Datasheet
Type Package
TLE 4274 GSV33 PG-SOT223-4
TLE 4274 DV33 PG-TO252-3-11
TLE 4274 GSV25 PG-SOT223-4
Voltage Regulator
TLE 4274 / 3.3V;2.5V
P-SOT223-4
P-TO252-3-1
Data Sheet 1 Rev. 2.3, 2008-03-10
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
• Green Product (RoHS compliant)
• AEC Qualified
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 µF with an ESR of ≤ 2.5 Ω within the
operating temperature range.