LK115D33

LK115 Very low drop voltage regulators with inhibit Datasheet - production data Description The LK115 is a series of very low drop voltage regulators, available in SO-8 package. The very low drop voltage (0.2 V) and very low quiescent current (0.01 µA in OFF mode, 280 µA in ON mode) make it particularly suitable for low noise, low power applications and especially in battery-powered systems. SO-8 Features • Very low-dropout voltage (0.2 V typ.) • Very low quiescent current (typ. 0.01 µA in OFF mode, 280 µA in ON mode) • Output current up to 100 mA Both active high and active low shutdown logic control are available (pin 2 and 3). This means that when the device is used as a local regulator, it is possible to put a part of the board in standby, decreasing the total power consumption. It only requires a 2.2 µF capacitor for stability saving space and costs. • Two logic-controlled electronic shutdowns • Output voltages of 3.0; 3.3; 5.0 V • Internal current and thermal limit • A 2.2 µF capacitor for stability • VOUT tolerance ± 3% at 25 °C • Supply voltage rejection: 80 dB (typ.) • Temperature range: -40 °C to 125 °C Table 1. Device summary Order codes Output voltages LK115D33-TR 3.3 V LK115D50-TR 5V January 2014 This is information on a product in full production. DocID2575 Rev 5 1/14 www.st.com Contents LK115 Contents 1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 Test circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 6 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 7 Packaging mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 8 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 2/14 DocID2575 Rev 5 LK115 1 Diagram Diagram Figure 1. Schematic diagram DocID2575 Rev 5 3/14 14 Pin configuration 2 LK115 Pin configuration Figure 2. Pin connection (top view) Table 2. Truth table Note: 4/14 ON/OFF (pin 2) ON/OFF (pin 3) Status H L ON H H OFF L L OFF L H Not allowed Logic levels are those defined in the electrical characteristics. DocID2575 Rev 5 LK115 Maximum ratings 3 Maximum ratings Table 3. Absolute maximum ratings Symbol Note: Parameter Value Unit 20 V VI DC input voltage IO Output current Internally limited PTOT Power dissipation Internally limited 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. DocID2575 Rev 5 5/14 14 Test circuits 4 LK115 Test circuits Figure 3. Supply current (ON mode) Figure 4. Supply current (OFF mode) Note: 6/14 The switch emulates two possibilities to set the regulator in OFF mode. DocID2575 Rev 5 LK115 5 Electrical characteristics Electrical characteristics (Refer to test circuits, TJ = 25 °C, CI = 0.1 µF, CO = 2.2 µF unless otherwise specified) Table 4. LK115D33 electrical characteristics Symbol Parameter Test conditions IO = 10 mA, VI = 5.3 V Min. Typ. Max. 3.2 3.3 3.4 Unit VO Output voltage VI Operating input voltage Iout Output current limit ΔVO Line regulation VI = 4.3 to 20 V, IO = 0.5 mA 2 10 mV ΔVO Load regulation VI = 4.3 V, IO = 0.5 to 100 mA 4 20 mV Quiescent current (ON mode) VI = 4.3 to 20 V, IO = 0 0.28 0.5 VI = 4.3 to 20 V, IO = 100 mA 1.5 3 (OFF mode) VI = 4.3 to 20 V 0.01 2 Supply voltage rejection IO = 5 mA VI = 5.3 V ± 1 V Id SVR V IO = 10 mA, VI = 5.3 V, Ta= -40 to 125 °C 3.135 3.465 IO = 100 mA 20 120 200 V mA mA f = 120 Hz 79 f = 1 kHz 74 f = 10 kHz 57 µA dB eN Output noise voltage (RMS) B = 10 Hz to 100 kHz 72.6 µV Vd Dropout voltage IO = 60 mA 0.17 V VHIc ON/OFF control (pin 2) VLIc ON/OFF control (pin 3) CO Output bypass capacitance Pin 3 to GND, OFF 0 0.5 Pin 3 to GND, ON 2.4 Vin Pin 2 to Vin, OFF Vin-0.2 Vin Pin 2 to Vin, ON 0 Vin-2.4 ESR = 0.5 to 10 Ω, IO = 0 to 100 mA 2 V DocID2575 Rev 5 10 V µF 7/14 14 Electrical characteristics LK115 (Refer to test circuits, TJ = 25 °C, CI = 0.1 µF, CO = 2.2 µF unless otherwise specified) Table 5. LK115D50 electrical characteristics Symbol Parameter Test conditions Min. Typ. Max. IO = 10 mA, VI = 7 V 4.85 5 5.15 IO = 10 mA, VI = 7 V, Ta= -40 to 125 °C 4.75 Unit VO Output voltage VI Operating input voltage Iout Output current limit ΔVO Line regulation VI = 6 to 20 V, IO = 0.5 mA 3 15 mV ΔVO Load regulation VI = 6 V, IO = 0.5 to 100 mA 4 20 mV Quiescent current (ON mode) VI = 6 to 20 V, IO = 0 0.28 0.5 VI = 6 to 20 V, IO = 100 mA 1.5 3 (OFF mode) VI = 6 to 20 V 0.01 2 Supply voltage rejection IO = 5 mA VI = 7 V ± 1 V Id SVR V 5.25 IO = 100 mA 20 120 200 V mA mA f = 120 Hz 75 f = 1 kHz 70 f = 10 kHz 55 µA dB eN Output noise voltage (RMS) B = 10 Hz to 100 kHz 110 µV Vd Dropout voltage IO = 60 mA 0.17 V VHIc ON/OFF control (pin 2) VLIc ON/OFF control (pin 3) CO Output bypass capacitance 8/14 Pin 3 to GND, OFF 0 0.5 Pin 3 to GND, ON 2.4 Vin Pin 2 to Vin, OFF Vin-0.2 Vin Pin 2 to Vin, ON 0 Vin-2.4 ESR = 0.5 to 10 Ω, IO = 0 to 100 mA 2 V DocID2575 Rev 5 10 V µF LK115 6 Package mechanical data Package mechanical data 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. Figure 5. SO-8 drawings 0016023_Rev_G DocID2575 Rev 5 9/14 14 Package mechanical data LK115 Table 6. SO-8 mechanical data mm Dim. Min. Typ. A 1.75 A1 0.10 0.25 A2 1.25 b 0.28 0.48 c 0.17 0.23 D 4.80 4.90 5.00 E 5.80 6.00 6.20 E1 3.80 3.90 4.00 e 1.27 h 0.25 0.50 L 0.40 1.27 L1 k 1.04 0° 8° ccc 10/14 Max. 0.10 DocID2575 Rev 5 LK115 7 Packaging mechanical data Packaging mechanical data Figure 6. SO-8 tape and reel dimensions DocID2575 Rev 5 11/14 14 Packaging mechanical data LK115 Table 7. SO-8 tape and reel mechanical data mm Dim. Min. Typ. A 330 C 12.8 D 20.2 N 60 13.2 T 12/14 Max. 22.4 Ao 8.1 8.5 Bo 5.5 5.9 Ko 2.1 2.3 Po 3.9 4.1 P 7.9 8.1 DocID2575 Rev 5 LK115 8 Revision history Revision history Table 8. Document revision history Date Revision 07-Jun-2006 3 Order codes updated. 07-Jul-2008 4 Added Table 1 on page 1. 5 Changed the LK115xx30, LK115xx33, LK115xx50 to LK115. Updated the description in cover page. Updated Section 5: Electrical characteristics, Section 6: Package mechanical data. Added Section 7: Packaging mechanical data. Minor text changes. 31-Jan-2014 Changes DocID2575 Rev 5 13/14 14 LK115 Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. 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