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AC/DC 和 DC/DC 转换器（集成 FET）

LM2611

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1.4MHz Cuk 转换器

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数据表

LM2611

正在供货
数据表 立即订购

产品详情

Rating Catalog Topology CuK, Inverting Switch current limit (typ) (A) 1.2 Vin (max) (V) 14 Vin (min) (V) 2.7 Vout (max) (V) -1.23 Vout (min) (V) -32 Features Light-load efficiency Switching frequency (min) (kHz) 1400 Switching frequency (max) (kHz) 1400 Operating temperature range (°C) -40 to 125 Iq (typ) (µA) 1800 Type Converter
Rating Catalog Topology CuK, Inverting Switch current limit (typ) (A) 1.2 Vin (max) (V) 14 Vin (min) (V) 2.7 Vout (max) (V) -1.23 Vout (min) (V) -32 Features Light-load efficiency Switching frequency (min) (kHz) 1400 Switching frequency (max) (kHz) 1400 Operating temperature range (°C) -40 to 125 Iq (typ) (µA) 1800 Type Converter
SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8
  • 1.4-MHz Switching Frequency
  • Low RDS(ON) DMOS FET
  • 1-mVp-p Output Ripple
  • –5 V at 300 mA From 5-V Input
  • Better Regulation Than a Charge Pump
  • Uses Tiny Capacitors and Inductors
  • Wide Input Range: 2.7 V to 14 V
  • Low Shutdown Current: <1 µA
  • 5-Pin SOT-23 Package
  • 1.4-MHz Switching Frequency
  • Low RDS(ON) DMOS FET
  • 1-mVp-p Output Ripple
  • –5 V at 300 mA From 5-V Input
  • Better Regulation Than a Charge Pump
  • Uses Tiny Capacitors and Inductors
  • Wide Input Range: 2.7 V to 14 V
  • Low Shutdown Current: <1 µA
  • 5-Pin SOT-23 Package

The LM2611 is a current mode, PWM inverting switching regulator. Operating from a 2.7-V to 4-V supply, it is capable of producing a regulated negative output voltage of up to &ndash(36 VIN(MAX)). The LM2611 utilizes an input and output inductor, which enables low voltage ripple and RMS current on both the input and the output. With a switching frequency of 1.4 MHz, the inductors and output capacitor can be physically small and low cost. High efficiency is achieved through the use of a low RDS(ON) FET.

The LM2611 features a shutdown pin, which can be activated when the part is not needed to lower the Iq and save battery life. A negative feedback (NFB) pin provides a simple method of setting the output voltage, using just two resistors. Cycle-by-cycle current limiting and internal compensation further simplify the use of the LM2611.

The LM2611 is available as a small 5-pin, SOT-23 package and comes in two grades. Grade A has a 1.2-A current limit and 0.5-Ω RDS(ON), and Grade B has a 0.9-A current limit and 0.7-Ω RDS(ON).

The LM2611 is a current mode, PWM inverting switching regulator. Operating from a 2.7-V to 4-V supply, it is capable of producing a regulated negative output voltage of up to &ndash(36 VIN(MAX)). The LM2611 utilizes an input and output inductor, which enables low voltage ripple and RMS current on both the input and the output. With a switching frequency of 1.4 MHz, the inductors and output capacitor can be physically small and low cost. High efficiency is achieved through the use of a low RDS(ON) FET.

The LM2611 features a shutdown pin, which can be activated when the part is not needed to lower the Iq and save battery life. A negative feedback (NFB) pin provides a simple method of setting the output voltage, using just two resistors. Cycle-by-cycle current limiting and internal compensation further simplify the use of the LM2611.

The LM2611 is available as a small 5-pin, SOT-23 package and comes in two grades. Grade A has a 1.2-A current limit and 0.5-Ω RDS(ON), and Grade B has a 0.9-A current limit and 0.7-Ω RDS(ON).
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类型 标题 下载最新的英语版本 日期
* 数据表 LM2611 1.4-MHz Cuk Converter 数据表 (Rev. J) PDF | HTML 2015年 12月 31日
应用手册 Generate Negative Power Supply from Positive Power Supply PDF | HTML 2025年 7月 29日
用户指南 AN-1203 LM2611 Demoboard (Rev. B) 2013年 4月 24日

设计和开发

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评估板

LM2611EVAL — 1.4MHz Cuk 转换器

1.4MHz Cuk Converter

用户指南: PDF
TI.com 上无现货
封装 引脚 CAD 符号、封装和 3D 模型
SOT-23 (DBV) 5 Ultra Librarian
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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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