LM2731

正在供货

采用 SOT-23 封装、具有 22V 内部 FET 开关的 0.6/1.6MHz 升压转换器

产品详情

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Boost Type Converter Vin (min) (V) 2.7 Vin (max) (V) 14 Switching frequency (min) (kHz) 600 Switching frequency (max) (kHz) 1600 Features Enable, Nonsynchronous rectification Vout (min) (V) 1.23 Vout (max) (V) 22 Iq (typ) (µA) 2000 Duty cycle (max) (%) 93 Switch current limit (typ) (A) 1.5
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Boost Type Converter Vin (min) (V) 2.7 Vin (max) (V) 14 Switching frequency (min) (kHz) 600 Switching frequency (max) (kHz) 1600 Features Enable, Nonsynchronous rectification Vout (min) (V) 1.23 Vout (max) (V) 22 Iq (typ) (µA) 2000 Duty cycle (max) (%) 93 Switch current limit (typ) (A) 1.5
SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8
  • 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
  • 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

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.

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.

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技术文档

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类型 标题 下载最新的英语版本 日期
* 数据表 LM2731 0.6/1.6-MHz Boost Converters With 22-V Internal FET Switch in SOT-23 数据表 (Rev. G) PDF | HTML 2015年 9月 30日
选择指南 电源管理指南 2018 (Rev. K) 2018年 7月 31日
选择指南 电源管理指南 2018 (Rev. R) 2018年 6月 25日
EVM 用户指南 AN-1280 LM2731/LM2733 Evaluation Board (Rev. B) 2013年 4月 24日

设计和开发

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评估板

LM2731YEVAL — 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

LM2731Y 0.6 MHz Boost Converter With 22 V Internal FET Switch

用户指南: PDF
TI.com 上无现货
仿真模型

LM2731X 1.6MHz Unencrypted PSPICE Transient Model Package (Rev. A)

SNVM668A.ZIP (40 KB) - PSpice Model
仿真模型

LM2731X Unencrypted PSpice Transient Model

SNVM883.ZIP (2 KB) - PSpice Model
仿真模型

LM2731Y 0.6MHz Unencrypted PSPICE Transient Model Package (Rev. A)

SNVM669A.ZIP (42 KB) - PSpice Model
仿真模型

LM2731Y Unencrypted PSpice Transient Model

SNVM882.ZIP (2 KB) - PSpice Model
封装 引脚 CAD 符号、封装和 3D 模型
SOT-23 (DBV) 5 Ultra Librarian

订购和质量

包含信息:
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息:
  • 制造厂地点
  • 封装厂地点

支持和培训

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