TLE4271 ,5 V Low-Drop Fixed Voltage Regulator5-V Low-Drop Fixed Voltage Regulator TLE 4271
TLE4271 ,5 V Low-Drop Fixed Voltage Regulator5-V Low-Drop Fixed Voltage Regulator TLE 4271
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TLE4271-2G ,5 V Low-Drop Fixed Voltage RegulatorFeatures• Output voltage tolerance ≤ ± 2% Low-drop voltage Integrated overtemperature protection ..
TLE4271G ,5 V Low-Drop Fixed Voltage RegulatorFeatures• Output voltage tolerance £– 2%• Low-drop voltage• Integrated overtemperature protection• ..
TLE4271-G ,5 V Low-Drop Fixed Voltage RegulatorFeatures• Output voltage tolerance £– 2%• Low-drop voltage• Integrated overtemperature protection• ..
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TLE4271-TLE4271G-TLE4271-G
5 V Low-Drop Fixed Voltage Regulator
( Infineon
technologies
5-V Low-Drop Fixed Voltage Regulator
Features
. Output voltage tolerance s i 2%
. Low-drop voltage
. Integrated overtemperature protection
. Reverse polarity protection
. Input voltage up to 42 V
. Overvoltage protection up to 65 V (f 400 ms)
. Short-circuit proof
. Suitable for use in automotive electronics
. Wide temperature range
. Adjustable reset and watchdog time
TLE 4271
Type Ordering Code Package
TLE 4271 Q67000-A9210-A901 P-T0220-7-1 1
TLE4271S Q67000-A9244-A901 P-T0220-7-12
TLE 4271 G Q67006-A9195-A901 P-TO263-7-1
P-T0263-7-1
V Not for new design, use TLE 4271-2 instead.
Functional Description
It is a 5-V low-drop fixed-voltage regulator. The
maximum input voltage is 42 V (65 V, s 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
P-TO 220-7-12
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.
Data Sheet Rev. 2.1 1
2000-02-1 4
( tInfinleorl TLE 4271
ec no ogles
Pin Configuration
(top view)
P-T0220-7-11 P-T0220-7-12 P-T0263-7-1
i t I 6 . l
l t I Rol D o
1 7 1 7 INH GND W
AEP01938
l t t t t I t l
ItRo|D|Q IlRoliola
INH GND IN INH GND W
AEP01939 AEP02017
Figure 1
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 k9.
GND Ground
Reset Delay; connect a capacitor to ground for delay time adjustment.
\lCDU‘l-D-
W Watchdog Input
Q 5-V Output; block to ground with 22 " capacitor, ESR < 3 S2.
Data Sheet Rev. 2.1
2000-02-1 4
