LM2733

Product Folder Order Now Technical Documents Tools & Software Support & Community LM2733 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 compensated 2 Applications White LED current source PDAs and palm-top computers 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 kHz (“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 life. Protection is provided through cycle-by-cycle current limiting and thermal shutdown. Internal compensation simplifies design and reduces component count. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) LM2733 SOT-23 (5) 2.90 mm × 1.60 mm (1) ...