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| LK115XX30 LK115XX33 - LK115XX50 Very low drop with inhibit voltage regulators Features Very low dropout voltage (0.2 V typ.) Very low quiescent current (Typ. 0.01 A in off mode, 280 A in on mode) Output current up to 100 mA Two logic-controlled electronic shutdowns Output voltages of 3.0; 3.3; 5.0 V Internal current and thermal limit Only 2.2 F for stability VOUT tolerance 3 % at 25 C Supply voltage rejection: 80 dB (typ) Temperature range: -40 C to 125 C It requires only a 2.2 F capacitor for stability allowing space and cost saving. SO-8 Description The LK115XX series are very low drop regulators available in SO-8 package and in a wide range of output voltages. The very low drop voltage (0.2 V) and the very low quiescent current (0.01 A in OFF MODE, 280 A in ON MODE) make them particularly suitable for low noise, low power applications and specially in battery powered systems. 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. Table 1. Device summary Order codes LK115D30-TR LK115D33-TR LK115D50-TR Output voltages 3V 3.3 V 5V July 2008 Rev 4 1/14 www.st.com 14 Contents LK115XX30 - LK115XX33 - LK115XX50 Contents 1 2 3 4 5 6 7 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Test circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 2/14 LK115XX30 - LK115XX33 - LK115XX50 Diagram 1 Figure 1. Diagram Schematic diagram 3/14 Pin configuration LK115XX30 - LK115XX33 - LK115XX50 2 Figure 2. Pin configuration Pin connection (top view) Table 2. Truth table ON/OFF (Pin 2) H H L L ON/OFF (Pin 3) L H L H Status ON OFF OFF NOT ALLOWED Note: Logic levels are those defined in the electrical characteristics. 4/14 LK115XX30 - LK115XX33 - LK115XX50 Maximum ratings 3 Table 3. Maximum ratings Absolute maximum ratings Parameter DC input voltage Output current Power dissipation Storage temperature range Operating junction temperature range Value 20 Internally limited Internally limited -40 to 150 -40 to 125 C C Unit V Symbol VI IO PTOT TSTG TOP Note: Absolute maximum ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied. 5/14 Test circuits LK115XX30 - LK115XX33 - LK115XX50 4 Figure 3. Test circuits Supply current (On mode) Figure 4. Supply current (Off mode) Note: The switch emulates the two possibilities to set the regulator in OFF mode. 6/14 LK115XX30 - LK115XX33 - LK115XX50 Electrical characteristics 5 Table 4. Symbol VO VI Iout VO VO Electrical characteristics Electrical characteristics for LK115D30 (refer to the test circuits, TJ = 25 C, CI = 0.1 F, CO = 2.2 F unless otherwise specified.) Parameter Output voltage Operating input voltage Output current limit Line regulation Load regulation Quiescent current (On Mode) (Off Mode) VI = 4 to 20 V, IO = 0.5 mA VI = 4 V, IO = 0.5 to 100 mA VI = 4 to 20 V, IO = 0 VI = 4 to 20 V, IO = 100 mA VI = 4 to 20 V f = 120 Hz SVR Supply voltage rejection IO = 5 mA VI = 5 V 1V f = 1 kHz f = 10 kHz eN Vd VHIc Output noise voltage (RMS) Dropout voltage ON/OFF Control (pin 2) Pin 3 to GND, ON ON/OFF Control (pin 3) Output bypass capacitance Pin 2 to Vin, OFF Pin 2 to Vin, ON ESR = 0.5 to 10 , IO = 0 to 100 mA 2.4 Vin-0.2 0 2 10 Vin Vin Vin-2.4 F V B = 10 Hz to 100 kHz IO = 60 mA Pin 3 to GND, OFF 0 Test conditions IO = 10 mA, VI = 5 V IO = 10 mA, VI = 5 V, Ta= -40 to 125C IO = 100 mA 120 200 2 4 0.28 1.5 0.01 79 74 57 66 0.17 0.5 V V V dB 10 20 0.5 mA 3 2 A Min. 2.910 2.850 Typ. 3 Max. 3.090 V 3.150 20 V mA mV mV Unit Id VLIc CO 7/14 Electrical characteristics Table 5. Symbol VO VI Iout VO VO LK115XX30 - LK115XX33 - LK115XX50 Electrical characteristics for LK115D33 (refer to the test circuits, TJ = 25 C, CI = 0.1 F, CO = 2.2 F unless otherwise specified.) Parameter Output voltage Operating input voltage Output current limit Line regulation Load regulation Quiescent current (On Mode) (Off Mode) VI = 4.3 to 20 V, IO = 0.5 mA VI = 4.3 V, IO = 0.5 to 100 mA VI = 4.3 to 20 V, IO = 0 VI = 4.3 to 20 V, IO = 100 mA VI = 4.3 to 20 V f = 120 Hz IO = 5 mA VI = 5.3 V 1V Test conditions IO = 10 mA, VI = 5.3 V IO = 10 mA, VI = 5.3 V, Ta= -40 to 125C IO = 100 mA 120 200 2 4 0.28 1.5 0.01 79 74 57 72.6 0.17 0 2.4 Vin-0.2 0 2 10 0.5 V Pin 3 to GND, ON ON/OFF Control (pin 3) Output bypass capacitance Pin 2 to Vin, OFF Pin 2 to Vin, ON ESR = 0.5 to 10, IO = 0 to 100 mA Vin Vin Vin-2.4 F V V V dB 10 20 0.5 mA 3 2 A Min. 3.2 3.135 Typ. 3.3 Max. 3.4 V 3.465 20 V mA mV mV Unit Id SVR Supply voltage rejection f = 1 kHz f = 10 kHz eN Vd VHIc Output noise voltage (RMS) Dropout voltage ON/OFF Control (pin 2) B = 10 Hz to 100 kHz IO = 60 mA Pin 3 to GND, OFF VLIc CO 8/14 LK115XX30 - LK115XX33 - LK115XX50 Table 6. Symbol VO VI Iout VO VO Electrical characteristics Electrical characteristics for LK115D50 (refer to the test circuits, TJ = 25 C, CI = 0.1 F, CO = 2.2 F unless otherwise specified.) Parameter Output voltage Operating input voltage Output current limit Line regulation Load regulation Quiescent current (On Mode) (Off Mode) VI = 6 to 20 V, IO = 0.5 mA VI = 6 V, IO = 0.5 to 100 mA VI = 6 to 20 V, IO = 0 VI = 6 to 20 V, IO = 100 mA VI = 6 to 20 V f = 120 Hz IO = 5 mA VI = 7 V 1V Test conditions IO = 10 mA, VI = 7 V IO = 10 mA, VI = 7 V, Ta= -40 to 125C IO = 100 mA 120 200 3 4 0.28 1.5 0.01 75 70 55 110 0.17 0 2.4 Vin-0.2 0 2 10 0.5 V Pin 3 to GND, ON ON/OFF Control (pin 3) Output bypass capacitance Pin 2 to Vin, OFF Pin 2 to Vin, ON ESR = 0.5 to 10, IO = 0 to 100 mA Vin Vin Vin-2.4 F V V V dB 15 20 0.5 mA 3 2 A Min. 4.85 4.75 Typ. 5 Max. 5.15 V 5.25 20 V mA mV mV Unit Id SVR Supply voltage rejection f = 1 kHz f = 10 kHz eN Vd VHIc Output noise voltage (RMS) Dropout voltage ON/OFF Control (pin 2) B = 10 Hz to 100 kHz IO = 60 mA Pin 3 to GND, OFF VLIc CO 9/14 Package mechanical data LK115XX30 - LK115XX33 - LK115XX50 6 Package mechanical data In order to meet environmental requirements, ST offers these devices in ECOPACK(R) packages. These packages have a lead-free second level interconnect. The category of second Level Interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com. 10/14 LK115XX30 - LK115XX33 - LK115XX50 Package mechanical data SO-8 mechanical data Dim. A A1 A2 B C D E e H h L k ddd 0.1 5.80 0.25 0.40 mm. Min. 1.35 0.10 1.10 0.33 0.19 4.80 3.80 1.27 6.20 0.50 1.27 8 (max.) 0.04 0.228 0.010 0.016 Typ. Max. 1.75 0.25 1.65 0.51 0.25 5.00 4.00 Min. 0.053 0.04 0.043 0.013 0.007 0.189 0.150 0.050 0.244 0.020 0.050 inch. Typ. Max. 0.069 0.010 0.065 0.020 0.010 0.197 0.157 0016023/C 11/14 Package mechanical data LK115XX30 - LK115XX33 - LK115XX50 Tape & reel SO-8 mechanical data mm. Dim. Min. A C D N T Ao Bo Ko Po P 8.1 5.5 2.1 3.9 7.9 12.8 20.2 60 22.4 8.5 5.9 2.3 4.1 8.1 0.319 0.216 0.082 0.153 0.311 Typ. Max. 330 13.2 0.504 0.795 2.362 0.882 0.335 0.232 0.090 0.161 0.319 Min. Typ. Max. 12.992 0.519 inch. 12/14 LK115XX30 - LK115XX33 - LK115XX50 Revision history 7 Table 7. Date Revision history Document revision history Revision 3 4 Order codes updated. Added Table 1 on page 1. Changes 07-Jun-2006 07-Jul-2008 13/14 LK115XX30 - LK115XX33 - LK115XX50 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. Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no liability whatsoever relating to the choice, selection or use of the ST products and services described herein. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. If any part of this document refers to any third party products or services it shall not be deemed a license grant by ST for the use of such third party products or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoever of such third party products or services or any intellectual property contained therein. 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