CXSD62357

CXSD62357使用恒定的实时控制方案来轻松处理宽的输入/输出电压比,并在保持相对恒定的开关频率的同时,对负载瞬态提供100ns的“瞬时通电”响应。CXSD62357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

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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产品订购

产品简介

目录

1.产品概述       2.产品特点     WbQ嘉泰姆

3.应用范围       4.技术规格书下载(PDF文档)WbQ嘉泰姆

5.产品封装       6.电路原理图  WbQ嘉泰姆

7.相关产品WbQ嘉泰姆

   产品概述 返回TOPWbQ嘉泰姆


     CXSD62357 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 CXSD62357 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. The noiseless pulse-skipping mode setting maintains the switching frequency above 25kHz to eliminates the audio noise. The CXSD62357 is intended for CPU core, chipset, DRAM, or other low-voltage supplies as low as 0.5V. The CXSD62357 is available in TQFN2X2-12 package.

   产品特点 返回TOPWbQ嘉泰姆


„ Ultra-High Efficiency WbQ嘉泰姆

„ 4700ppm/°C RDS(ON) Current Sensing ( without Current-Sense Resistor ) WbQ嘉泰姆

„ Quasi-PWM with 100ns Load-Step Response „ Built in 1% 0.5V Reference Voltage WbQ嘉泰姆

„ 0.5V to 3.3V Adjustable Output Range WbQ嘉泰姆

„ 4.5V to 28V Battery Input Range WbQ嘉泰姆

„ Integrated Boost Diode WbQ嘉泰姆

„ OVP & UVP WbQ嘉泰姆

„ 1.5ms Voltage Servo Soft-Start WbQ嘉泰姆

„ Drives Large Synchronous-Rectifier FETs WbQ嘉泰姆

„ Power-Good Indicator WbQ嘉泰姆

„ Thermal Shutdown (Non-latch)WbQ嘉泰姆

   应用范围 返回TOPWbQ嘉泰姆


„ Notebook Computers WbQ嘉泰姆

„ CPU Core Supply WbQ嘉泰姆

„ I/O Supply WbQ嘉泰姆

„ Chipset/RAM Supply as Low as 0.5VWbQ嘉泰姆

   技术规格书(产品PDF) 返回TOP WbQ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WbQ嘉泰姆

 QQ截图20160419174301.jpgWbQ嘉泰姆

产品封装图 返回TOPWbQ嘉泰姆


image.pngWbQ嘉泰姆

电路原理图 返回TOPWbQ嘉泰姆

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Synchronous (Quasi-PWM) Step Down ControllerWbQ嘉泰姆

Part   NO.WbQ嘉泰姆

Vin(V)WbQ嘉泰姆

min.WbQ嘉泰姆

Vin(V)WbQ嘉泰姆

max.WbQ嘉泰姆

VOUTWbQ嘉泰姆

(V)WbQ嘉泰姆

FSWWbQ嘉泰姆

(k Hz)WbQ嘉泰姆

FBWbQ嘉泰姆

(V)WbQ嘉泰姆

NoteWbQ嘉泰姆

PackageWbQ嘉泰姆

CXSD62355WbQ嘉泰姆

3WbQ嘉泰姆

28WbQ嘉泰姆

0.7~1.8WbQ嘉泰姆

300/400WbQ嘉泰姆

0.8WbQ嘉泰姆

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

TQFN3X3-20WbQ嘉泰姆

CXSD62356WbQ嘉泰姆

4.5WbQ嘉泰姆

28WbQ嘉泰姆

0.7~2.6WbQ嘉泰姆

ADJWbQ嘉泰姆

0.7WbQ嘉泰姆

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

TDFN3X3-10WbQ嘉泰姆

CXSD62357WbQ嘉泰姆

4.5WbQ嘉泰姆

28WbQ嘉泰姆

0.5~3.3WbQ嘉泰姆

ADJWbQ嘉泰姆

0.5WbQ嘉泰姆

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

TQFN2X2-12WbQ嘉泰姆

CXSD62358WbQ嘉泰姆

4.5WbQ嘉泰姆

24WbQ嘉泰姆

0.75~3.6WbQ嘉泰姆

ADJWbQ嘉泰姆

0.75WbQ嘉泰姆

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

TQFN3X3-16WbQ嘉泰姆

CXSD62359WbQ嘉泰姆

4.5WbQ嘉泰姆

24WbQ嘉泰姆

0.75~3.6WbQ嘉泰姆

ADJWbQ嘉泰姆

0.75WbQ嘉泰姆

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

TQFN3X3-16WbQ嘉泰姆

CXSD62360WbQ嘉泰姆

4.5WbQ嘉泰姆

24WbQ嘉泰姆

0.75~3.6WbQ嘉泰姆

ADJWbQ嘉泰姆

0.75WbQ嘉泰姆

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

TQFN3X3-16/TQFN3.5X3.5-14WbQ嘉泰姆

CXSD62361/AWbQ嘉泰姆

2WbQ嘉泰姆

24WbQ嘉泰姆

0.75~3.6WbQ嘉泰姆

400/ADJWbQ嘉泰姆

0.75WbQ嘉泰姆

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

TQFN4X4-24/TQFN3X3-20WbQ嘉泰姆

CXSD62362WbQ嘉泰姆

4.5WbQ嘉泰姆

24WbQ嘉泰姆

0.75~3.6WbQ嘉泰姆

ADJWbQ嘉泰姆

0.75WbQ嘉泰姆

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

TQFN3X3-16WbQ嘉泰姆

◀ 上一篇:4.5V至28V电池输入小型降压控制器恒定的实时控制CXSD62356恒定的开关频率1.5ms电压伺服软启动

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下一篇▶: 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