16V輸入電壓,降壓DC/DC控制器
XC9221系列是多用途,降壓DC/DC控制器IC。給該芯片外圍配置一個開關管,一個電感,一個二級管和兩個電容就可獲得一個高效,穩定的,輸出電流高達3A的電源。可使用低ESR電容比如陶瓷電容作為它的輸出電容。
XC9221系列有一個0.9V (±1.5%)參考電壓,使用外接分壓電阻就可以自由設定輸出電壓。開關頻率為300kHz,500kHz和1MHz,
可使用小型外圍器件。關於軟啟動時間,XC9221A和C系列都是內部設定為4毫秒,XC9221B和D系列可在外部設定。具有內置的UVLO (欠壓鎖閉)功能,當輸入電壓低至2.3V 或更低的時候,外部的P溝道開關管會被強制關斷。
特點
工作電壓範圍 | 2.8V~16.0V |
輸出電壓外部設定 | 0.9V(精度±1.5V) |
工作頻率 | 300k,500k,1.0MHz |
控制方式 | PWM/PFM自動切換控制 |
帶軟啟動功能 | 內部設定4ms(Type A 500kHz),外部設定(Type B) |
保護電路 | 積分保護1.0ms(A,B類型),短路保護 |
低ESR電容 | 陶瓷電容 |
典型應用電路
技術文件
封裝
XC9221系列型號
型號 | 樣品 | Type | Output Voltage | Oscillation Frequency | Packages | EDA | 在線商店 |
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XC9221A093ER-G |
Soft-start internally set with integral protection function | FB type | 300kHz | USP-6C | |||
XC9221A093MR-G |
Soft-start internally set with integral protection function | FB type | 300kHz | SOT-25 | |||
XC9221A095ER-G |
Soft-start internally set with integral protection function | FB type | 500kHz | USP-6C | |||
XC9221A095MR-G |
Soft-start internally set with integral protection function | FB type | 500kHz | SOT-25 | |||
XC9221A09AER-G |
Soft-start internally set with integral protection function | FB type | 1.0MHz | USP-6C | |||
XC9221A09AMR-G |
Soft-start internally set with integral protection function | FB type | 1.0MHz | SOT-25 | |||
XC9221B093ER-G |
Soft-start externally set with integral protection function | FB type | 300kHz | USP-6C | |||
XC9221B093MR-G |
Soft-start externally set with integral protection function | FB type | 300kHz | SOT-25 | |||
XC9221B095ER-G |
Soft-start externally set with integral protection function | FB type | 500kHz | USP-6C | |||
XC9221B095MR-G |
Soft-start externally set with integral protection function | FB type | 500kHz | SOT-25 | |||
XC9221B09AER-G |
Soft-start externally set with integral protection function | FB type | 1.0MHz | USP-6C | |||
XC9221B09AMR-G |
Soft-start externally set with integral protection function | FB type | 1.0MHz | SOT-25 | |||
XC9221C093ER-G |
Soft-start internally set without integral protection function | FB type | 300kHz | USP-6C | |||
XC9221C093MR-G |
Soft-start internally set without integral protection function | FB type | 300kHz | SOT-25 | |||
XC9221C095ER-G |
Soft-start internally set without integral protection function | FB type | 500kHz | USP-6C | |||
XC9221C095MR-G |
Soft-start internally set without integral protection function | FB type | 500kHz | SOT-25 | |||
XC9221C09AER-G |
Soft-start internally set without integral protection function | FB type | 1.0MHz | USP-6C | |||
XC9221C09AMR-G |
Soft-start internally set without integral protection function | FB type | 1.0MHz | SOT-25 | |||
XC9221D093ER-G |
Soft-start externally set without integral protection function | FB type | 300kHz | USP-6C | |||
XC9221D093MR-G |
Soft-start externally set without integral protection function | FB type | 300kHz | SOT-25 | |||
XC9221D095ER-G |
Soft-start externally set without integral protection function | FB type | 500kHz | USP-6C | |||
XC9221D095MR-G |
Soft-start externally set without integral protection function | FB type | 500kHz | SOT-25 | |||
XC9221D09AER-G |
Soft-start externally set without integral protection function | FB type | 1.0MHz | USP-6C | |||
XC9221D09AMR-G |
Soft-start externally set without integral protection function | FB type | 1.0MHz | SOT-25 |
XC9221 系列相關諮詢
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