I need to install some 12VDC LEDs on my dash to monitor the liquid level of the reservoir, circuit breaker, etc.. and wanna put a voltage regulator right before the LEDs so that they won't burn out in less than a week because of the fluctuating voltage of the car.
I was recommended a LM2937 voltage regulator (http://www.national.com/ds/LM/LM2937.pdf).
'Ideally suited for automotive applications, the LM2937 will
protect itself and any load circuitry from reverse battery
connections, two-battery jumps and up to +60V/−50V load
dump transients. Familiar regulator features such as short
circuit and thermal shutdown protection are also built in.'
The data sheet also recommends a low ESR capacitor (below 3Ω)
Are these two components all I need to make my circuit or there are more? like resistors and diodes
sorry if this question sounds stupid.. i'm new to electronics
Also, if somebody has a link to a schematic would be great.