LM2731 - 采用 SOT-23 封装的 0.6/1.6 MHz 升压转换器，具有 22V 内部 FET 开关

LM2731是TI德州仪器公司的一款转换器（集成开关）产品，LM2731是采用 SOT-23 封装的 0.6/1.6 MHz 升压转换器，具有 22V 内部 FET 开关，本站介绍了LM2731的封装应用图解、特点和优点、功能等，并给出了与LM2731相关的TI元器件型号供参考。

LM2731 - 采用 SOT-23 封装的 0.6/1.6 MHz 升压转换器，具有 22V 内部 FET 开关 - 转换器（集成开关） - DC/DC开关稳压器 - 德州仪器

产品特性

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 Compensated

产品应用

White LED Current Sources
PDAs and Palm-Top Computers
Digital Cameras
Portable Phones and Games
Local Boost Regulators

产品说明

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 1.8-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 V.

These parts have a logic-level shutdown pin that can 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.

产品器件信息

PART NUMBER	PACKAGE	BODY SIZE (NOM)
LM2731	SOT-23 (5)	1.60 mm × 2.90 mm

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