Voltage Regulator
TLE 4274 / 3.3V;2.5V
Features
•
•
•
•
•
•
Output voltage: 3.3 V/2.5 V
±
4%
Current capability 400 mA
Very low current consumption
Short-circuit proof
Reverse polarity proof
Suitable for use in automotive electronics
P-SOT223-4
Functional Description
The TLE 4274 / 3.3V;2.5V is a voltage regulator available
in a SOT223 and TO252 package. The IC regulates an
input voltage up to 40 V to
V
Qrated
= 3.3 V/2.5 V. The
maximum output current is 400 mA. The IC is short-
circuit proof and has a shutdown circuit protecting it
against overtemperature. The TLE 4274 is also available
as 5 V, 8.5 V and 10 V version. Please refer to the data
sheet TLE 4274.
Dimensioning Information on External Components
The input capacitor
C
I
is necessary for compensating line influences. Using a resistor of
approx. 1
Ω
in series with
C
I
, the oscillating of input inductivity and input capacitance can
be damped. The output capacitor
C
Q
is necessary for the stability of the regulation circuit.
Stability is guaranteed for capacities
C
Q
≥
10
µ
F with an ESR of
≤
2.5
Ω
within the
operating temperature range.
P-TO252-3-1
Type
TLE 4274 GSV33
TLE 4274 DV33
TLE 4274 GSV25
Data Sheet
Ordering Code
Q67006-A9289
Q67006-A9348
Q67006-A9359
1
Package
P-SOT223-4-1
P-TO252-3-1
P-SOT223-4-1
Rev. 2.1, 2004-01-01
INFINEON [ INFINEON TECHNOLOGIES AG ]
