LD39030 Datasheet 300 mA very low dropout linear regulator IC Features DFN4 1x1 * * * * * * * * Input voltage from 1.5 to 5.5 V Ultra low dropout voltage (300 mV typ. at 300 mA load) Very low quiescent current (20 A typ. at no load, 0.03 A typ. in off mode) Output voltage tolerance: 0.5 % (A version) or 2.0 % @ 25 C (standard version) 300 mA guaranteed output current High PSRR (80 dB@1 kHz, 50 db@100 kHz) Wide range of output voltages available on request: from 0.8 V up to 5.0 V in 50 mV step Logic-controlled electronic shutdown Internal soft-start Optional output voltage discharge feature Compatible with ceramic capacitor COUT = 0.47 F * * * Internal constant current and thermal protections Available in DFN4 1x1 Operating temperature range: -40 C to 125 C * * * Applications Maturity status link LD39030 * * * * * Mobile phones Tablets Digital still cameras (DSC) Cordless phones and similar battery-powered systems Portable media players Description The LD39030 high accuracy voltage regulator provides 300 mA of maximum current from an input voltage ranging from 1.5 V to 5.5 V, with a typical dropout voltage of 300 mV. It is available in DFN4 1 x 1 package, allowing the maximum space saving. The device is stabilized with a ceramic capacitor on the output. The ultra low drop voltage, low quiescent current and low noise features, together with the internal softstart circuit, make the LD39030 suitable for low power battery-operated applications. An enable logic control function puts the LD39030 in shutdown mode allowing a total current consumption lower than 0.1 A. Constant current and thermal protection are provided. DS11386 - Rev 4 - May 2018 For further information contact your local STMicroelectronics sales office. www.st.com LD39030 Diagram 1 Diagram Figure 2. Block diagram VIN VOUT Bias generator OPAMP EN Enable Thermal protection Bandgap reference * GND AM13852V1 Note: DS11386 - Rev 4 The output discharge MOSFET is optional. page 2/20 LD39030 Pin configuration 2 Pin configuration Figure 3. Pin connection (top view) Table 1. Pin description DS11386 - Rev 4 Pin n DFN4 1x1 Symbol Function 1 OUT Output voltage 2 GND Common ground 3 EN Enable pin logic input: Low = shutdown, High = active 4 IN Input voltage Thermal pad GND Connect to GND on the PCB page 3/20 LD39030 Typical application 3 Typical application Figure 4. Typical application circuits VIN VI ON OFF EN VOUT VO LD39030 C In GND C Out GIPD281020151007MT DS11386 - Rev 4 page 4/20 LD39030 Maximum ratings 4 Maximum ratings Table 2. Absolute maximum ratings Note: Symbol Parameter Value Unit VIN Input voltage - 0.3 to 7 V VOUT Output voltage - 0.3 to VIN + 0.3 V VEN Enable input voltage - 0.3 to 7 V IOUT Output current Internally limited mA PD Power dissipation Internally limited mW TSTG Storage temperature range - 40 to 150 C TOP Operating junction temperature range - 40 to 125 C Absolute maximum ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied. All values are referred to GND. Table 3. Thermal data Symbol Parameter Value Unit RthJA Thermal resistance junction-ambient 250 C/W Table 4. ESD Performance Symbol ESD DS11386 - Rev 4 Parameter ESD Protection voltage Test conditions Value Unit HBM 4 kV MM 400 V CDM 500 V page 5/20 LD39030 Electrical characteristics 5 Electrical characteristics TJ = 25 C, VIN = VOUT(NOM) + 1 V , CIN = COUT = 1 F, IOUT = 1 mA, VEN = VIN, unless otherwise specified. Table 5. Electrical characteristics Symbol Parameter VIN Operating input voltage VOUT VOUT accuracy (LD39030) Test conditions IOUT = 1 mA, TJ = 25 C IOUT = 1 mA, -40 C < TJ < 125 C IOUT = 1 mA, TJ = 25 C VOUT VOUT accuracy (LD39030A) IOUT = 1 mA, -40 C < TJ < 125 C VOUT VOUT VDROP Static line regulation (1) Static load regulation Dropout voltage VOUT(NOM) + 1 V VIN 5.5 V, IOUT = 10 mA Min. Typ. Max. Unit 1.5 5.5 V -2 2 % -3 3 % -0.5 0.5 % -1.5 1.5 % 0.02 -40 C < TJ < 125 C IOUT = 0 mA to 300 mA %/V 0.2 18 -40 C < TJ < 125 C mV 0.01 IOUT = 30 mA,VOUT = 2.8 V 35 IOUT = 300 mA, VOUT = 2.8 V 330 %/mA mV -40 C < TJ < 125 C eN Output noise voltage 10 Hz to 100 kHz, IOUT = 10 mA 45 VRMS/V VIN = VOUT(NOM)+ 1 V +/VRIPPLE VRIPPLE = 0.2 V Freq .=1 kHz SVR Supply voltage rejection 80 IOUT = 30 mA dB VIN = VOUT(NOM)+ 1 V +/VRIPPLE VRIPPLE = 0.2 V Freq. = 100 kHz 55 IOUT = 30 mA DS11386 - Rev 4 IOUT = 0 mA 20 IOUT = 300 mA 130 Standby Current VIN input current in OFF MODE: VEN = GND 0.03 ISC Short circuit current RL = 0 480 mA RON Output voltage discharge MOSFET (only on LD39030DT, LD39030ADT) 100 IQ Quiescent current IStandby 40 1 A A page 6/20 LD39030 Electrical characteristics Symbol Parameter Test conditions Enable input logic low VIN = 1.5 V to 5.5 V Min. Typ. VIN = 1.5 V to 5.5 V Enable input logic high -40 C < TJ < 125 C V 1 IEN Enable pin input current TON (2) Turn on time 100 TSHDN Thermal shutdown 160 Hysteresis 20 COUT Output capacitor Unit 0.4 -40 C < TJ < 125 C VEN Max. VEN = VIN Capacitance (see )Figure 18. Stability area vs. (COUT, 0.47 ESR) 100 nA s C 22 F 1. Not applicable for VOUT(NOM) > 4.5 V 2. Turn-on time is time measured between the enable input just exceeding VEN high value and the output voltage just reaching 95 % of its nominal value DS11386 - Rev 4 page 7/20 LD39030 Application information 6 Application information 6.1 Soft start function The LD39030 has an internal soft start circuit. By increasing the startup time up to 100s, without the need of any external soft start capacitor, this feature is able to keep the regulator inrush current at startup under control. 6.2 Output discharge function The LD39030 integrates a MOSFET connected between Vout and GND. This transistor is activated when the EN pin goes to low logic level and has the function to quickly discharge the output capacitor when the device is disabled by the user. The device is available with or without auto-discharge feature. See Section 9 Ordering information for more details. 6.3 Input and output capacitors The LD39030 requires external capacitors to assure the regulator control loop stability. Any good quality ceramic capacitor can be used but, the X5R and the X7R are suggested since they guarantee a very stable combination of capacitance and ESR overtemperature. Locating the input/output capacitors as closer as possible to the relative pins is recommended. The LD39030 requires an input capacitor with a minimum value of 1 F. This capacitor must be located as closer as possible to the input pin of the device and returned to a clean analog ground. The control loop of the LD39030 is designed to work with an output ceramic capacitor. This capacitor must meet the requirements of minimum capacitance and equivalent series resistance (ESR), as shown in Figure 18. Stability area vs. (COUT, ESR). To assure stability, the output capacitor must maintain its ESR and capacitance in the stable region, over the full operating temperature range. The LD39030 shows stability with a minimum effective output capacitance of 220 nF. However, to keep stability in all operating conditions (temperature, input voltage and load variations), a minimum output capacitor of 0.47 F is recommended. The suggested combination of 1 F input and output capacitors offers a good compromise among the stability of the regulator, optimum transient response and total PCB area occupation. DS11386 - Rev 4 page 8/20 LD39030 Typical characteristics 7 Typical characteristics (CIN = COUT = 1 F, VEN to VIN, TJ = 25C unless otherwise specified) Figure 5. Output voltage vs. temperature (I OUT = 1 mA) Figure 6. Output voltage vs. temperature (I OUT = 200 mA) 3.4 3.38 Output Voltage [V] Output Voltage [V] 3.36 3.34 3.32 3.3 3.28 3.26 3.24 3.22 3.2 -40 -25 0 25 55 Temperature [ C] VIN = 4.3 V, IOUT = 1 mA 85 -40 125 -25 0 25 55 Temperature [ C] 85 VIN=4.3V, IOUT=200mA AM13855V1 125 AM13856V1 Figure 8. Load regulation vs. temperature Figure 7. Line regulation vs. temperature 50 Load regulation [mV] Line regulation [%/V] 45 -0.05 40 35 30 25 20 15 10 5 -0.15 0 -50 Temperature [ C] VIN = 4.3 V to 5.5 V, IOUT = 10 mA 0 25 50 75 Temperature [C] 100 125 VIN = 2.8 V, VOUT = 1.8 V IO = 0.3 A AM13857V1 DS11386 - Rev 4 -25 GIPD281020151129MT page 9/20 LD39030 Typical characteristics Figure 9. Quiescent current vs. temperature (IOUT = 0 mA) Figure 10. Quiescent current vs. temperature (IOUT = 200 mA) 50 260 240 220 200 180 160 140 120 100 80 60 40 20 0 45 Quiescent Current [A] Quiesce nt current [A] 40 35 30 25 20 15 10 5 0 -40 -25 0 25 55 85 125 -50 Temperature [ C] VIN = 4.3 V, IOUT = 0 mA -25 0 25 50 Temperature [C] 75 100 125 VIN = 2.8 V, VOUT=1.8 V IO = 0.3 A AM13859V1 GIPD281020151212MT Figure 11. Shutdown current vs. temperature Figure 12. Quiescent current vs. load current 200 1 180 Quiescent current [A] 0.9 Quiescent curr ent [A] 0.8 0.7 0.6 0.5 0.4 0.3 160 140 120 100 80 60 40 0.2 20 0.1 0 0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.160.18 0.2 0.22 0.240.26 0.28 0.3 0 -40 -25 0 25 55 85 125 Load current [A] Temperature [C] VIN = 2.8 V, VOUT = 1.8 V IO = 0 to 0.3 A VIN = V, VEN = GND AM13861V1 GIPD281020151230MT Figure 14. Dropout voltage vs. temperature Figure 13. Quiescent current vs. input voltage 275 100 250 90 Iout = 0 mA 225 Iout = 1 mA Iout = 50 mA 175 60 50 40 30 125 100 75 50 10 25 0 0 1 V IN = 2 V, V OUT = 1 V 2 3 4 5 6 Input voltage [V] AM13863V1 DS11386 - Rev 4 Iout = 100 mA Iout = 200 mA 150 20 0 Iout = 30 mA 200 Iout = 10 mA 70 Dropout voltage [mV] Quiescent current [A] 80 -40 -25 0 25 Temperature [ C] 55 85 125 AM13864V1 page 10/20 LD39030 Typical characteristics Figure 15. Supply voltage rejection vs. frequency Figure 16. Supply voltage rejection vs. input voltage 100 90 Iout = 1 mA 90 80 Iout = 30 mA Iout = 100 mA 80 70 Iout = 200 mA 70 60 50 SVR [dB] SVR [dB] 60 50 40 f = 1 kHz 40 f = 10 kHz f = 100 kHz 30 30 20 20 10 10 0 100 1000 10000 Frequency [Hz] 100000 0 1000000 1 VIN= 2 V +/ - 200 m V, VOUT = 1 V, C OUT = 1 F 1.5 2 2.5 3 3.5 Input voltage [V] 4 4.5 5 5.5 6 IOUT = 30mA , V OUT = 1 V , C OUT = 1 F AM13865V1 AM13866V1 Figure 18. Stability area vs. (COUT, ESR) Figure 17. Output noise spectral density 4.0 1.4 Iout = 0 mA 3.5 Iout = 10 mA 1.2 1 2.5 ESR @ 100KHz[] eN [uV / SQRT(Hz)] 3.0 2.0 1.5 0.8 0.6 1.0 0.4 0.5 0.2 0.0 10 100 1000 10000 100000 STABILITY AREA 0 0 1 2 Frequency [Hz] 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 C OUT [F] (nominal value) V IN from 2 to V IN = 2.0 V, V OUT = 1.0 V, C IN = C OUT = 1 F 5.5 V, I OUT from 0 to 300 mA, C IN = 1 F AM13868V1 AM13867V1 Figure 19. Enable startup (VOUT = 1 V) V EN Figure 20. Enable startup (VOUT = 5 V) V EN V OUT V OUT I OUT I OUT V IN = 2 V , V EN = 0 V to V IN, I OUT = 0.2 A , V OUT =1 V, Tr = 5 s V IN = 5.5 V ,V EN = 0 V to 2 V, I OUT = 0.2A , V OUT = 5 V, Tr = 5 s AM13869V1 DS11386 - Rev 4 AM13870V1 page 11/20 LD39030 Typical characteristics Figure 21. Turn-on time (VOUT = 1 V) Figure 22. Turn-off time (VOUT = 1 V) V IN V IN V OUT V OUT I OUT I OUT V IN = V EN = from 5.5 V to 0 V, I OUT = 0.2 A , V OUT = 1 V, T f = 5 s V IN = V EN = from 0 V to 5.5 V, I OUT = 0.2 A , V OUT = 1 V, T r = 5 s AM13871V1 AM13872V1 Figure 23. Turn-on time (VOUT = 5 V) Figure 24. Turn-off time (VOUT = 5 V) VI N VOUT V IN IOUT V OUT I OUT V IN = V EN = from 5.5 V to 0 V, I OUT = 0.2 A ,V OUT = 5 V, T f = 5 s VIN = V EN = from 0 V to 5.5 V, I OUT = 0.2A , VOUT = 5 V, Tr = 5 s AM13874V1 AM13873V1 Figure 25. Line transient (VOUT = 1 V) V IN Figure 26. Line transient (VOUT = 5 V) VIN V OUT V OUT V IN = V EN = from 2 V to 3 V , I OUT = 10 mA ,V OUT = 1 V, Tr= T f = 5 s V IN = V EN = from 5.1 V to 5.5 V, I AM13875V1 DS11386 - Rev 4 OUT = 10 mA ,V OUT = 5 V, Tr =T f = 5 s AM13876V1 page 12/20 LD39030 Typical characteristics Figure 27. Load transient (V OUT = 1 V) Figure 28. Load transient (V OUT = 5 V) IOUT I OUT VOUT V OUT V IN = V EN = 5.5 V, IOUT = from 0 to 0.2 A , V OUT = 5 V, t r= t f = 5 s V IN = V EN = 2 V, IOUT = from 0 to 0.2 A , V OUT = 1 V, t r= t f = 5 s AM13877V1 DS11386 - Rev 4 AM13878V1 page 13/20 LD39030 Package information 8 Package information 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. DS11386 - Rev 4 page 14/20 LD39030 DFN4 1x1 package info 8.1 DFN4 1x1 package information Figure 29. DFN4 1x1 package outline 8405587_A DS11386 - Rev 4 page 15/20 LD39030 DFN4 1x1 package info Table 6. DFN4 1x1 mechanical data Dim. mm. Min. Typ. Max. A 0.34 0.37 0.40 A1 0 0.02 0.05 A3 0.10 b 0.17 0.22 0.27 D 0.95 1.00 1.05 D2 0.43 0.48 0.53 E 0.95 1.00 1.05 E2 0.43 0.48 0.53 e DS11386 - Rev 4 0.65 L 0.20 K 0.15 0.25 0.30 page 16/20 LD39030 DFN4 1x1 package info Figure 30. DFN4 1x1 recommended footprint 8405587_A DS11386 - Rev 4 page 17/20 LD39030 Ordering information 9 Ordering information Table 7. Order code Order code LD39030DTPU12R(1) LD39030ADTPU12R LD39030DTPU18R LD39030ADTPU18R LD39030DTPU25R Output voltage (V) Auto-dishcarge 1.2 Yes 1.8 Yes 2.5 Yes 2.8 Yes 3.0 Yes 3.3 Yes (1) LD39030ADTPU25R (1) LD39030DTPU28R LD39030ADTPU28R LD39030DTPU30R V LD39030ADTPU30R V LD39030DTPU33R Tolerance % Marking 2 X5 0.5 W5 2 X7 0.5 W7 2 XA 0.5 WA 2 XC 0.5 WC 2 XF 0.5 WF 2 XJ 1. Available on request. DS11386 - Rev 4 page 18/20 LD39030 Revision history Table 8. Document revision history DS11386 - Rev 4 Date Revision 16-Nov-2015 1 18-May-2016 2 30-Aug-2016 3 17-May-2018 4 Changes Initial release. Updated Section 9: "Ordering information". Minor text changes. Updated Ordering information. Minor text changes. Updated: VOUT parameter Table 5. Electrical characteristics and Section 9 Ordering information. page 19/20 LD39030 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. (c) 2018 STMicroelectronics - All rights reserved DS11386 - Rev 4 page 20/20