KF25BD-TR

KFXX Very low drop voltage regulators with inhibit Datasheet - production data Description The KF series are very low drop regulators available in SO-8 and DPAK packages and in a wide range of output voltages. The very low dropout voltage (0.4 V) and the very low quiescent current make them particularly suitable for low noise, low power applications and especially in battery powered systems. SO-8 DPAK A shutdown logic control function is available (pin 5, TTL compatible). 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 requires only a 2.2 µF capacitor for stability allowing space and cost saving. Features  Very low dropout voltage (0.4 V)  Very low quiescent current (typ. 50 µA in OFF mode, 500 µA in ON mode)  Output current up to 500 mA  Logic-controlled electronic shutdown  Output voltages of 2.5; 3.3; 5; 8 V  Internal current and thermal limit  Only 2.2 µF for stability  Available in ± 2 % accuracy at 25 °C  Supply voltage rejection: 70 db (typ.)  Temperature range: - 40 to 125 °C Table 1. Device summary Order codes Output voltages SO-8 (tape and reel) DPAK (tape and reel) KF25BD-TR KF25BDT-TR 2.5 V KF33BD-TR KF33BDT-TR 3.3 V KF50BD-TR KF50BDT-TR 5V KF80BDT-TR 8V February 2018 This is information on a product in full production. DocID4337 Rev 14 1/21 www.st.com Contents KFXX Contents 1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5 Typical performance characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 6 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 7 Packaging mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 8 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 2/21 DocID4337 Rev 14 KFXX 1 Diagram Diagram Figure 1. Schematic diagram DocID4337 Rev 14 3/21 21 Pin configuration 2 KFXX Pin configuration Figure 2. Pin connections (top view) SO-8 4/21 DPAK DocID4337 Rev 14 KFXX Maximum ratings 3 Maximum ratings Table 2. Absolute maximum ratings Symbol Parameter Value Unit - 0.5 to 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 Note: Absolute maximum ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied. Table 3. Thermal data Symbol Parameter RthJC Thermal resistance junction-case RthJA Thermal resistance junction-ambient DPAK SO-8 Unit 8 20 °C/W 100 55 °C/W Figure 3. Test circuit DocID4337 Rev 14 5/21 21 Electrical characteristics 4 KFXX Electrical characteristics Refer to the test circuits, TJ = 25 °C, CI = 0.1 µF, CO = 2.2 µF unless otherwise specified. Table 4. Electrical characteristics (VO= 2.5 V) Symbol Parameter VO Output voltage VI Operating input voltage IO Output current limit Test conditions Min. Typ. Max. IO = 50 mA, VI = 4.5 V 2.45 2.5 2.55 IO= 50 mA, VI= 4.5 V, Ta = -25 to 85°C 2.4 Unit V 2.6 IO = 500 mA 20 1 V A VO Line regulation VI= 3.5 to 20 V, IO = 5 mA 2 12 mV VO Load regulation VI= 3.8 V, IO = 5 to 500 mA 2 50 mV 0.5 1 VI= 3.5 to 20V, IO = 0mA Id Quiescent current VI= 3.8 to 20V, IO=500mA VI= 6 V SVR Supply voltage rejection IO = 5 mA, VI= 4.5 ± 1 V ON MODE OFF MODE 50 f = 120 Hz 82 f = 1 kHz 77 f = 10 kHz 60 eN Output noise voltage Vd Dropout voltage VIL Control input logic low Ta = -40 to 125°C VIH Control input logic high Ta = -40 to 125°C Control input current VI= 6 V, VC= 6 V Output bypass capacitance ESR = 0.1 to 10 , IO = 0 to 500 mA II CO 6/21 mA 12 100 dB B = 10 Hz to 100 KHz 50 IO = 200 mA 0.2 0.35 IO = 500 mA 0.4 0.7 DocID4337 Rev 14 µA µV V 0.8 2 2 V V 10 µA 10 µF KFXX Electrical characteristics Refer to the test circuits, TJ = 25 °C, CI = 0.1 µF, CO = 2.2 µF unless otherwise specified. Table 5. Electrical characteristics (VO= 3.3 V) Symbol Parameter VO Output voltage VI Operating input voltage IO Output current limit Test conditions Min. Typ. Max. IO = 50 mA, VI = 5.3 V 3.234 3.3 3.366 IO= 50 mA, VI= 5.3 V, Ta = -25 to 85°C 3.168 Unit V 3.432 IO = 500 mA 20 1 V A VO Line regulation VI= 4.3 to 20 V, IO = 5 mA 2 12 mV VO Load regulation VI= 4.6 V, IO = 5 to 500 mA 2 50 mV 0.5 1 VI= 4.3 to 20V, IO = 0mA Id Quiescent current VI= 4.6 to 20V, IO=500mA VI= 6 V SVR Supply voltage rejection IO = 5 mA, VI= 5.3 ± 1 V ON MODE OFF MODE 50 f = 120 Hz 80 f = 1 kHz 75 f = 10 kHz 60 eN Output noise voltage Vd Dropout voltage VIL Control input logic low Ta = -40 to 125°C VIH Control input logic high Ta = -40 to 125°C Control input current VI= 6 V, VC= 6 V Output bypass capacitance ESR = 0.1 to 10 , IO = 0 to 500 mA II CO mA 12 100 dB B = 10 Hz to 100 KHz 50 IO = 200 mA 0.2 0.35 IO = 500 mA 0.4 0.7 DocID4337 Rev 14 µA µV V 0.8 2 2 V V 10 µA 10 µF 7/21 21 Electrical characteristics KFXX Refer to the test circuits, TJ = 25 °C, CI = 0.1 µF, CO = 2.2 µF unless otherwise specified. Table 6. Electrical characteristics (VO= 5 V) Symbol Parameter VO Output voltage VI Operating input voltage IO Output current limit Test conditions Min. Typ. Max. IO = 50 mA, VI = 7 V 4.9 5 5.1 IO= 50 mA, VI= 7 V, Ta = -25 to 85°C 4.8 Unit V 5.2 IO = 500 mA 20 1 V A VO Line regulation VI= 6 to 20 V, IO = 5 mA 3 18 mV VO Load regulation VI= 6.3 V, IO = 5 to 500 mA 2 50 mV 0.5 1 VI= 6 to 20V, IO = 0mA Id Quiescent current VI= 6.3 to 20V, IO=500mA VI= 6 V SVR Supply voltage rejection IO = 5 mA, VI= 7 ± 1 V ON MODE OFF MODE 50 f = 120 Hz 76 f = 1 kHz 71 f = 10 kHz 60 eN Output noise voltage Vd Dropout voltage VIL Control input logic low Ta = -40 to 125°C VIH Control input logic high Ta = -40 to 125°C Control input current VI= 6 V, VC= 6 V Output bypass capacitance ESR = 0.1 to 10 , IO = 0 to 500 mA II CO 8/21 mA 12 100 dB B = 10 Hz to 100 KHz 50 IO = 200 mA 0.2 0.35 IO = 500 mA 0.4 0.7 DocID4337 Rev 14 µA µV V 0.8 2 2 V V 10 µA 10 µF KFXX Electrical characteristics Refer to the test circuits, TJ = 25 °C, CI = 0.1 µF, CO = 2.2 µF unless otherwise specified. Table 7. Electrical characteristics (VO= 8 V) Symbol Parameter VO Output voltage VI Operating input voltage IO Output current limit Test conditions Min. Typ. Max. IO = 50 mA, VI = 10 V 7.84 8 8.16 IO= 50 mA, VI= 10 V, Ta = -25 to 85°C 7.68 Unit V 8.32 IO = 500 mA 20 1 V A VO Line regulation VI= 9 to 20 V, IO = 5 mA 4 24 mV VO Load regulation VI= 9.3 V, IO = 5 to 500 mA 2 50 mV 0.7 1.5 VI= 9 to 20V, IO = 0mA Id Quiescent current VI= 9.3 to 20V, IO=500mA VI= 9 V SVR Supply voltage rejection IO = 5 mA, VI= 10 ± 1 V ON MODE OFF MODE 70 f = 120 Hz 72 f = 1 kHz 67 f = 10 kHz 60 eN Output noise voltage Vd Dropout voltage VIL Control input logic low Ta = -40 to 125°C VIH Control input logic high Ta = -40 to 125°C Control input current VI= 6 V, VC= 6 V Output bypass capacitance ESR = 0.1 to 10 , IO = 0 to 500 mA II CO mA 12 140 dB B = 10 Hz to 100 KHz 50 IO = 200 mA 0.2 0.35 IO = 500 mA 0.4 0.7 DocID4337 Rev 14 µA µV V 0.8 2 2 V V 10 µA 10 µF 9/21 21 Typical performance characteristics 5 KFXX Typical performance characteristics Unless otherwise specified VO(NOM) = 3.3 V. Figure 4. Dropout voltage vs. output current Figure 5. Dropout voltage vs. temperature Figure 6. Supply current vs. input voltage (IOUT = 500 mA) Figure 7. Supply current vs. input voltage (IOUT = 0 mA) Figure 8. Short circuit current vs. input voltage Figure 9. SVR vs. output current (f= 120 Hz) 10/21 DocID4337 Rev 14 KFXX 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. DocID4337 Rev 14 11/21 21 Package mechanical data KFXX Figure 10. DPAK (TO-252) type A drawing 0068772_M_type_A 12/21 DocID4337 Rev 14 KFXX Package mechanical data Table 8. DPAK (TO-252) type A mechanical data mm Dim. Min. Typ. Max. A 2.20 2.40 A1 0.90 1.10 A2 0.03 0.23 b 0.64 0.90 b4 5.20 5.40 c 0.45 0.60 c2 0.48 0.60 D 6.00 6.20 D1 E 5.10 6.40 6.60 E1 4.70 e 2.28 e1 4.40 4.60 H 9.35 10.10 L 1.00 1.50 (L1) 2.80 L2 0.80 L4 0.60 1.00 R V2 0.20 0° 8° DocID4337 Rev 14 13/21 21 Package mechanical data KFXX Figure 11. DPAK (TO-252) type A footprint (a) Footprint_REV_M_type_A a. All dimensions are in millimeters 14/21 DocID4337 Rev 14 KFXX Package mechanical data Figure 12. SO-8 drawing 0016023_G_FU Table 9. SO-8 mechanical data mm Dim. Min. Typ. A Max. 1.75 A1 0.10 0.25 A2 1.25 b 0.31 0.51 b1 0.28 0.48 c 0.10 0.25 c1 0.10 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 1.04 L2 0.25 DocID4337 Rev 14 15/21 21 Package mechanical data KFXX Table 9. SO-8 mechanical data (continued) mm Dim. Min. k Typ. 0° Max. 8° ccc 0.10 Figure 13. SO-8 recommended footprint(b) Footprint_0016023_G_FU b. All dimensions are in millimeters. 16/21 DocID4337 Rev 14 KFXX 7 Packaging mechanical data Packaging mechanical data Figure 14. Tape for DPAK (TO-252) 10 pitches cumulative tolerance on tape +/- 0.2 mm T P0 Top cover tape P2 D E F B1 K0 For machine ref. only including draft and radii concentric around B0 W B0 A0 P1 D1 User direction of feed R Bending radius User direction of feed AM08852v1 DocID4337 Rev 14 17/21 21 Packaging mechanical data KFXX Figure 15. Reel for DPAK (TO-252) T REEL DIMENSIONS 40mm min. Access hole At slot location B D C N A Full radius G measured at hub Tape slot in core for tape start 25 mm min. width AM08851v2 Table 10. DPAK (TO-252) tape and reel mechanical data Tape Reel mm mm Dim. Dim. Min. Max. A0 6.8 7 A B0 10.4 10.6 B 1.5 12.1 C 12.8 1.6 D 20.2 G 16.4 50 B1 18/21 Min. Max. 330 13.2 D 1.5 D1 1.5 E 1.65 1.85 N F 7.4 7.6 T K0 2.55 2.75 P0 3.9 4.1 Base qty. 2500 P1 7.9 8.1 Bulk qty. 2500 P2 1.9 2.1 R 40 T 0.25 0.35 W 15.7 16.3 DocID4337 Rev 14 18.4 22.4 KFXX Packaging mechanical data Figure 16. SO-8 tape and reel dimensions Table 11. SO-8 tape and reel mechanical data mm Dim. Min. Typ. A Max. 330 C 12.8 D 20.2 N 60 13.2 T 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 DocID4337 Rev 14 19/21 21 Revision history 8 KFXX Revision history Table 12. Document revision history Date Revision 06-Jun-2007 9 Order codes updated. 14-Dec-2007 10 Modified: Table 1. 21-Feb-2008 11 Modified: Table 1. 12 Change title description in cover page. Updated: Table 1 on page 1. Added: RthJA value for DPAK and SO-8 Table 3 on page 5. Modified: titles Figure 6 and Figure 7 on page 10. 19-Mar-2014 13 The part numbers KF25B, KF33B, KF50B, KF80B changed to KF. Updated Section 6: Package mechanical data and Section 7: Packaging mechanical data. Minor text changes. 16-Feb-2018 14 Minor text changes. 23-Oct-2012 20/21 Changes DocID4337 Rev 14 KFXX IMPORTANT NOTICE – PLEASE 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 acknowledgement. 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. 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. © 2018 STMicroelectronics – All rights reserved DocID4337 Rev 14 21/21 21