LM3224

正在供貨

615kHz/1.25MHz 升壓 PWM 直流/直流轉換器

產品詳情

Rating Catalog Topology Boost Switch current limit (typ) (A) 2.6 Vin (max) (V) 7 Vin (min) (V) 2.7 Vout (max) (V) 20 Vout (min) (V) 1.26 Features Enable, Nonsynchronous rectification Switching frequency (min) (kHz) 615 Switching frequency (max) (kHz) 1250 Operating temperature range (°C) -40 to 125 Iq (typ) (μA) 1300 Duty cycle (max) (%) 92.5 Type Converter
Rating Catalog Topology Boost Switch current limit (typ) (A) 2.6 Vin (max) (V) 7 Vin (min) (V) 2.7 Vout (max) (V) 20 Vout (min) (V) 1.26 Features Enable, Nonsynchronous rectification Switching frequency (min) (kHz) 615 Switching frequency (max) (kHz) 1250 Operating temperature range (°C) -40 to 125 Iq (typ) (μA) 1300 Duty cycle (max) (%) 92.5 Type Converter
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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類型 標題 下載最新的英語版本 日期
* 數據表 LM3224 615kHz/1.25MHz Step-up PWM DC/DC Converter 數據表 (Rev. C) 2013年 3月 7日
選擇指南 電源管理指南 2018 (Rev. K) 2018年 7月 31日
選擇指南 電源管理指南 2018 (Rev. R) 2018年 6月 25日
EVM 用戶指南 AN-1394 LM3224 Evaluation Board (Rev. A) 2013年 4月 26日
應用手冊 Application Note 1394 LM3224 Evaluation Board (cn) 最新英語版本 (Rev.A) 2006年 1月 23日

設計和開發

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封裝 引腳 CAD 符號、封裝和 3D 模型
VSSOP (DGK) 8 Ultra Librarian

訂購和質量

包含信息：
  • RoHS
  • REACH
  • 器件標識
  • 引腳鍍層/焊球材料
  • MSL 等級/回流焊峰值溫度
  • MTBF/時基故障估算
  • 材料成分
  • 鑒定摘要
  • 持續可靠性監測
包含信息：
  • 制造廠地點
  • 封裝廠地點

支持和培訓

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