CXSD62358

CXSD62358PWM控制器采用恒导通控制方案,可以方便地处理宽输入/输出电压比,在保持相对恒定的开关频率的同时,对负载瞬态提供100ns的“瞬时通”响应。CXSD62358通过消除传统电流模式PWMs中的电流感应电阻,以较低的成本实现了高效率。驱动超大同步整流mosfet的能力进一步提高了效率。单级降压转换允许这些设备直接降压高压电池,以获得尽可能高的效率

 4.5V至24V电池输入PWM控制器恒导通控制方案CXSD62358驱动同步整流器FET恒定的开关频率

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目录

1.产品概述       2.产品特点     XvW嘉泰姆

3.应用范围       4.技术规格书下载(PDF文档)XvW嘉泰姆

5.产品封装       6.电路原理图  XvW嘉泰姆

7.相关产品XvW嘉泰姆

   产品概述 返回TOPXvW嘉泰姆


    CXSD62358 PWM controller uses constant on-time control scheme to handle wide input/output voltage ratios with ease and provides 100ns “instant-on” response to load transients while maintaining a relatively constant switching frequency. The CXSD62358 achieves high efficiency at a reduced cost by eliminating the current-sense resistor found in traditional current-mode PWMs. Efficiency is further enhanced by an ability to drive very large synchronous rectifier MOSFETs. Single-stage buck conversion allows these devices to directly step down high-voltage batteries for the highest possible efficiency. Alternatively, two-stage conversion (stepping down the +5V system supply instead of the battery) at a higher switching frequency allows the minimum possible physical size. The CXSD62358 is intended for CPU core, chipset, DRAM, or other low-voltage supplies as low as 0.75V. CXSD62358 LDO controller can drive an external NMOSFET to provide a second output voltage from PWM output or other power source. It is adjusted output from 0.75V. The independent enable input, open-drain power good indicator, under-voltage protection and soft-start are provided for system application. The CXSD62358 is available in 16-pin TQFN (3X3) package

   产品特点 返回TOPXvW嘉泰姆


--PWM Controller XvW嘉泰姆

„ Ultra-High Efficiency XvW嘉泰姆

„ No Current-Sense Resistor (Lossless ILIMIT) XvW嘉泰姆

„ Quasi-PWM with 100ns Load-Step Response XvW嘉泰姆

„ 1% VOUT Accuracy Over Line and Load XvW嘉泰姆

„ 0.75V to 3.6V Adjustable Output Range XvW嘉泰姆

„ 4.5V to 24V Battery Input Range XvW嘉泰姆

„ OVP & UVP XvW嘉泰姆

„ 1.7ms Soft-Start XvW嘉泰姆

„ Drives Large Synchronous-Rectifier FETs XvW嘉泰姆

„ Power-Good Indicator XvW嘉泰姆

--LDO Controller XvW嘉泰姆

„ 1.5% Accuracy Over Line and Load XvW嘉泰姆

„ Adjustable Output down to 0.75V XvW嘉泰姆

„ Independent Enable and Power Good Indicator XvW嘉泰姆

„ Drives N-channel MOSFET within Rail to Rail Controller Voltage XvW嘉泰姆

„ MLCC and POSCAP StableXvW嘉泰姆

   应用范围 返回TOPXvW嘉泰姆


„ Notebook ComputersXvW嘉泰姆

„ CPU Core Supply XvW嘉泰姆

„ Chipset/RAM Supply as Low as 0.75V XvW嘉泰姆

„ 1.8V and 2.5V I/O Supply XvW嘉泰姆

„ Networking Power SupplyXvW嘉泰姆

   技术规格书(产品PDF) 返回TOP XvW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XvW嘉泰姆

 QQ截图20160419174301.jpgXvW嘉泰姆

产品封装图 返回TOPXvW嘉泰姆


image.pngXvW嘉泰姆

电路原理图 返回TOPXvW嘉泰姆

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 XvW嘉泰姆

Synchronous (Quasi-PWM) Step Down ControllerXvW嘉泰姆

Part   NO.XvW嘉泰姆

Vin(V)XvW嘉泰姆

min.XvW嘉泰姆

Vin(V)XvW嘉泰姆

max.XvW嘉泰姆

VOUTXvW嘉泰姆

(V)XvW嘉泰姆

FSWXvW嘉泰姆

(k Hz)XvW嘉泰姆

FBXvW嘉泰姆

(V)XvW嘉泰姆

NoteXvW嘉泰姆

PackageXvW嘉泰姆

CXSD62355XvW嘉泰姆

3XvW嘉泰姆

28XvW嘉泰姆

0.7~1.8XvW嘉泰姆

300/400XvW嘉泰姆

0.8XvW嘉泰姆

EN, SS, PGOOD,   OVP, UVP, OCP, VTTREF, Built-in BST diode, DDR1/2/3/3L, 2A LDO for VTTXvW嘉泰姆

TQFN3X3-20XvW嘉泰姆

CXSD62356XvW嘉泰姆

4.5XvW嘉泰姆

28XvW嘉泰姆

0.7~2.6XvW嘉泰姆

ADJXvW嘉泰姆

0.7XvW嘉泰姆

EN,   PGOOD, OVP, UVP, OCP, VOUT Adjustable,1.5ms VOUT Servo Soft Start, 4700ppm/°C   RON Coefficient XvW嘉泰姆

TDFN3X3-10XvW嘉泰姆

CXSD62357XvW嘉泰姆

4.5XvW嘉泰姆

28XvW嘉泰姆

0.5~3.3XvW嘉泰姆

ADJXvW嘉泰姆

0.5XvW嘉泰姆

EN,   PGOOD, OVP, UVP, OCP, VOUT Adjustable, 1.5ms VOUT Servo Soft Start,   4700ppm/°C RON CoefficientXvW嘉泰姆

TQFN2X2-12XvW嘉泰姆

CXSD62358XvW嘉泰姆

4.5XvW嘉泰姆

24XvW嘉泰姆

0.75~3.6XvW嘉泰姆

ADJXvW嘉泰姆

0.75XvW嘉泰姆

EN, SS, PGOOD,   OVP, UVP, OCP, Built-in BST diodeXvW嘉泰姆

TQFN3X3-16XvW嘉泰姆

CXSD62359XvW嘉泰姆

4.5XvW嘉泰姆

24XvW嘉泰姆

0.75~3.6XvW嘉泰姆

ADJXvW嘉泰姆

0.75XvW嘉泰姆

EN,   SS, PGOOD, OVP, UVP, OCP, Built-in BST diodeXvW嘉泰姆

TQFN3X3-16XvW嘉泰姆

CXSD62360XvW嘉泰姆

4.5XvW嘉泰姆

24XvW嘉泰姆

0.75~3.6XvW嘉泰姆

ADJXvW嘉泰姆

0.75XvW嘉泰姆

EN, SS, PGOOD,   OVP, UVP, OCP, Built-in BST diodeXvW嘉泰姆

TQFN3X3-16/TQFN3.5X3.5-14XvW嘉泰姆

CXSD62361/AXvW嘉泰姆

2XvW嘉泰姆

24XvW嘉泰姆

0.75~3.6XvW嘉泰姆

400/ADJXvW嘉泰姆

0.75XvW嘉泰姆

EN,   SS, PGOOD, OVP, UVP, OCP, VTTREF, Built-in BST diode, DDR1/2/3/3L, 3A/2A   LDO for VTTXvW嘉泰姆

TQFN4X4-24/TQFN3X3-20XvW嘉泰姆

CXSD62362XvW嘉泰姆

4.5XvW嘉泰姆

24XvW嘉泰姆

0.75~3.6XvW嘉泰姆

ADJXvW嘉泰姆

0.75XvW嘉泰姆

EN, PGOOD,   OVP, UVP, OCP, Built-in BST diode, SS, G0 & G1 Controls VOUTXvW嘉泰姆

TQFN3X3-16XvW嘉泰姆

◀ 上一篇:4.5V至28V电池输入恒定实时控制CXSD62357驱动大型同步整流器FET热关机(非锁存)

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下一篇▶:4.5V至24V电池输入恒定实时控制CXSD62359输入/输出电压比恒定的开关频率无电流感应电阻0.75V至3.6V可调输出