ADI ADP2387同步降压DC电源稳压器解决方案

ADI公司的ADP2387是集成了44 mΩ高边功率MOSFET和11 mΩ同步整流器MOSFET的同步降压DC电源稳压器,在4 mm×4 mm LFCSP封装中提供完整高效的解决方案,输入电压4.5V-20V,连续输出电流6A,基准电压0.6 V ± 1%,主要用在通信基础设备,网络和服务器,工业和仪表,医疗保健以及DC/DC点负载.本文介绍了ADP2387主要特性,功能框图和多种应用电路,以及ADP2387-EVALZ评估板优势和特点,电路图,材料清单和PCB设计图.
The ADP2387 is a synchronous step-down, dc-to-dc regulator with an integrated 44 mΩ, high-side power, metal oxide semiconductor field effect transistor (MOSFET) and an 11 mΩ, synchronous rectifier MOSFET to provide a high efficiency solution in a compact 4 mm × 4 mm LFCSP. This device uses a peak current mode, constant frequency pulse-width modulation (PWM) control scheme for excellent stability and transient response. The switching frequency of the ADP2387 can be programmed between 200 kHz to 1400 kHz. The ADP2387 requires minimal external components and operates from an input voltage of 4.5 V to 20 V. The output voltage can be adjusted from 0.6 V to 90% of the input voltage and delivers up to 6 A of continuous current. Each IC draws less than 110 μA current from the input source when it is disabled. This regulator targets high performance applications that require high efficiency and design flexibility. External compensation and an adjustable soft start function provide design flexibility. The power-good output and precision enable input provide simple and reliable power sequencing. The programmable current-limit function allows the inductor to be optimized by output current.
Other key features include undervoltage lockout (UVLO), overvoltage protection (OVP), overcurrent protection (OCP), short-circuit protection (SCP), and thermal shutdown (TSD). The ADP2387 operates over the −40℃ to +125℃ junction temperature range and is available in a 24-lead, 4 mm × 4 mm LFCSP.
ADP2387主要特性:

Input voltage range: 4.5 V to 20 V
Integrated MOSFET: 44 mΩ typical/11 mΩ ty...