开关控制器 Wide Input Range Syn Buck Controller
The LM25141 is a synchronous buck controller, intended for high voltage wide VIN step-down converter applications. The control method is peak current mode control. Current mode control provides inherent line feed-forward, cycle-by-cycle current limiting, and ease of loop compensation. The LM25141 features slew rate control to simplify the compliance with EMI requirements.
The LM25141 has two selectable switching frequencies: 2.2 MHz and 440 kHz. Gate Drivers with Slew Rate Control that can be adjusted to reduce EMI.
In light or no-load conditions, the LM25141 operates in skip cycle mode for improved low power efficiency. The LM25141 has a high voltage bias regulator with automatic switch-over to an external bias to reduce the IQ current from VIN. Additional features include frequency synchronization, cycle-by-cycle current limit, hiccup mode fault protection for sustained overload, and power good output.
型号 | 品牌 | 下载 |
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LM25141RGET | TI 德州仪器 | 下载 |
LM2596SX-12 | National Semiconductor 美国国家半导体 | 下载 |
LM2596R-ADJ | HTC | 下载 |
LM2574HVMX-3.3 | National Semiconductor 美国国家半导体 | 下载 |
LM2574N-5.0 | National Semiconductor 美国国家半导体 | 下载 |
LM2594M-5.0 | National Semiconductor 美国国家半导体 | 下载 |
LM2575HVT-5.0 | National Semiconductor 美国国家半导体 | 下载 |
LM2576HVSX-12 | National Semiconductor 美国国家半导体 | 下载 |
LM2594MX-ADJ | National Semiconductor 美国国家半导体 | 下载 |
LM2596T-12 | National Semiconductor 美国国家半导体 | 下载 |
LM2575SX-3.3 | National Semiconductor 美国国家半导体 | 下载 |