CXSD62358

CXSD62358PWM控制器采用恒导通控制方案,可以方便地处理宽输入/输出电压比,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”响应。CXSD62358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。驱动超大同步整流mosfet的能力进一步提高了效率。单级降压转换允许这些设备直接降压高压电池,以获得尽可能高的效率

 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

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1.产品概述       2.产品特点     0ih嘉泰姆

3.应用范围       4.技术规格书下载(PDF文档)0ih嘉泰姆

5.产品封装       6.电路原理图  0ih嘉泰姆

7.相关产品0ih嘉泰姆

   产品概述 返回TOP0ih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TOP0ih嘉泰姆


--PWM Controller 0ih嘉泰姆

„ Ultra-High Efficiency 0ih嘉泰姆

„ No Current-Sense Resistor (Lossless ILIMIT) 0ih嘉泰姆

„ Quasi-PWM with 100ns Load-Step Response 0ih嘉泰姆

„ 1% VOUT Accuracy Over Line and Load 0ih嘉泰姆

„ 0.75V to 3.6V Adjustable Output Range 0ih嘉泰姆

„ 4.5V to 24V Battery Input Range 0ih嘉泰姆

„ OVP & UVP 0ih嘉泰姆

„ 1.7ms Soft-Start 0ih嘉泰姆

„ Drives Large Synchronous-Rectifier FETs 0ih嘉泰姆

„ Power-Good Indicator 0ih嘉泰姆

--LDO Controller 0ih嘉泰姆

„ 1.5% Accuracy Over Line and Load 0ih嘉泰姆

„ Adjustable Output down to 0.75V 0ih嘉泰姆

„ Independent Enable and Power Good Indicator 0ih嘉泰姆

„ Drives N-channel MOSFET within Rail to Rail Controller Voltage 0ih嘉泰姆

„ MLCC and POSCAP Stable0ih嘉泰姆

   应用范围 返回TOP0ih嘉泰姆


„ Notebook Computers0ih嘉泰姆

„ CPU Core Supply 0ih嘉泰姆

„ Chipset/RAM Supply as Low as 0.75V 0ih嘉泰姆

„ 1.8V and 2.5V I/O Supply 0ih嘉泰姆

„ Networking Power Supply0ih嘉泰姆

   技术规格书(产品PDF) 返回TOP 0ih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0ih嘉泰姆

 QQ截图20160419174301.jpg0ih嘉泰姆

产品封装图 返回TOP0ih嘉泰姆


image.png0ih嘉泰姆

电路原理图 返回TOP0ih嘉泰姆

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Synchronous (Quasi-PWM) Step Down Controller0ih嘉泰姆

Part   NO.0ih嘉泰姆

Vin(V)0ih嘉泰姆

min.0ih嘉泰姆

Vin(V)0ih嘉泰姆

max.0ih嘉泰姆

VOUT0ih嘉泰姆

(V)0ih嘉泰姆

FSW0ih嘉泰姆

(k Hz)0ih嘉泰姆

FB0ih嘉泰姆

(V)0ih嘉泰姆

Note0ih嘉泰姆

Package0ih嘉泰姆

CXSD623550ih嘉泰姆

30ih嘉泰姆

280ih嘉泰姆

0.7~1.80ih嘉泰姆

300/4000ih嘉泰姆

0.80ih嘉泰姆

EN, SS, PGOOD,   OVP, UVP, OCP, VTTREF, Built-in BST diode, DDR1/2/3/3L, 2A LDO for VTT0ih嘉泰姆

TQFN3X3-200ih嘉泰姆

CXSD623560ih嘉泰姆

4.50ih嘉泰姆

280ih嘉泰姆

0.7~2.60ih嘉泰姆

ADJ0ih嘉泰姆

0.70ih嘉泰姆

EN,   PGOOD, OVP, UVP, OCP, VOUT Adjustable,1.5ms VOUT Servo Soft Start, 4700ppm/°C   RON Coefficient 0ih嘉泰姆

TDFN3X3-100ih嘉泰姆

CXSD623570ih嘉泰姆

4.50ih嘉泰姆

280ih嘉泰姆

0.5~3.30ih嘉泰姆

ADJ0ih嘉泰姆

0.50ih嘉泰姆

EN,   PGOOD, OVP, UVP, OCP, VOUT Adjustable, 1.5ms VOUT Servo Soft Start,   4700ppm/°C RON Coefficient0ih嘉泰姆

TQFN2X2-120ih嘉泰姆

CXSD623580ih嘉泰姆

4.50ih嘉泰姆

240ih嘉泰姆

0.75~3.60ih嘉泰姆

ADJ0ih嘉泰姆

0.750ih嘉泰姆

EN, SS, PGOOD,   OVP, UVP, OCP, Built-in BST diode0ih嘉泰姆

TQFN3X3-160ih嘉泰姆

CXSD623590ih嘉泰姆

4.50ih嘉泰姆

240ih嘉泰姆

0.75~3.60ih嘉泰姆

ADJ0ih嘉泰姆

0.750ih嘉泰姆

EN,   SS, PGOOD, OVP, UVP, OCP, Built-in BST diode0ih嘉泰姆

TQFN3X3-160ih嘉泰姆

CXSD623600ih嘉泰姆

4.50ih嘉泰姆

240ih嘉泰姆

0.75~3.60ih嘉泰姆

ADJ0ih嘉泰姆

0.750ih嘉泰姆

EN, SS, PGOOD,   OVP, UVP, OCP, Built-in BST diode0ih嘉泰姆

TQFN3X3-16/TQFN3.5X3.5-140ih嘉泰姆

CXSD62361/A0ih嘉泰姆

20ih嘉泰姆

240ih嘉泰姆

0.75~3.60ih嘉泰姆

400/ADJ0ih嘉泰姆

0.750ih嘉泰姆

EN,   SS, PGOOD, OVP, UVP, OCP, VTTREF, Built-in BST diode, DDR1/2/3/3L, 3A/2A   LDO for VTT0ih嘉泰姆

TQFN4X4-24/TQFN3X3-200ih嘉泰姆

CXSD623620ih嘉泰姆

4.50ih嘉泰姆

240ih嘉泰姆

0.75~3.60ih嘉泰姆

ADJ0ih嘉泰姆

0.750ih嘉泰姆

EN, PGOOD,   OVP, UVP, OCP, Built-in BST diode, SS, G0 & G1 Controls VOUT0ih嘉泰姆

TQFN3X3-160ih嘉泰姆

◀ 上一篇: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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下一篇▶:4.5V至24V电池输入恒定实时控制CXSD62359输入/输出电压比恒定的开关频率无电流感应电阻0.75V至3.6V可调输出