KD1083 7.5A LOW DROP POSITIVE VOLTAGE REGULATOR ADJUSTABLE AND FIXED PRELIMINARY DATA ■ ■ ■ ■ ■ ■ ■ ■ ■ 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 -40°C TO 125°C PINOUT COMPATIBILITY WITH STANDARD ADJUSTABLE VREG 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 SCHEMATIC DIAGRAM October 2002 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 25°C 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 10µF minimum capacitor is required for output stability. 1/11 This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice. KD1083 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. THERMAL DATA 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 CONNECTION DIAGRAM (top view) D2PAK TO-220 ORDERING 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. TYPICAL APPLICATION CIRCUITS R2 VO = VREF (1 + ) R1 2/11 KD1083 ELECTRICAL CHARACTERISTICS OF KD1083 (VIN=3V, C I = CO =10µF, Tj = -40 to 125°C, unless otherwise specified.) Symbol VREF Parameter Test Conditions Min. Typ. Max. Unit Reference Voltage IO=10mA , (VIN-VO) = 3V, Tj = 25°C 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 V Isc Short Circuit Current (VIN-VO) = 1.5 to 5.75V 8.5 Minimum Load Current (VIN-VO) = 1.5 to 5.75V 5 10 mA Adjust Pin Current IO = 10mA to 7.5A 40 80 µA 0.2 5 IO(min) IADJ ∆IADJ 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 µF, IO = 7.5A, (VIN-VO)=3V, VPP=1V RMS Output Noise Voltage (% of VO) TA = 25°C, f =10Hz to 10kHz, IO=10mA, (VIN-VO) = 3V eN TSHDN THYST 60 Thermal Shutdown Threshold Thermal Shutdown Hysteresis A µA 75 dB 0.003 % 175 °C 5 °C NOTE 1: See short-circuit current curve for available output current at fixed dropout. ELECTRICAL CHARACTERISTICS OF KD1083#15 (VIN=3.25V, CI = CO =10µF, Tj = -40 to 125°C, unless otherwise specified.) Symbol Min. Typ. Max. Unit Output Voltage IO=10mA , (VIN-VO)=3V, Tj = 25°C 1.485 1.5 1.515 V 1.47 1.5 1.53 V ∆VO Line Regulation IO = 0 to 7.5A, (VIN-VO) = 1.5 to 5.5V (note1) IO=10mA, (VIN-VO) = 1.5 to 5.5V 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 5.5V 8.5 Id Quiescent Current (VIN-VO) = 1.5 to 5.5V, IO=0A 10 mA Supply Voltage Rejection f = 120 Hz, CO = 25 µF, IO = 7.5A, (VIN-VO) = 3V, VPP=1V RMS Output Noise Voltage (% of VO) TA = 25°C, f =10Hz to 10kHz, IO=10mA, (VIN-VO)=3V VO SVR eN TSHDN THYST Parameter Test Conditions Thermal Shutdown Threshold Thermal Shutdown Hysteresis 5 58.6 A 73.4 dB 0.003 % 175 °C 5 °C NOTE 1: See short-circuit current curve for available output current at fixed dropout. 3/11 KD1083 ELECTRICAL CHARACTERISTICS OF KD1083#18(VIN=3.5V, CI = CO =10µF, Tj = -40 to 125°C, unless otherwise specified.) Symbol VO Parameter Test Conditions Min. Typ. Max. Unit Output Voltage IO=10mA , (VIN-VO)=3V, Tj = 25°C 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 % Vd Dropout Voltage ∆VO=2%, IO=7.5A 1.05 1.4 V Isc Short Circuit Current (VIN-VO) = 1.5 to 5.2V 8.5 Id SVR eN TSHDN THYST Quiescent Current (VIN-VO) = 1.5 to 5.2V, IO=0A Supply Voltage Rejection f = 120 Hz, CO = 25 µF, IO = 7.5A, (VIN-VO) = 3V, VPP=1V RMS Output Noise Voltage (% of VO) TA = 25°C, f =10Hz to 10kHz, IO=10mA, (VIN-VO)=3V 5 57 Thermal Shutdown Threshold Thermal Shutdown Hysteresis A 10 mA 71.8 dB 0.003 % 175 °C 5 °C NOTE 1: See short-circuit current curve for available output current at fixed dropout. ELECTRICAL CHARACTERISTICS OF KD1083#25 (VIN=4.25V, CI = CO =10µF, Tj = -40 to 125°C, unless otherwise specified.) Symbol VO Min. Typ. Max. Unit Output Voltage Parameter IO=10mA , (VIN-VO)=3V, Tj = 25°C Test Conditions 2.475 2.5 2.525 V 2.45 2.5 2.55 V ∆VO Line Regulation IO = 0 to 7.5A, (VIN-VO) = 1.5 to 4.5V (note 1) IO=10mA, (VIN-VO) = 1.5 to 4.5V 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 4.5V 8.5 Id Quiescent Current (VIN-VO) = 1.5 to 4.5V, IO=0A 10 mA Supply Voltage Rejection f = 120 Hz, CO = 25 µF, IO = 7.5A, (VIN-VO) = 3V, VPP=1V RMS Output Noise Voltage (% of VO) TA = 25°C, f =10Hz to 10kHz, IO=10mA, (VIN-VO)=3V SVR eN TSHDN THYST Thermal Shutdown Threshold Thermal Shutdown Hysteresis NOTE 1: See short-circuit current curve for available output current at fixed dropout. 4/11 5 54.1 A 68.9 dB 0.003 % 175 °C 5 °C KD1083 ELECTRICAL CHARACTERISTICS OF KD1083#30 (VIN=4.75V, CI = CO =10µF, Tj = -40 to 125°C, unless otherwise specified.) Symbol VO Parameter Test Conditions Min. Typ. Max. Unit Output Voltage IO=10mA , (VIN-VO)=3V, Tj = 25°C 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 V Isc Short Circuit Current (VIN-VO) = 1.5 to 4V 8.5 Id SVR eN TSHDN THYST Quiescent Current (VIN-VO) = 1.5 to 4V, IO=0A Supply Voltage Rejection f = 120 Hz, CO = 25 µF, IO = 7.5A, (VIN-VO) = 3V, VPP=1V RMS Output Noise Voltage (% of VO) TA = 25°C, f =10Hz to 10kHz, IO=10mA, (VIN-VO)=3V 5 52.5 Thermal Shutdown Threshold Thermal Shutdown Hysteresis A 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. ELECTRICAL CHARACTERISTICS OF KD1083#33 (VIN=5.0V, CI = CO =10µF, Tj = -40 to 125°C, unless otherwise specified.) Symbol Parameter Min. Typ. Max. Unit 3.267 3.3 3.333 V 3.234 3.3 3.366 V ∆VO Line Regulation 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 µF, IO = 7.5A, (VIN-VO) = 3V, VPP=1V RMS Output Noise Voltage (% of VO) TA = 25°C, f =10Hz to 10kHz, IO=10mA, (VIN-VO)=3V SVR eN TSHDN THYST Output Voltage Test Conditions IO=10mA , (VIN-VO)=3V, Tj = 25°C IO = 0 to 7.5A, (VIN-VO) = 1.5 to 3.7V (note 1) IO=10mA, (VIN-VO) = 1.5 to 3.7V VO 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. 5/11 KD1083 TYPICAL CHARACTERISTICS (CI=CO=10µF(tantalum), unless otherwise specified) Figure 1 : Reference Voltage vs Temperature Figure 4 : Line Regulation vs Temperature Figure 2 : Reference Voltage vs Temperature Figure 5 : Load Regulation vs Temperature Figure 3 : Reference Voltage vs Temperature Figure 6 : Dropout Voltage vs Temperature 6/11 KD1083 Figure 7 : Dropout Voltage vs Temperature Figure 10 : Minimum Load Current vs Temperature Figure 8 : Adjust Pin Current vs Temperature Figure 11 : Dropout Voltage vs Output Current Figure 9 : Quiescent Current vs Temperature Figure 12 : Supply Voltage Rejection vs Output Current 7/11 KD1083 Figure 13 : Short Circuit Current vs Dropout Voltage Figure 16 : Line Transient VIN VO VO=10V VIN=from 13 to 12V, I O=100mA, CI = 1µF(tantalum), CO=10µF(tantalum) Figure 14 : Supply Voltage Rejection vs Temperature Figure 17 : Load Transient VO IO VO=10V VI=12 V, I O=from 0.1A to 7.5A, CI = 10µF(tantalum), CO=10µF(tantalum) Figure 15 : Line Transient Figure 18 : Load Transient VIN VO VO IO VO=10V VO=10V VIN=from 12 to 13V, I O=100mA, CI = 1µF(tantalum), CO=10µF(tantalum) 8/11 VI=12 V, I O=from 7.5A to 0.1A, CI = 10µF(tantalum), CO=10µF(tantalum) KD1083 DPAK MECHANICAL DATA mm. inch DIM. MIN. TYP MAX. MIN. TYP. MAX. A 2.2 2.4 0.086 0.094 A1 0.9 1.1 0.035 0.043 A2 0.03 0.23 0.001 0.009 B 0.64 0.9 0.025 0.035 B2 5.2 5.4 0.204 0.212 C 0.45 0.6 0.017 0.023 C2 0.48 0.6 0.019 0.023 D 6 6.2 0.236 0.244 E 6.4 6.6 0.252 0.260 G 4.4 4.6 0.173 0.181 H 9.35 10.1 0.368 0.397 L2 L4 0.8 0.6 0.031 1 0.023 0.039 0068772-B 9/11 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 D1 1.27 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 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 10/11 KD1083 Information furnished is believed to be accurate and reliable. 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