LM3224

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615kHz/1.25MHz 升压 PWM DC/DC 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) 7 Switching frequency (min) (kHz) 615 Switching frequency (max) (kHz) 1250 Features Enable, Nonsynchronous rectification Vout (min) (V) 1.26 Vout (max) (V) 20 Iq (typ) (µA) 1300 Duty cycle (max) (%) 92.5
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Boost Type Converter Vin (min) (V) 2.7 Vin (max) (V) 7 Switching frequency (min) (kHz) 615 Switching frequency (max) (kHz) 1250 Features Enable, Nonsynchronous rectification Vout (min) (V) 1.26 Vout (max) (V) 20 Iq (typ) (µA) 1300 Duty cycle (max) (%) 92.5
VSSOP (DGK) 8 14.7 mm² 3 x 4.9
  • Operating Voltage Range of 2.7V to 7V
  • 615kHz/1.25MHz Pin Selectable Frequency Operation
  • Over Temperature Protection
  • Optional Soft-Start Function
  • 8-Lead VSSOP Package

All trademarks are the property of their respective owners.

  • Operating Voltage Range of 2.7V to 7V
  • 615kHz/1.25MHz Pin Selectable Frequency Operation
  • Over Temperature Protection
  • Optional Soft-Start Function
  • 8-Lead VSSOP Package

All trademarks are the property of their respective owners.

The LM3224 is a step-up DC/DC converter with a 0.15Ω (typ.), 2.45A (typ.) internal switch and pin selectable operating frequency. With the ability to convert 3.3V to multiple outputs of 8V, -8V, and 23V, the LM3224 is an ideal part for biasing TFT displays. With the high current switch it is also ideal for driving high current white LEDs for flash applications. The LM3224 can be operated at switching frequencies of 615kHz and 1.25MHz allowing for easy filtering and low noise. An external compensation pin gives the user flexibility in setting frequency compensation, which makes possible the use of small, low ESR ceramic capacitors at the output. An external soft-start pin allows the user to control the amount of inrush current during start up. The LM3224 is available in a low profile 8-lead VSSOP package.

The LM3224 is a step-up DC/DC converter with a 0.15Ω (typ.), 2.45A (typ.) internal switch and pin selectable operating frequency. With the ability to convert 3.3V to multiple outputs of 8V, -8V, and 23V, the LM3224 is an ideal part for biasing TFT displays. With the high current switch it is also ideal for driving high current white LEDs for flash applications. The LM3224 can be operated at switching frequencies of 615kHz and 1.25MHz allowing for easy filtering and low noise. An external compensation pin gives the user flexibility in setting frequency compensation, which makes possible the use of small, low ESR ceramic capacitors at the output. An external soft-start pin allows the user to control the amount of inrush current during start up. The LM3224 is available in a low profile 8-lead VSSOP package.

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类型 标题 下载最新的英语版本 日期
* 数据表 LM3224 615kHz/1.25MHz Step-up PWM DC/DC Converter 数据表 (Rev. C) 2013年 3月 7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-1394 LM3224 Evaluation Board (Rev. A) 2013年 4月 26日
应用手册 Application Note 1394 LM3224 Evaluation Board (cn) 最新英语版本 (Rev.A) 2006年 1月 23日

设计和开发

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封装 引脚 CAD 符号、封装和 3D 模型
VSSOP (DGK) 8 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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