STEVAL-ISA046V1 2 A / 1.2 V high-efficiency synchronous buck converter evaluation board based on the ST1S09I with inhibit

This evaluation board, based on the ST1S09I family of synchronous step-down DC-DC converters, is optimized for powering all lowvoltage applications and, generally, replaces high current linear solutions when power dissipation may cause high heating of the application environment. It provides up to 2 A over an input voltage range of 2.7 V to 5.5 V.

A high 1.5 MHz switching frequency allows the use of tiny surface-mount components and in addition to the resistor divider to set the output voltage value, an inductor and two capacitors are required.

The ST1S09I features an inhibit function.

A low output ripple is guaranteed by the current mode PWM topology and by the use of low ESR surface-mount ceramic capacitors.

The device is thermally protected and current limited to prevent damage due to accidental shortcircuit.

The ST1S09 family is available in the DFN6 3x3 package.

技术特性
  • Input voltage range: 2.7 V to 5.5 V
  • Output voltage: 1.2 V
  • Max Iout: 2 A
  • High internal switching frequency: 1.5 MHz
  • Inhibit function
  • Short-circuit protection
  • ST1S09I in the DFN6 3x3 package
功能框图
STEVAL-ISA046V1 订购信息
订购型号 产品状态 美金价格 数量 封装 包装形式 温度范围 材料声明
STEVAL-ISA046V1 Active   1000        
DATA BRIEF
描述 版本 大小
STEVAL-ISA046V1 : 2 A / 1.2 V high-efficiency synchronous buck converter evaluation board based on the ST1S09 with inhibit 1 83KB
APPLICATION NOTES
描述 版本 大小
AN2371: ST1S06 high frequency synchronous buck converter 2 173KB
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BILL OF MATERIALS
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Bill of materials 1.0 47KB
SCHEMATIC PACKS
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Board schematic 1.0 35KB
PCB LAYOUTS
描述 版本 大小
PCB layout 1.0 35KB