8A同步降压转换器CXSD62175 PVCC和VCC管脚上电复位监测内置COT模式控制快速响应和MLCC支持 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
目录7.相关产品 产品概述 返回TOP The CXSD62175 is a 8A, synchronous, step-down converter with integrated 12mW N-channel High-Side MOSFET and 12mW Low-Side MOSFET. The CXSD62175 steps down high voltage to generate low-voltage chipset or RAM supplies in notebook computers. The CXSD62175 provides excellent transient response and accurate DC voltage output in either PFM or PWM Mode. In Pulse Frequency Mode (PFM), the CXSD62175 provides very high efficiency over light to heavy loads with loadingmodulated switching frequencies. In PWM Mode, the converter works nearly at constant frequency for low-noise requirements. The CXSD62175 is equipped with accurate current-limit, output under-voltage, and output over-voltage protections, perfect for NB applications. A Power-On-Reset function monitors the voltage on VPVCC and VCC to prevent wrong operation during power-on. The CXSD62175 has a 1.2ms digital soft-start and built-in an integrated output discharge device for soft-stop. An internal integrated soft-start ramps up the output voltage with programmable slew rate to reduce the start-up current. A soft-stop function actively discharges the output capacitors. The CXSD62175 is available in TQFN5x6-28 (Power PAK) package.产品特点 返回TOP · Operates from An Input Battery Voltage Range of +3V to +25V · ±1.6% 0.75V Reference - Over Line, Load Regulation, and Operating Temp. · High Efficiency all Over 90% at VOUT =1V, VIN =19V Condition · Power-On-Reset Monitoring on PVCC and VCC Pins · Excellent Line and Load Transient Responses · Integrated 12mW @ VCC=5V N-Channel MOSFET For High Side · Integrated 12mW @ VCC=5V N-Channel MOSFET For Low Side · Programmable PWM Frequency from 100kHz to 500kHz · Built-in 1.2ms Digital Soft-Start & Soft-Stop · Built-in COT Mode Control for Fast Response and MLCC Supports · Power Good Monitoring · 70% Under-Voltage Protection · 125% Over-Voltage Protection · Adjustable Current-Limit Protection - Using Built-in Low-Side MOSFET’s RDS(ON) · Over-Temperature Protection · TQFN5x6-28 (Power PAK) Package · Lead Free and Green Devices Available (RoHS Compliant) 应用范围 返回TOP · Notebook · Table PC · Hand-Held Portable · AIO PC 技术规格书(产品PDF) 返回TOP 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! 产品封装图 返回TOP 电路原理图 返回TOP
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