Up To 4a Uldo Linear Regulator

The L4957 devices are Ultra Low Drop Output lin- ear Regulators with an internal N-channel MOS of 200m particulary suitable for low voltage/low dropout applications. Operating with a input voltage from 3V to 6.5V they are capable to deliver up to 4A at 1.5V or 2.5V fixed output voltages. The devices are ideal for use as one of the sup- plies required by processor, for example they are the cost effective and efficient solution for conver- sion from 3.3V (rail bus) to 2.5V @ 2.5A or to 1.5V with high current rating. Fast response transient minimise the output ca- pacitor value. A minimum of 22F assures the stability in all load conditions. The on-chip trimming technique offers a tighter Voltage Reference tolerance (with 2% including line and load variation) beside to ensure a con- trolled short circuit current. Thermal shutdown provides protection against overload conditions that creates excessive junction temperature. By STMicroelectronics
L4957 's PackagesL4957 's pdf datasheet



L4957 Pinout, Pinouts
L4957 pinout,Pin out
This is one package pinout of L4957,If you need more pinouts please download L4957's pdf datasheet.

L4957 Application circuits
L4957 circuits
This is one application circuit of L4957,If you need more circuits,please download L4957's pdf datasheet.


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