ILE4267 Datasheet, PDF (1/10 Pages) Integral Corp. – 5-V Low-Drop Voltage Regulator

TECHNICAL DATA
5-V Low-Drop Voltage Regulator
ILE4267
ILE 4267 is a 5-V low-drop voltage regulator in a
TO220-7 package. It supplies an output current of > 400
mA. The IC is shortcircuit-proof and incorporates
temperature protection that disables the IC at
overtemperature.
Features
• Output voltage tolerance ≤ ± 2 %
• 400 mA output current capability
• Low-drop voltage
• Very low standby current consumption
• Input voltage up to 40 V
• Overvoltage protection up to 60 V (≤ 400 ms)
• Reset function down to 1 V output voltage
• ESD protection up to 2000 V
• Adjustable reset time
• On/off logic
• Overtemperature protection
• Reverse polarity protection
• Short-circuit proof
• Wide temperature range
• Suitable for use in automotive electronics
Application
The IC regulates an input voltage V, in the range 5.5 V < Vi < 40 V to V_Qrated = 5.0 V. A
reset signal is generated for an output voltage VQ of < 4.5 V. The reset delay can be set
with an external capacitor. The device has two logic inputs. It is turned-ON by a voltage of
> 4 V on E2 by the ignition for example. It remains active as a function of the voltage on
E6, even if the voltage on E2 goes Low. This makes it possible to implement a self-holding
circuit without external components. When the device is turned-OFF, the output voltage
drops to 0 V and current consumption tends towards 0 µA.
Design Notes for External Components
The input capacitor Ci is necessary for compensation 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. The output capacitor is necessary for the stability of the
regulating circuit. Stability is guaranteed at values of ≥ 22 µF and an ESR of ≤ 3 Ω within
the operating temperature range.
1