LM5143中文资料3.5V 至 65V 低 Iq、双路输出、可堆叠同步降压直流/直流控制器数据手册TI规格书

特性 Features

• Functional Safety-Capable
• Versatile synchronous buck DC/DC controller
• 1% accurate, fixed 3.3-V, 5-V, or adjustable outputs from 0.6 V to 55 V
• 4-µA typical shutdown mode current
• Two interleaved synchronous buck channels
• 65-ns tON(min) for high VIN/VOUT ratio
• Inherent protection features for robust design
• Hiccup mode overcurrent protection
• Adjustable output voltage soft start
• Thermal shutdown protection with hysteresis
• Optimized for CISPR 11 and CISPR 32 class B conducted and radiatedEMI requirements
• Spread spectrum reduces peak emissions
• 100-kHz to 2.2-MHz switching frequency
• Selectable diode emulation or FPWM modes
• 6-mm × 6-mm VQFN-40 package
• Create a custom design using the LM5143 with WEBENCH Power Designer