Figure 6. )OM! Current consumption vs. output current (at light load condition) Figure 7. Current consumption vs. input voltage (Io = 0.1 mA) ) ,TQ $ ,TQ P$ 9V 9 7M & ,R P$ *$3*36 8/20 Doc ID 15541 Rev 8 9V 9 *$3*36 L5150BN Electrical specifications Figure 8. Current consumption vs. input voltage (Io = 75 mA) Figure 9. )QNM! Current limitation vs. Tj )LIMM! 6S6 4J # 6S6 '!0'#&4 '!0'#&4 Figure 10. Current limitation vs. input voltage Figure 11. Short-circuit current vs. Tj ,VKRUW P$ ,OLP P$ 9V 9 7M & 7M & 9V 9 '!0'#&4 7M & Figure 12. Short-circuit current vs. input voltage *$3*36 Figure 13. PSRR PSRR [dB] ,VKRUW P$ 70 Co=220nF 60 50 7M & 40 30 7M & 20 10 9V 9 0.1 *$3*36 Doc ID 15541 Rev 8 1 10 100 1000 0 10000 FREQUENCY [KHz] 9/20 Electrical specifications 2.5 L5150BN Application information The voltage regulator uses a p-channel mos transistor as a regulating element. With this structure a very low dropout voltage at current up to 150 mA is obtained. The output voltage is regulated up to input supply voltage of 40 V. The high-precision of the output voltage (2%) is obtained with a pre-trimmed reference voltage. The voltage regulator automatically adapts its own quiescent current to the output current level. In light-load conditions the quiescent current goes to 55 A only (low consumption mode). This procedure features a certain hysteresis on the output current (see Figure 6). Short-circuit protection to GND and a thermal shutdown are provided. Figure 14. Application schematic 9%$77 9R 9V & /%1 & Co &R *1' *$3*36 The input capacitor C 1 100 F is necessary as backup supply for negative pulses which may occur on the line. The second input capacitor C 2 220 nF is needed when the C1 is too distant from the VS pin and it compensates smooth line disturbances. The C0 ceramic capacitor, connected to the output pin, is for bypassing to GND the high-frequency noise and it guarantees stability even during sudden line and load variations. Suggested value is C 0 = 220 nF with ESR 100 m . Stability region is reported in Figure 15. 10/20 Doc ID 15541 Rev 8 L5150BN Electrical specifications Figure 15. Stability region (65 2KP 67$%,/,7<5(*,21 (65PLQ 817(67('5(*,21 &R ) *$3*36 Note: The curve which describes the minimum ESR is derived from characterization data on the regulator with connected ceramic capacitors which feature low ESR values (at 100 kHz). Any capacitor with further lower ESR than the given plot value must be evaluated in each and every case. Figure 16. Maximum load variation response 6O M6DIV )O M!DIV 63 6 )O TO M! 4C & #O N& *$3*36 Doc ID 15541 Rev 8 11/20 Package and PCB thermal data L5150BN 3 Package and PCB thermal data 3.1 SOT-223 thermal data Figure 17. SOT-223 PC board . '!0'03 Note: Layout condition of Rth and Zth measurements (PCB: double layer, FR4 area= 58 mm x 58 mm, PCB thickness = 2 mm, Cu thickness = 35 m (front and back side), footprint dimension 4.1 mm x 6.5 mm ). Figure 18. Rthj-amb vs. PCB copper area in open box free air condition 57+MBDPE .: IRRWSULQW 3&%&XKHDWVLQNDUHD FPA '!0'03 12/20 Doc ID 15541 Rev 8 L5150BN Package and PCB thermal data Figure 19. SOT-223 thermal impedance junction ambient single pulse =7+ .: &XIRRWSULQW &X F P 7LPH V *$3*36 Equation 1: pulse calculation formula Z TH = R TH +Z THtp (1 - ) where = tP/T Figure 20. Thermal fitting model of Vreg in SOT-223 *$3*&)7 Doc ID 15541 Rev 8 13/20 Package and PCB thermal data Table 6. 14/20 L5150BN SOT-223 thermal parameter Area (cm2) Footprint R1 (K/W) 1.53 R2 (K/W) 3.21 R3 (K/W) 5.2 R4 (K/W) 24 R5 (K/W) 0.1 R6 (K/W) 100 C1 (W.s/K) 0.00004 C2 (W.s/K) 0.0003 C3 (W.s/K) 0.03 C4 (W.s/K) 0.16 C5 (W.s/K) 1000 C6 (W.s/K) 0.5 Doc ID 15541 Rev 8 2 45 2 L5150BN Package and packing information 4 Package and packing information 4.1 ECOPACK(R) In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK(R) packages, depending on their level of environmental compliance. ECOPACK(R) specifications, grade definitions and product status are available at: www.st.com. ECOPACK(R) is an ST trademark. 4.2 SOT-223 mechanical data Figure 21. SOT-223 package dimensions *$3*36 Doc ID 15541 Rev 8 15/20 Package and packing information Table 7. L5150BN SOT-223 mechanical data mm. inch DIM. Min. Typ. A Max. Typ. 1.8 Max. 0.071 B 0.6 0.7 0.85 0.024 0.027 0.033 B1 2.9 3 3.15 0.114 0.118 0.124 c 0.24 0.26 0.35 0.009 0.01 0.014 D 6.3 6.5 6.7 0.248 0.256 0.264 e 2.3 0.09 e1 4.6 0.181 E 3.3 3.5 3.7 0.13 0.138 0.146 H 6.7 7 7.3 0.264 0.276 0.287 V A1 16/20 Min. 10 (max) 0.02 0.1 Doc ID 15541 Rev 8 0.0008 0.004 L5150BN 4.3 Package and packing information SOT-223 packing information Figure 22. SOT-223 tape and reel shipment (suffix "TR") 5HHOGLPHQVLRQV %DVHTW\ %XONTW\ $ PD[ % PLQ & ) * 1 PLQ 7 PD[ 7DSHGLPHQVLRQV !CCORDING TO %LECTRONIC )NDUSTRIES !SSOCIATION %)! 3TANDARD REV ! &EB 7DSHZLGWK 7DSHKROHVSDFLQJ &RPSRQHQWVSDFLQJ +ROHGLDPHWHU +ROHGLDPHWHU +ROHSRVLWLRQ &RPSDUWPHQWGHSWK +ROHVSDFLQJ : 3 3 ' ' PLQ ) . PD[ 3 %ND 3TART 4OP COVER TAPE .O COMPONENTS #OMPONENTS .O COMPONENTS MM MIN %MPTY COMPONENTS POCKETS SALED WITH COVER TAPE MM MIN 5SER DIRECTION OF FEED *$3*36 Doc ID 15541 Rev 8 17/20 Revision history 5 L5150BN Revision history Table 8. 18/20 Document revision history Date Revision Changes 18-Jun-2007 1 Initial release. 14-May-2008 2 Corrected Table 2: Pins description : inverted 1 and 3 pins descriptions. Updated Table 5: General : - Vo_ref parameter: updated test conditions and values. - Vline and Vshort : updated test condition - Ishort: changed values from 0.65/0.95/1.25 to 0.65/1.10/1.45 (Min/Typ/Max) - Ilim: changed values from 0.7/1/1.30 to 0.28/0.45/0.66, added note - Vdp: added note - Inserted Ioth_L, Ioth_H, Ioth_Hyst rows - Iqn_1: changed values from 38/48 to 48/70 (Typ/Max). 09-Sep-2008 3 Updated Table 5: General : - Vload parameter: changed test conditions. Doc ID 15541 Rev 8 L5150BN Revision history Table 8. Document revision history (continued) Date Revision Changes 16-Jun-2009 4 Updated corporate template (from V2 to V3) Changed document title Section : Features on cover page - Iq on table: changed value from 48 A to 50 A - Added row in bullet list Table 2: Pins description Vo: changed ceramic capacitor expression for Function Table 3: Absolute maximum ratings - Updated all symbols Table 4: Thermal data - Rthj-amb: changed value - Updated TableFootnote Table 5: General - Vload: changed max value for Vs = 8 V to 18 V, added new row - Iqn_1: changed Test condition (added Tj = 25 C), changed typ/max value for Tj = 25 C , added new row - Iqn_150: changed typ value Added Figure 2: Output voltage vs. Tj Added Figure 3: Output voltage vs. VS Added Figure 4: Drop voltage vs. output current Added Figure 5: Current consumption vs. output current Added Figure 6: Current consumption vs. output current (at light load condition) Added Figure 7: Current consumption vs. input voltage (Io = 0.1 mA) Added Figure 8: Current consumption vs. input voltage (Io = 75 mA) Added Figure 9: Current limitation vs. Tj Added Figure 10: Current limitation vs. input voltage Added Figure 11: Short-circuit current vs. Tj Added Figure 12: Short-circuit current vs. input voltage Added Figure 13: PSRR Section 2.5: Application information - Changed section title from "Voltage regulator" to "Application information" - Updated text - Added Figure 14: Application schematic - Added Figure 16: Maximum load variation response Added Section 3: Package and PCB thermal data Changed Section 4.1: ECOPACK(R) 04-Dec-2009 5 Updated features list. Updated Section 2.5: Application information. 06-Apr-2010 6 Updated Table 5: General: - Iqn_1 and Iqn_150: updated test parameter. 30-Jan-2012 7 Modified Figure 15: Stability region on page 11. 07-Feb-2012 8 Modified Figure 15: Stability region on page 11. Doc ID 15541 Rev 8 19/20 L5150BN 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. 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The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners. (c) 2012 STMicroelectronics - All rights reserved STMicroelectronics group of companies Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Philippines - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America www.st.com 20/20 Doc ID 15541 Rev 8