This evaluation board, based on the ST1S09 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.
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.
主要特性
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| 器件 | 類型 | 描述 | 數(shù)據(jù)手冊 |
|---|---|---|---|
| ST1S09 | 降壓穩(wěn)壓器 | 同步整流2 A、1.5 MHz可調(diào)步降開關(guān)穩(wěn)壓器，帶抑制功能 | 點(diǎn)擊下載 |
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