KD1083D2T18

KD1083 STMICROELECTRONICS | Alldatasheet

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Technical content

■ THREE TERMINAL ADJUSTABLE OR FIXED ■ 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 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. KD1083 7.5A LOW DROP POSITIVE VOLTAGE REGULATOR ADJUSTABLE AND FIXED This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice. SCHEMATIC DIAGRAM TO-220 D 2PAK PRELIMINARY DATA

Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied. THERMAL DATA CONNECTION DIAGRAM (top view) ORDERING CODES (*) Available in Tape & Reel with the suffix "R" for fixed version and "-R" for adjustable version. TYPICAL APPLICATION CIRCUITS Symbol Parameter Value Unit VIN DC Input to Output Voltage from -0.3 to 10 V IO Output Current Internally Limited A P D Power Dissipation Internally Limited W Tstg Storage Temperature Range -55 to +150 °C Top Operating Junction Temperature Range -40 to +125 °C Symbol Parameter TO-220 D 2PAK Unit Rthj-case Thermal Resistance Junction-case 3 3 °C/W Rthj-amb Thermal Resistance Junction-ambient 50 62.5 °C/W TO-220 D 2PAK TO-220 D 2PAK(*) OUTPUT VOLTAGE KD1083V15 KD1083D2T15 1.5V KD1083V18 KD1083D2T18 1.8V KD1083V25 KD1083D2T25 2.5V KD1083V30 KD1083D2T30 3.0V KD1083V33 KD1083D2T33 3.3V KD1083V KD1083D2T Adjustable R 2VO =V REF (1 + )R 1

ELECTRICAL CHARACTERISTICS OF KD1083 (VIN=3V, CI=C O =10µF, Tj= -40 to 125°C, unless otherwise specified.) NOTE 1: See short-circuit current curve for available output current at fixed dropout. ELECTRICAL CHARACTERISTICS OF KD1083#15 (VIN=3.25V, CI=C O =10µF, Tj= -40 to 125°C, unless otherwise specified.) NOTE 1: See short-circuit current curve for available output current at fixed dropout. Symbol Parameter Test Conditions Min. Typ. Max. Unit VREF Reference Voltage I O =10mA , (VIN-VO )=3 V ,Tj= 25°C 1.237 1.25 1.262 V IO = 0.01 to 7.5A, (VIN-VO ) = 1.5 to 5.75V (note1) 1.225 1.25 1.275 V Δ VREF Line Regulation I O =10mA, (VIN-VO ) = 1.5 to 5.75V 0.015 0.2 % Δ VREF Load Regulation (V IN-VO )=3V, IO = 10mA to 7.5A 0.3 0.5 % Vd Dropout Voltage ΔVO =2%, IO =7.5A 1.05 1.4 V Isc Short Circuit Current (V IN-VO ) = 1.5 to 5.75V 8.5 A IO(min) Minimum Load Current (V IN-VO ) = 1.5 to 5.75V 5 10 mA IADJ Adjust Pin Current I O = 10mA to 7.5A 40 80 µA ΔIADJ Adjust Pin Current Change IO = 10mA to 7.5A, (VIN-VO ) = 1.5 to 5.75V 0.2 5 µA SVR Supply Voltage Rejection f = 120 Hz, CO =2 5µF, IO = 7.5A, (VIN-VO )=3V, VPP =1V 60 75 dB eN RMS Output Noise Voltage (% of VO ) TA = 25°C, f =10Hz to 10kHz, IO =10mA, (VIN-VO )=3 V 0.003 % TSHDN Thermal Shutdown Threshold 175 °C THYST Thermal Shutdown Hysteresis 5° C Symbol Parameter Test Conditions Min. Typ. Max. Unit V O Output Voltage I O =10mA , (VIN-VO )=3V, Tj= 25°C 1.485 1.5 1.515 V IO = 0 to 7.5A, (VIN-VO ) = 1.5 to 5.5V (note1) 1.47 1.5 1.53 V ΔV O Line Regulation I O =10mA, (VIN-VO ) = 1.5 to 5.5V 0.015 0.2 % ΔV O Load Regulation (V IN-VO )=3V, IO = 0 to 7.5A 0.3 0.5 % Vd Dropout Voltage ΔVO =2%, IO =7.5A 1.05 1.4 V Isc Short Circuit Current (V IN-VO ) = 1.5 to 5.5V 8.5 A Id Quiescent Current (V IN-VO ) = 1.5 to 5.5V, IO =0A 5 10 mA SVR Supply Voltage Rejection f = 120 Hz, CO =2 5µF, IO = 7.5A, (VIN-VO )=3 V ,VPP =1V 58.6 73.4 dB eN RMS Output Noise Voltage (% of VO ) TA = 25°C, f =10Hz to 10kHz, IO =10mA, (VIN-VO )=3V 0.003 % TSHDN Thermal Shutdown Threshold 175 °C THYST Thermal Shutdown Hysteresis 5° C

ELECTRICAL CHARACTERISTICS OF KD1083#18 (VIN=3.5V, CI=C O =10µF, Tj= -40 to 125°C, unless otherwise specified.) NOTE 1: See short-circuit current curve for available output current at fixed dropout. ELECTRICAL CHARACTERISTICS OF KD1083#25 (VIN=4.25V, CI=C O =10µF, Tj= -40 to 125°C, unless otherwise specified.) NOTE 1: See short-circuit current curve for available output current at fixed dropout. Symbol Parameter Test Conditions Min. Typ. Max. Unit VO Output Voltage I O =10mA , (VIN-VO )=3V, Tj= 25°C 1.782 1.8 1.818 V IO = 0 to 7.5A, (VIN-VO ) = 1.5 to 5.2V (note1) 1.764 1.8 1.836 V ΔV O Line Regulation I O =10mA, (VIN-VO ) = 1.5 to 5.2V 0.015 0.2 % ΔV O Load Regulation (V IN-VO )=3V, IO = 0 to 7.5A 0.3 0.5 % Vd Dropout Voltage ΔVO =2%, IO =7.5A 1.05 1.4 V Isc Short Circuit Current (V IN-VO ) = 1.5 to 5.2V 8.5 A Id Quiescent Current (V IN-VO ) = 1.5 to 5.2V, IO =0A 5 10 mA SVR Supply Voltage Rejection f = 120 Hz, CO =2 5µF, IO = 7.5A, (VIN-VO )=3 V ,VPP =1V 57 71.8 dB eN RMS Output Noise Voltage (% of VO ) TA = 25°C, f =10Hz to 10kHz, IO =10mA, (VIN-VO )=3V 0.003 % TSHDN Thermal Shutdown Threshold 175 °C THYST Thermal Shutdown Hysteresis 5° C Symbol Parameter Test Conditions Min. Typ. Max. Unit V O Output Voltage I O =10mA , (VIN-VO )=3V, Tj= 25°C 2.475 2.5 2.525 V IO = 0 to 7.5A, (VIN-VO ) = 1.5 to 4.5V (note 1) 2.45 2.5 2.55 V ΔV O Line Regulation I O =10mA, (VIN-VO ) = 1.5 to 4.5V 0.015 0.2 % ΔV O Load Regulation (V IN-VO )=3V, IO = 0 to 7.5A 0.3 0.5 % Vd Dropout Voltage ΔVO =2%, IO =7.5A 1.05 1.4 V Isc Short Circuit Current (V IN-VO ) = 1.5 to 4.5V 8.5 A Id Quiescent Current (V IN-VO ) = 1.5 to 4.5V, IO =0A 5 10 mA SVR Supply Voltage Rejection f = 120 Hz, CO =2 5µF, IO = 7.5A, (VIN-VO )=3 V ,VPP =1V 54.1 68.9 dB eN RMS Output Noise Voltage (% of VO ) TA = 25°C, f =10Hz to 10kHz, IO =10mA, (VIN-VO )=3V 0.003 % TSHDN Thermal Shutdown Threshold 175 °C THYST Thermal Shutdown Hysteresis 5° C

ELECTRICAL CHARACTERISTICS OF KD1083#30 (VIN=4.75V, CI=C O =10µF, Tj= -40 to 125°C, unless otherwise specified.) NOTE 1: See short-circuit current curve for available output current at fixed dropout. ELECTRICAL CHARACTERISTICS OF KD1083#33 (VIN=5.0V, CI=C O =10µF, Tj= -40 to 125°C, unless otherwise specified.) NOTE 1: See short-circuit current curve for available output current at fixed dropout. Symbol Parameter Test Conditions Min. Typ. Max. Unit VO Output Voltage I O =10mA , (VIN-VO )=3V, Tj= 25°C 2.97 3.0 3.03 V IO = 0 to 7.5A, (VIN-VO ) =1 . 5t o4 V (note 1) 2.94 3 3.06 V Δ VO Line Regulation I O =10mA, (VIN-VO ) = 1.5 to 4V 0.015 0.2 % Δ VO Load Regulation (V IN-VO )=3V, IO = 0 to 7.5A 0.3 0.5 % Vd Dropout Voltage ΔVO =2%, IO =7.5A 1.05 1.4 V Isc Short Circuit Current (V IN-VO ) = 1.5 to 4V 8.5 A Id Quiescent Current (V IN-VO ) = 1.5 to 4V, IO =0A 5 10 mA SVR Supply Voltage Rejection f = 120 Hz, CO =2 5µF, IO = 7.5A, (VIN-VO )=3 V ,VPP =1V 52.5 67.3 dB eN RMS Output Noise Voltage (% of VO ) TA = 25°C, f =10Hz to 10kHz, IO =10mA, (VIN-VO )=3V 0.003 % TSHDN Thermal Shutdown Threshold 175 °C THYST Thermal Shutdown Hysteresis 5° C Symbol Parameter Test Conditions Min. Typ. Max. Unit VO Output Voltage I O =10mA , (VIN-VO )=3V, Tj= 25°C 3.267 3.3 3.333 V IO = 0 to 7.5A, (VIN-VO ) = 1.5 to 3.7V (note 1) 3.234 3.3 3.366 V Δ VO Line Regulation I O =10mA, (VIN-VO ) = 1.5 to 3.7V 0.015 0.2 % Δ VO Load Regulation (V IN-VO )=3V, IO = 0 to 7.5A 0.3 0.5 % Vd Dropout Voltage ΔVO =2%, IO =7.5A 1.05 1.4 V Isc Short Circuit Current (V IN-VO ) = 1.5 to 3.7V 8.5 A Id Quiescent Current (V IN-VO ) = 1.5 to 3.7V, IO =0A 5 10 mA SVR Supply Voltage Rejection f = 120 Hz, CO =2 5µF, IO = 7.5A, (VIN-VO )=3 V ,VPP =1V 51.7 66.5 dB eN RMS Output Noise Voltage (% of VO ) TA = 25°C, f =10Hz to 10kHz, IO =10mA, (VIN-VO )=3V 0.003 % TSHDN Thermal Shutdown Threshold 175 °C THYST Thermal Shutdown Hysteresis 5° C

DIM. mm. inch 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 0.8 0.031 L4 0.6 1 0.023 0.039 DPAK MECHANI CAL DATA 0068772-B

DIM. mm. inch 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 TO-220 MECHANICAL DAT A P011C

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