TLE4290 Datasheet Text
5-V Low Drop Voltage Regulator
TLE 4290
Features
- Output voltage 5 V ± 2%
- Very low current consumption
- 450 mA current capability
- Power Good Feature
- Very low-drop voltage
- Short-circuit-proof
- Reverse polarity proof
- Suitable for use in automotive electronics
- Green Product (RoHS pliant)
- AEC Qualified
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P-TO252-5-11
Functional Description
The TLE 4290 is a monolithic integrated low drop voltage regulator which can supply loads up to 450 mA with power good feature. An input voltage up to 42 V is regulated to VQ,nom = 5.0 V. The device is designed to supply μ-controllers in the severe environment of
P-TO263-5-1 automotive applications. Therefore it is protected against overload, short circuit and over temperature conditions. Of course the TLE 4290 can been used also in all other applications, where a stabilized 5 V voltage is required.
Type TLE 4290 D TLE 4290 G
Data Sheet
Package PG-TO252-5-11 PG-TO263-5-1
1 Rev. 1.7, 2007-03-20
TLE 4290
Power Good
The Power Good PG pin informs e.g. the microcontroller in case the output voltage has fallen below the lower threshold VQ,pgt-d of typ. 3.65 V. Connecting the regulator to a battery voltage at first the power good signal remains LOW. When the output voltage has reached the higher threshold VQ,pgt-i the power good output remains still LOW for the power good delay time trd. Afterwards the power good output turns HIGH. The delay time can be set by the user with an external capacitor at pin D according to the requirements of the application.
The Power Good circuitry supervises the output voltage. In case VQ falls below the lower Power Good switching threshold VQ,pgt-d the PG output is set LOW after the Power Good reaction time. The Power Good LOW signal is generated down to an output voltage VQ to...