LM2733 Datasheet | Texas Instruments

Product Folder Order Now Technical Documents Tools & Software Support & munity SNVS209G - NOVEMBER 2002 - REVISED MAY 2019 LM2733 0.6- and 1.6-MHz Boost Converters With 40-V Internal FET Switch in SOT-23 1 Features - 1 40-V DMOS FET switch - 1.6-MHz (“X”), 0.6 MHz (“Y”) Switching frequency - Low RDS(ON) DMOS FET - Switch current up to 1 A - Wide input voltage 2.7 V to 14 V - Low shutdown current (< 1 µA) - 5-Pin SOT-23 package - Uses tiny capacitors and inductors - Cycle-by-cycle current limiting - Internally pensated 2 Applications - White LED current source - PDAs and palm-top puters - Digital cameras - Portable phones and games - Local boost regulator 3 Description The LM2733 switching regulators are current-mode boost converters operating fixed frequency 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-A switch and use of small inductors and capacitors, results in the industry's highest power density. The 40-V internal switch makes these solutions perfect for boosting to voltages of 16 V or greater. These parts have a logic-level shutdown pin that can be used to reduce quiescent current and extend battery...