LDS3985PU33R

LDS3985 Very low drop and low noise BiCMOS 300 mA voltage regulator Datasheet - production data       Features        Input voltage from 2.5 V to 6 V Stable with low ESR ceramic capacitors Very low dropout voltage (150 mV typ. at 300 mA load, 0.4 mV typ. at 1 mA load) Very low quiescent current (85 µA typ. at no load, 200 µA typ. at 300 mA load; max. 1.5 µA in OFF mode) Guaranteed output current up to 300 mA Wide range of output voltages available on request: fixed from 1.25 V to 5 V with 100 mV step Fast turn-on time: typ. 240 µs  [CO = 2.2 µF, CBYP = 33 nF and IO = 1 mA] Logic-controlled electronic shutdown Internal current and thermal limit Low output voltage noise: 30 µ VRMS over 10 Hz to 100 kHz SVR of 55 dB at 1 kHz, 50 dB at 10 kHz Temperature range: - 40 °C to 125 °C Automotive grade product available in DFN6 package, temperature range: - 40 °C to 85 °C Description The LDS3985 provides up to 300 mA, from 2.5 V to 6 V input voltage. It is stable with ceramic and high quality tantalum capacitor. The ultra low drop voltage, low quiescent current and low noise make it suitable for low power applications and battery-powered systems. Shutdown logic control function is available, this means that when the device is used as local regulator, it is possible to put a part of the board in standby, decreasing the total power consumption. Typical applications are mobile phones and similar battery-powered wireless systems, portable information appliances. Table 1: Device summary Packages SOT23-5L DFN6 (3 x 3 mm) LDS3985M15R LDS3985PU15R DFN6 (3 x 3 mm) automotive-grade 1.5 LDS3985PU18RY LDS3985M18R (1) LDS3985M25R LDS3985M28R 1.8 2.5 LDS3985PU28R 2.8 LDS3985M30R LDS3985M33R Output voltage (V) 3.0 LDS3985PU33R LDS3985PU33RY(1) LDS3985M50R 3.3 5.0 Notes: (1)Qualified and characterized according to AEC Q100 and Q003 or equivalent, advanced screening according to AEC Q001 and Q002 or equivalent. May 2017 DocID11039 Rev 10 This is information on a product in full production. 1/21 www.st.com Contents LDS3985 Contents 1 Diagram ............................................................................................ 3 2 Pin configuration ............................................................................. 4 3 Maximum ratings ............................................................................. 5 4 5 Electrical characteristics ................................................................ 6 Typical performance characteristics ........................................... 10 6 Package information ..................................................................... 13 7 2/21 6.1 SOT23-5L package information ...................................................... 13 6.2 SOT23-5L packing information........................................................ 15 6.3 DFN6 (3 x 3 mm) package information ........................................... 16 6.4 DFN6 (3 x 3 mm) packing information ............................................. 18 Revision history ............................................................................ 20 DocID11039 Rev 10 LDS3985 1 Diagram Diagram Figure 1: Schematic diagram DocID11039 Rev 10 3/21 Pin configuration 2 LDS3985 Pin configuration Figure 2: Pin connections (top view for SOT23-5L, and for DFN6 (3 x 3 mm)) Table 2: Pin description Pin for Pin for SOT23-5L DFN6 (3 x 3 mm) 1 1 VI LDO input voltage 2 5 GND Common ground 3 6 VINH Inhibit input voltage: ON mode when VINH ≥ 1.2 V, OFF mode when VINH ≤ 0.4 V (do not leave it floating; it is not internally pulled down/up) 4 4 Bypass 5 3 VO - 2 N.C. 4/21 Symbol Name and function Bypass pin: an external capacitor to be connected (usually 10 nF) to minimize noise voltage LDO output voltage Not connected DocID11039 Rev 10 LDS3985 3 Maximum ratings Maximum ratings Table 3: Absolute maximum ratings Symbol Parameter Value Unit -0.3 to 6 (1) V VI DC input voltage VO DC output voltage -0.3 to VI + 0.3 V Inhibit input voltage -0.3 to VI + 0.3 V VINH IO Output current Internally limited PD Power dissipation Internally limited TSTG TOP Storage temperature range -65 to 150 °C Operating junction temperature range -40 to 125 °C Operating junction temperature range, automotive grade version - 40 to 85 °C Notes: (1)The input pin is able to withstand non repetitive spike of 6.5 V for 200 ms. Absolute maximum ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied. Table 4: Thermal data Symbol Parameter SOT23-5L DFN6 (3 x 3 mm) Unit RthJC Thermal resistance junction-case 81 10 °C/W RthJA Thermal resistance junction-ambient 255 55 °C/W DocID11039 Rev 10 5/21 Electrical characteristics 4 LDS3985 Electrical characteristics TJ = 25 °C, VI = VO(NOM) + 0.5 V, CI = 1 µF, CO = 2.2 µF, CBYP = 33 nF, IO = 1 mA, VINH = 1.4 V, unless otherwise specified. Table 5: LDS3985 electrical characteristics Symbol Parameter VI Operating input voltage VO Output voltage < 2.5 V VO Output voltage ≥ 2.5 V ∆VO Line regulation (1) Test condition Min. Typ. Max. Unit 2.5 6 V IO = 1 mA -50 50 TJ = - 40 to 125 °C -75 75 IO = 1 mA -2 2 TJ= - 40 to 125 °C -3 3 VI = VO(NOM) + 0.5 to 6 V, TJ = - 40 to 125 °C -0.1 0.1 VO = 4.7 to 5 V -0.19 0.19 mV % VO(NOM) %/V ∆VO Load regulation IO = 1 mA to 300 mA, VO ≤ 2.5 V TJ = - 40 to 125 °C 0.005 0.01 %/mA ∆VO Load regulation IO = 1 mA to 300 mA, VO ≥ 2.5 V TJ = - 40 to 125 °C 0.0008 0.004 %/mA ∆VO Output AC line regulation (2) VI = VO(NOM) + 1 V, IO = 300 mA, tR = tF = 30 µs 5 IO = 0 85 Quiescent current ON mode: VINH = 1.4 V IQ IO = 0, TJ = - 40 to 125 °C IO = 0 to 300 mA 150 200 IO = 0 to 300 mA, TJ = - 40 to 125 °C 300 TJ = - 40 to 125 °C IO = 1 mA 1.5 0.4 IO = 1 mA, TJ = - 40 to 125 °C IO = 150 mA Dropout voltage (3) 2 60 IO = 150 mA, TJ = - 40 to 125 °C IO = 300 mA IO = 300 mA, TJ = - 40 to 125 °C 6/21 µA 0.003 OFF mode: VINH = 0.4 V VDROP mVPP DocID11039 Rev 10 100 150 250 mV LDS3985 Symbol Electrical characteristics Parameter ISC SVR Test condition Short-circuit current RL = 0 Supply voltage rejection VI = VO(NOM)+ 0.25 V ± VRIPPLE = 0.1 V, IO = 50 mA For VO(NOM) < 2.5 V, VI = 2.55 V Min. Typ. Max. 600 f = 1 kHz Unit mA 55 dB f = 10 kHz 50 Peak output current VO ≥ VO(NOM) - 5% 300 Inhibit input logic low Inhibit input logic high VI = 2.5 V to 6 V, TJ = - 40 to 125 °C 1.4 IINH Inhibit input current VINH = 0.4 V, VI = 6 V ±1 nA eN Output noise voltage BW = 10 Hz to 100 kHz, CO = 2.2 µF 30 µVRMS tON Turn-on time (4) CBYP = 33 nF 240 µs 160 °C IO(PK) VINH TSHDN Thermal shutdown CO Output capacitor ESR mA 0.4 (5) Capacitance 550 V 2.2 22 µF 5 5000 mΩ Notes: (1)For VO(NOM) < 2 V, VI = 2.5 V. (2)For VO(NOM) = 1.25 V, VI = 2.5 V. (3)Dropout voltage is the input-to-output voltage difference at which the output voltage is 100 mV below its nominal value. This specification does not apply to input voltages below 2.5 V. (4)Turn-on time is time measured between the enable input just exceeding VINH high value and the output voltage just reaching 95% of its nominal value. (5)Typical thermal protection hysteresis is 20 °C. DocID11039 Rev 10 7/21 Electrical characteristics LDS3985 Table 6: LDS3985 (automotive grade) electrical characteristics Symbol Parameter VI Operating input voltage VO Output voltage < 2.5 V VO Output voltage ≥ 2.5 V ∆VO Line regulation (1) Test condition Min. Typ. Max. Unit 2.5 6 V IO = 1 mA -50 50 mV TJ = - 40 to 85 °C -75 75 IO = 1 mA -2 2 TJ= - 40 to 85 °C -3 3 VI = VO(NOM) + 0.5 to 6 V, TJ = - 40 to 85 °C -0.1 0.1 VO = 4.7 to 5 V -0.19 0.19 % VO(NOM) %/V Load regulation IO = 1 mA to 300 mA, VO ≤ 2.5 V TJ = - 40 to 85 °C 0.005 0.01 %/mA ∆VO Load regulation IO = 1 mA to 300 mA, VO ≥ 2.5 V TJ = - 40 to 85 °C 0.0008 0.004 %/mA ∆VO Output AC line regulation (2) VI = VO(NOM) + 1 V, IO = 300 mA tR = tF = 30 µs 5 IO = 0 85 ∆VO Quiescent current ON mode: VINH = 1.4 V IQ IO = 0, TJ = - 40 to 85 °C 150 IO = 0 to 300 mA 200 IO = 0 to 300 mA, TJ = - 40 to 85 °C OFF mode: VINH = 0.4 V 0.003 TJ = - 40 to 85 °C 1.5 0.4 IO = 1 mA, TJ = -40 to 85 °C 2 IO = 150 mA Dropout voltage (3) 60 IO = 150 mA, TJ = - 40 to 85 °C 100 IO = 300 mA SVR 8/21 Short-circuit current RL = 0 Supply voltage rejection VI = VO(NOM) + 0.25 V ± VRIPPLE = 0.1 V, IO = 50 mA For VO(NOM) < 2.5 V VI = 2.55 V mV 150 IO = 300 mA, TJ = - 40 to 85 °C ISC µA 300 IO = 1 mA VDROP mVPP 250 600 f = 1 kHz mA 55 dB f = 10 kHz DocID11039 Rev 10 50 LDS3985 Symbol Electrical characteristics Parameter IO(PK) VINH Test condition Peak output current VO ≥ VO(NOM) - 5% Inhibit input logic low VI = 2.5 V to 6 V, TJ = - 40 to 85 °C Inhibit input logic high Min. Typ. 300 550 Max. Unit mA 0.4 1.4 V IINH Inhibit input current VINH = 0.4 V, VI = 6 V ±1 nA eN Output noise voltage BW = 10 Hz to 100 kHz, CO = 2.2 µF 30 µVRMS tON Turn-on time (4) CBYP = 33 nF 240 µs 160 °C TSHDN Thermal shutdown CO Output capacitor (5) Capacitance ESR 2.2 22 µF 5 5000 mΩ Notes: (1)For VO(NOM) < 2 V, VI = 2.5 V. (2)For VO(NOM) = 1.25 V, VI = 2.5 V. (3)Dropout voltage is the input-to-output voltage difference at which the output voltage is 100 mV below its nominal value. This specification does not apply to input voltages below 2.5 V. (4)Turn-on time is time measured between the enable input just exceeding VINH high value and the output voltage just reaching 95% of its nominal value. (5)Typical thermal protection hysteresis is 20 °C. DocID11039 Rev 10 9/21 Typical performance characteristics 5 LDS3985 Typical performance characteristics TJ = 25 °C, VI = VO(NOM) + 0.5 V, CI = 1 µF, CO = 2.2 µF, CBYP = 33 nF, IO = 1 mA, VINH = 1.4 V, unless otherwise specified. Figure 3: Output voltage vs temperature VO = 1.35 V Figure 4: Output voltage vs temperature VO = 2.8 V Figure 5: Output voltage vs temperature VO = 3.3 V Figure 6: Inhibit voltage vs temperature VO = 1.35 V Figure 7: Inhibit voltage vs temperature (VO = 3.3 V) Figure 8: Line regulation vs temperature (VI = 2.5 V to 6 V) 10/21 DocID11039 Rev 10 LDS3985 Typical performance characteristics Figure 9: Line regulation vs temperature (VI = 3.2 V to 6 V) Figure 10: Line regulation vs temperature (VI = 3.8 V to 6 V) Figure 11: Quiescent current vs temperature (VI = 2.5 V) Figure 12: Quiescent current vs temperature (VI = 6 V) Figure 13: Quiescent current vs temperature (VI = 3.4 V) Figure 14: Supply voltage rejection vs frequency DocID11039 Rev 10 11/21 Typical performance characteristics LDS3985 Figure 15: Dropout voltage vs temperature Figure 16: Dropout voltage vs output current Figure 17: Inhibit transient 12/21 DocID11039 Rev 10 LDS3985 6 Package information 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 SOT23-5L package information Figure 18: SOT23-5L package outline DocID11039 Rev 10 13/21 Package information LDS3985 Table 7: SOT23-5L package mechanical data mm Dim. Min. Typ. A 0.90 1.45 A1 0 0.15 A2 0.90 1.30 b 0.30 0.50 c 0.09 0.20 D 2.95 E 1.60 e 0.95 H 2.80 L 0.30 0.60 θ 0° 8° Figure 19: SOT23-5L recommended footprint Dimensions are in mm 14/21 Max. DocID11039 Rev 10 LDS3985 6.2 Package information SOT23-5L packing information Figure 20: SOT23-5L tape and reel outline D A N T Po Bo Ko Ao P Table 8: SOT23-5L tape and reel mechanical data Dim. mm Min. Typ. A Max. 180 C 12.8 D 20.2 N 60 13.0 T 13.2 14.4 Ao 3.13 3.23 3.33 Bo 3.07 3.17 3.27 Ko 1.27 1.37 1.47 Po 3.9 4.0 4.1 P 3.9 4.0 4.1 DocID11039 Rev 10 15/21 Package information 6.3 LDS3985 DFN6 (3 x 3 mm) package information Figure 21: DFN6 (3 x 3 mm) package outline 16/21 DocID11039 Rev 10 LDS3985 Package information Table 9: DFN6 (3 x 3 mm) mechanical data mm Dim. Min. A 0.80 A1 0 A3 Max. 1 0.02 0.05 0.20 b 0.23 D 2.90 D2 2.23 E 2.90 E2 1.50 e L Typ. 0.45 3 3.10 2.50 3 3.10 1.75 0.95 0.30 0.40 0.50 Figure 22: DFN6 (3 x 3 mm) recommended footprint DocID11039 Rev 10 17/21 Package information 6.4 LDS3985 DFN6 (3 x 3 mm) packing information Figure 23: DFN6 (3 x 3 mm) tape outline 18/21 DocID11039 Rev 10 LDS3985 Package information Figure 24: DFN6 (3 x 3 mm) reel outline Table 10: DFN6 (3 x 3 mm) tape and reel mechanical data mm Dim. Min. Typ. Max. A0 3.20 3.30 3.40 B0 3.20 3.30 3.40 K0 1 1.10 1.20 DocID11039 Rev 10 19/21 Revision history 7 LDS3985 Revision history Table 11: Document revision history Date Revision 02-Dec-2004 1 First release. 10-Apr-2007 2 Added: new package TSOT23-5L. 16-May-2007 3 Added: new mechanical data DFN6D and order codes updated. 06-Sep-2007 4 Added: Table 1 in cover page. 11-Jun-2008 5 Modified: not found. 11-Jul-2009 6 Modified: not found. 29-Jul-2010 7 Modified: not found and not found. 8 Modified the Title and the Features in cover page. Deleted Table1: Device summary. Updated not found and not found. Added and not found. Minor text changes. 28-Feb-2014 9 Modified the Title and the Features in cover page. Deleted Table1: Device summary. Updated Table 10: Order codes and Section 6: Package mechanical data. Added Table 6: LDS3985 (automotive grade) electrical characteristics and Section 7: Packaging mechanical data. Minor text changes. 03-May-2017 10 Updated Table 1: "Device summary". Minor text changes. 24-Oct-2013 20/21 Changes DocID11039 Rev 10 LDS3985 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 DocID11039 Rev 10 21/21