品牌索引
产品分类 > 小信号开关二极管> 瞬态电压抑制器TVS/ESD> 双极管二极管> 调谐二极管> 齐纳(稳压)二极管> 小信号肖特基二极管> 频带转换二极管> 中/高功率管> 射频PIN二极管> Sinterglass二极管> 整流器 > N沟道(N-Channel)> P沟道(P-Channel)> 双N沟道(Dual N-Channel)> 双P沟道(Dual P-Channel)> 双N和P沟道(Dual N and P-Channel)
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产品介绍 LM5642/LM5642XFeatures
■ Two synchronous buck regulators ■ 180° out of phase operation ■ 200 kHz fixed nominal frequency: LM5642 ■ 375 kHz fixed nominal frequency: LM5642X ■ Synchronizable switching frequency from 150 kHz to 250 kHz for the LM5642 and 200 kHz to 500 kHz for the LM5642X ■ 4.5V to 36V input range ■ 50 μA Shutdown current ■ Adjustable output from 1.3V to 90% of Vin ■ 0.04% (typical) line and load regulation accuracy ■ Current mode control with or without a sense resistor ■ Independent enable/soft-start pins allow simple sequential startup configuration. ■ Configurable for single output parallel operation. (See Figure 2) ■ Adjustable cycle-by-cycle current limit ■ Input under-voltage lockout ■ Output over-voltage latch protection ■ Output under-voltage protection with delay ■ Thermal shutdown ■ Self discharge of output capacitors when the regulator is OFF ■ TSSOP and eTSSOP (Exposed PAD) packages |
