感测低边MOSFET的RDS CXSD62174A自举正激P-CH MOSFET 125%过电压保护12A同步降压转换器

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1.产品概述       2.产品特点     1y1嘉泰姆

3.应用范围       4.技术规格书下载（PDF文档）1y1嘉泰姆

5.产品封装       6.电路原理图  1y1嘉泰姆

7.相关产品1y1嘉泰姆

   产品概述 返回TOP1y1嘉泰姆

The CXSD62174 CXSD62174A is a 12A, synchronous, step-down converter with integrated 9.7mW N-channel High-Side MOSFET and 5.2mW Low-Side MOSFET. The CXSD62174 CXSD62174A steps down high voltage to generate low-voltage chipset or RAM supplies in notebook computers. The CXSD62174 CXSD62174A provides excellent transient response and accurate DC voltage output in either PFM or PWM Mode. In Pulse Frequency Mode (PFM), the CXSD62174 CXSD62174Aprovides 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 CXSD62174 CXSD62174Ais equipped with accurate current-limit, output under-voltage, and output over-voltage protections, perfect for various applications. A Power-On-Reset function monitors the voltage on VCC to prevent wrong operation during power-on. The CXSD62174 CXSD62174Ahas external adjustable soft-start and built-in an integrated output discharge method for soft stop. A soft-start ramps up the output voltage with programmable timing to reduce the start-up current. A soft-stop function actively discharges the output capacitors. The CXSD62174 CXSD62174Ais available in TQFN5x5-30 (Power PAK).

   产品特点 返回TOP1y1嘉泰姆

· Adjustable Output Voltage from +0.8V to +12V - 0.8V Reference Voltage - +1% Accuracy over Temperature 1y1嘉泰姆

· Operates from An Input Battery Voltage Range of +2.7V to +28V 1y1嘉泰姆

· Power-On-Reset Monitoring on VCC pin 1y1嘉泰姆

· Excellent line and load transient responses 1y1嘉泰姆

· PFM mode for increased light load efficiency 1y1嘉泰姆

· Programmable PWM Frequency from 300kHz to 1000kHz 1y1嘉泰姆

· Integrated 9.7mW at VCC=5V N-Channel MOSFET For High Side 1y1嘉泰姆

· Integrated 5.2mW at VCC=5V N-Channel MOSFET For Low Side 1y1嘉泰姆

· Integrated Bootstrap Forward P-CH MOSFET 1y1嘉泰姆

· External Adjustable Soft-Start and Soft-Stop 1y1嘉泰姆

· Selectable Forced PWM or automatic PFM/PWM mode 1y1嘉泰姆

· Power Good Monitoring · 70% Under-Voltage Protection 1y1嘉泰姆

· 125% Over-Voltage Protection 1y1嘉泰姆

· Current-Limit Protection 1y1嘉泰姆

- Using Sense Low-Side MOSFET’s RDS(ON) 1y1嘉泰姆

· Over-Temperature Protection 1y1嘉泰姆

· TQFN-30 5mmx5mm package 1y1嘉泰姆

· Lead Free and Green Device Available (RoHS Compliant)1y1嘉泰姆

   应用范围 返回TOP1y1嘉泰姆

· Notebook 1y1嘉泰姆

· Mother Board 1y1嘉泰姆

· Table PC 1y1嘉泰姆

· Hand-Held Portable 1y1嘉泰姆

· AIO PC 1y1嘉泰姆

· Set-top boxes 1y1嘉泰姆

· LCD TV1y1嘉泰姆

   技术规格书（产品PDF) 返回TOP 1y1嘉泰姆

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电路原理图 返回TOP1y1嘉泰姆

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