Datasheet

ManualsBrandsST ManualsIntegrated Circuits (ICs)LDO Voltage Regulator 3.3V 200mA SOT-23

Features

• Input voltage from 2.5 to 13.2 V

• Very low-dropout voltage (100 mV typ. @ 100 mA load)

• Low quiescent current (typ. 55 µA, 1 µA in off mode)

• Low noise

• Output voltage tolerance: ± 2.0% @ 25 °C

• 200 mA guaranteed output current

• 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

• Output discharge function

• Compatible with ceramic capacitor C

OUT

= 1 µF

• Internal current and thermal limit

• Available in SOT23-5L, SOT323-5L, SOT-89 and DFN6-1.2x1.3 packages

• Temperature range: -40 °C to 125 °C

Applications

• Battery-powered equipment

• TV

• Set-top box

• PC and laptop

• Industrial

Description

The LDK220 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 13.2 V, with a typical

dropout voltage of 100 mV.

A ceramic capacitor stabilizes it on the output.

The very low drop voltage, low quiescent current and low noise make it suitable for

battery-powered applications.

The enable logic control function puts the LDK220 in shutdown mode allowing a total

current consumption lower than 1 µA.

The device also includes a short-circuit constant current limiting and thermal

protection.

Maturity status link

LDK220

200 mA low quiescent current and low noise LDO

LDK220

Datasheet

DS10219 - Rev 5 - December 2019

For further information contact your local STMicroelectronics sales office.

www.st.com

Summary of content (27 pages)

PAGE 1
LDK220 Datasheet 200 mA low quiescent current and low noise LDO Features • • • • • • • • • • Input voltage from 2.5 to 13.2 V Very low-dropout voltage (100 mV typ. @ 100 mA load) Low quiescent current (typ. 55 µA, 1 µA in off mode) Low noise Output voltage tolerance: ± 2.0% @ 25 °C 200 mA guaranteed output current Wide range of output voltages available on request: fixed from 1.
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LDK220 Diagram 1 Diagram Figure 1. Block diagram (fixed version) VIN VOUT Bias generator OPAMP EN Enable Thermal protection Bandgap reference Current limit (*) GND Figure 2. Block diagram (adjustable version) VOUT VIN Bias generator OPAMP EN ADJ Enable Thermal protection Bandgap reference Current limit (*) GND (*) The device embeds autodischarge function (active when Enable in low).
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LDK220 Pin configuration 2 Pin configuration Figure 3. Pin connections (top view) 5 1 2 4 3 1 6 2 5 3 4 SOT-89 DFN6-1.2x1.3 SOT23-5L SOT323-5L GIPD220120161007MT Table 1. Pin description (SOT23-5L, SOT323-5L) 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. EN cannot be left floating. Adjustable pin on ADJ version, not connected on fixed version Output voltage of the LDO Table 2.
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LDK220 Typical application 3 Typical application Figure 4. Typical application circuits VIN VI ON OFF EN VIN VI ON L DK 220 CIN 1µF VOUT VO OFF COUT G ND 1µF EN VOUT VO L DK 220 R1 CIN 1µF G ND COUT ADJ 1µF R2 V O =V AD J (1+R1/R2) Fixed output voltage vers ion Adjustable output voltage vers ion GIPD220120161056MT Note: DS10219 - Rev 5 Adjustable version and enable pin are not available on the SOT-89 package.
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LDK220 Maximum ratings 4 Maximum ratings Table 4. Absolute maximum ratings Symbol VIN Parameter DC input voltage Value Unit - 0.3 to 14 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 500 mW TSTG Storage temperature range - 65 to 150 °C TOP Operating junction temperature range - 40 to 125 °C 1.
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LDK220 Electrical characteristics 5 Electrical characteristics Table 6. LDK220 electrical characteristics for fixed output version. TJ = 25 °C, VIN = VOUT(NOM) + 1 V, CIN = COUT = 1 μF, IOUT = 1 mA, VEN = VIN, unless otherwise specified. Symbol Parameter VIN Operating input voltage VOUT VOUT accuracy Test conditions Min. Typ. Max. Unit 2.5 13.2 V IOUT = 1 mA, TJ = 25 °C -2 2 % IOUT = 1 mA, -40 °C < TJ < 125 °C -3 3 % ΔVOUT Static line regulation VOUT + 1 V ≤ VIN ≤ 13.
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LDK220 Electrical characteristics Table 7. LDK220 electrical characteristics for adjustable version. TJ = 25 °C, VIN = VOUT(NOM) + 1 V, CIN = COUT = 1 μF, IOUT = 1 mA, VEN = VIN, unless otherwise specified. Symbol VIN Parameter Operating input voltage Adjustable voltage VADJ Test conditions Adjustable voltage accuracy Min. Typ. 2.5 TJ = 25 °C Max. Unit 13.2 V 1.185 V TJ = 25 °C -2 +2 40 °C < TJ < 125 °C -3 +3 % ΔVOUT Static line regulation VOUT +1 V ≤ VIN ≤ 13.2 V IOUT=1 mA 0.
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LDK220 Typical characteristics 6 Typical characteristics (CIN = COUT = 1 μF, VEN to VIN) Figure 6. Output voltage vs. temperature (VOUT = VADJ, IOUT = 200 mA) 1.3 1.3 1.28 1.28 1.26 1.26 1.24 1.24 Output voltage [V] Output voltage [V] Figure 5. Output voltage vs. temperature (VOUT = VADJ, IOUT = 1 mA) 1.22 1.2 1.18 1.16 1.14 1.12 1.22 1.2 1.18 1.16 1.14 1.12 1.1 -40 -25 0 25 55 85 1.1 125 -40 -25 0 Temperature [°C] VIN = 2.5 V, IOUT = 1 mA 55 85 125 VIN = 2.
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LDK220 Typical characteristics Figure 12. Load regulation vs. temperature (VOUT = 3.3 V) 0.01 0.01 0.008 0.008 0.006 0.006 0.004 0.002 0 -40 -25 0 25 55 85 125 -0.002 -0.004 Load regulation [%/mA] Line regulation [%/V] Figure 11. Line regulation vs. temperature (VOUT = VADJ) 0.004 0.002 0 -40 -25 0 25 55 85 125 -0.002 -0.004 -0.006 -0.006 -0.008 -0.008 -0.01 -0.01 Temperature [°C] Temperature [°C] VOUT = VADJ, IOUT = 1 mA VOUT = 3.3 V, IOUT = 1 mA to 200 mA Figure 13.
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LDK220 Typical characteristics Figure 17. Quiescent current vs. temperature (IOUT = 200 mA) Figure 18. Off-state current vs. temperature 10 90 9 8 Quiescent current [µA] Quiescent current [µA] 80 70 Vin=2.5V 60 Vin=5V Vin=13.2V 50 7 6 5 4 3 2 40 1 0 -40 30 -40 -25 0 25 55 85 -25 0 125 Figure 19. SVR vs. frequency (VOUT = 3.3 V) 55 85 125 Figure 20. SVR vs.
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LDK220 Typical characteristics Figure 23. Startup with enable (VOUT = 3.3 V) VEN Figure 24. Startup with enable (VOUT = VADJ) VEN VOUT VOUT IOUT IOUT VIN = 4.3 V, VEN = 0 V to 2 V, IOUT = 0.2 A, VOUT = 3.3 V, Tr = Tf = 1 μs VIN = 2.5 V, VEN = 0 V to VIN, IOUT = 0.2 A, VOUT = VADJ, Tr = Tf = 1 μs GIPD250120161426MT Figure 25. Turn-on time (VOUT = 3.3 V) GIPD250120161427MT Figure 26. Turn-on time (VOUT = VADJ) VEN VOUT VIN VEN VOUT VIN VIN = VEN = 0 V to 4.3 V, IOUT = 0.2 A, VOUT = 3.
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LDK220 Typical characteristics Figure 29. Load transient (VOUT = 3.3 V) Figure 30. Load transient (VOUT = VADJ) VOUT VOUT IOUT IOUT VIN = VEN = 4.3 V, IOUT = 1 mA to 0.2 A, VOUT = 3.3 V, Tr = Tf = 5 μs GIPD250120161432MT DS10219 - Rev 5 VIN = VEN = 2.5 V, IOUT = 1 mA to 0.
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LDK220 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.
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LDK220 SOT23-5L mechanical data 7.1 SOT23-5L mechanical data Figure 31. SOT23-5L package outline 7049676_k Table 8. SOT23-5L package mechanical data Dim. DS10219 - Rev 5 mm Min. Typ. Max. A 0.90 1.45 A1 0 0.15 A2 0.90 1.30 b 0.30 0.50 c 0.09 0.20 D 2.95 E 1.60 e 0.95 H 2.80 L 0.30 0.
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LDK220 SOT23-5L mechanical data Figure 32.
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LDK220 SOT23-5L packing information 7.2 SOT23-5L packing information Figure 33. SOT23-5L tape and reel outline D A N T Po Bo Ao Ko P Table 9. SOT23-5L tape and reel mechanical data Dim. mm Min. Typ. A 180 C 12.8 D 20.2 N 60 13.0 T DS10219 - Rev 5 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.
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LDK220 SOT-89 package information 7.3 SOT-89 package information Figure 34.
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LDK220 SOT-89 package information Table 10. 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 DS10219 - Rev 5 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 0.89 120 R 0.
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LDK220 SOT-89 package information Figure 35.
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LDK220 SOT-89 packing information 7.4 SOT-89 packing information Figure 36. SOT-89 carrier tape outline 7111762_5 Table 11. SOT-89 carrier tape mechanical data Dim. DS10219 - Rev 5 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.
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LDK220 SOT323-5L package information 7.5 SOT323-5L package information Figure 37.
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LDK220 SOT323-5L package information Table 12. SOT323-5L package mechanical data Dim. mm Min. Typ. Max. A 0.80 1.10 A1 0 0.10 A2 0.80 b 0.15 0.30 c 0.10 0.22 D 1.80 2 2.20 E 1.80 2.10 2.40 E1 1.15 1.25 1.35 0.90 e 0.65 e1 1.30 L 0.26 < 0° 0.36 1 0.46 8° Figure 38.
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LDK220 DFN6 package information 7.6 DFN6 package information Figure 39.
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LDK220 DFN6 package information Table 13. DFN6 package mechanical data Dim. mm Min. Typ. Max. A 0.41 0.45 0.50 A1 0.00 0.02 0.05 D - 1.20 - E - 1.30 - e - 0.40 - b 0.15 0.18 0.25 L 0.475 0.525 0.575 L3 0.375 0.425 0.475 aaa - 0.05 - bbb - 0.10 - ccc - 0.05 - ddd - 0.05 - eee - 0.05 - Figure 40.
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LDK220 Ordering information 8 Ordering information Table 14. Order codes DS10219 - Rev 5 SOT323-5L SOT23-5L LDK220C25R SOT-89 DFN6 Output voltage (V) LDK220M25R LDK220PU25R 2.5 LDK220C27R LDK220M27R LDK220PU27R 2.7 LDK220C30R LDK220M30R LDK220PU30R 3 LDK220C32R LDK220M32R LDK220PU32R 3.2 LDK220C33R LDK220M33R LDK220U33R LDK220PU33R 3.3 LDK220C36R LDK220M36R LDK220U36R LDK220PU36R 3.
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LDK220 Revision history Table 15. Document revision history Date Revision 19-Mar-2014 1 24-Nov-2014 2 Changes Initial release. Updated the features in cover page, Table 6: LDK220 electrical characteristics for fixed output version, Table 7: LDK220 electrical characteristics for adjustable version, Table 8: SOT23-5L mechanical data, and Section 6: Typical characteristics. Minor text changes. 19-May-2015 3 Added SOT-89 package. Updated features in cover page.
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