MIC2131中文资料40V Synchronous Buck Controller with Low EMI Option数据手册Microchip规格书

描述 Description

The MIC2130/1 is a high voltage input PWM synchronous buck IC. It is a voltage mode controller with a fast hysteretic control loop (FHyCL) employed during fast line and load transients. The internal gate drivers are designed to drive high current MOSFETs. The MIC2130/1 can produce output voltages down to 0.7V with input voltage from 8V to 40V. The MIC2130 family of control ICs implements fixed frequency PWM control. The active anti-shoot through drive scheme means a wide range of external MOSFETs may be used while maintaining optimum efficiency. The MIC2130/1 is the fully functional version of the family and implements a new feature to minimize EMI. This function is critical for systems that need to be compliant with EMI standards throughout the world. The MIC2131 is available in 16-pin e-TSSOP at a junction temperature range of -40°C to +125°C.

特性 Features

• 8V to 40V input voltage range
• Adjustable output voltages down to 0.7V
• Low EMI option (MIC2131)
• Fixed 150kHz and 400kHz frequency options
• Excellent line and load regulation due to fast hysteretic control loop during transients
• Adaptive gate drive allows efficiencies over 95%
• Programmable current limit with no sense resistor
• Senses low-side MOSFET current
• Internal drivers allow 15A output current
• Power Good output allow simple sequencing
• Programmable soft-start pin
• 100% increase in current limit (MIC2131)
• Output over-voltage protection
• Programmable Input UVLO
• 16-pin e-TSSOP
• Junction temperature range of -40°C to +125°C

简介

MIC2131属于集成电路（IC）的PMIC-稳压器-DCDC开关式控制器。由制造生产的MIC2131DC-DC 开关控制器PMIC（电源管理集成电路）DC 到 DC 开关式控制器是用于高效率电路的稳压 IC，其配置为生成高于（突升或步升）或低于（突降或步降）输入电源的输出电源电压。其他拓扑结构可能包括：降压-升压、反激、正激、Cuk、SEPIC、全桥、半桥和推挽式。这些器件不同于需要最小电压并“烧尽”多余电压的线性稳压器。