TLE 4276V Infineon Technologies, TLE 4276V Datasheet - Page 2

• Manufacturer Part Number: TLE 4276V
• Manufacturer: Infineon Technologies

Specifications of TLE 4276V

• Packages: PG-TO220-5
• Regulator Type: single output
• Output Voltage: adj.
• Accuracy: 4.0 %
• Max. Output Current: 400mA
• Dropout Voltage: 250mV

Functional Description
The TLE 4276 is a low-drop voltage regulator in a TO package. The IC regulates an input
voltage up to 40 V to
(V). The maximum output current is 400 mA. The IC can be switched off via the inhibit
input, which causes the current consumption to drop below 10 A. The IC is short-circuit-
proof and includes temperature protection which turns off the device at overtemperature.
Dimensioning Information on External Components
The input capacitor
of approx. 1
can be damped. The output capacitor
circuit. Stability is guaranteed at values
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 oversaturation of the power element. The
IC also incorporates a number of internal circuits for protection against:
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•
•
Data Sheet
Overload
Overtemperature
Reverse polarity
in series with
C
V
I
Q,nom
is necessary for compensation of line influences. Using a resistor
= 5.0 V (V50), 8.5 V (V85), 10 V (V10) and adjustable voltage
C
I
, the oscillating of input inductivity and input capacitance
C
Q
C
is necessary for the stability of the regulation
Q
2
22 F and an ESR of
Rev. 2.7, 2007-10-23
3
TLE 4276
within the