KD1083 7.5A LOW DROP POSITIVE VOLTAGE REGULATOR ADJUSTABLE AND FIXED THREE TERMINAL ADJUSTABLE OR FIXED OUTPUT VOLTAGE 1.5V,1.8V, 2.5V, 3.0, 3.3V OUTPUT CURRENT UP TO 7.5A 1.4V MAX DROPOUT VOLTAGE AT FULL LOAD LINE REGULATION: MAX 0.2% OVER FULL TEMPERATURE RANGE LOAD REGULATION: MAX 0.5% OVER FULL TEMPERATURE RANGE OUTPUT CURRENT LIMIT THERMAL SHUTDOWN PROTECTION WITH HYSTERESIS WIDE OPERATING TEMPERATURE RANGE -40C TO 125C PINOUT COMPATIBILITY WITH STANDARD ADJUSTABLE VREG ) s ( t c u d o ) r s ( P t c e t u e d l o o r s P b e O t e l ) o s ( s t b c u O d o ) r s P ( t c e t u e l d o o r s P b O e t e l o s b O DESCRIPTION The KD1083 is a low drop linear voltage regulator, proposed both in adjustable and fixed version and designed for use in applications requiring output currents up to 7.5A. Dropout voltage is guaranteed not to exceed 1.4V at maximum output current while it decreases at lighter loads. The KD1083 also features an on-chip output current limit function and a thermal shutdown protection with hysteresis, preventing from excessive power dissipation in case of Figure 1: Schematic Diagram December 2004 TO-220 D2PAK insufficient heatsinking. The KD1083 is fully pin to pin compatible with the older 3-terminal adjustable regulators, but it has better performances in terms of drop and output voltage precision. On chip trimming allows the regulator to reach a very tight output voltage tolerance, within 2% at 25C and 2% over the full temperature range. Unlike voltage regulators using a PNP transistor as series pass element in which a considerable fraction of the output current is wasted as quiescent current, the LD1083 quiescent current flows almost entirely into the load, improving the efficiency. Only a 10F minimum capacitor is required for output stability. Rev. 2 1/12 KD1083 Table 1: Absolute Maximum Ratings Symbol VIN Parameter DC Input to Output Voltage Value Unit from -0.3 to 10 V IO Output Current Internally Limited A PD Power Dissipation Internally Limited W Tstg Storage Temperature Range -55 to +150 C Top Operating Junction Temperature Range -40 to +125 C 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 ) s ( t c u d o ) r s ( P t c e t u e d l o o r s P b e O t e l ) o s ( s t b c u O d o ) r s P ( t c e t u e l d o o r s P b O e t e l o s b O Symbol Parameter TO-220 D2PAK Unit Rthj-case Thermal Resistance Junction-case 3 3 C/W Rthj-amb Thermal Resistance Junction-ambient 50 62.5 C/W Figure 2: Connection Diagram (top view) D2PAK TO-220 Table 3: Order Codes TO-220 D2PAK(*) OUTPUT VOLTAGE KD1083V15 KD1083V18 KD1083V25 KD1083V30 KD1083V33 KD1083V KD1083D2T15 KD1083D2T18 KD1083D2T25 KD1083D2T30 KD1083D2T33 KD1083D2T 1.5V 1.8V 2.5V 3.0V 3.3V Adjustable (*) Available in Tape & Reel with the suffix "R" for fixed version and "-R" for adjustable version. Figure 3: Typical Application Circuits R2 VO = VREF (1 + ) R1 2/12 KD1083 Table 4: Electrical Characteristics Of KD1083 (VIN=3V, CI = CO =10F, Tj = -40 to 125C, unless otherwise specified.) Symbol VREF Parameter Test Conditions Min. Typ. Max. Unit Reference Voltage IO=10mA, (VIN-VO) = 3V, Tj = 25C 1.237 1.25 1.262 V 1.225 1.25 1.275 V VREF Line Regulation IO = 0.01 to 7.5A, (VIN-VO) = 1.5 to 5.75V (note1) IO=10mA, (VIN-VO) = 1.5 to 5.75V 0.015 0.2 % VREF Load Regulation (VIN-VO)=3V, IO = 10mA to 7.5A 0.3 0.5 % Vd Dropout Voltage VO=2%, IO=7.5A 1.05 1.4 Isc Short Circuit Current (VIN-VO) = 1.5 to 5.75V 8.5 IO(min) IADJ (VIN-VO) = 1.5 to 5.75V 5 10 Adjust Pin Current IO = 10mA to 7.5A 40 ct Adjust Pin Current Change IO = 10mA to 7.5A, (VIN-VO) = 1.5 to 5.75V SVR Supply Voltage Rejection f = 120 Hz, CO = 25 F, IO = 7.5A, (VIN-VO)=3V, VPP=1V RMS Output Noise Voltage (% of VO) TA = 25C, f =10Hz to 10kHz, IO=10mA, (VIN-VO) = 3V eN TSHDN THYST (s) Minimum Load Current IADJ Thermal Shutdown Threshold Thermal Shutdown Hysteresis e t e l so b O e t le NOTE 1: See short-circuit current curve for available output current at fixed dropout. )- 0.2 u d o 60 Pr 75 80 5 0.003 o r P mA A A dB ) s t( % c u d 175 V A C 5 C Table 5: Electrical Characteristics Of KD1083#15 (VIN=3.25V, CI = C O =10F, Tj = -40 to 125C, unless otherwise specified.) Symbol VO VO Line Regulation Load Regulation Vd Dropout Voltage o s b O - Min. Typ. Max. Unit IO=10mA, (VIN-VO)=3V, Tj = 25C 1.485 1.5 1.515 V IO = 0 to 7.5A, (VIN-VO) = 1.5 to 5.5V (note1) IO=10mA, (VIN-VO) = 1.5 to 5.5V 1.47 1.5 1.53 V uc d o r P e so (t s) Test Conditions 0.015 0.2 % (VIN-VO)=3V, IO = 0 to 7.5A 0.3 0.5 % VO=2%, IO=7.5A 1.05 1.4 (VIN-VO) = 1.5 to 5.5V 8.5 Isc Short Circuit Current Id Quiescent Current (VIN-VO) = 1.5 to 5.5V, IO=0A Supply Voltage Rejection f = 120 Hz, CO = 25 F, IO = 7.5A, (VIN-VO) = 3V, VPP=1V RMS Output Noise Voltage (% of VO) TA = 25C, f =10Hz to 10kHz, IO=10mA, (VIN-VO)=3V t e l o SVR bs eN O o r P Output Voltage VO b O du Parameter e t e l s ( t c TSHDN THYST Thermal Shutdown Threshold Thermal Shutdown Hysteresis 5 58.6 V A 10 mA 73.4 dB 0.003 % 175 C 5 C NOTE 1: See short-circuit current curve for available output current at fixed dropout. 3/12 KD1083 Table 6: Electrical Characteristics Of KD1083#18(VIN=3.5V, C I = C O =10F, Tj = -40 to 125C, unless otherwise specified.) Symbol VO Parameter Test Conditions Min. Typ. Max. Unit Output Voltage IO=10mA, (VIN-VO)=3V, Tj = 25C 1.782 1.8 1.818 V 1.764 1.8 1.836 V VO Line Regulation IO = 0 to 7.5A, (VIN-VO) = 1.5 to 5.2V (note1) IO=10mA, (VIN-VO) = 1.5 to 5.2V 0.015 0.2 % VO Load Regulation (VIN-VO)=3V, IO = 0 to 7.5A 0.3 0.5 % 1.4 Vd Dropout Voltage VO=2%, IO=7.5A 1.05 Isc Short Circuit Current (VIN-VO) = 1.5 to 5.2V 8.5 Id Quiescent Current (VIN-VO) = 1.5 to 5.2V, IO=0A Supply Voltage Rejection f = 120 Hz, CO = 25 F, IO = 7.5A, (VIN-VO) = 3V, VPP=1V RMS Output Noise Voltage (% of VO) TA = 25C, f =10Hz to 10kHz, IO=10mA, (VIN-VO)=3V SVR eN TSHDN THYST Thermal Shutdown Threshold Thermal Shutdown Hysteresis 5 e t e l so NOTE 1: See short-circuit current curve for available output current at fixed dropout. b O 57 (s) 10 ct 71.8 u d o 0.003 Pr V A 175 dB % ) s t( C uc 5 mA C d o r P e let Table 7: Electrical Characteristics Of KD1083#25 (VIN=4.25V, CI = C O =10F, Tj = -40 to 125C, unless otherwise specified.) Symbol ct Line Regulation Load Regulation ete Vd Dropout Voltage Isc Short Circuit Current Id Quiescent Current l o s SVR du o r P VO VO d o r P e t e l o eN TSHDN s b O THYST RMS Output Noise Voltage (% of VO) Typ. Max. Unit IO=10mA, (VIN-VO)=3V, Tj = 25C 2.475 2.5 2.525 V IO = 0 to 7.5A, (VIN-VO) = 1.5 to 4.5V (note 1) IO=10mA, (VIN-VO) = 1.5 to 4.5V 2.45 2.5 2.55 V (s) b O - 0.015 0.2 % (VIN-VO)=3V, IO = 0 to 7.5A 0.3 0.5 % VO=2%, IO=7.5A 1.05 1.4 (VIN-VO) = 1.5 to 4.5V 8.5 (VIN-VO) = 1.5 to 4.5V, IO=0A f = 120 Hz, CO = 25 F, IO = 7.5A, (VIN-VO) = 3V, VPP=1V TA = 25C, f =10Hz to 10kHz, IO=10mA, (VIN-VO)=3V Thermal Shutdown Threshold Thermal Shutdown Hysteresis NOTE 1: See short-circuit current curve for available output current at fixed dropout. 4/12 Min. t c u Supply Voltage Rejection b O so Test Conditions Output Voltage VO ) (s Parameter 5 54.1 V A 10 mA 68.9 dB 0.003 % 175 C 5 C KD1083 Table 8: Electrical Characteristics Of KD1083#30 (VIN=4.75V, CI = CO =10F, Tj = -40 to 125C, unless otherwise specified.) Symbol VO Parameter Test Conditions Min. Typ. Max. Unit Output Voltage IO=10mA, (VIN-VO)=3V, Tj = 25C 2.97 3.0 3.03 V 2.94 3 3.06 V VO Line Regulation IO = 0 to 7.5A, (VIN-VO) = 1.5 to 4V (note 1) IO=10mA, (VIN-VO) = 1.5 to 4V 0.015 0.2 % VO Load Regulation (VIN-VO)=3V, IO = 0 to 7.5A 0.3 0.5 % Vd Dropout Voltage VO=2%, IO=7.5A 1.05 1.4 Isc Short Circuit Current (VIN-VO) = 1.5 to 4V 8.5 V A ) s ( t c u d o ) r s ( P t c e t u e d l o o r s P b e O t e l ) o s ( s t b c u O d o ) r s P ( t c e t u e l d o o r s P b O e t e l o s b O Id SVR eN TSHDN THYST Quiescent Current (VIN-VO) = 1.5 to 4V, IO=0A Supply Voltage Rejection f = 120 Hz, CO = 25 F, IO = 7.5A, (VIN-VO) = 3V, VPP=1V RMS Output Noise Voltage (% of VO) TA = 25C, f =10Hz to 10kHz, IO=10mA, (VIN-VO)=3V 5 52.5 Thermal Shutdown Threshold Thermal Shutdown Hysteresis 10 mA 67.3 dB 0.003 % 175 C 5 C NOTE 1: See short-circuit current curve for available output current at fixed dropout. Table 9: Electrical Characteristics Of KD1083#33 (VIN=5.0V, CI = CO =10F, Tj = -40 to 125C, unless otherwise specified.) Symbol Parameter Test Conditions Min. Typ. Max. Unit Output Voltage IO=10mA, (VIN-VO)=3V, Tj = 25C 3.267 3.3 3.333 V 3.234 3.3 3.366 V VO Line Regulation IO = 0 to 7.5A, (VIN-VO) = 1.5 to 3.7V (note 1) IO=10mA, (VIN-VO) = 1.5 to 3.7V 0.015 0.2 % VO Load Regulation (VIN-VO)=3V, IO = 0 to 7.5A 0.3 0.5 % Vd Dropout Voltage VO=2%, IO=7.5A 1.05 1.4 V Isc Short Circuit Current (VIN-VO) = 1.5 to 3.7V 8.5 Id Quiescent Current (VIN-VO) = 1.5 to 3.7V, IO=0A 10 mA Supply Voltage Rejection f = 120 Hz, CO = 25 F, IO = 7.5A, (VIN-VO) = 3V, VPP=1V RMS Output Noise Voltage (% of VO) TA = 25C, f =10Hz to 10kHz, IO=10mA, (VIN-VO)=3V VO SVR eN TSHDN THYST Thermal Shutdown Threshold Thermal Shutdown Hysteresis 5 51.7 A 66.5 dB 0.003 % 175 C 5 C NOTE 1: See short-circuit current curve for available output current at fixed dropout. 5/12 KD1083 TYPICAL CHARACTERISTICS (CI=CO=10F(tantalum), unless otherwise specified) Figure 4: Reference Voltage vs Temperature Figure 7: Line Regulation vs Temperature ) s ( t c u d o ) r s ( P t c e t u e d l o o r s P b e O t e l ) o s ( s t b c u O d o ) r s P ( t c e t u e l d o o r s P b O e t e l o s b O Figure 5: Reference Voltage vs Temperature Figure 8: Load Regulation vs Temperature Figure 6: Reference Voltage vs Temperature Figure 9: Dropout Voltage vs Temperature 6/12 KD1083 Figure 10: Dropout Voltage vs Temperature Figure 13: Minimum Load Current vs Temperature ) s ( t c u d o ) r s ( P t c e t u e d l o o r s P b e O t e l ) o s ( s t b c u O d o ) r s P ( t c e t u e l d o o r s P b O e t e l o s b O Figure 11: Adjust Pin Current vs Temperature Figure 14: Dropout Voltage vs Output Current Figure 12: Quiescent Current vs Temperature Figure 15: Supply Voltage Rejection vs Output Current 7/12 KD1083 Figure 16: Short Circuit Current vs Dropout Voltage Figure 19: Line Transient VIN VO VO=10V ) s ( t c u d o ) r s ( P t c e t u e d l o o r s P b e O t e l ) o s ( s t b c u O d o ) r s P ( t c e t u e l d o o r s P b O e t e l o s b O VIN=from 13 to 12V, I O=100mA, CI = 1F(tantalum), CO=10F(tantalum) Figure 17: Supply Voltage Rejection vs Temperature Figure 20: Load Transient VO IO VO=10V VI=12 V, I O=from 0.1A to 7.5A, CI = 10F(tantalum), CO=10F(tantalum) Figure 21: Load Transient Figure 18: Line Transient VO VIN VO IO VO=10V VO=10V VIN=from 12 to 13V, I O=100mA, CI = 1F(tantalum), CO=10F(tantalum) 8/12 VI=12 V, I O=from 7.5A to 0.1A, CI = 10F(tantalum), CO=10F(tantalum) KD1083 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 ) s ( t c u d o ) r s ( P t c e t u e d l o o r s P b e O t e l ) o s ( s t b c u O d o ) r s P ( t c e t u e l d o o r s P b O e t e l o s b O 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 4.88 5.28 0.192 D1 E 8 10 E1 G 0.315 8.5 0.409 0.335 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 9/12 KD1083 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 D1 E 1.27 0.49 0.050 0.027 ) s ( t c u d o ) r s ( P t c e t u e d l o o r s P b e O t e l ) o s ( s t b c u O d o ) r s P ( t c e t u e l d o o r s P b O e t e l o s b O 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 10/12 KD1083 Table 10: Revision History Date Revision 16-Dec-2004 2 Description of Changes Maturity Change. ) s ( t c u d o ) r s ( P t c e t u e d l o o r s P b e O t e l ) o s ( s t b c u O d o ) r s P ( t c e t u e l d o o r s P b O e t e l o s b O 11/12 KD1083 ) s ( t c u d o ) r s ( P t c e t u e d l o o r s P b e O t e l ) o s ( s t b c u O d o ) r s P ( t c e t u e l d o o r s P b O e t e l o s b O Information furnished is believed to be accurate and reliable. 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