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PDF ILE4271-2 Data sheet ( Hoja de datos )

Número de pieza ILE4271-2
Descripción 5-V LOW-DROP FIXED VOLTAGE REGULATOR
Fabricantes Integral 
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No Preview Available ! ILE4271-2 Hoja de datos, Descripción, Manual

5-V LOW-DROP FIXED VOLTAGE REGULATOR
ILE4271-2
Functional Description
The 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 IC can be switched off via the inhibit input. An integrated watchdog monitors the
connected controller. The device incorporates overvoltage protection and temperature
protection that disables the circuit at unpermissibly high temperatures.
Features
o Output voltage tolerance ≤± 2%
o Low-drop voltage
o Integrated overtemperature protection
o Reverse polarity protection
o Input voltage up to 42 V
o Overvoltage protection up to 65 V (400 ms)
o Short-circuit proof
o Suitable for use in automotive electronics
o Wide temperature range
o Adjustable reset and watchdog time
Pin Definitions and Functions
Pin Symbol Function
1 I Input; block to ground directly on the IC with ceramic capacitor.
2 INH Inhibit
3 RO Reset Output; the open collector output is connected to the
5 V output via an integrated resistor of 30 kOhm
4 GND Ground
5 D Reset Delay; connect a capacitor to ground for delay time
adjustment.
6 W Watchdog Input
7 Q 5-V Output; block to ground with 22 uF capacitor, ESR < 3 Ohm.
Ver.01/20/08.2009
1 ILE4271-2e
260608
www.bms.by

1 page




ILE4271-2 pdf
ILE4271-2
Optimum reliability and life time are guaranteed if the junction temperature does not
exceed 125 oC in operating mode. Operation at up to the maximum junction temperature
of 150 oC is possible in principle. Note, however, that operation at the maximum permitted
ratings could affect the reliability of the device.
Operating Range
Parameter
Input voltage
Junction temperature
Thermal Resistance
Junction ambient
Junction case
Symbol
VI
Tj
Rthja
Rthjc
Zthjc
Limit Values
min. max.
6 40
– 40 150
– 65
70
–3
–2
Unit Notes
V–
oC –
K/W –
K/W P-TO263
K/W –
K/W t <1 ms
Characteristics
VI = 13.5 V; – 40 oC Tj 125 oC (unless otherwise specified)
Parameter, unit
Output voltage, V
Output current limiting, mA
Current
consumption, мкА,
Iq = II
Current
consumption, mA
Iq = II - IQ
Drop voltage, V
Load regulation, mV
Supply voltage
regulation, mV
Symbol
Test Condition
VQ
IQmax
Iq
6VVI 26V;
5mAIQ550mA
26VVI 36V; IQ300mA
VQ=0В
Ve=0В; IQ=0mA
Limit Values
Min.
4.90
Max.
5.10
4.90
650
5.10
50
VDr
ΔVQ(I)
ΔUQ(U)
IQ=5mA
IQ=550mA
IQ=550mA; VI=5V
IQ=550mA
5мА IQ 550mA
VI = 6 V
6BUI 26V
IQ=5mA
1,5
75
90
0.7
50
25
Note
3
Ver.01/20/08.2009
5 ILE4271-2e
260608
www.bms.by

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