TLE4270 Infineon Technologies, TLE4270 Datasheet - Page 3

• Manufacturer Part Number: TLE4270
• Description: IC REGULATOR LDO 5V TO220-5
• Manufacturer: Infineon Technologies

Specifications of TLE4270

• Regulator Topology: Positive Fixed
• Voltage - Output: 5V
• Voltage - Input: 6 ~ 42 V
• Voltage - Dropout (typical): 0.35V @ 550mA
• Number Of Regulators: 1
• Current - Output: 550mA (Max)
• Current - Limit (min): 650mA
• Operating Temperature: -40°C ~ 150°C
• Mounting Type: Through Hole
• Package / Case: TO-220-5 (Bent and Staggered Leads)
• Number Of Outputs: 1
• Polarity: Positive
• Input Voltage Max: 42 V
• Output Voltage: 5 V
• Output Type: Fixed
• Dropout Voltage (max): 0.7 V at 550 mA
• Output Current: 550 mA
• Line Regulation: 25 mV
• Load Regulation: 50 mV
• Voltage Regulation Accuracy: 2 %
• Maximum Operating Temperature: + 150 C
• Mounting Style: Through Hole
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: SP000011792; TLE4270NK

Circuit Description
The control amplifier compares a reference voltage, which is kept highly accurate by
resistance adjustment, to a voltage that is proportional to the output voltage and drives
the base of a series transistor via a buffer. Saturation control as a function of the load
current prevents any over-saturation of the power element.
The IC also incorporates a number of internal circuits for protection against:
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Application Description
The IC regulates an input voltage in the range of 5.5 V <
to 26 V it produces a regulated output current of more than 650 mA. Above 26 V the
save-operating-area protection allows operation up to 36 V with a regulated output
current of more than 300 mA. Overvoltage protection limits operation at 42 V. The
overvoltage protection hysteresis restores operation if the input voltage has dropped
below 36 V. A reset signal is generated for an output voltage of
power-on reset can be set externally with a capacitor.
Data Sheet
Overload
Overvoltage
Overtemperature
Reverse polarity
3
V
I
< 36 V to
V
Q
< 4.5 V. The delay for
Rev. 1.6, 2005-08-09
V
Q,nom
= 5.0 V. Up
TLE 4270