Functional Description
The TLE 4287 G is a monolithic integrated 5 V voltage regulator in P-DSO-14-8 package. It supplies an output current IQ > 250 mA. The IC is short circuit proof and incorporates temperature protection which turns off the device at overtemperature.
The input voltage VI is regulated in the range of 7.5 V < VI < 40 V to VQ,nom = 5 V. Therefore a reference voltage, which is kept highly accurate by resistance adjustment, is compared via a control amplifier to a voltage that is proportional to the output voltage. The control amplifier drives the base of the series transistor by a buffer.

FEATUREs
• Output voltage tolerance ≤ ± 2%
• Very low standby current consumption
• Input voltage up to 42 V
• Reset function down to 1 V output voltage
• ESD protection up to 2000 V
• Adjustable reset time
• On/Off logic
• Overtemperature protection
• Reverse polarity protection
• Short-circuit proof
• Very wide temperature range
• Very small output capacitor