LDK320AU50R

LDK320 200 mA high accuracy and high PSRR voltage regulator Features SOT-89 SOT23-5L Maturity status link LDK320 • • • • • • • • • • Input voltage from 2.5 to 18 V Very low-dropout voltage (100 mV typ. @ 100 mA load) Low quiescent current (typ. 60 μA, 1 μA in off mode) High PSRR: 88 dB @ 120 Hz Low noise Output voltage tolerance: ± 0.5% @ 25 °C (LDK320A) or ± 2% 25 °C Output current up to 200 mA Wide range of output voltages available on request: fixed from 1.2 V to 12 V with 100 mV step and adjustable Logic-controlled electronic shutdown Compatible with ceramic capacitor COUT = 1 μF • • • Current, SOA and thermal protections Available in SOT23-5L and SOT-89 packages Temperature range: -40 °C to 125 °C Applications • • • • • DSC TV BD, DVD PC Industrial Description The LDK320 is a low drop voltage regulator, which provides a maximum output current of 200 mA from an input voltage in the range of 2.5 V to 18 V, with a typical dropout voltage of 100 mV. It is stabilized with a ceramic capacitor on the output. The very good dynamic characteristic, combined with low drop voltage and low quiescent current make it suitable for low power battery-powered applications. The enable logic control function allows the LDK320 to be in shutdown mode by consuming a total current lower than 1 μA. This device also includes a short-circuit current limiting, thermal and SOA protections. DS11321 - Rev 9 - April 2022 For further information contact your local STMicroelectronics sales office. www.st.com LDK320 Diagram 1 Diagram Figure 1. Block diagram (fixed version) VIN VOUT Bias generator OP-AMP EN Enable Bandgap reference Thermal protection Current limit GND GIPD030820151330MT Figure 2. Block diagram (adjustable version) VIN VOUT Bias generator OP-AMP EN Enable ADJ Bandgap reference Thermal protection Current limit GND DS11321 - Rev 9 page 2/32 LDK320 Pin configuration 2 Pin configuration Figure 3. Pin connection (top view) 5 1 2 4 3 SOT-89 (D configuration) SOT-89 SOT23-5L GIPD030820151343MT Table 1. Pin description (SOT23-5L) Pin n° Symbol 1 IN 2 GND 3 EN 4 ADJ/NC 5 OUT Function Input voltage of the LDO Common ground Enable pin logic input: low = shutdown, high = active Adjustable pin on ADJ version, not connected on fixed version Output voltage of the LDO Table 2. Pin description (SOT-89) Pin n° Symbol 1 OUT Output voltage of the LDO 2 GND Common ground 3 IN TAB GND Function Input voltage of the LDO Common ground Table 3. Pin description (SOT-89, D configuration) DS11321 - Rev 9 Pin n° Symbol 1 GND 2 IN 3 OUT TAB IN Function Common ground Input voltage of the LDO Output voltage of the LDO Input voltage of the LDO page 3/32 LDK320 Typical application 3 Typical application Figure 4. Typical application circuits VIN VI ON O FF EN VI N VI ON L D K 32 0 CI N 1 µF VO U T VO O FF CO U T G ND 1 µF VO U T VO E N L D K 32 0 R1 CI N 1 µF G ND CO U T ADJ 1 µF R2 VO= V A D J (1+R1/R2) F ix e d output volta ge ve rs ion Adjustable output voltage version GIPD030820151358MT Note: DS11321 - Rev 9 Adjustable version and enable pin are not available on SOT-89 package. page 4/32 LDK320 Maximum ratings 4 Maximum ratings Table 4. Absolute maximun ratings Symbol VIN Parameter DC input voltage Value Unit - 0.3 to 20 V VOUT DC output voltage - 0.3 to VI + 0.3 V VEN Enable input voltage - 0.3 to VI + 0.3 V VADJ ADJ pin voltage - 0.3 to 2 V IOUT Output current Internally limited mA PD (1) Power dissipation Internally limited mW TSTG Storage temperature range - 65 to 150 °C TOP Operating junction temperature range - 40 to 125 °C 1. Maximum power dissipation must be calculated by taking into account the package and thermal performance. Note: 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 5. Thermal data Symbol DS11321 - Rev 9 Parameter SOT23-5L SOT-89 Unit RthJA Thermal resistance junction-ambient 160 110 °C/W RthJC Thermal resistance junction-case 68 15 °C/W page 5/32 LDK320 Electrical characteristics 5 Electrical characteristics TJ = 25 °C, VIN = VOUT(NOM) + 1 V, CIN = COUT = 1 μF, IOUT = 1 mA, VEN = VIN, unless otherwise specified. Table 6. LDK320 electrical characteristics (fixed output version) Symbol VIN Parameter Max. Unit 2.5 18 V TJ = 25 °C -2 2 % -40 °C < TJ < 125 °C -3 3 % TJ = 25 °C -0.5 0.5 % -40 °C < TJ < 125 °C -1.5 1.5 % 0.001 0.05 %/V 10 15 mV 0.001 0.003 %/mA 10 25 mV 0.001 0.004 %/mA 350 mV Operating input voltage VOUT accuracy VOUT VOUT accuracy, LDK320A ΔVOUT Test conditions Static line regulation VOUT +1 V ≤ VIN ≤ 18 V IOUT = 1 mA to 200 mA, ΔVOUT Static load regulation (SOT23-5L) VOUT ≤ 2 V IOUT = 1 mA to 200 mA, VOUT > 2 V IOUT = 1 mA to 200 mA, ΔVOUT Static load regulation (SOT-89) VOUT ≤ 2 V IOUT = 1 mA to 200 mA, VOUT > 2 V IOUT = 100 mA, VDROP Dropout voltage (1) VOUT = 3.3 V IOUT = 200 mA, VOUT = 3.3 V 40 °C < TJ < 125 °C eN Output noise voltage 10 Hz to 100 kHz, IOUT = 10 mA f = 120 Hz, IOUT = 10 mA, VOUT = 3.3 V SVR Supply voltage rejection f = 1 kHz IOUT = 10 mA, VOUT = 3.3 V f = 10 kHz, IOUT= 10 mA VOUT = 3.3 V Min. Typ. 100 200 μVRMS/V 63 88 65 dB 48 VOUT +1 V VIN 18 V, IOUT = 0 mA, 60 90 70 100 VIN input current in OFF mode: VEN = GND TJ = 25 °C 0.2 1 RL = 0 330 RL = 0, VIN = 16 V 200 -40 °C < TJ < 125 °C IQ Quiescent current VIN = VOUT +1 V IOUT = 200 mA, -40 °C < TJ < 125 °C ISC DS11321 - Rev 9 Short-circuit current μA mA page 6/32 LDK320 Electrical characteristics Symbol Parameter Enable input logic low VEN Enable input logic high IEN TSHDN COUT Enable pin input current Test conditions Min. Typ. VIN = 2.5 V to 18 V, VIN = 2.5 V to 18 V, -40 °C < TJ < 125 °C V 1.2 VEN = VIN 0.1 160 Hysteresis 20 Capacitance (see Section 6 Typical characteristics) Unit 0.4 -40 °C < TJ < 125 °C Thermal shutdown Output capacitor Max. 1 100 nA °C 22 µF 1. Dropout voltage is the input-to-output voltage difference at which the output voltage is 100 mV below its nominal value. TJ = 25 °C, VIN = 2.5 V, CIN = COUT = 1 μF, IOUT = 1 mA, VEN = VIN, unless otherwise specified. DS11321 - Rev 9 page 7/32 LDK320 Electrical characteristics Table 7. LDK320 electrical characteristics (ADJ version) Symbol VIN Parameter Operating input voltage Adjustable voltage Adjustable voltage accuracy VADJ Test conditions Adjustable voltage, LDK320A Adjustable voltage accuracy, LDK320A Min. Typ. 2.5 TJ = 25 °C Max. Unit 18 V 1.185 V TJ = 25 °C -2 +2 40 °C < TJ < 125 °C -3 +3 TJ = 25 °C 1.2 % V TJ = 25 °C -0.5 +0.5 40 °C < TJ < 125 °C -1.5 +1.5 % ΔVOUT Static line regulation VOUT + 1 V ≤ VIN ≤ 18 V 0.001 0.05 %/V ΔVOUT Static load regulation IOUT = 1 mA to 200 mA 0.0002 0.003 %/mA IOUT = 100 mA, VOUT = 3.3 V VDROP Dropout voltage (1) 100 IOUT = 200 mA, VOUT = 3.3 V 200 40 °C < TJ < 125 °C eN IADJ Output noise voltage 10 Hz to 100 kHz IOUT = 10 mA Adjust pin current 1 μA 83 VOUT = VADJ Supply voltage rejection mV μVRMS 60 f = 120 Hz IOUT = 10 mA, SVR 350 f = 1 kHz IOUT = 10 mA, 73 VOUT = VADJ f = 10 kHz IOUT = 10 mA, dB 58 VOUT = VADJ VOUT +1 V ≤ VIN ≤ 18 V, IOUT = 0 mA, 50 90 60 100 VIN input current in OFF mode: VEN = GND, TJ = 25 °C 0.2 1 RL = 0 330 RL = 0, VIN = 16 V 200 -40 °C < TJ < 125 °C IQ Quiescent current VIN = VOUT + 1 V, μA IOUT = 200 mA, -40 °C < TJ < 125 °C ISC Short-circuit current Enable input logic low VEN Enable input logic high IEN TSHDN DS11321 - Rev 9 Enable pin input current VIN = 2.5 V to 18 V, 0.4 -40 °C < TJ < 125 °C VIN = 2.5 V to 18 V, -40 °C < TJ < 125 °C VEN = VIN mA V 1.2 0.1 Thermal shutdown 160 Hysteresis 20 100 nA °C page 8/32 LDK320 Electrical characteristics Symbol COUT DS11321 - Rev 9 Parameter Output capacitor Test conditions Capacitance (see Section 6 Typical characteristics) Min. 1 Typ. Max. Unit 22 μF page 9/32 LDK320 Typical characteristics 6 Typical characteristics Unless otherwise specified: TJ = 25 °C, VIN = VOUT(NOM) + 1 V, CIN = COUT = 1 μF. Figure 6. Output voltage vs. temperature (VIN = 2.5 V, VOUT = VADJ, IOUT = 200 mA) 1.24 1.24 1.22 1.22 1.2 1.2 Output Voltage voltage [V] Output voltage [V] Figure 5. Output voltage vs. temperature (VIN = 2.5 V, VOUT = VADJ, IOUT = 1 mA) 1.18 1.16 1.18 1.16 1.14 -40 -25 0 25 55 85 1.14 125 -40 -25 0 Temperature [ °C] 25 55 85 125 Temperature [ °C] GIPD040820151207MT Figure 7. Output voltage vs. temperature (VIN = 4.3 V, VOUT = 3.3 V, IOUT = 1 mA) GIPD040820151208MT Figure 8. Output voltage vs. temperature (VIN = 4.3 V, VOUT = 3.3 V, IOUT = 200 mA) 3.37 3.37 3.35 Output Voltage [V] Output Voltage [V] 3.35 3.33 3.33 3.31 3.31 3.29 3.29 3.27 -40 3.27 -40 -25 0 25 55 85 125 Temperature [ °C] GIPD040820151209MT DS11321 - Rev 9 -25 0 25 55 85 125 Temperature [ °C] GIPD040820151210MT page 10/32 LDK320 Typical characteristics Figure 10. Line regulation vs. temperature (VIN = 2.5 to 18 V, VOUT = VADJ, IOUT = 1 mA) 0.3 0.3 0.25 0.25 Line Regulation [% / V] Line Regulation [% / V] Figure 9. Line regulation vs. temperature (VIN = 4.3 to 18 V, VOUT = 3.3 V, IOUT = 1 mA) 0.2 0.15 0.1 0.2 0.15 0.1 0.05 0.05 0 0 -40 -25 0 25 55 85 -40 125 -25 0 25 55 GIPD040820151211MT Figure 11. Load regulation vs. temperature (VIN = 4.3 V, VOUT = 3.3 V, IOUT = 1 to 200 mA) 125 GIPD040820151212MT Figure 12. Load regulation vs. temperature (VIN = 2.5 V, VOUT = VADJ, IOUT = 1 to 200 mA) 0.01 0.005 0.008 0.004 Load Regulation [% / mA] Load Regulation [% / mA] 85 Temperature [ °C] Temperature [ °C] 0.006 0.004 0.002 0.003 0.002 0.001 0 -40 -25 0 25 55 85 0 125 -40 -25 0 Temperature [ °C] 25 55 85 125 Temperature [ °C] GIPD040820151213MT GIPD040820151214MT Figure 13. Enable thresholds vs. temperature (IOUT = 1 mA) Figure 14. Dropout voltage vs. temperature 300 1 275 0.9 VENL 250 VENH 225 IOUT =100mA [mV] 200 0.7 VDROP VEN Enable [V] 0.8 0.6 IOUT =200mA 175 150 125 100 75 0.5 50 0.4 25 0 -40 0.3 -40 -25 0 25 55 85 125 Temperature [ °C] GIPD040820151215MT DS11321 - Rev 9 -25 0 25 55 85 125 Temperature [ °C] GIPD040820151216MT page 11/32 LDK320 Typical characteristics Figure 15. Quiescent current vs. input voltage (IOUT = 1 mA) Figure 16. Quiescent current vs. temperature (IOUT = 1 mA) 120 100 110 T=-40°C 100 T=25°C 70 80 60 70 Iq [uA] Iq [uA] VIN =10V VIN =18V 80 T=125°C 90 VIN =4.3V 90 60 50 50 40 40 30 30 20 20 10 10 0 0 2.5 10 -40 18 -25 0 VIN [V] 25 55 85 GIPD040820151217MT GIPD040820151218MT Figure 17. Quiescent current vs. output current (VIN = 4.3 V) Figure 18. Quiescent current vs. temperature (IOUT = 200 mA) 100 100 T=-40°C 90 90 VIN =4.3V T=25°C 80 80 T=125°C 70 70 60 60 Iq [uA] Iq [uA] 125 Temperature [°C] 50 50 40 40 30 30 20 20 10 10 0 0 1 100 200 -40 -25 0 25 55 85 125 Temperature [°C] IOUT [mA] GIPD040820151220MT GIPD040820151219MT Figure 19. Off-state current vs. temperature Figure 20. Short-circuit current vs. temperature (VIN = 4.3 V) 0.4 0.38 0.36 0.34 ISC 0.32 0.3 0.28 0.26 0.24 0.22 0.2 -40 -25 0 25 Temperature [°C] DS11321 - Rev 9 55 85 125 GIPD040820151222MT page 12/32 LDK320 Typical characteristics Figure 21. Dropout voltage vs. IOUT Figure 22. Short-cicuit current vs. drop voltage 0.4 500 T=-40°C 0.35 T=25°C 400 0.3 0.25 300 ISC [A] VDROP [mV] T=125°C 200 0.2 0.15 0.1 100 0.05 0 0 1 100 0 200 IOUT [mA] 2 4 6 8 10 12 14 VDROP [V] GIPD040820151223MT Figure 23. SVR vs. frequency 16 18 20 GIPD040820151224MT Figure 24. Output noise spectral density T = 25 °C, IOUT =10 mA, for VOUT = 3.3 V then VIN= 3.8 to 4.3 V, for VOUT = VADJ then VIN = 2.5 to 3 V VIN = VOUT+1 V, IOUT =10 mA, CIN = COUT = 1μ F, T = 25 °C 20 100 90 80 Vout=3.3V Vout=3.3V eN [uV/SQRT(Hz)] SVR [dB] Vout=Vadj 15 Vout=Vadj 70 60 50 40 10 30 5 20 10 0 100 1000 10000 0 10.0 100000 100.0 1000.0 Frequency [Hz] Figure 25. Stability plan (VOUT = 3.3 V) ESR@100KHz [Ω] ESR@100 KHz [ Ω] 1 0.1 0.01 4.7 10 COUT [uF] (nominal value) 22 GIPD040820151227MT DS11321 - Rev 9 Figure 26. Stability plan (VOUT = VADJ) IOUT from 10 mA to 0.2 A for VIN = 2.5V, IOUT = 0.18 A for VIN = 18 V, CIN=1 μF, T = 25 °C IOUT from 10 mA to 0.2 A for VIN = 4.3 V, IOUT = 0.18 A for VIN = 18 V, CIN = 1 μF, T = 25 °C 2.2 100000.0 GIPD040820151226MT GIPD040820151225MT 1 10000.0 Frequency [Hz] 1 0.1 0.01 1 2.2 4.7 10 22 COUT [uF] (nominal value) GIPD040820151228MT page 13/32 LDK320 Typical characteristics Figure 27. Startup with enable (VOUT = 3.3 V) VIN = 4.3 V, VEN = from 0 to Vin, IOUT = 200 mA, CIN = COUT = 1 μF trise = tfall = 1 μs Figure 28. Startup with enable (VOUT = VADJ) VIN = 18 V, VEN = from 0 to Vin, IOUT =200 mA, CIN = COUT =1 μF trise = tfall = 1 μs Ch1=VEN Ch1=VEN Ch2=VOUT Ch2=VOUT GIPD040820151229MT Figure 29. Turn-on time (VOUT = 3.3 V) VIN = VEN = from 0 to 4.3 V, IOUT = 200 mA, CIN = COUT = 1 μF, Trise = 1 μs GIPD040820151230MT Figure 30. Turn-on time (VOUT = VADJ) VIN = VEN = from 0 to 18 V, IOUT = 200 mA VOUT = VREF, CIN = COUT = 1 μF Trise = 5 μs Ch1=VIN Ch1=VIN Ch2=VOUT Ch2=VOUT GIPD040820151231MT Figure 31. Line transient (VOUT = 3.3 V, rise) VIN = VEN = from 4.3 to 8.3 V, IOUT = 10 mA, CIN = COUT = 1 μF Trise = 5 μs GIPD040820151232MT Figure 32. Line transient (VOUT = 3.3 V, fall) VIN = VEN = from 4.3 to 8.3 V, IOUT =10 mA, CIN = COUT =1 μF Tfall = 5 μs Ch1=VIN Ch1=VIN Ch2=VOUT Ch2=VOUT GIPD040820151233MT DS11321 - Rev 9 GIPD040820151234MT page 14/32 LDK320 Typical characteristics Figure 33. Load transient (VOUT = 3.3 V, rise) VIN = VEN = 4.3 V, IOUT = from 1 to 200 mA, CIN = COUT = 1 μF Trise = 5 μs Figure 34. Load transient (VOUT = VADJ, fall) VIN = VEN = 2.5 V, IOUT = from 1 to 200 mA, CIN = COUT = 1 μF Trise - Tfall = 5 μs Ch2=VOUT Ch4=IOUT Ch1=VOUT Ch4=IOUT GIPD040820151236MT DS11321 - Rev 9 GIPD040820151237bMT page 15/32 LDK320 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 SOT23-5L package information Figure 35. SOT23-5L package outline (option A) DS11321 - Rev 9 page 16/32 LDK320 SOT23-5L package information Table 8. SOT23-5L mechanical data (option A) Dimensions (mm) DS11321 - Rev 9 Symbol Min. Nom. Max. A - - 1.25 A1 0.04 - 0.10 A2 1.00 1.10 1.20 b 0.33 - 0.41 b1 0.32 0.35 0.38 c 0.15 - 0.19 c1 0.14 0.15 0.16 D 2.82 2.92 3.02 E 2.60 2.80 3.00 E1 1.50 1.60 1.70 e 0.95 BSC e1 1.90 BSC L 0.30 Θ 0° - 0.60 8° page 17/32 LDK320 SOT23-5L package information 7.2 SOT23-5L package information Figure 36. SOT23-5L package outline (option B) DS11321 - Rev 9 page 18/32 LDK320 SOT23-5L package information Table 9. SOT23-5L package mechanical data (option B) Dim. mm Min. Typ. Max. A 0.90 1.45 A1 0 0.15 A2 0.90 1.30 b 0.30 0.50 c 0.14 0.20 c1 0.14 0.15 D 2.90 BSC E 2.80 BSC E1 1.60 BSC e 0.95 BSC e1 1.90 BSC L 0.30 0.55 L2 0.25 N 5 θ 0.16 0° 8° Tolerance aaa 0.15 bbb 0.20 ccc 0.10 ddd 0.20 eee 0.08 Figure 37. SOT23-5L recommended footprint Note: DS11321 - Rev 9 Dimensions are in mm page 19/32 LDK320 SOT23-5L packing information 7.3 SOT23-5L packing information Figure 38. SOT23-5L tape and reel outline Table 10. SOT23-5L tape and reel mechanical data Dim. mm Min. Typ. A 180 C 12.8 D 20.2 N 60 13.0 T DS11321 - Rev 9 Max. 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 page 20/32 LDK320 SOT-89 package information 7.4 SOT-89 package information Figure 39. SOT-89 package outline 7098166_REV_F DS11321 - Rev 9 page 21/32 LDK320 SOT-89 package information Table 11. SOT-89 mechanical data Dim. mm Min. Max. A 1.40 1.60 B 0.44 0.56 B1 0.36 0.48 C 0.35 0.44 C1 0.35 0.44 D 4.40 4.60 D1 1.62 1.83 D3 DS11321 - Rev 9 Typ. 0.90 E 2.29 2.60 e 1.42 1.57 e1 2.92 3.07 H 3.94 4.25 H1 2.70 3.10 K 1° 8° L 0.89 1.20 R 0.25 β 90° page 22/32 LDK320 SOT-89 package information Figure 40. SOT-89 recommended footprint Footprint DS11321 - Rev 9 page 23/32 LDK320 SOT-89 packing information 7.5 SOT-89 packing information Figure 41. SOT-89 carrier tape outline 7111762_5 Figure 42. SOT-89 device orientation DS11321 - Rev 9 page 24/32 LDK320 SOT-89 packing information Table 12. SOT-89 carrier tape mechanical data Dim. DS11321 - Rev 9 mm Value Tolerance Ao 4.91 ± 0.10 Bo 4.52 ± 0.10 Ko 1.90 ± 0.10 F 5.50 ± 0.10 E 1.75 ± 0.10 W 12 ± 0.30 P2 2 ± 0.10 Po 4 ± 0.10 P1 8 ± 0.10 T 0.30 ± 0.10 D Ø 1.55 ± 0.05 D1 Ø 1.60 ± 0.10 page 25/32 LDK320 SOT-89 packing information Figure 43. SOT-89 reel drawing DS11321 - Rev 9 page 26/32 LDK320 Ordering information 8 Ordering information Table 13. Order code SOT-89 SOT23-5L Marking Accuracy (%) LDK320AM-R ADA 0.5 LDK320M-R KAD 2 (D configuration) SOT-89 LDK320AM12R (1) LDK320M12R 0.5 (1) 2 LDK320AM15R (1) 15A 0.5 LDK320AM18R (1) 18A 0.5 LDK320M18R K18 2 LDK320AM25R 25A 0.5 LDK320M25R K25 2 LDK320AM30R 30A 0.5 30 0.5 LDK320M30R K30 2 LDK320AM33R 33A 0.5 33 0.5 LDK320M33R K33 2 LDK320AM36R 36A 0.5 LDK320AM50R 50A 0.5 50 0.5 E0 0.5 LDK320M50R K50 2 LDK320AM120R 120A 0.5 A2 0.5 LDK320ADU30R LDK320ADU33R LDK320ADU50R LDK320AU50R LDK320ADU120R LDK320M120R (1) Output voltage ADJ 1.2 1.5 1.8 2.5 3 3.3 3.6 5 12 2 1. Available on request. DS11321 - Rev 9 page 27/32 LDK320 Revision history Table 14. Document revision history Date Revision 16-Nov-2015 1 Changes First release. Document status promoted from preliminary data to production data. 01-Jun-2016 2 Updated title and features in cover page. Updated Section 8: “Ordering information”. Minor text changes. 05-Jul-2017 3 09-Oct-2018 4 Updated Section 8: "Ordering information". Minor text changes. Updated ΔVOUT test condition in Table 6. LDK320 electrical characteristics (fixed output version). Added new order code LDK320AU50R in Table 12. Order code. DS11321 - Rev 9 28-Oct-2019 5 Added ΔVOUT for SOT-89 in Table 6. LDK320 electrical characteristics (fixed output version). 23-Jul-2020 6 Updated Figure 2. Block diagram (adjustable version). 10-Nov-2020 7 Updated Table 12. Order code. 12-Nov-2020 8 Added new Marking column in Table 13. Order code. 26-Apr-2022 9 Updated Section 7.2 Added new Section 7.1 SOT23-5L package information page 28/32 LDK320 Contents Contents 1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 3 Typical application. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 4 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 5 Electrical characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 6 Typical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 7 Package information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16 8 7.1 SOT23-5L package information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 7.2 SOT23-5L package information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 7.3 SOT23-5L packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 7.4 SOT-89 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 7.5 SOT-89 packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28 List of tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30 List of figures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31 DS11321 - Rev 9 page 29/32 LDK320 List of tables List of tables Table 1. Table 2. Table 3. Table 4. Table 5. Table 6. Table 7. Table 8. Table 9. Table 10. Table 11. Table 12. Table 13. Table 14. Pin description (SOT23-5L) . . . . . . . . . . . . . . . . . . . . Pin description (SOT-89). . . . . . . . . . . . . . . . . . . . . . Pin description (SOT-89, D configuration) . . . . . . . . . . Absolute maximun ratings . . . . . . . . . . . . . . . . . . . . . Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LDK320 electrical characteristics (fixed output version) . LDK320 electrical characteristics (ADJ version) . . . . . . SOT23-5L mechanical data (option A) . . . . . . . . . . . . SOT23-5L package mechanical data (option B) . . . . . . SOT23-5L tape and reel mechanical data . . . . . . . . . . SOT-89 mechanical data. . . . . . . . . . . . . . . . . . . . . . SOT-89 carrier tape mechanical data . . . . . . . . . . . . . Order code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Document revision history . . . . . . . . . . . . . . . . . . . . . DS11321 - Rev 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 . 3 . 3 . 5 . 5 . 6 . 8 17 19 20 22 25 27 28 page 30/32 LDK320 List of figures 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. Figure 23. Figure 24. Figure 25. Figure 26. Figure 27. Figure 28. Figure 29. Figure 30. Figure 31. Figure 32. Figure 33. Figure 34. Figure 35. Figure 36. Figure 37. Figure 38. Figure 39. Figure 40. Figure 41. Figure 42. Figure 43. DS11321 - Rev 9 Block diagram (fixed version) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Block diagram (adjustable version) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pin connection (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Typical application circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Output voltage vs. temperature (VIN = 2.5 V, VOUT = VADJ, IOUT = 1 mA) . . . . . . Output voltage vs. temperature (VIN = 2.5 V, VOUT = VADJ, IOUT = 200 mA) . . . . Output voltage vs. temperature (VIN = 4.3 V, VOUT = 3.3 V, IOUT = 1 mA) . . . . . . Output voltage vs. temperature (VIN = 4.3 V, VOUT = 3.3 V, IOUT = 200 mA) . . . . Line regulation vs. temperature (VIN = 4.3 to 18 V, VOUT = 3.3 V, IOUT = 1 mA) . Line regulation vs. temperature (VIN = 2.5 to 18 V, VOUT = VADJ, IOUT = 1 mA) . . Load regulation vs. temperature (VIN = 4.3 V, VOUT = 3.3 V, IOUT = 1 to 200 mA) Load regulation vs. temperature (VIN = 2.5 V, VOUT = VADJ, IOUT = 1 to 200 mA) Enable thresholds vs. temperature (IOUT = 1 mA) . . . . . . . . . . . . . . . . . . . . . . Dropout voltage vs. temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Quiescent current vs. input voltage (IOUT = 1 mA) . . . . . . . . . . . . . . . . . . . . . . Quiescent current vs. temperature (IOUT = 1 mA) . . . . . . . . . . . . . . . . . . . . . . Quiescent current vs. output current (VIN = 4.3 V) . . . . . . . . . . . . . . . . . . . . . . Quiescent current vs. temperature (IOUT = 200 mA) . . . . . . . . . . . . . . . . . . . . Off-state current vs. temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Short-circuit current vs. temperature (VIN = 4.3 V) . . . . . . . . . . . . . . . . . . . . . Dropout voltage vs. IOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Short-cicuit current vs. drop voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SVR vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Output noise spectral density . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Stability plan (VOUT = 3.3 V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Stability plan (VOUT = VADJ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Startup with enable (VOUT = 3.3 V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Startup with enable (VOUT = VADJ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Turn-on time (VOUT = 3.3 V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Turn-on time (VOUT = VADJ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Line transient (VOUT = 3.3 V, rise) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Line transient (VOUT = 3.3 V, fall) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Load transient (VOUT = 3.3 V, rise) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Load transient (VOUT = VADJ, fall) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SOT23-5L package outline (option A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SOT23-5L package outline (option B) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SOT23-5L recommended footprint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SOT23-5L tape and reel outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SOT-89 package outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SOT-89 recommended footprint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SOT-89 carrier tape outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SOT-89 device orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SOT-89 reel drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 . 2 . 3 . 4 10 10 10 10 11 11 11 11 11 11 12 12 12 12 12 12 13 13 13 13 13 13 14 14 14 14 14 14 15 15 16 18 19 20 21 23 24 24 26 page 31/32 LDK320 IMPORTANT NOTICE – 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 acknowledgment. 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. For additional information about ST trademarks, refer to www.st.com/trademarks. 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. © 2022 STMicroelectronics – All rights reserved DS11321 - Rev 9 page 32/32