KD1084AXX18

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, 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: D2PAK and DPAK Pinout compatibility with standard adjustable VREG 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. The devices are supplied in 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. D2PAK DPAK ■ ■ ■ 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. Device summary Order codes Part numbers KD1084AXX18 KD1084XX33 KD1084AXX33 KD1084XX KD1084AXX D2PAK KD1084AD2T18R DPAK Output voltage 1.8 V Tolerance 1% 2% 1% 2% 1% KD1084DT33R KD1084ADT33R KD1084DT-R KD1084ADT-R 3.3 V 3.3 V ADJ ADJ July 2008 Rev 9 1/20 www.st.com 20 Contents KD1084xx - KD1084Axx Contents 1 2 3 4 5 6 7 8 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Schematic application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 2/20 KD1084xx - KD1084Axx Diagram 1 Figure 1. Diagram Schematic diagram 3/20 Pin configuration KD1084xx - KD1084Axx 2 Figure 2. Pin configuration Pin connections (top view) D2PAK DPAK 4/20 KD1084xx - KD1084Axx Maximum ratings 3 Table 2. Maximum ratings Absolute maximum ratings Parameter DC input voltage Output current Power dissipation Storage temperature range Operating junction temperature range Value 12 Internally limited Internally limited -55 to +150 -40 to +125 °C °C Unit V Symbol VI IO PD 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. Thermal data Parameter Thermal resistance junction-case Thermal resistance junction-ambient DPAK 8 100 D2PAK 3 62.5 Unit °C/W °C/W Table 3. Symbol RthJC RthJA 5/20 Schematic application KD1084xx - KD1084Axx 4 Figure 3. Schematic application Application circuit R2 V O = V REF ⋅ ⎛ 1 + ------⎞ ⎝ R 1⎠ 6/20 KD1084xx - KD1084Axx Electrical characteristics 5 Table 4. Symbol VO ΔVO ΔVO Vd Iq Isc Electrical characteristics Electrical characteristics of KD1084A#18 (VI = 4.8 V, CI = CO = 10 µF (tant.), TA = -40 to 125 °C, unless otherwise specified) Parameter Output voltage Test conditions IO = 0 mA, TJ = 25°C IO = 0 to 5A, VI = 3.4 to 10V Line regulation IO = 0 mA, VI = 3.4 to 10V IO = 0 mA, VI = 3.4 to 10V Load regulation Dropout voltage Quiescent current Short circuit current Thermal regulation SVR eN S S Supply voltage rejection IO = 0 to 5A, TJ = 25°C IO = 0 to 5A IO = 5 A VI ≤ 10V VI - VO = 5V TA = 25°C, 30ms pulse f = 120 Hz, CO = 25µF, IO = 5A VI = 5.3 ± 1.5V 60 5.5 TJ = 25°C Min. 1.782 1.764 Typ. 1.8 1.8 0.5 1 3 7 1.3 5 7 0.003 75 0.003 0.5 TA = 125°C, 1000Hrs 0.5 0.015 Max. 1.818 1.836 6 6 15 20 1.5 10 Unit V V mV mV mV V V mA A %/W dB % % % RMS Output noise voltage TA = 25°C, f = 10Hz to 10kHz (% of VO) Temperature stability Long term stability 7/20 Electrical characteristics Table 5. Symbol VO ΔVO ΔVO Vd Iq Isc KD1084xx - KD1084Axx Electrical characteristics of KD1084A#33 (VI = 6.3 V, CI = CO = 10 µF (tant.), TA = -40 to 125 °C, unless otherwise specified) Parameter Output voltage Test conditions IO = 0 mA, TJ = 25°C IO = 0 to 5A, VI = 4.9 to 10V Line regulation IO = 0 mA, VI = 4.9 to 10V IO = 0 mA, VI = 4.9 to 10V Load regulation Dropout voltage Quiescent current Short circuit current Thermal regulation IO = 0 to 5A, TJ = 25°C IO = 0 to 5A IO = 5 A VI ≤ 10V VI - VO = 5V TA = 25°C, 30ms pulse f = 120 Hz, CO = 25µF, IO = 5A VI = 6.8 ± 1.5V 60 5.5 TJ = 25°C Min. 3.267 3.234 Typ. 3.3 3.35 0.5 1 3 7 1.3 5 7 0.003 72 0.003 0.5 TA = 125°C, 1000Hrs 0.5 0.015 Max. 3.333 3.366 6 6 15 20 1.5 10 Unit V V mV mV mV V V mA A %/W dB % % % SVR eN S S Supply voltage rejection RMS Output noise voltage TA = 25°C, f = 10Hz to 10kHz (% of VO) Temperature stability Long term stability 8/20 KD1084xx - KD1084Axx Electrical characteristics Table 6. Symbol VO ΔVO ΔVO Vd IO(min) Isc Electrical characteristics of KD1084A (VI = 4.25 V, CI = CO = 10 µF (tant.), TA = -40 to 125°C, unless otherwise specified) Parameter Output voltage Test conditions IO = 10 mA, TJ = 25°C IO = 10 mA to 5A, VI = 2.85 to 10V Line regulation IO = 10 mA, VI = 2.85 to 10V IO = 10 mA, VI = 2.85 to 10V Load regulation Dropout voltage Quiescent current Short circuit current Thermal regulation IO = 10 mA to 5A, TJ = 25°C IO = 10 mA to 5A IO = 5 A VI ≤ 10V VI - VO = 5V TA = 25°C, 30ms pulse f = 120 Hz, CO = 25µF, CADJ = 25µF, IO = 5A, VI = 4.75 ± 1.5V VI = 4.25V, IO = 10 mA VI = 2.85 to 10V, IO = 10 mA to 5A 60 5.5 TJ = 25°C Min. 1.237 1.225 Typ. 1.25 1.25 0.015 0.035 0.1 0.2 1.3 3 7 0.003 72 55 0.2 0.003 0.5 TA = 125°C, 1000Hrs 0.5 120 5 0.015 Max. 1.263 1.275 0.2 0.2 0.3 0.4 1.5 10 Unit V V mV mV mV V V mA A %/W dB µA µA % % % SVR IADJ ΔIADJ eN S S Supply voltage rejection Adjust pin current Adjust pin current change RMS Output noise voltage TA = 25°C, f = 10Hz to 10kHz (% of VO) Temperature stability Long term stability 9/20 Electrical characteristics KD1084xx - KD1084Axx Table 7. Symbol VO ΔVO ΔVO Vd Iq Isc Electrical characteristics of KD1084#33 (VI = 5.85 V, CI = CO = 10 µF (tant.), TA = -40 to 125°C, unless otherwise specified) Parameter Output voltage Test conditions IO = 0 mA, TJ = 25°C IO = 0 to 5A, VI = 4.9 to 10V Line regulation IO = 0 mA, VI = 4.9 to 10V IO = 0 mA, VI = 4.9 to 10V Load regulation Dropout voltage Quiescent current Short circuit current Thermal regulation IO = 0 to 5A, TJ = 25°C IO = 0 to 5A IO = 5 A VI ≤ 10V VI - VO = 5V TA = 25°C, 30ms pulse f = 120 Hz, CO = 25µF, IO = 5A VI = 6.8 ± 1.5V 60 5.5 TJ = 25°C Min. 3.234 3.2 Typ. 3.3 3.3 0.5 1 3 7 1.3 5 7 0.003 72 0.003 0.5 TA = 125°C, 1000Hrs 0.5 0.015 Max. 3.366 3.4 6 6 15 20 1.5 10 Unit V V mV mV mV V V mA A %/W dB % % % SVR eN S S Supply voltage rejection RMS Output noise voltage TA = 25°C, f = 10Hz to 10kHz (% of VO) Temperature stability Long term stability 10/20 KD1084xx - KD1084Axx Table 8. Symbol VO ΔVO ΔVO Vd IO(min) Isc Electrical characteristics Electrical characteristics of KD1084 (VI = 4.25 V, CI = CO = 10 µF (tant.), TA = -40 to 125 °C, unless otherwise specified) Parameter Output voltage Test conditions IO = 10 mA, TJ = 25°C IO = 10 mA to 5A, VI = 2.85 to 10V Line regulation IO = 10 mA, VI = 2.85 to 10V IO = 10 mA, VI = 2.85 to 10V Load regulation Dropout voltage Quiescent current Short circuit current Thermal regulation IO = 10 mA to 5A, TJ = 25°C IO = 10 mA to 5A IO = 5 A VI ≤ 10V VI - VO = 5V TA = 25°C, 30ms pulse f = 120 Hz, CO = 25µF, CADJ = 25µF, IO = 5A, VI = 4.75 ± 1.5V VI = 4.25V, IO = 10 mA VI = 2.85 to 10V, IO = 10 mA to 5A 60 5.5 TJ = 25°C Min. 1.225 1.213 Typ. 1.25 1.25 0.015 0.035 1 0.2 1.3 3 7 0.003 72 55 0.2 0.003 0.5 TA = 125°C, 1000Hrs 0.5 120 5 0.015 Max. 1.275 1.287 0.2 0.2 0.3 0.4 1.5 10 Unit V V mV mV mV V V mA A %/W dB µA µA % % % SVR IADJ ΔIADJ eN S S Supply voltage rejection Adjust pin current Adjust pin current change RMS Output noise voltage TA = 25°C, f = 10Hz to 10kHz (% of VO) Temperature stability Long term stability 11/20 Typical application KD1084xx - KD1084Axx 6 Figure 4. Typical application 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 12/20 KD1084xx - KD1084Axx Typical application 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 13/20 Package mechanical data KD1084xx - KD1084Axx 7 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. 14/20 KD1084xx - KD1084Axx Package mechanical data DPAK mechanical data mm. Dim. Min. A A1 A2 B b4 C C2 D D1 E E1 e e1 H L (L1) L2 L4 R V2 2.2 0.9 0.03 0.64 5.2 0.45 0.48 6 5.1 6.4 4.7 2.28 4.4 9.35 1 2.8 0.8 0.6 0.2 0° 8° 0° 1 0.023 0.008 8° 4.6 10.1 0.173 0.368 0.039 0.110 0.031 0.039 6.6 0.252 0.185 0.090 0.181 0.397 Typ. Max. 2.4 1.1 0.23 0.9 5.4 0.6 0.6 6.2 Min. 0.086 0.035 0.001 0.025 0.204 0.017 0.019 0.236 0.200 0.260 Typ. Max. 0.094 0.043 0.009 0.035 0.212 0.023 0.023 0.244 inch. 0068772-F 15/20 Package mechanical data KD1084xx - KD1084Axx D2PAK mechanical data mm. Dim. Min. A A1 A2 B B2 C C2 D D1 E E1 G L L2 L3 M R V2 0° 4.88 15 1.27 1.4 2.4 0.4 8° 0° 10 8.5 5.28 15.85 1.4 1.75 3.2 0.192 0.590 0.050 0.055 0.094 0.016 8° 4.4 2.49 0.03 0.7 1.14 0.45 1.23 8.95 8 10.4 0.393 0.335 0.208 0.624 0.055 0.068 0.126 Typ. Max. 4.6 2.69 0.23 0.93 1.7 0.6 1.36 9.35 Min. 0.173 0.098 0.001 0.027 0.044 0.017 0.048 0.352 0.315 0.409 Typ. Max. 0.181 0.106 0.009 0.036 0.067 0.023 0.053 0.368 inch. P011P6G 16/20 KD1084xx - KD1084Axx Package mechanical data Tape & reel DPAK-PPAK mechanical data mm. Dim. Min. A C D N T Ao Bo Ko Po P 6.80 10.40 2.55 3.9 7.9 6.90 10.50 2.65 4.0 8.0 12.8 20.2 60 22.4 7.00 10.60 2.75 4.1 8.1 0.268 0.409 0.100 0.153 0.311 0.272 0.413 0.104 0.157 0.315 13.0 Typ. Max. 330 13.2 0.504 0.795 2.362 0.882 0.2.76 0.417 0.105 0.161 0.319 0.512 Min. Typ. Max. 12.992 0.519 inch. 17/20 Package mechanical data KD1084xx - KD1084Axx Tape & reel D2PAK-P2PAK-D2PAK/A-P2PAK/A mechanical data mm. Dim. Min. A C D N T Ao Bo Ko Po P 10.50 15.70 4.80 3.9 11.9 10.6 15.80 4.90 4.0 12.0 12.8 20.2 60 14.4 10.70 15.90 5.00 4.1 12.1 0.413 0.618 0.189 0.153 0.468 0.417 0.622 0.193 0.157 0.472 13.0 Typ. Max. 180 13.2 0.504 0.795 2.362 0.567 0.421 0.626 0.197 0.161 0.476 0.512 Min. Typ. Max. 7.086 0.519 inch. 18/20 KD1084xx - KD1084Axx Revision history 8 Table 9. Date Revision history Document revision history Revision 4 5 6 7 8 9 Order codes updated. Order codes updated. Order codes updated. Added Table 1. Modified: Table 1 on page 1. Modified: Table 1 on page 1. Changes 06-Sep-2005 02-Apr-2007 30-May-2007 18-Dec-2007 21-Feb-2008 16-Jul-2008 19/20 KD1084xx - 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. 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