LM2733是TI公司的一款转换器（集成开关）产品，LM2733是具有 40V 内部 FET 开关（采用 SOT-23 封装）的 0.6/1.6 MHz 升压转换器，本页介绍了LM2733的产品说明、应用、特性等，并给出了与LM2733相关的TI元器件型号供参考。
LM2733 - 具有 40V 内部 FET 开关（采用 SOT-23 封装）的 0.6/1.6 MHz 升压转换器 - 转换器（集成开关） - DC/DC开关稳压器 - TI公司（Texas Instruments，德州仪器）
- 40-V DMOS FET Switch
- 1.6 MHz (“X”), 0.6 MHz (“Y”) Switching Frequency
- Low RDS(ON) DMOS FET
- Switch Current up to 1A
- Wide Input Voltage Range (2.7 V – 14 V)
- Low Shutdown Current (< 1 µA)
- 5-Lead SOT-23 Package
- Uses Tiny Capacitors and Inductors
- Cycle-by-Cycle Current Limiting
- Internally Compensated
- White LED Current Source
- PDA’s and Palm-Top Computers
- Digital Cameras
- Portable Phones and Games
- Local Boost Regulator
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 result 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.
| PART NUMBER | PACKAGE | BODY SIZE (NOM) |
|---|---|---|
| LM2733 | SOT-23 (5) | 2.90 mm x 1.60 mm |
