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TLE4274

Infineon
Part Number TLE4274
Manufacturer Infineon
Description Low Drop Voltage Regulator
Published Aug 20, 2012
Detailed Description Low Drop Voltage Regulator TLE 4274 Features • Output voltage 5 V, 8.5 V or 10 V • Output voltage tolerance ≤ ±4% • Cu...
Datasheet PDF File TLE4274 PDF File

TLE4274
TLE4274

Overview
Low Drop Voltage Regulator TLE 4274 Features • Output voltage 5 V, 8.
5 V or 10 V • Output voltage tolerance ≤ ±4% • Current capability 400 mA • Low-drop voltage • Very low current consumption • Short-circuit proof • Reverse polarity proof ^ • Suitable for use in automotive electronics • Green Product (RoHS compliant) version of TLE 4274 • AEC qualified Functional Description The TLE 4274 is a low drop voltage regulator available in a TO220, TO252 and TO263 package.
The IC regulates an input voltage up to 40 V to VQrated = 5.
0 V (V50), 8.
5 V (V85) and 10 V (V10).
The maximum output current is 400 mA.
The IC is short-circuit proof and incorporates temperature protection that disables the IC at overtemperature.
A 3.
3 V and 2.
5 V version is also available.
For information about the low output voltage types please refer to the data sheet TLE 4274 / 3.
3 V; 2.
5 V.
P-TO220-3-1 PG-TO220-3-1 P-TO252-3-11 PG-TO252-3-11 P-TO263-3-1 PG-TO263-3-1 Type TLE 4274 V10 TLE 4274 V50 TLE 4274 V85 TLE 4274 DV50 TLE 4274 GV10 TLE 4274 GV50 TLE 4274 GV85 Data Sheet Package PG-TO220-3-1 (RoHS compliant) PG-TO220-3-1 (RoHS compliant) PG-TO220-3-1 (RoHS compliant) PG-TO252-3-11 (RoHS compliant) PG-TO263-3-1 (RoHS compliant) PG-TO263-3-1 (RoHS compliant) PG-TO263-3-1 (RoHS compliant) 1 Rev.
1.
7, 2011-01-20 TLE 4274 Dimensioning Information on External Components The input capacitor CI is necessary for compensating line influences.
Using a resistor of approx.
1 Ω in series with CI, the oscillating of input inductivity and input capacitance can be damped.
The output capacitor CQ is necessary for the stability of the regulation circuit.
Stability is guaranteed at values CQ ≥ 22 μF and an ESR of ≤ 3 Ω within the operating temperature range.
Circuit Description The control amplifier compares a reference voltage to a voltage that is proportional to the output voltage and drives the base of the series transistor via a buffer.
Saturation control as a function of the load current prevents any o...


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