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LM34923

80V、600mA 恒定導通時間降壓開關(guān)穩(wěn)壓器; ? Operating Input Voltage Range: 6V to 75V\n? Integrated 80V, N-Channel Buck Switch\n? Internal Start-up Regulator\n? No Loop Compensation Required\n? Ultra-Fast Transient Response\n? Operating Frequency Remains Constant with Line and Load Variations\n? Adjustable Output voltage From 2.5V\n? Precision Internal Reference, ±2.5%\n? Intelligent Current Limit Reduces Foldback\n? Programmable Input UV Detector with Status Flag Output\n? Pre-charge Switch Enables Bootstrap Gate Drive with No Load\n? Thermal Shutdown\n? 10-Pin VSSOP Package;

The LM34923 Step Down Switching Regulator features all of the functions needed to implement a low cost, efficient Buck bias regulator. This high voltage regulator contains an 80V N-Channel MOSFET Switch and a startup regulator. The device is easy to implement and is provided in an 10-pin VSSOP package. The regulator’s control scheme uses an on-time inversely proportional to VIN. This feature results in the operating frequency remaining relatively constant with line and load variations. The control scheme requires no loop compensation, resulting in fast transient response. An intelligent current limit is implemented with a forced off-time which is inversely proportional to VOUT. This scheme ensures short circuit control while providing minimum foldback. Other features include: Thermal Shutdown, VCC Under Voltage Lock-out, Max Duty Cycle Limiter, a Pre-charge Switch, and a programmable Under Voltage Detector with a status flag output.

LM34925

適用于隔離式直流/直流轉(zhuǎn)換器的 7.5V 至 100V 寬輸入電壓、100mA 集成二次側(cè)偏置穩(wěn)壓器; ? 寬輸入電壓范圍：7.5V 至 100V \n? 集成了 100mA 高側(cè)和低側(cè)開關(guān) \n? 無需肖特基二極管\n? 恒定導通時間控制\n? 無需環(huán)路補償\n? 超快瞬態(tài)響應\n? 接近恒定的運行頻率\n? 智能峰值電流限制\n? 可調(diào)節(jié)輸出電壓（以 1.225V 為基準電壓）\n? 2% 的反饋基準電壓精度\n? 頻率可調(diào)至 1MHz\n? 可調(diào)低壓閉鎖 (UVLO)\n? 遠程關(guān)斷\n? 熱關(guān)斷\n? 封裝： \n? 8 引腳晶圓級小外形無引線 (WSON)\n? 8 引腳小外形尺寸 (SO) PowerPAD?;

LM34925 穩(wěn)壓器具有 實現(xiàn)低成本高效率的隔離式偏置穩(wěn)壓器所需的全部功能。此高壓穩(wěn)壓器包含兩個 100V N 通道 MOSFET 開關(guān)：一個高側(cè)降壓開關(guān)和一個低側(cè)同步開關(guān)。LM34625 所采用的恒定導通時間 (COT) 控制方案無需環(huán)路補償，可提供出色的瞬態(tài)響應。此穩(wěn)壓器的運行接通時間與輸入電壓成反比。此特性使得工作頻率能夠保持相對恒定。使用集成感測電路來執(zhí)行智能峰值電流限制。其他 特性 包括一個用于抑制低壓條件下運行的可編程輸入欠壓比較器。保護 特性 包括熱關(guān)斷和 VCC 欠壓鎖定 (UVLO)。LM34925 器件采用 8 引腳 WSON 和8 引腳 SO PowerPAD 塑料封裝。

LM3492_15

Two-Channel Individual Dimmable LED Driver with Boost Converter and Fast Current Regulator

LM34922

28V, 2A Constant On-Time Switching Regulator with Adjustable Current Limit

LM34922

28V, 2A Constant On-Time Switching Regulator with Adjustable Current Limit

LM34922_15

28V, 2A Constant On-Time Switching Regulator with Adjustable Current Limit

LM34922MY

28V, 2A Constant On-Time Switching Regulator with Adjustable Current Limit

LM34922MY/NOPB

28V, 2A Constant On-Time Switching Regulator with Adjustable Current Limit

LM34922MYSLASHNOPB

28V, 2A Constant On-Time Switching Regulator with Adjustable Current Limit

LM34922MYX

28V, 2A Constant On-Time Switching Regulator with Adjustable Current Limit