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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
发表时间:2020-05-21浏览次数:112
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
 

目录

1.产品概述       2.产品特点     6nj嘉泰姆

3.应用范围       4.技术规格书下载(PDF文档)6nj嘉泰姆

5.产品封装       6.电路原理图  6nj嘉泰姆

7.相关产品6nj嘉泰姆

   产品概述 返回TOP6nj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TOP6nj嘉泰姆


--PWM Controller 6nj嘉泰姆

„ Ultra-High Efficiency 6nj嘉泰姆

„ No Current-Sense Resistor (Lossless ILIMIT) 6nj嘉泰姆

„ Quasi-PWM with 100ns Load-Step Response 6nj嘉泰姆

„ 1% VOUT Accuracy Over Line and Load 6nj嘉泰姆

„ 0.75V to 3.6V Adjustable Output Range 6nj嘉泰姆

„ 4.5V to 24V Battery Input Range 6nj嘉泰姆

„ OVP & UVP 6nj嘉泰姆

„ 1.7ms Soft-Start 6nj嘉泰姆

„ Drives Large Synchronous-Rectifier FETs 6nj嘉泰姆

„ Power-Good Indicator 6nj嘉泰姆

--LDO Controller 6nj嘉泰姆

„ 1.5% Accuracy Over Line and Load 6nj嘉泰姆

„ Adjustable Output down to 0.75V 6nj嘉泰姆

„ Independent Enable and Power Good Indicator 6nj嘉泰姆

„ Drives N-channel MOSFET within Rail to Rail Controller Voltage 6nj嘉泰姆

„ MLCC and POSCAP Stable6nj嘉泰姆

   应用范围 返回TOP6nj嘉泰姆


„ Notebook Computers6nj嘉泰姆

„ CPU Core Supply 6nj嘉泰姆

„ Chipset/RAM Supply as Low as 0.75V 6nj嘉泰姆

„ 1.8V and 2.5V I/O Supply 6nj嘉泰姆

„ Networking Power Supply6nj嘉泰姆

   技术规格书(产品PDF) 返回TOP 6nj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6nj嘉泰姆

 QQ截图20160419174301.jpg6nj嘉泰姆

产品封装图 返回TOP6nj嘉泰姆


image.png6nj嘉泰姆

电路原理图 返回TOP6nj嘉泰姆

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Synchronous (Quasi-PWM) Step Down Controller6nj嘉泰姆

Part   NO.6nj嘉泰姆

Vin(V)6nj嘉泰姆

min.6nj嘉泰姆

Vin(V)6nj嘉泰姆

max.6nj嘉泰姆

VOUT6nj嘉泰姆

(V)6nj嘉泰姆

FSW6nj嘉泰姆

(k Hz)6nj嘉泰姆

FB6nj嘉泰姆

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Note6nj嘉泰姆

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CXSD623556nj嘉泰姆

36nj嘉泰姆

286nj嘉泰姆

0.7~1.86nj嘉泰姆

300/4006nj嘉泰姆

0.86nj嘉泰姆

EN, SS, PGOOD,   OVP, UVP, OCP, VTTREF, Built-in BST diode, DDR1/2/3/3L, 2A LDO for VTT6nj嘉泰姆

TQFN3X3-206nj嘉泰姆

CXSD623566nj嘉泰姆

4.56nj嘉泰姆

286nj嘉泰姆

0.7~2.66nj嘉泰姆

ADJ6nj嘉泰姆

0.76nj嘉泰姆

EN,   PGOOD, OVP, UVP, OCP, VOUT Adjustable,1.5ms VOUT Servo Soft Start, 4700ppm/°C   RON Coefficient 6nj嘉泰姆

TDFN3X3-106nj嘉泰姆

CXSD623576nj嘉泰姆

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286nj嘉泰姆

0.5~3.36nj嘉泰姆

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TQFN2X2-126nj嘉泰姆

CXSD623586nj嘉泰姆

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246nj嘉泰姆

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EN, SS, PGOOD,   OVP, UVP, OCP, Built-in BST diode6nj嘉泰姆

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CXSD623596nj嘉泰姆

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246nj嘉泰姆

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26nj嘉泰姆

246nj嘉泰姆

0.75~3.66nj嘉泰姆

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TQFN4X4-24/TQFN3X3-206nj嘉泰姆

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EN, PGOOD,   OVP, UVP, OCP, Built-in BST diode, SS, G0 & G1 Controls VOUT6nj嘉泰姆

TQFN3X3-166nj嘉泰姆

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