LDK220 STMICROELECTRONICS | Alldatasheet
Document overview
- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 28
Technical content
Datasheet sections
- 1 Diagram
- 2 Pin configuration
- 3 Typical application
- 4 Maximum ratings
- 5 Electrical characteristics
- 6 Typical performance characteristics
- 7 Package information
- 7.1 SOT23-5L package information
- 7.2 SOT23-5L packing information
- 7.3 SOT-89 package information
- 7.4 SOT-89 packing information
- 7.5 SOT323-5L package information
- 8 Ordering information
- 9 Revision history
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 Compatible with ceramic capacitor COUT = 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.
1 Diagram
Figure 1: Block diagram (fixed version) Figure 2: Block diagram (adjustable version)
2 Pin configuration
Figure 3: Pin connections (top view) Table 1: Pin description (SOT23-5L, SOT323-5L) Pin n° Symbol Function
1 IN Input voltage of the LDO
2 GND Common ground
3 EN Enable pin logic input: low = shutdown, high = active
4 ADJ/NC Adjustable pin on ADJ version, not connected on fixed version
5 OUT Output voltage of the LDO
Table 2: Pin description (DFN6) Pin n° Symbol Function
1 OUT Output voltage of the LDO
2 N/C Not connected
3 ADJ/NC Adjustable pin on ADJ version, not connected in fixed version
4 EN Enable pin logic input: low = shutdown, high = active
5 GND Common ground
6 IN Input voltage of the LDO
Table 3: Pin description (SOT-89) Pin n° (1) Symbol Function
3 IN Input voltage of the LDO
Notes: (1) Adjustable version and enable pin are not available on the SOT-89 package.
LDK220 Typical application
3 Typical application
Figure 4: Typical application circuits Adjustable version and enable pin are not available on the SOT-89 package.
4 Maximum ratings
Table 4: Absolute maximum ratings Symbol Parameter Value Unit VIN DC input voltage - 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 Notes: (1) Maximum power dissipation has to be calculated taking into account the package thermal performance. 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 Parameter SOT23-5L SOT323-5L SOT-89 DFN-6 Unit RthJA Thermal resistance junction-ambient 160 246 110 237 °C/W RthJC Thermal resistance junction-case 68 134 15 104 °C/W
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: LDK220 electrical characteristics for fixed output version Symbol Parameter Test conditions Min. Typ. Max. Unit VIN Operating input voltage 2.5 13.2 V VOUT VOUT accuracy 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 ≤ 13.2 V, IOUT = 1 mA 0.001 0.05 %/V ΔVOUT Static load regulation IOUT = 1 mA to 200 mA 0.001 0.003 %/mA VDROP Dropout voltage (1) IOUT = 100 mA, VOUT = 3.3 V 100 mV IOUT = 200 mA, VOUT = 3.3 V 40 °C < TJ < 125 °C 200 350 eN Output noise voltage 10 Hz to 100 kHz, IOUT = 10 mA 20 µVRMS/V SVR Supply voltage rejection VIN = VOUTNOM+ 0.5 V+/-VRIPPLE VRIPPLE = 0.1 V frequency = 120 Hz to 1 kHz IOUT = 10 mA dB VIN = VOUTNOM + 0.5 V+/-VRIPPLE VRIPPLE = 0.1 V frequency = 10 kHz IOUT = 10 mA IQ Quiescent current VIN = VOUT +1 V IOUT = 0 mA,-40 °C < TJ < 125 °C 55 90 µA VOUT +1 V ≤ VIN ≤ 13.2 V (2) IOUT = 200 mA, -40 °C < TJ < 125 °C 60 100 VIN input current in off mode: VEN = GND, TJ = 25 °C 0.1 1 ISC Short-circuit current (2) RL = 0 400 mA VEN Enable input logic low VIN = 2.5 V to 13.2 V, -40 °C < TJ < 125 °C 0.4 V Enable input logic high VIN = 2.5 V to 13.2 V, -40 °C < TJ < 125 °C 1.2 IEN Enable pin input current VEN = VIN 0.1 100 nA
Symbol Parameter Test conditions Min. Typ. Max. Unit TSHDN Thermal shutdown 160 °C Hysteresis 20 COUT Output capacitor Capacitance (see Section 6: "Typical performance characteristics") 1 22 µF Notes: (1) Dropout voltage is the input-to-output voltage difference at which the output voltage is 100 mV below its nominal value. (2) The maximum current has to be limited according to the maximum power dissipation. TJ = 25 °C, VIN = VOUT(NOM) + 1 V, CIN = COUT = 1 μF, IOUT = 1 mA, VEN = VIN, unless otherwise specified. Table 7: LDK220 electrical characteristics for adjustable version Symbol Parameter Test conditions Min. Typ. Max. Unit VIN Operating input voltage 2.5 13.2 V VADJ Adjustable voltage TJ = 25 °C 1.185 V Adjustable voltage accuracy TJ = 25 °C -2 40 °C < TJ < 125 °C -3 ΔVOUT Static line regulation VOUT +1 V ≤ VIN ≤ 13.2 V IOUT=1 mA 0.001 0.05 %/V ΔVOUT Static load regulation IOUT = 1 mA to 200 mA 0.0002 0.003 %/mA VDROP Dropout voltage (1) IOUT = 100 mA, VOUT = 3.3 V 100 IOUT = 200 mA, VOUT = 3.3 V 40 °C < TJ < 125 °C 200 350 mV eN Output noise voltage 10 Hz to 100 kHz, IOUT = 10 mA 100 µVRMS/V IADJ Adjust pin current 1 µA SVR Supply voltage rejection VIN = VOUTNOM + 0.5 V+/-VRIPPLE VRIPPLE = 0.1 V Frequency =120 Hz to1 kHz IOUT = 10 mA dB VRIPPLE = 0.1 V VIN = VOUTNOM+0.5 V+/-VRIPPLE frequency = 10 kHz, IOUT = 10 mA
Symbol Parameter Test conditions Min. Typ. Max. Unit IQ Quiescent current VOUT +1 V ≤ VIN ≤ 13.2 V IOUT = 0 mA, -40 °C < TJ < 125 °C 55 90 µA VOUT +1 V ≤ VIN ≤ 13.2 V (2) IOUT = 200 mA, -40 °C < TJ < 125 °C 60 100 VIN input current in off mode: VEN = GND,TJ = 25 °C 0.1 1 ISC Short-circuit current (2) RL = 0 400 mA VEN Enable input logic low VIN = 2.5 V to 13.2 V -40 °C < TJ < 125 °C 0.4 V Enable input logic high VIN = 2.5 V to 13.2 V -40 °C < TJ < 125 °C 1.2 IEN Enable pin input current VEN = VIN 0.1 100 nA TSHDN Thermal shutdown 160 °C Hysteresis 20 COUT Output capacitor Capacitance (see Section 6: "Typical performance characteristics") 1 22 µF Notes: (1) Dropout voltage is the input-to-output voltage difference at which the output voltage is 100 mV below its nominal value. (2) The maximum current has to be limited according to the maximum power dissipation.
Typical performance characteristics LDK220
6 Typical performance characteristics
(CIN = COUT = 1 μF, VEN to VIN) Figure 5: Output voltage vs. temperature (VOUT = VADJ, IOUT = 1 mA) Figure 6: Output voltage vs. temperature (VOUT = VADJ, IOUT = 200 mA) Figure 7: Output voltage vs. temperature (VOUT = 3.3 V, IOUT = 1 mA) Figure 8: Output voltage vs. temperature (VOUT = 3.3 V, IOUT = 200 mA) Figure 9: Short-circuit current vs. temperature Figure 10: Line regulation vs. temperature (VOUT = 3.3 V)
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 31: SOT23-5L package outline
Table 8: SOT23-5L package mechanical data 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 0.09 0.20 D 2.95 E 1.60 e 0.95 H 2.80 L 0.30 0.60 θ 0° Figure 32: SOT23-5L recommended footprint Dimensions are in mm
7.2 SOT23-5L packing information
Figure 33: SOT23-5L tape and reel outline Table 9: SOT23-5L tape and reel mechanical data Dim. mm Min. Typ. Max. A 180 C 12.8 13.0 13.2 D 20.2 N 60 T 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 Bo Ko Ao Po P DA N T
7.3 SOT-89 package information
Figure 34: SOT-89 package outline
Table 10: SOT-89 mechanical data Dim. mm Min. Typ. 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 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° L 0.89 120 R 0.25 β 90°
Figure 35: SOT-89 recommended footprint
7.4 SOT-89 packing information
Figure 36: SOT-89 carrier tape outline Table 11: SOT-89 carrier tape mechanical data Dim. 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
7.5 SOT323-5L package information
Figure 37: SOT323-5L package outline
Table 12: SOT323-5L package mechanical data Dim. mm Min. Typ. Max. A 0.80 1.10 A1 0 0.10 A2 0.80 0.90 1 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 e 0.65 1.30 L 0.26 1.36 0.46 < 0° Figure 38: SOT323-5L recommended footprint
7.6 DFN6 1.2x1.3 package information Figure 39: DFN6 package outline
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: DFN6 recommended footprint
8 Ordering information
Table 14: Order codes SOT323-5L SOT23-5L SOT-89 DFN6 Output voltage (V) LDK220C25R LDK220M25R LDK220PU25R 2.5 LDK220C27R LDK220M27R LDK220PU27R 2.7 LDK220C30R LDK220M30R LDK220U30R LDK220PU30R 3 LDK220C32R LDK220M32R LDK220PU32R 3.2 LDK220C33R LDK220M33R LDK220U33R LDK220PU33R 3.3 LDK220C36R LDK220M36R LDK220U36R LDK220PU36R 3.6 LDK220C40R LDK220M40R LDK220PU40R 4 LDK220C50R LDK220M50R LDK220U50R LDK220PU50R 5 LDK220C-R LDK220M-R LDK220PU-R adj
9 Revision history
Table 15: Document revision history Date Revision Changes 19-Mar-2014 1 Initial release. 24-Nov-2014 2 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. Updated Section 2: Pin configuration, Section 3: Typical application, Table 5: Thermal data, Section 7: Package information and Section 8: Ordering information. Minor text changes. 24-Oct-2016 4 Updated Table 7: "LDK220 electrical characteristics for adjustable version" and Section 7: "Package information". Minor text changes.