LD39100

Application information

DocID15676 Rev 6

15/27

6

Application information

The LD39100 is an ultra low-dropout linear regulator. It provides up to 1 A with a low 200

mV dropout. The input voltage range is from 1.5 V to 5.5 V. The device is available in fixed

and adjustable output versions.

The regulator is equipped with internal protection circuitry, such as short-circuit current

limiting and thermal protection.

The regulator is stable with ceramic capacitors on the input and the output. Recommended

values of the input and output ceramic capacitors are from 1 µF to 22 µF with 1 µF typical.

capacitor has also to be connected within 1 c

m from output pin. There isn’t any upper limit

to the value of the input capacitor.

Figure 32: "Typical application circuit for fixed output version" and Figure 33: "Typical

application circuit for adjustable version" illustrate the typical application schematics:

Figure 32: Typical application circuit for fixed output version

Figure 33: Typical application circuit for adjustable version