器件名称:
SI-8120JD
功能描述:
Step-Down to 12.0 V, 1.5 A, DC/DC Converter
文件大小:
574.85KB 共10页
简 介:
g n i s r h c o it lat w S egu R SI-8120JD Step-Down to 12.0 V, 1.5 A, DC/DC Converter Designed to meet high-current requirements at high efficiency in industrial and consumer applications; embedded core, memory, or logic supplies; TVs, VCRs, and office or telecommunications equipment, the SI-8120JD dc/dc step-down (buck) converter offers a constant 125 kHz switching frequency essential for low EMI noise. The npn switch is included on the die along with the oscillator, control, and logic circuitry requiring only four external components for a regulated 12 V output at up to 1.5 A. . A wide input voltage range and integrated thermal and overcurrent protection enhance overall system reliability. Reference accuracy and excellent temperature characteristics are provided. An output-enable input gives the designer complete control over power up, standby, or power down. This device is supplied in a 5-lead surface-mount plastic package (TO-263) with ground tab to provide a low-resistance path for maximum heat dissipation. A similar device in a flange-mounted (TO-220-style) high-power package is the SI-8120JF. FEATURES ■ 11 V to 40 V Input Range ■ 1.5 A Output Current at 12 V ■ 2% Output Voltage Tolerance ■ Foldback Current Limiting ■ Constant 125 kHz Switching Frequency ■ 200 A Maximum Standby Current ■ Soft Start Prevents Supply Voltage Dip ■ Remote Voltage Sensing ■ Exposed Pad for Superior Heat Dissipation ■ Thermal Protection APPLICATIONS ■ TVs, VCRs, Electronic Games ■ Embedded……
