一.目录 1.产品概述 2.产品特点 3.应用范围 4.技术规格书下载（PDF文档） The CXSD6186 is a step-down current-mode, DC-DC converter. At heavy load, the constant-frequency PWM control performs excellent stability and transient response. To ensure the longest battery life in portable applications, the CXSD6186 provides a power-saving pulse -Skipping Modulation (PSM) mode to reduce quiescent current under light load operation to save power. The CXSD6186 supports a range of input voltages from 2.5V to 5.5V, allowing the use of a single Li+/Li-polymer cell, multiple Alkaline/NiMH cell, USB, and other standard power sources. The output voltage is adjustable from 0.6V to the input voltage, while the part number suffix CXSD6186 indicates pre-set output voltage of 3.3V, 2.8V, 2.5V, 1.8V, 1.5V, 1.2V or adjustable. All versions employ internal power switch and synchronous rectifier for to minimize external part count and realize high efficiency. During shutdown, the input is disconnected from the output and the shutdown current is less than 0.1μA. Other key features include under-voltage lockout to prevent deep battery discharge. ● Efficiency up to 96% ● Only 40μA (TYP.) Quiescent Current ● Output Current: Up to 1A ● Internal Synchronous Rectifier ● 1.5MHz Switching Frequency ● Soft Start ● Under-Voltage Lockout ● Short Circuit Protection ● Thermal Shutdown ● Cellular Phone ● Portable Electronics ● Wireless Devices ● Cordless Phone ● Computer Peripherals ● Battery Powered Widgets ● Electronic Scales ● Digital Frame 需要详细的PDF规格书请扫一扫微信联系我们，还可以获得免费样品以及技术支持！ 八.相关芯片选择指南 更多同类产品....... Step-Down DC/DC Converter（降压DC/DC转换器） Part Number MODE VIN IOUT Accu IQ FOSC Eff. PFM/PWM 0.9-6.5V 500mA ±2% 60uA 1.2M 93% PWM Synchronous 2.5-5.5V 1A ±2% 40uA 1.5M 96% PWM Synchronous 2.5-5.0V 2A ±2% 40uA 1.5M 96% PWM 4.75-40V 1A ±1.5% 1.3mA 550K Hz 90% PWM Synchronous 4.5-18V 5A ±1.5% 1.6mA 500K Hz 95% PWM Buck 4.75-40V 3A ±2.5% 0.4 mA 160K Hz 95% PWM Buck 4.75-40V 3A ±2.5% 0.4 mA 160K Hz 95% Applications：①Mobile phone②Bluetooth equipment③PDA④Portable communication equipment⑤Camera Video, camera⑥Cordless phone⑦PC⑧Simple high-efficiency step-down (buck) regulator⑨On-card switching regulators⑩Positive to negative converter ⑪Industrial distributed power applications⑫Battery powered equipment
