L7818CV Positive Voltage Regulator 18V 1.5A TO-220

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L7818CV Positive Voltage Regulator 18V 1.5A TO-220 The L7818CV is a three-terminal positive voltage regulator part of the L78 series . It is designed for a wide range of applications, specifically providing local on-card regulation to eliminate distribution problems associated with single-point regulation . Each IC is essentially indestructible, as it embeds internal current limiting, thermal shut-down, and safe area protection . While primarily designed as a fixed voltage regulator, it can be used with external components to achieve adjustable voltages and currents . Features High Output Current Fixed Output Voltage Thermal Overload Protection Short Circuit Protection Output Transition SOA Protection Specifications Parameter Specification Unit / Condition Output Voltage (V O ) 18 V (Typical) Max DC Input Voltage (V I ) 35 V (for V O = 5 to 18 V) Output Current (I O ) Up to 1.5 A (Internally limited) Dropout Voltage (V d ) 2 V (at I O = 1 A, T J = 25 °C) Quiescent Current (I d ) 8 mA (Typical at T J = 25 °C) Line Regulation (ΔV O ) 360 mV (Max, V I = 21 to 33 V, T J = 25 °C) Load Regulation (ΔV O ) 360 mV (Max, I O = 5 mA to 1.5 A, T J = 25 °C) Supply Voltage Rejection (SVR) 53 dB (Typical, f = 120 Hz) Operating Junction Temperature (T OP ) 0 to 125 °C Package Type TO-220 Through-hole Thermal Resistance (Junction-Case) 5 °C/W Thermal Resistance (Junction-Ambient) 50 °C/W Dim. mm Min. Typ. Max. A 4.40 4.60 b 0.61 0.88 b1 1.14 1.70 c 0.48 0.70 D 15.25 15.75 E 10.00 10.40 e 2.40 2.70 e1 4.95 5.15 F 0.51 0.60 H1 6.20 6.60 J1 2.40 2.72 L 13.00 14.00 L1 3.50 3.93 L20 16.40 L30 28.90 ∅P 3.75 3.85 Q 2.65 2.95 Applications Local On-Card Regulation Fixed Voltage Power Supplies Adjustable Voltage/Current Regulators High Current Voltage Regulation Package Content 1 x L7818CV Positive Voltage Regulator 18V 1.5A TO-220 DataSheet L7818CV