KD1084 series 5A Low drop positive voltage regulator adjustable and fixed Features ■ Typical dropout 1.3V (at 5A) ■ Three terminal adjustable or fixed output voltage 1.8V, 2.5V, 3.3V. ■ Guaranteed output current up to 5A ■ 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 Description The KD1084 is a LOW DROP Voltage Regulator able to provide up to 5A of Output Current. Dropout is guaranteed at a maximum of 1.5V at the maximum output current, decreasing at lower loads. The KD1084 is pin to pin compatible with he older 3-terminal adjustable regulators but has DPAK TO-220 D2PAK better performances in term of drop and output tolerance. A 2.85V 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 KD1084 quiescent current flows into the load, so increase efficiency. Only a 10µF minimum capacitor is need for stability. 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. Schematic diagram May 2007 Rev. 6 1/22 www.st.com 22 KD1084 series Contents 1 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 Schematic application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5 Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 6 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 7 Order codes 8 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 2/22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 KD1084 series Pin configuration 1 Pin configuration Figure 1. Pin connections (top view) TO-220 DPAK D2PAK 3/22 Maximum ratings KD1084 series 2 Maximum ratings Table 1. Absolute maximum ratings Symbol Parameter Value Unit 12 V VI DC Input voltage IO Output current Internally Limited mA PD Power dissipation Internally Limited mW 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 2. 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 4/22 KD1084 series 3 Schematic application Figure 2. Application circuit Schematic application R V O = V REF ⋅ ⎛ 1 + ------2-⎞ ⎝ R ⎠ 1 5/22 Electrical characteristics KD1084 series 4 Electrical characteristics Table 3. Electrical characteristics of KD1084A#18 (VI = 4.8V, CI = CO = 10µF(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 TJ = 25°C RMS Output noise voltage TA = 25°C, f = 10Hz to 10KHz (% of VO) S Temperature stability S Long term stability 6/22 IO = 0 mA, VI = 3.4 to 10V TA = 125°C, 1000Hrs 5.5 7 0.003 60 A 0.015 %/W 75 dB 0.003 % 0.5 % 0.5 % KD1084 series Table 4. Symbol Electrical characteristics Electrical characteristics of KD1084A#25 (VI = 5.5V, CI = CO = 10µF(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 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 5. 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 KD1084A#33 (VI = 6.3V, CI = CO = 10µF(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 % 7/22 Electrical characteristics Table 6. Symbol KD1084 series Electrical characteristics of KD1084A (VI = 4.25V, CI = CO = 10µF(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 8/22 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 % KD1084 series Table 7. Symbol Electrical characteristics Electrical characteristics of KD1084#18 (VI = 4.8V, CI = CO = 10µF(Tant.), TA = -40 to 125°C, unless otherwise specified) Parameter Test Conditions Min. Typ. Max. Unit IO = 0 mA, TJ = 25°C 1.764 1.8 1.836 V IO = 0 to 5A, VI = 3.4 to 10V 1.746 1.8 1.854 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 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 8. IO = 0 mA, VI = 3.4 to 10V TA = 125°C, 1000Hrs A 0.015 %/W 75 dB 0.003 % 0.5 % 0.5 % Electrical characteristics of KD1084#25 (VI = 5.5V, CI = CO = 10µF(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 IO = 0 mA, VI = 4.1 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 9. Symbol KD1084 series Electrical characteristics of KD1084#33 (VI = 5.85V, CI = CO = 10µF(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 TJ = 25°C RMS Output noise voltage TA = 25°C, f = 10Hz to 10KHz (% of VO) S Temperature stability S Long term stability 10/22 IO = 0 mA, VI = 4.9 to 10V TA = 125°C, 1000Hrs 5.5 7 0.003 60 A 0.015 %/W 72 dB 0.003 % 0.5 % 0.5 % KD1084 series Table 10. Symbol Electrical characteristics Electrical characteristics of KD1084 (VI = 4.25V, CI = CO = 10µF(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 IO = 10 mA, VI = 2.85 to 10V RMS Output noise voltage TA = 25°C, f = 10Hz to 10KHz (% of VO) S Temperature stability S Long term stability 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 % 11/22 Typical application KD1084 series 5 Typical application Figure 3. Unless otherwise specified TJ = 25°C, CI = CO = 10µF (tant.) Dropout voltage vs output current Figure 4. Dropout voltage vs temperature Figure 5. Short circuit current vs dropout voltage Figure 6. Line regulation vs temperature Figure 7. Output voltage vs temperature Figure 8. Load regulation vs temperature 12/22 KD1084 series Figure 9. Supply voltage rejection vs frequency Typical application Figure 10. Adjust pin current vs output current Figure 11. Line transient Figure 12. 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 13/22 Package mechanical data 6 KD1084 series 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. 14/22 KD1084 series Package mechanical data 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 D1 1.27 0.107 0.050 E 0.49 0.70 0.019 0.027 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 14.0 0.511 L2 L4 16.4 13.0 0.645 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 15/22 Package mechanical data KD1084 series DPAK MECHANICAL DATA mm. inch DIM. MIN. TYP MAX. MIN. TYP. MAX. A A1 A2 B b4 2.2 0.9 0.03 0.64 5.2 2.4 1.1 0.23 0.9 5.4 0.086 0.035 0.001 0.025 0.204 0.094 0.043 0.009 0.035 0.212 C C2 D D1 E E1 0.45 0.48 6 0.6 0.6 6.2 0.017 0.019 0.236 0.023 0.023 0.244 6.6 0.252 e e1 H L (L1) L2 L4 R V2 5.1 6.4 0.200 4.7 2.28 4.4 9.35 1 0.090 4.6 10.1 0.173 0.368 0.039 2.8 0.8 0.6 0.181 0.397 0.110 0.031 1 0.023 0.2 0° 0.260 0.185 0.039 0.008 8° 0° 8° 0068772-F 16/22 KD1084 series Package mechanical data 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 D1 E 8 10 E1 0.368 0.315 10.4 0.393 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 17/22 Package mechanical data KD1084 series Tape & Reel DPAK-PPAK MECHANICAL DATA mm. inch DIM. MIN. TYP A MIN. TYP. 330 13.0 13.2 MAX. 12.992 C 12.8 D 20.2 0.795 N 60 2.362 T 18/22 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 KD1084 series Package mechanical data Tape & Reel D2PAK-P 2PAK-D 2PAK/A-P 2PAK/A MECHANICAL DATA mm. inch DIM. MIN. TYP A MAX. MIN. TYP. 180 13.0 7.086 C 12.8 D 20.2 0.795 N 60 2.362 T 13.2 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 19/22 Order codes KD1084 series 7 Order codes Table 11. Order codes Part numbers TO-220 D2PAK DPAK Output voltage Tolerance KD1084DT18R 1.8 V 2% KD1084AD2T18R KD1084ADT18R 1.8 V 1% KD1084D2T25R KD1084DT25R 2.5 V 2% KD1084ADT25R 2.5 V 1% KD1084DT33R 3.3 V 2% KD1084ADT33R 3.3 V 1% KD1084DT-R ADJ 2% KD1084ADT-R ADJ 1% KD1084AV33 KD1084AD2T-R 20/22 KD1084 series Revision history 8 Revision history Table 12. Revision history Date Revision Changes 06-Sep-2005 4 Order Codes has been updated. 02-Apr-2007 5 Order Codes has been updated and the document has been reformatted. 30-May-2007 6 Order Codes has been updated. 21/22 KD1084 series 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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