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:114

目录

1.产品概述       2.产品特点     Wm0嘉泰姆

3.应用范围       4.技术规格书下载(PDF文档)Wm0嘉泰姆

5.产品封装       6.电路原理图  Wm0嘉泰姆

7.相关产品Wm0嘉泰姆

   产品概述 返回TOPWm0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TOPWm0嘉泰姆


--PWM Controller Wm0嘉泰姆

„ Ultra-High Efficiency Wm0嘉泰姆

„ No Current-Sense Resistor (Lossless ILIMIT) Wm0嘉泰姆

„ Quasi-PWM with 100ns Load-Step Response Wm0嘉泰姆

„ 1% VOUT Accuracy Over Line and Load Wm0嘉泰姆

„ 0.75V to 3.6V Adjustable Output Range Wm0嘉泰姆

„ 4.5V to 24V Battery Input Range Wm0嘉泰姆

„ OVP & UVP Wm0嘉泰姆

„ 1.7ms Soft-Start Wm0嘉泰姆

„ Drives Large Synchronous-Rectifier FETs Wm0嘉泰姆

„ Power-Good Indicator Wm0嘉泰姆

--LDO Controller Wm0嘉泰姆

„ 1.5% Accuracy Over Line and Load Wm0嘉泰姆

„ Adjustable Output down to 0.75V Wm0嘉泰姆

„ Independent Enable and Power Good Indicator Wm0嘉泰姆

„ Drives N-channel MOSFET within Rail to Rail Controller Voltage Wm0嘉泰姆

„ MLCC and POSCAP StableWm0嘉泰姆

   应用范围 返回TOPWm0嘉泰姆


„ Notebook ComputersWm0嘉泰姆

„ CPU Core Supply Wm0嘉泰姆

„ Chipset/RAM Supply as Low as 0.75V Wm0嘉泰姆

„ 1.8V and 2.5V I/O Supply Wm0嘉泰姆

„ Networking Power SupplyWm0嘉泰姆

   技术规格书(产品PDF) 返回TOP Wm0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Wm0嘉泰姆

 QQ截图20160419174301.jpgWm0嘉泰姆

产品封装图 返回TOPWm0嘉泰姆


image.pngWm0嘉泰姆

电路原理图 返回TOPWm0嘉泰姆

 Wm0嘉泰姆


 Wm0嘉泰姆

a

相关芯片选择指南 返回TOP            更多同类产品......


 Wm0嘉泰姆

Synchronous (Quasi-PWM) Step Down ControllerWm0嘉泰姆

Part   NO.Wm0嘉泰姆

Vin(V)Wm0嘉泰姆

min.Wm0嘉泰姆

Vin(V)Wm0嘉泰姆

max.Wm0嘉泰姆

VOUTWm0嘉泰姆

(V)Wm0嘉泰姆

FSWWm0嘉泰姆

(k Hz)Wm0嘉泰姆

FBWm0嘉泰姆

(V)Wm0嘉泰姆

NoteWm0嘉泰姆

PackageWm0嘉泰姆

CXSD62355Wm0嘉泰姆

3Wm0嘉泰姆

28Wm0嘉泰姆

0.7~1.8Wm0嘉泰姆

300/400Wm0嘉泰姆

0.8Wm0嘉泰姆

EN, SS, PGOOD,   OVP, UVP, OCP, VTTREF, Built-in BST diode, DDR1/2/3/3L, 2A LDO for VTTWm0嘉泰姆

TQFN3X3-20Wm0嘉泰姆

CXSD62356Wm0嘉泰姆

4.5Wm0嘉泰姆

28Wm0嘉泰姆

0.7~2.6Wm0嘉泰姆

ADJWm0嘉泰姆

0.7Wm0嘉泰姆

EN,   PGOOD, OVP, UVP, OCP, VOUT Adjustable,1.5ms VOUT Servo Soft Start, 4700ppm/°C   RON Coefficient Wm0嘉泰姆

TDFN3X3-10Wm0嘉泰姆

CXSD62357Wm0嘉泰姆

4.5Wm0嘉泰姆

28Wm0嘉泰姆

0.5~3.3Wm0嘉泰姆

ADJWm0嘉泰姆

0.5Wm0嘉泰姆

EN,   PGOOD, OVP, UVP, OCP, VOUT Adjustable, 1.5ms VOUT Servo Soft Start,   4700ppm/°C RON CoefficientWm0嘉泰姆

TQFN2X2-12Wm0嘉泰姆

CXSD62358Wm0嘉泰姆

4.5Wm0嘉泰姆

24Wm0嘉泰姆

0.75~3.6Wm0嘉泰姆

ADJWm0嘉泰姆

0.75Wm0嘉泰姆

EN, SS, PGOOD,   OVP, UVP, OCP, Built-in BST diodeWm0嘉泰姆

TQFN3X3-16Wm0嘉泰姆

CXSD62359Wm0嘉泰姆

4.5Wm0嘉泰姆

24Wm0嘉泰姆

0.75~3.6Wm0嘉泰姆

ADJWm0嘉泰姆

0.75Wm0嘉泰姆

EN,   SS, PGOOD, OVP, UVP, OCP, Built-in BST diodeWm0嘉泰姆

TQFN3X3-16Wm0嘉泰姆

CXSD62360Wm0嘉泰姆

4.5Wm0嘉泰姆

24Wm0嘉泰姆

0.75~3.6Wm0嘉泰姆

ADJWm0嘉泰姆

0.75Wm0嘉泰姆

EN, SS, PGOOD,   OVP, UVP, OCP, Built-in BST diodeWm0嘉泰姆

TQFN3X3-16/TQFN3.5X3.5-14Wm0嘉泰姆

CXSD62361/AWm0嘉泰姆

2Wm0嘉泰姆

24Wm0嘉泰姆

0.75~3.6Wm0嘉泰姆

400/ADJWm0嘉泰姆

0.75Wm0嘉泰姆

EN,   SS, PGOOD, OVP, UVP, OCP, VTTREF, Built-in BST diode, DDR1/2/3/3L, 3A/2A   LDO for VTTWm0嘉泰姆

TQFN4X4-24/TQFN3X3-20Wm0嘉泰姆

CXSD62362Wm0嘉泰姆

4.5Wm0嘉泰姆

24Wm0嘉泰姆

0.75~3.6Wm0嘉泰姆

ADJWm0嘉泰姆

0.75Wm0嘉泰姆

EN, PGOOD,   OVP, UVP, OCP, Built-in BST diode, SS, G0 & G1 Controls VOUTWm0嘉泰姆

TQFN3X3-16Wm0嘉泰姆