LM2731 Datasheet PDF - National

General Description

●The LM2731 switching regulators are current-mode boost converters operating at fixed frequencies of 1.6 MHz (“X” option) and 600 kHz (“Y” option).

●The use of SOT-23 package, made possible by the minimal power loss of the internal 1.8A switch, and use of small inductors and capacitors result in the industry’s highest power density. The 22V internal switch makes these solutions perfect for boosting to voltages up to 20V.

●Features

●22V DMOS FET switch

●1.6 MHz (“X”), 0.6 MHz (“Y”) switching frequency

●Low RDS(ON) DMOS FET

●Switch current up to 1.8A

●Wide input voltage range (2.7V–14V)

●Low shutdown current (<1 µA)

●5-Lead SOT-23 package

●Uses tiny capacitors and inductors

●Cycle-by-cycle current limiting

●Internally compensated