NCP5212A/NCP5212T 是一款同步降壓
控制器,適用于高性能電池供電系統(tǒng)。NCP5212A/NCP5212T 包含一個高效 PWM 控制器。提供一個引腳,允許兩個設(shè)備交錯運行。內(nèi)部電源良好電壓監(jiān)視器跟蹤 SMPS 輸出。NCP5212A/NCP5212T 還具有軟啟動序列、Vcc 和開關(guān)的 UVLO、過壓保護、
過流保護、
欠壓保護和熱關(guān)斷功能。該 IC 采用 QFN16 封裝。特性與應(yīng)用 特性 0.8% 精度 0.8 V 基準(zhǔn) 4.5 V 至 27 V 電池 /
適配器電壓范圍 可調(diào)輸出電壓范圍:0.8 V 至 3.3 V 同步 兩個 NCP5212A/NCP5212T 之間交錯 輕負(fù)載時省電操作的跳躍模式 無損電感電流感應(yīng) 可編程瞬態(tài)響應(yīng)增強 (TRE) 控制 可編程自適應(yīng)電壓定位 (AVP) 輸入電源前饋控制 內(nèi)部軟啟動 集成輸出放電 (軟停止) 內(nèi)置自適應(yīng)
柵極驅(qū)動器 PGOOD 指示 過壓、欠壓和過流保護 熱關(guān)斷 這些設(shè)備不含鉛,符合 RoHS 標(biāo)準(zhǔn) 應(yīng)用 筆記本電腦 平板電腦 系統(tǒng)電源
The NCP5212A/NCP5212T is a synchronous step-down controller for high performance systems battery-power systems. The NCP5212A/NCP5212T includes a high efficiency PWM controller. A pin is provided to allow two devices in interleaved operation. An internal power good voltage monitor tracks the SMPS output. NCP5212A/NCP5212T also features soft-start sequence, UVLO for Vcc and switcher, over-voltage protection, over-current protection, under-voltage protection and thermal shutdown. The IC is packaged in QFN16. |
Features and Applications
Features
- 0.8% accuracy 0.8 V Reference
- 4.5 V to 27 V Battery/Adapter Voltage Range
- Adjustable Output Voltage Range: 0.8 V to 3.3 V
- Synchronization Interleaving between Two NCP5212A/NCP5212Ts
- Skip Mode for Power Saving Operation at Light Load
- Lossless Inductor Current Sensing
- Programmable Transient-Response-Enhancement (TRE) Control
- Programmable Adaptive Voltage Positioning (AVP)
- Input Supply Feedforward Control
- Internal Soft-Start
- Integrated Output Discharge (Soft-Stop)
- Build-in Adaptive Gate Drivers
- PGOOD Indication
- Over-voltage, Under-voltage and Over-current Protections
- Thermal Shutdown
- These Devices are Pb-Free and are RoHS Compliant
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Applications
- Notebook Computers
- Tablet Computers
- System Power
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