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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目录

1.产品概述       2.产品特点     7hL嘉泰姆

3.应用范围       4.技术规格书下载(PDF文档)7hL嘉泰姆

5.产品封装       6.电路原理图  7hL嘉泰姆

7.相关产品7hL嘉泰姆

   产品概述 返回TOP7hL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TOP7hL嘉泰姆


„ Ultra-High Efficiency 7hL嘉泰姆

„ 4700ppm/°C RDS(ON) Current Sensing ( without Current-Sense Resistor ) 7hL嘉泰姆

„ Quasi-PWM with 100ns Load-Step Response „ Built in 1% 0.5V Reference Voltage 7hL嘉泰姆

„ 0.5V to 3.3V Adjustable Output Range 7hL嘉泰姆

„ 4.5V to 28V Battery Input Range 7hL嘉泰姆

„ Integrated Boost Diode 7hL嘉泰姆

„ OVP & UVP 7hL嘉泰姆

„ 1.5ms Voltage Servo Soft-Start 7hL嘉泰姆

„ Drives Large Synchronous-Rectifier FETs 7hL嘉泰姆

„ Power-Good Indicator 7hL嘉泰姆

„ Thermal Shutdown (Non-latch)7hL嘉泰姆

   应用范围 返回TOP7hL嘉泰姆


„ Notebook Computers 7hL嘉泰姆

„ CPU Core Supply 7hL嘉泰姆

„ I/O Supply 7hL嘉泰姆

„ Chipset/RAM Supply as Low as 0.5V7hL嘉泰姆

   技术规格书(产品PDF) 返回TOP 7hL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7hL嘉泰姆

 QQ截图20160419174301.jpg7hL嘉泰姆

产品封装图 返回TOP7hL嘉泰姆


image.png7hL嘉泰姆

电路原理图 返回TOP7hL嘉泰姆

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 7hL嘉泰姆

Synchronous (Quasi-PWM) Step Down Controller7hL嘉泰姆

Part   NO.7hL嘉泰姆

Vin(V)7hL嘉泰姆

min.7hL嘉泰姆

Vin(V)7hL嘉泰姆

max.7hL嘉泰姆

VOUT7hL嘉泰姆

(V)7hL嘉泰姆

FSW7hL嘉泰姆

(k Hz)7hL嘉泰姆

FB7hL嘉泰姆

(V)7hL嘉泰姆

Note7hL嘉泰姆

Package7hL嘉泰姆

CXSD623557hL嘉泰姆

37hL嘉泰姆

287hL嘉泰姆

0.7~1.87hL嘉泰姆

300/4007hL嘉泰姆

0.87hL嘉泰姆

EN, SS, PGOOD,   OVP, UVP, OCP, VTTREF, Built-in BST diode, DDR1/2/3/3L, 2A LDO for VTT7hL嘉泰姆

TQFN3X3-207hL嘉泰姆

CXSD623567hL嘉泰姆

4.57hL嘉泰姆

287hL嘉泰姆

0.7~2.67hL嘉泰姆

ADJ7hL嘉泰姆

0.77hL嘉泰姆

EN,   PGOOD, OVP, UVP, OCP, VOUT Adjustable,1.5ms VOUT Servo Soft Start, 4700ppm/°C   RON Coefficient 7hL嘉泰姆

TDFN3X3-107hL嘉泰姆

CXSD623577hL嘉泰姆

4.57hL嘉泰姆

287hL嘉泰姆

0.5~3.37hL嘉泰姆

ADJ7hL嘉泰姆

0.57hL嘉泰姆

EN,   PGOOD, OVP, UVP, OCP, VOUT Adjustable, 1.5ms VOUT Servo Soft Start,   4700ppm/°C RON Coefficient7hL嘉泰姆

TQFN2X2-127hL嘉泰姆

CXSD623587hL嘉泰姆

4.57hL嘉泰姆

247hL嘉泰姆

0.75~3.67hL嘉泰姆

ADJ7hL嘉泰姆

0.757hL嘉泰姆

EN, SS, PGOOD,   OVP, UVP, OCP, Built-in BST diode7hL嘉泰姆

TQFN3X3-167hL嘉泰姆

CXSD623597hL嘉泰姆

4.57hL嘉泰姆

247hL嘉泰姆

0.75~3.67hL嘉泰姆

ADJ7hL嘉泰姆

0.757hL嘉泰姆

EN,   SS, PGOOD, OVP, UVP, OCP, Built-in BST diode7hL嘉泰姆

TQFN3X3-167hL嘉泰姆

CXSD623607hL嘉泰姆

4.57hL嘉泰姆

247hL嘉泰姆

0.75~3.67hL嘉泰姆

ADJ7hL嘉泰姆

0.757hL嘉泰姆

EN, SS, PGOOD,   OVP, UVP, OCP, Built-in BST diode7hL嘉泰姆

TQFN3X3-16/TQFN3.5X3.5-147hL嘉泰姆

CXSD62361/A7hL嘉泰姆

27hL嘉泰姆

247hL嘉泰姆

0.75~3.67hL嘉泰姆

400/ADJ7hL嘉泰姆

0.757hL嘉泰姆

EN,   SS, PGOOD, OVP, UVP, OCP, VTTREF, Built-in BST diode, DDR1/2/3/3L, 3A/2A   LDO for VTT7hL嘉泰姆

TQFN4X4-24/TQFN3X3-207hL嘉泰姆

CXSD623627hL嘉泰姆

4.57hL嘉泰姆

247hL嘉泰姆

0.75~3.67hL嘉泰姆

ADJ7hL嘉泰姆

0.757hL嘉泰姆

EN, PGOOD,   OVP, UVP, OCP, Built-in BST diode, SS, G0 & G1 Controls VOUT7hL嘉泰姆

TQFN3X3-167hL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