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Número de pieza | ILE4267 | |
Descripción | 5V Low-Drop Voltage Regulator | |
Fabricantes | IK Semiconductor | |
Logotipo | ||
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No Preview Available ! 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 VQrated = 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
1 page ILE4267
Operating Range
Parameter
Input voltage
Junction temperature
Limit Values
Symbol
min. max.
Vi 5.5 40
TJ -40 150
Unit
Notes
V see diagram
°C -
Electrical Characteristics
Vi = 13.5 V; - 40 °C < TJ < 125 °C; VE2 > 4 V (unless specified otherwise)
Parameter
Output voltage
Symbol
Limit Values
min. typ. max.
VQ 4.9 5 5.1
Output voltage
VQ 4.9 5 5.1
Output-current limiting
Current consumption
Iq = Ii - IQ
Current consumption
Iq = Ii - IQ
Current consumption
Iq = Ii - IQ
Current consumption
Iq = Ii - IQ
Current consumption
Iq = Ii - I
Drop voltage
Load regulation
IQ
Iq
Iq
Iq
Iq
Iq
VDr
∆VQ
500 -
——
— 1.0
— 1.3
——
——
- 0.3
--
-
50
10
4
60
80
0.6
50
Unit Test Condition
V 5 mA ≤ IQ ≤ 400 mA
6 V ≤ Vi ≤ 26 V
V 5mA ≤ IQ ≤ 150 mA
6 V ≤ Vi ≤ 40 V
mA TJ = 25 °C
µA Regulator-OFF
mA TJ = 25 °C
IC turned off
mA IQ = 5 mA
IC turned on
mA IQ = 400 mA
mA IQ = 400 mA
VI = 5 V
V IQ = 400 mA1)
mV 5 mA ≤. IQ ≤ 400 mA
Supply-voltage
regulation
∆VQ
Supply-voltage rejection SVR
Longterm stability
∆VQ
— 15
— 54
-0
25
—
-
mV Vi = 6 to 36 V;
IQ = 5 mA
dB Fr = 100Hz;
Vr = 0.5Vpp
mV 1000 h
1) Drop voltage = VI – VQ (measured when the output voltage VQ has dropped 100 mV from the
nominal value obtained at VI = 13.5 V)
5
5 Page |
Páginas | Total 10 Páginas | |
PDF Descargar | [ Datasheet ILE4267.PDF ] |
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