RT5715中文资料5.5V 输入、2A 输出的低耗电同步 Buck 转换器数据手册Richtek规格书

描述 Description

The RT5715 is a 2A, high-efficiency, Advanced Constant-On-Time (ACOT) synchronous step-down converter. The device operates with input voltages from 2.5V to 5.5V. The device can program the output voltage between 0.45V to VIN. The low quiescent current design with the integrated low R_DS(ON) power MOSFETs achieves high efficiency over the wide load range. The advanced COT operation allows transient responses to be optimized over a wide range of loads, and output capacitors to efficiently reduce external component count. The RT5715 provides up to 2.7MHz switching frequency to minimize the size of output inductor and capacitors.



The RT5715 provides complete protection functions such as input under voltage lockout, output under voltage protection, over current protection, and thermal shutdown.



Cycle-by-cycle current limit provides protection against shorted outputs and soft-start eliminates input current surge during start-up. The RT5715 is available in WDFN-8SL 2x2 package.

特性 Features

• 2A Converter Integrated 100mΩ and 80mΩ FETs in WDFN-8SL 2x2 Package
• Output Voltage Range : 0.45V to VIN
• High Accuracy Feedback Reference Voltage : 0.45V ± 1%
• Fixed Switching Frequency : 2.7MHz
• Safe Start-Up from Pre-biased Output
• Output Under-Voltage Protection (UVP) with Hiccup Mode
• Enable Control
• RoHS Compliant and Halogen Free

应用 Application

• Mobile Phones and Handheld Devices
• WLAN ASIC Power / Storage (SSD and HDD)
• General Purpose for POL LV Buck Converter