同步降压控制器,带自动节电模式和内置 LDO
NCP81148 是一款双同步降压控制器,适用于将电池电压或适配器电压转换为台式机和笔记本系统所需的多个电源轨。NCP81148 包括两个降压开关控制器(在沟道 2 上为固定 5.0 V 输出,在沟道 1 上为 3.3 V)以及两个板上 LDO,带三个输出: 5 V / 60 mA 和 3.3 V 或 12 V / 10 mA。NCP81148 支持高能效、快速瞬变响应,提供电源正常信号。安森美半导体的专属自适应波纹控制可实现从 CCM 到 DCM 的无缝转换,转换器在轻型负载下将以更低开关频率运行,但能效要高很多。该零件的运行电源电压范围为 5.5 V 至 28 V。
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MSL Type
MSL Temp (°C)
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Container Qty.
ON Target
Topology
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Control Mode
VCC Min (V)
VCC Max (V)
fSW Typ (kHz)
参考价格
已停产
Pb
A
H
P
QFN-28
1
260
REEL
4000
No
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1
Voltage Mode
5.5
28
300, 400, 600
Price N/A
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可靠性数据
Die Related Summary Data
Device: NCP81148MNTWG
Equivalent to wafer fab process: ONC25
产品技术
产品技术
等效器件小时
平均故障间隔时间/平均无故障时间(按小时计算)
FITS
ONC25
2
7241242698
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Re-calculate Data
Data is based on the following assumptions.
Note: The temperature and confidence level may be adjusted to your requirements.
Disclaimer: A reliability FIT rate calculated using this tool shall not be used for any functional safety purpose. In case a raw FIT rate needs to be estimated for a component which is targeted to be used in a safety critical application (i.e. compliant to ISO 26262 standard) it should be calculated according to generic safety standards (IEC62380, IEC61709, SN29500, FIDES, etc.)