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ILE4270

IK Semiconductor
Part Number ILE4270
Manufacturer IK Semiconductor
Description 5-V Low-Drop Fixed Voltage Regulator
Published Jan 17, 2016
Detailed Description TECHNICAL DATA 5-V Low-Drop Fixed Voltage Regulator ILE4270 Functional Description This device is a 5-V low-drop fixe...
Datasheet PDF File ILE4270 PDF File

ILE4270
ILE4270

Overview
TECHNICAL DATA 5-V Low-Drop Fixed Voltage Regulator ILE4270 Functional Description This device is a 5-V low-drop fixed-voltage regulator.
The maximum input voltage is 42 V (65 V, ≤400 ms).
Up to an input voltage of 26 V and for an output current up to 550 mA it regulates the output voltage within a 2 % accuracy.
The short circuit protection limits the output current of more than 650 mA.
The device incorporates over voltage protection and temperature protection that disables the circuit at unpermissibly high temperatures.
ILE4270G ILE4270S Features • Output voltage tolerance ≤ ± 2 % • Low-drop voltage • Integrated overtemperature protection • Reverse polarity protection • Input voltage up to 42 V • Overvoltage protection up to 65 V (≤ 400 ms) • Short-circuit proof • Suitable for use in automotive electronics • Wide temperature range • Adjustable reset time • ESD protection > 4000 V ILE 4270G P-ТО263-5-1 ILE 4270S P-TO220-5-12 TA = -40° ÷ 125° C for all packages.
Application Description The IC regulates an input voltage in the range of 5.
5 V < VI < 36 V to VQnom = 5.
0 V.
Up to 26 V it produces a regulated output current of more than 550 mA.
Above 26 V the saveoperating-area protection allows operation up to 36 V with a regulated output current of more than 300 mA.
Overvoltage protection limits operation at 42 V.
The overvoltage protection hysteresis restores operation if the input voltage has dropped below 36 V.
A reset signal is generated for an output voltage of VQ < 4.
5 V.
The delay for power-on reset can be set externally with a capacitor.
Design Notes for External Components An input capacitor CI is necessary for compensation of line influences.
The resonant circuit consisting of lead inductance and input capacitance can be damped by a resistor of approx.
1 Ω in series with CI.
An output capacitor CQ is necessary for the stability of the regulating circuit.
Stability is guaranteed at values of CQ ≥ 22 µF and an ESR of < 3 Ω.
1 Pin Configuration ILE427...


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