带Adj的高输入10A同步降压PWM转换器CXSD62172D LDO引脚上电复位监控负载瞬态响应轻载效率的PFM模式

目录

1.产品概述       2.产品特点     Wit嘉泰姆

3.应用范围       4.技术规格书下载（PDF文档）Wit嘉泰姆

5.产品封装       6.电路原理图  Wit嘉泰姆

7.相关产品Wit嘉泰姆

   产品概述 返回TOPWit嘉泰姆

The CXSD62172D CXSD62172DA CXSD62172E is a 10A, synchronous, step-down converter with integrated 27mW N-channel High-Side MOSFET and 7mW Low-Side MOSFET. The CXSD62172D CXSD62172DA CXSD62172E steps down high voltage to generate low-voltage chipset or RAM supplies in notebook computers. The CXSD62172D CXSD62172DA CXSD62172E provides excellent transient response and accurate DC voltage output in either PFM or PWM Mode. In Pulse Frequency Mode (PFM), the CXSD62172D CXSD62172DA CXSD62172Eprovides 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 CXSD62172D CXSD62172DA CXSD62172Eis 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 VLDO to prevent wrong operation during power-on. The CXSD62172D CXSD62172DA CXSD62172Ehas 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 CXSD62172D CXSD62172DA CXSD62172Eis available in TQFN4x4-23 (Power PAK).

   产品特点 返回TOPWit嘉泰姆

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

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

· 20mA Low Dropout Regulator (LDO) with Fixed 5. 3V Output Wit嘉泰姆

· Power-On-Reset Monitoring on LDO pin Wit嘉泰姆

· Excellent line and load transient responses Wit嘉泰姆

· PFM mode for increased light load efficiency Wit嘉泰姆

· Programmable PWM Frequency from 100kHz to 1000kHz Wit嘉泰姆

· Integrated 27mW at LDO=5V N-Channel MOSFET For High Side Wit嘉泰姆

· Integrated 7mW at LDO=5VN-Channel MOSFET For Low Side Wit嘉泰姆

· Integrated Bootstrap Forward P-CH MOSFET Wit嘉泰姆

· External Adjustable Soft-Start and Soft-Stop Wit嘉泰姆

· Selectable Forced PWM or automatic PFM/PWM mode Wit嘉泰姆

· Power Good Monitoring Wit嘉泰姆

· 70% Under-Voltage Protection Wit嘉泰姆

· 125% Over-Voltage Protection Wit嘉泰姆

· Current-Limit Protection Wit嘉泰姆

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

· Over-Temperature Protection Wit嘉泰姆

· TQFN-23 4mmx4mm package Wit嘉泰姆

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

   应用范围 返回TOPWit嘉泰姆

· Notebook Wit嘉泰姆

· Mother Board Wit嘉泰姆

· Table PC Wit嘉泰姆

· Hand-Held Portable Wit嘉泰姆

· AIO PC Wit嘉泰姆

· Set-top boxes Wit嘉泰姆

· LCD TVWit嘉泰姆

   技术规格书（产品PDF) 返回TOP Wit嘉泰姆

     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！Wit嘉泰姆

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产品封装图 返回TOPWit嘉泰姆

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电路原理图 返回TOPWit嘉泰姆

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