LM2731 Datasheet | Texas Instruments

Product Folder Sample & Buy Technical Documents Tools & Software Support & munity SNVS217G - MAY 2004 - REVISED SEPTEMBER 2015 LM2731 0.6/1.6-MHz Boost Converters With 22-V Internal FET Switch in SOT-23 1 Features - 1 22-V DMOS FET Switch - 1.6-MHz (X Option), 0.6-MHz (Y Option) Switching Frequency - Low RDS(ON) DMOS FET - Switch Current Up to 1.8 A - Wide Input Voltage Range (2.7 V to 14 V) - Low Shutdown Current (<1 µA) - 5-Lead SOT-23 Package - Uses Tiny Capacitors and Inductors - Cycle-by-Cycle Current Limiting - Internally pensated 2 Applications - White LED Current Sources - PDAs and Palm-Top puters - Digital Cameras - Portable Phones and Games - Local Boost Regulators 3 Description The LM2731 switching regulators are current-mode boost converters operating at fixed frequencies of 1.6 MHz (X option) and 600 k Hz (Y option). The use of SOT-23 package, made possible by the minimal power loss of the internal 1.8-A switch, and use of small inductors and capacitors result in the highest power density of the industry. The 22-V internal switch makes these solutions perfect for boosting to voltages up to 20...