ILE4264G

TECHNICAL DATA 5-V Low-Drop Fixed-Voltage Regulator ILE4264G ILE 4264 G is a 5-V low-drop fixed-voltage regulator in an SOT-223 package. The IC regulates an input voltage VI in the range 5.5 V < VI < 45 V to VQrated = 5.0 V. The maximum output current is more than 120 mA. This IC is shortcircuit-proof and features temperature protection that disables the circuit at overtemperature. Features: Output voltage tolerance ≤ ± 2 % Low-drop voltage Very low current consumption Overtemperature protection Short-circuit proof Suitable for use in automotive electronics Reverse polarity. ILE 4264G P-SOT223-4-1 Dimensioning Information on External Components The input capacitor Ci is necessary for compensating line influences. Using a resistor of approx. 1 Ω in series with Ci, the oscillating of input inductivity and input capacitance can be clamped. The output capacitor CQ is necessary for the stability of the regulating circuit. Stability is guaranteed at values CQ ≥ 10µF and an ESR ≤ 10Ω within the operating temperature range. Pin Definitions and Functions Pin Symbol Function 1 VI Input voltage; block to ground directly on IC with ceramic capacitor 2, 4 GND Ground 3 VQ 5-V output voltage; block to ground with ≥ 10-µF Ω capacitor, ESR < 10 Ω Circuit Description The control amplifier compares a reference voltage, which is kept highly precise by resistance adjustment, to a voltage that is proportional to the output voltage and drives the base of the series transistor ...