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首页 > Products > Power Management > DC/DC Step-Down Converter > Buck Step-Down Converter >High-Speed Step-Down Controller with LDO Controller for Notebook Computer CXSD62358 PWM controller uses constant on-time control scheme to handle wide input/output voltage ratios with ease and provide
High-Speed Step-Down Controller with LDO Controller for Notebook Computer CXSD62358 PWM controller uses constant on-time control scheme to handle wide input/output voltage ratios with ease and provide

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

High-Speed Step-Down Controller with LDO Controller for Notebook Computer CXSD62358 PWM controller uses constant on-time control scheme to handle wide input/output voltage ratios with ease and provide
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1.产品概述       2.产品特点     vjQ嘉泰姆

3.应用范围       4.技术规格书下载(PDF文档)vjQ嘉泰姆

5.产品封装       6.电路原理图  vjQ嘉泰姆

7.相关产品vjQ嘉泰姆

   产品概述 返回TOPvjQ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TOPvjQ嘉泰姆


--PWM Controller vjQ嘉泰姆

„ Ultra-High Efficiency vjQ嘉泰姆

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

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

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

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

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

„ OVP & UVP vjQ嘉泰姆

„ 1.7ms Soft-Start vjQ嘉泰姆

„ Drives Large Synchronous-Rectifier FETs vjQ嘉泰姆

„ Power-Good Indicator vjQ嘉泰姆

--LDO Controller vjQ嘉泰姆

„ 1.5% Accuracy Over Line and Load vjQ嘉泰姆

„ Adjustable Output down to 0.75V vjQ嘉泰姆

„ Independent Enable and Power Good Indicator vjQ嘉泰姆

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

„ MLCC and POSCAP StablevjQ嘉泰姆

   应用范围 返回TOPvjQ嘉泰姆


„ Notebook ComputersvjQ嘉泰姆

„ CPU Core Supply vjQ嘉泰姆

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

„ 1.8V and 2.5V I/O Supply vjQ嘉泰姆

„ Networking Power SupplyvjQ嘉泰姆

   技术规格书(产品PDF) 返回TOP vjQ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vjQ嘉泰姆

 QQ截图20160419174301.jpgvjQ嘉泰姆

产品封装图 返回TOPvjQ嘉泰姆


image.pngvjQ嘉泰姆

电路原理图 返回TOPvjQ嘉泰姆

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Synchronous (Quasi-PWM) Step Down ControllervjQ嘉泰姆

Part   NO.vjQ嘉泰姆

Vin(V)vjQ嘉泰姆

min.vjQ嘉泰姆

Vin(V)vjQ嘉泰姆

max.vjQ嘉泰姆

VOUTvjQ嘉泰姆

(V)vjQ嘉泰姆

FSWvjQ嘉泰姆

(k Hz)vjQ嘉泰姆

FBvjQ嘉泰姆

(V)vjQ嘉泰姆

NotevjQ嘉泰姆

PackagevjQ嘉泰姆

CXSD62355vjQ嘉泰姆

3vjQ嘉泰姆

28vjQ嘉泰姆

0.7~1.8vjQ嘉泰姆

300/400vjQ嘉泰姆

0.8vjQ嘉泰姆

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

TQFN3X3-20vjQ嘉泰姆

CXSD62356vjQ嘉泰姆

4.5vjQ嘉泰姆

28vjQ嘉泰姆

0.7~2.6vjQ嘉泰姆

ADJvjQ嘉泰姆

0.7vjQ嘉泰姆

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

TDFN3X3-10vjQ嘉泰姆

CXSD62357vjQ嘉泰姆

4.5vjQ嘉泰姆

28vjQ嘉泰姆

0.5~3.3vjQ嘉泰姆

ADJvjQ嘉泰姆

0.5vjQ嘉泰姆

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

TQFN2X2-12vjQ嘉泰姆

CXSD62358vjQ嘉泰姆

4.5vjQ嘉泰姆

24vjQ嘉泰姆

0.75~3.6vjQ嘉泰姆

ADJvjQ嘉泰姆

0.75vjQ嘉泰姆

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

TQFN3X3-16vjQ嘉泰姆

CXSD62359vjQ嘉泰姆

4.5vjQ嘉泰姆

24vjQ嘉泰姆

0.75~3.6vjQ嘉泰姆

ADJvjQ嘉泰姆

0.75vjQ嘉泰姆

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

TQFN3X3-16vjQ嘉泰姆

CXSD62360vjQ嘉泰姆

4.5vjQ嘉泰姆

24vjQ嘉泰姆

0.75~3.6vjQ嘉泰姆

ADJvjQ嘉泰姆

0.75vjQ嘉泰姆

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

TQFN3X3-16/TQFN3.5X3.5-14vjQ嘉泰姆

CXSD62361/AvjQ嘉泰姆

2vjQ嘉泰姆

24vjQ嘉泰姆

0.75~3.6vjQ嘉泰姆

400/ADJvjQ嘉泰姆

0.75vjQ嘉泰姆

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

TQFN4X4-24/TQFN3X3-20vjQ嘉泰姆

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4.5vjQ嘉泰姆

24vjQ嘉泰姆

0.75~3.6vjQ嘉泰姆

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

TQFN3X3-16vjQ嘉泰姆