KD1084xx KD1084Axx 5 A low drop positive voltage regulator adjustable and fixed Features ■ Typical dropout 1.3 V (at 5 A) ■ Three terminal adjustable or fixed output voltage 1.8 V, 2.5 V, 3.3 V. ■ Guaranteed output current up to 5 A ■ Output tolerance ±1% at 25 °C and ±2% in full temperature range for the "A" version ■ Output tolerance ±2% at 25 °C and ±3% In full temperature range internal power and thermal limit ■ Wide operating temp. range -40 °C to 125 °C ■ Package available: TO-220, D2PAK, DPAK ■ Pinout compatibility with standard adjustable VREG D2PAK A 2.85 V output version is suitable for SCSI-2 active termination. Unlike PNP regulators, where a part of the output current is wasted as quiescent current, the KD1084xx quiescent current flows into the load, so increase efficiency. Only a 10 µF minimum capacitor is need for stability. Description The KD1084xx is a LOW DROP voltage regulator able to provide up to 5 A of output current. Dropout is guaranteed at a maximum of 1.5 V at the maximum output current, decreasing at lower loads. The KD1084xx is pin to pin compatible with he older 3-terminal adjustable regulators but has better performances in term of drop and output tolerance. Table 1. DPAK TO-220 The devices are supplied in TO-220, D2PAK and DPAK. On chip trimming allows the regulator to reach a very tight output voltage tolerance, within ±1% at 25 °C for "A" version and ±2% at 25 °C for standard version. Device summary Order codes Part numbers TO-220 D2PAK DPAK KD1084AXX18 KD1084AD2T18R KD1084XX25 KD1084D2T25R KD1084AXX25 Output voltage Tolerance 1.8 V 1% KD1084DT25R 2.5 V 2% KD1084ADT25R 2.5 V 1% KD1084XX33 KD1084V33 KD1084DT33R 3.3 V 2% KD1084AXX33 KD1084AV33 KD1084ADT33R 3.3 V 1% KD1084XX KD1084DT-R ADJ 2% KD1084AXX KD1084ADT-R ADJ 1% December 2007 Rev 7 1/22 www.st.com 22 Contents KD1084Axx Contents 1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 Schematic application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 6 Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 7 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 8 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 2/22 KD1084Axx Diagram 1 Diagram Figure 1. Schematic diagram 3/22 Pin configuration KD1084Axx 2 Pin configuration Figure 2. Pin connections (top view) TO-220 DPAK D2PAK 4/22 KD1084Axx Maximum ratings 3 Maximum ratings Table 2. Absolute maximum ratings Symbol Parameter Value Unit 12 V VI DC input voltage IO Output current Internally limited PD Power dissipation Internally limited TSTG Storage temperature range -55 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 TO-220 DPAK D2PAK Unit RthJC Thermal resistance junction-case 3 8 3 °C/W RthJA Thermal resistance junction-ambient 50 100 62.5 °C/W 5/22 Schematic application 4 Schematic application Figure 3. Application circuit KD1084Axx R V O = V REF ⋅ ⎛ 1 + ------2-⎞ ⎝ R ⎠ 1 6/22 KD1084Axx Electrical characteristics 5 Electrical characteristics Table 4. Electrical characteristics of KD1084A#18 (VI = 4.8 V, CI = CO = 10 µF (tant.), TA = -40 to 125 °C, unless otherwise specified) Symbol Parameter Test conditions Min. Typ. Max. Unit IO = 0 mA, TJ = 25°C 1.782 1.8 1.818 V IO = 0 to 5A, VI = 3.4 to 10V 1.764 1.8 1.836 V 0.5 6 mV IO = 0 mA, VI = 3.4 to 10V 1 6 mV IO = 0 to 5A, TJ = 25°C 3 15 mV IO = 0 to 5A 7 20 V VO Output voltage ΔVO Line regulation ΔVO Load regulation Vd Dropout voltage IO = 5 A 1.3 1.5 V Iq Quiescent current VI ≤10V 5 10 mA Isc Short circuit current VI - VO = 5V Thermal regulation TA = 25°C, 30ms pulse Supply voltage rejection f = 120 Hz, CO = 25µF, IO = 5A VI = 5.3 ± 1.5V SVR eN IO = 0 mA, VI = 3.4 to 10V TJ = 25°C RMS Output noise voltage TA = 25°C, f = 10Hz to 10kHz (% of VO) S Temperature stability S Long term stability TA = 125°C, 1000Hrs 5.5 7 0.003 60 A 0.015 %/W 75 dB 0.003 % 0.5 % 0.5 % 7/22 Electrical characteristics Table 5. Symbol KD1084Axx Electrical characteristics of KD1084A#25 (VI = 5.5 V, CI = CO = 10 µF (tant.), TA = -40 to 125 °C, unless otherwise specified) Parameter Test conditions Min. Typ. Max. Unit IO = 0 mA, TJ = 25°C 2.475 2.5 2.525 V IO = 0 to 5A, VI = 4.1 to 10V 2.45 2.5 2.55 V 0.5 6 mV IO = 0 mA, VI = 4.1 to 10V 1 6 mV IO = 0 to 5A, TJ = 25°C 3 15 mV IO = 0 to 5A 7 20 V VO Output voltage ΔVO Line regulation ΔVO Load regulation Vd Dropout voltage IO = 5 A 1.3 1.5 V Iq Quiescent current VI ≤10V 5 10 mA Isc Short circuit current VI - VO = 5V Thermal regulation TA = 25°C, 30ms pulse Supply voltage rejection f = 120 Hz, CO = 25µF, IO = 5A VI = 6 ± 1.5V SVR eN TJ = 25°C RMS Output noise voltage TA = 25°C, f = 10Hz to 10kHz (% of VO) S Temperature stability S Long term stability 8/22 IO = 0 mA, VI = 4.1 to 10V TA = 125°C, 1000Hrs 5.5 7 0.003 60 A 0.015 %/W 72 dB 0.003 % 0.5 % 0.5 % KD1084Axx Table 6. Symbol Electrical characteristics Electrical characteristics of KD1084A#33 (VI = 6.3 V, CI = CO = 10 µF (tant.), TA = -40 to 125 °C, unless otherwise specified) Parameter Test conditions Min. Typ. Max. Unit IO = 0 mA, TJ = 25°C 3.267 3.3 3.333 V IO = 0 to 5A, VI = 4.9 to 10V 3.234 3.35 3.366 V 0.5 6 mV IO = 0 mA, VI = 4.9 to 10V 1 6 mV IO = 0 to 5A, TJ = 25°C 3 15 mV IO = 0 to 5A 7 20 V VO Output voltage ΔVO Line regulation ΔVO Load regulation Vd Dropout voltage IO = 5 A 1.3 1.5 V Iq Quiescent current VI ≤10V 5 10 mA Isc Short circuit current VI - VO = 5V Thermal regulation TA = 25°C, 30ms pulse Supply voltage rejection f = 120 Hz, CO = 25µF, IO = 5A VI = 6.8 ± 1.5V SVR eN IO = 0 mA, VI = 4.9 to 10V TJ = 25°C RMS Output noise voltage TA = 25°C, f = 10Hz to 10kHz (% of VO) S Temperature stability S Long term stability TA = 125°C, 1000Hrs 5.5 7 0.003 60 A 0.015 %/W 72 dB 0.003 % 0.5 % 0.5 % 9/22 Electrical characteristics Table 7. Symbol KD1084Axx Electrical characteristics of KD1084A (VI = 4.25 V, CI = CO = 10 µF (tant.), TA = -40 to 125°C, unless otherwise specified) Parameter Test conditions Min. Typ. Max. Unit IO = 10 mA, TJ = 25°C 1.237 1.25 1.263 V IO = 10 mA to 5A, VI = 2.85 to 10V 1.225 1.25 1.275 V 0.015 0.2 mV IO = 10 mA, VI = 2.85 to 10V 0.035 0.2 mV IO = 10 mA to 5A, TJ = 25°C 0.1 0.3 mV IO = 10 mA to 5A 0.2 0.4 V VO Output voltage ΔVO Line regulation ΔVO Load regulation Vd Dropout voltage IO = 5 A 1.3 1.5 V Quiescent current VI ≤10V 3 10 mA Short circuit current VI - VO = 5V Thermal regulation TA = 25°C, 30ms pulse SVR Supply voltage rejection f = 120 Hz, CO = 25µF, CADJ = 25µF, IO = 5A, VI = 4.75 ± 1.5V IADJ Adjust pin current VI = 4.25V, IO = 10 mA 55 120 µA Adjust pin current change VI = 2.85 to 10V, IO = 10 mA to 5A 0.2 5 µA IO(min) Isc ΔIADJ eN RMS Output noise voltage TA = 25°C, f = 10Hz to 10kHz (% of VO) S Temperature stability S Long term stability 10/22 IO = 10 mA, VI = 2.85 to 10V TA = 125°C, 1000Hrs TJ = 25°C 5.5 7 0.003 60 A 0.015 72 %/W dB 0.003 % 0.5 % 0.5 % KD1084Axx Table 8. Symbol Electrical characteristics Electrical characteristics of KD1084#25 (VI = 5.5 V, CI = CO = 10 µF (tant.), TA = -40 to 125°C, unless otherwise specified) Parameter Test conditions Min. Typ. Max. Unit IO = 0 mA, TJ = 25°C 2.45 2.5 2.55 V IO = 0 to 5A, VI = 4.1 to 10V 2.425 2.5 2.575 V 0.5 6 mV IO = 0 mA, VI = 4.1 to 10V 1 6 mV IO = 0 to 5A, TJ = 25°C 3 15 mV IO = 0 to 5A 7 20 V VO Output voltage ΔVO Line regulation ΔVO Load regulation Vd Dropout voltage IO = 5 A 1.3 1.5 V Iq Quiescent current VI ≤10V 5 10 mA Isc Short circuit current VI - VO = 5V Thermal regulation TA = 25°C, 30ms pulse Supply voltage rejection f = 120 Hz, CO = 25µF, IO = 5A VI = 6 ± 1.5V SVR eN Temperature stability S Long term stability Symbol TJ = 25°C 5.5 7 0.003 60 RMS Output noise voltage TA = 25°C, f = 10Hz to 10kHz (% of VO) S Table 9. IO = 0 mA, VI = 4.1 to 10V TA = 125°C, 1000Hrs A 0.015 %/W 72 dB 0.003 % 0.5 % 0.5 % Electrical characteristics of KD1084#33 (VI = 5.85 V, CI = CO = 10 µF (tant.), TA = -40 to 125°C, unless otherwise specified) Parameter Test conditions Min. Typ. Max. Unit 3.234 3.3 3.366 V 3.2 3.3 3.4 V 0.5 6 mV IO = 0 mA, VI = 4.9 to 10V 1 6 mV IO = 0 to 5A, TJ = 25°C 3 15 mV IO = 0 to 5A 7 20 V IO = 0 mA, TJ = 25°C VO Output voltage ΔVO Line regulation ΔVO Load regulation Vd Dropout voltage IO = 5 A 1.3 1.5 V Iq Quiescent current VI ≤10V 5 10 mA Isc Short circuit current VI - VO = 5V Thermal regulation TA = 25°C, 30ms pulse Supply voltage rejection f = 120 Hz, CO = 25µF, IO = 5A VI = 6.8 ± 1.5V SVR eN IO = 0 to 5A, VI = 4.9 to 10V IO = 0 mA, VI = 4.9 to 10V TJ = 25°C RMS Output noise voltage TA = 25°C, f = 10Hz to 10kHz (% of VO) S Temperature stability S Long term stability TA = 125°C, 1000Hrs 5.5 7 0.003 60 A 0.015 %/W 72 dB 0.003 % 0.5 % 0.5 % 11/22 Electrical characteristics Table 10. Symbol KD1084Axx Electrical characteristics of KD1084 (VI = 4.25 V, CI = CO = 10 µF (tant.), TA = -40 to 125 °C, unless otherwise specified) Parameter Test conditions Min. Typ. Max. Unit IO = 10 mA, TJ = 25°C 1.225 1.25 1.275 V IO = 10 mA to 5A, VI = 2.85 to 10V 1.213 1.25 1.287 V 0.015 0.2 mV IO = 10 mA, VI = 2.85 to 10V 0.035 0.2 mV IO = 10 mA to 5A, TJ = 25°C 1 0.3 mV IO = 10 mA to 5A 0.2 0.4 V VO Output voltage ΔVO Line regulation ΔVO Load regulation Vd Dropout voltage IO = 5 A 1.3 1.5 V Quiescent current VI ≤10V 3 10 mA Short circuit current VI - VO = 5V Thermal regulation TA = 25°C, 30ms pulse SVR Supply voltage rejection f = 120 Hz, CO = 25µF, CADJ = 25µF, IO = 5A, VI = 4.75 ± 1.5V IADJ Adjust pin current VI = 4.25V, IO = 10 mA 55 120 µA Adjust pin current change VI = 2.85 to 10V, IO = 10 mA to 5A 0.2 5 µA IO(min) Isc ΔIADJ eN RMS Output noise voltage TA = 25°C, f = 10Hz to 10kHz (% of VO) S Temperature stability S Long term stability 12/22 IO = 10 mA, VI = 2.85 to 10V TA = 125°C, 1000Hrs TJ = 25°C 5.5 7 0.003 60 A 0.015 72 %/W dB 0.003 % 0.5 % 0.5 % KD1084Axx Typical application 6 Typical application Figure 4. Unless otherwise specified TJ = 25 °C, CI = CO = 10 µF (tant.) Dropout voltage vs output current Figure 5. Dropout voltage vs temperature Figure 6. Short circuit current vs dropout voltage Figure 7. Line regulation vs temperature Figure 8. Output voltage vs temperature Figure 9. Load regulation vs temperature 13/22 Typical application KD1084Axx Figure 10. Supply voltage rejection vs frequency Figure 11. Adjust pin current vs output current Figure 12. Line transient Figure 13. Load transient VI=4 to 6V, IO=200mA,CI = 1µF(tant), CO=10µF(tant), ts=tf=5µs VI=7 V, IO=0.1 to 5 A, CI = 1µF(tant), CO=10µF(tant) ts=tf=3.5µs 14/22 KD1084Axx 7 Package mechanical data Package mechanical data In order to meet environmental requirements, ST offers these devices in ECOPACK® 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. 15/22 Package mechanical data KD1084Axx TO-220 mechanical data Dim. mm. Min. Typ. inch. Max. Min. Typ. Max. A 4.40 4.60 0.173 0.181 C 1.23 1.32 0.048 0.051 D 2.40 2.72 0.094 0.107 0.70 0.019 0.027 D1 E 1.27 0.49 0.050 F 0.61 0.88 0.024 0.034 F1 1.14 1.70 0.044 0.067 F2 1.14 1.70 0.044 0.067 G 4.95 5.15 0.194 0.203 G1 2.4 2.7 0.094 0.106 H2 10.0 10.40 0.393 0.409 L2 16.4 0.645 L4 13.0 14.0 0.511 0.551 L5 2.65 2.95 0.104 0.116 L6 15.25 15.75 0.600 0.620 L7 6.2 6.6 0.244 0.260 L9 3.5 3.93 0.137 0.154 DIA. 3.75 3.85 0.147 0.151 P011C 16/22 KD1084Axx Package mechanical data DPAK mechanical data mm. inch. Dim. Min. A A1 A2 B b4 C C2 D D1 E E1 e e1 H L (L1) L2 L4 R V2 Typ. 2.2 0.9 0.03 0.64 5.2 0.45 0.48 6 Max. Min. 2.4 1.1 0.23 0.9 5.4 0.6 0.6 6.2 0.086 0.035 0.001 0.025 0.204 0.017 0.019 0.236 6.6 0.252 5.1 6.4 0.260 0.173 0.368 0.039 2.8 0.8 0.181 0.397 0.110 0.031 1 0.023 0.2 0° 0.094 0.043 0.009 0.035 0.212 0.023 0.023 0.244 0.185 0.090 4.6 10.1 0.6 Max. 0.200 4.7 2.28 4.4 9.35 1 Typ. 0.039 0.008 8° 0° 8° 0068772-F 17/22 Package mechanical data KD1084Axx D2PAK mechanical data mm. inch. Dim. Min. Typ. Max. Min. Typ. Max. A 4.4 4.6 0.173 0.181 A1 2.49 2.69 0.098 0.106 A2 0.03 0.23 0.001 0.009 B 0.7 0.93 0.027 0.036 B2 1.14 1.7 0.044 0.067 C 0.45 0.6 0.017 0.023 C2 1.23 1.36 0.048 0.053 D 8.95 9.35 0.352 0.368 10.4 0.393 D1 E 8 10 E1 0.315 8.5 0.409 0.335 G 4.88 5.28 0.192 0.208 L 15 15.85 0.590 0.624 L2 1.27 1.4 0.050 0.055 L3 1.4 1.75 0.055 0.068 M 2.4 3.2 0.094 R V2 0.4 0° 0.126 0.016 8° 0° 8° P011P6G 18/22 KD1084Axx Package mechanical data Tape & reel DPAK-PPAK mechanical data mm. inch. Dim. Min. Typ. A Max. Min. Typ. 330 13.0 12.992 C 12.8 D 20.2 0.795 N 60 2.362 T 13.2 Max. 0.504 0.512 22.4 0.519 0.882 Ao 6.80 6.90 7.00 0.268 0.272 0.2.76 Bo 10.40 10.50 10.60 0.409 0.413 0.417 Ko 2.55 2.65 2.75 0.100 0.104 0.105 Po 3.9 4.0 4.1 0.153 0.157 0.161 P 7.9 8.0 8.1 0.311 0.315 0.319 19/22 Package mechanical data KD1084Axx Tape & reel D2PAK-P2PAK-D2PAK/A-P2PAK/A mechanical data mm. inch. Dim. Min. Typ. A Min. Typ. 180 13.0 13.2 Max. 7.086 C 12.8 D 20.2 0.795 N 60 2.362 T 20/22 Max. 0.504 0.512 14.4 0.519 0.567 Ao 10.50 10.6 10.70 0.413 0.417 0.421 Bo 15.70 15.80 15.90 0.618 0.622 0.626 Ko 4.80 4.90 5.00 0.189 0.193 0.197 Po 3.9 4.0 4.1 0.153 0.157 0.161 P 11.9 12.0 12.1 0.468 0.472 0.476 KD1084Axx Revision history 8 Revision history Table 11. Document revision history Date Revision Changes 06-Sep-2005 4 Order codes updated. 02-Apr-2007 5 Order codes updated. 30-May-2007 6 Order codes updated. 18-Dec-2007 7 Added Table 1. 21/22 KD1084Axx 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. UNLESS OTHERWISE SET FORTH IN ST’S TERMS AND CONDITIONS OF SALE ST DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY WITH RESPECT TO THE USE AND/OR SALE OF ST PRODUCTS INCLUDING WITHOUT LIMITATION IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION), OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. UNLESS EXPRESSLY APPROVED IN WRITING BY AN AUTHORIZED ST REPRESENTATIVE, ST PRODUCTS ARE NOT RECOMMENDED, AUTHORIZED OR WARRANTED FOR USE IN MILITARY, AIR CRAFT, SPACE, LIFE SAVING, OR LIFE SUSTAINING APPLICATIONS, NOR IN PRODUCTS OR SYSTEMS WHERE FAILURE OR MALFUNCTION MAY RESULT IN PERSONAL INJURY, DEATH, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE. ST PRODUCTS WHICH ARE NOT SPECIFIED AS "AUTOMOTIVE GRADE" MAY ONLY BE USED IN AUTOMOTIVE APPLICATIONS AT USER’S OWN RISK. Resale of ST products with provisions different from the statements and/or technical features set forth in this document shall immediately void any warranty granted by ST for the ST product or service described herein and shall not create or extend in any manner whatsoever, any liability of ST. ST and the ST logo are trademarks or registered trademarks of ST in various countries. Information in this document supersedes and replaces all information previously supplied. The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners. © 2007 STMicroelectronics - All rights reserved STMicroelectronics group of companies Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America www.st.com 22/22