CXSD62108单相恒定时间同步的脉宽调制控制器驱动N通道mosfet笔记本电脑中产生低压芯片组RAM电源的电压

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发表时间：2020-04-23浏览次数：138

CXSD62108单相恒定时间同步的脉宽调制控制器驱动N通道mosfet笔记本电脑中产生低压芯片组RAM电源的电压

目录Wk5嘉泰姆

1.产品概述         2.产品特点Wk5嘉泰姆
3.应用范围       4.下载产品资料PDF文档 Wk5嘉泰姆
5.产品封装图                     6.电路原理图             Wk5嘉泰姆
7.功能概述       8.相关产品Wk5嘉泰姆

一,产品概述(General Description) Wk5嘉泰姆
The CXSD62108 is a single-phase, constant-on-time,synchronous PWMWk5嘉泰姆
controller, which drives N-channel MOSFETs. The CXSD62108 steps down highWk5嘉泰姆
voltage to generate low-voltage chipset or RAM supplies in notebook computers.Wk5嘉泰姆
The CXSD62108 provides excellent transient response and accurate DCWk5嘉泰姆
voltage output in either PFM or PWM Mode.In Pulse Frequency Mode (PFM),Wk5嘉泰姆
the CXSD62108 provides very high efficiency over light to heavy loads with Wk5嘉泰姆

loading-modulated switching frequencies. In PWM Mode, the converter worksWk5嘉泰姆

nearly at constant frequency for low-noise requirements.Wk5嘉泰姆
The CXSD62108 is equipped with accurate positive current-limit, outputWk5嘉泰姆
under-voltage, and output over-voltage protections, perfect for NB applications.Wk5嘉泰姆
The Power-On-Reset function monitors the voltage on VCC and PVCC toWk5嘉泰姆
prevent wrong operation during power-on. The CXSD62108 has a 1.2ms digitalWk5嘉泰姆
soft-start and built-in an integrated output discharge device for soft-stop. An Wk5嘉泰姆

internal integrated soft-start ramps up the output voltage with programmable Wk5嘉泰姆

slew rate to reduce the start-up current. A soft-stop function actively Wk5嘉泰姆

discharges the output capacitors.Wk5嘉泰姆
The CXSD62108 is available in 14pin TSSOP, 14pin QFN and 16pin TQFNWk5嘉泰姆
packages respectively.Wk5嘉泰姆
二.产品特点(Features)Wk5嘉泰姆
Adjustable Output Voltage from +0.75V to +5.5VWk5嘉泰姆
- 0.75V Reference VoltageWk5嘉泰姆
- ±1% Accuracy Over-TemperatureWk5嘉泰姆
Operates from An Input Battery Voltage Range ofWk5嘉泰姆
+1.8V to +28VWk5嘉泰姆
Power-On-Reset Monitoring on VCC Pin and PVCC PinWk5嘉泰姆
Excellent Line and Load Transient ResponsesWk5嘉泰姆
PFM Mode for Increased Light Load EfficiencyWk5嘉泰姆
Programmable PWM Frequency from 100kHz to 500kHzWk5嘉泰姆
Integrated MOSFET DriversWk5嘉泰姆
Integrated Bootstrap Forward P-CH MOSFETWk5嘉泰姆
Adjustable Integrated Soft-Start and Soft-StopWk5嘉泰姆
Selectable Forced PWM or Automatic PFM/PWM ModeWk5嘉泰姆
Power Good MonitoringWk5嘉泰姆
70% Under-Voltage ProtectionWk5嘉泰姆
125% Over-Voltage ProtectionWk5嘉泰姆
Adjustable Current-Limit ProtectionWk5嘉泰姆
- Using Sense Low-Side MOSFET’s RDS(ON)Wk5嘉泰姆
Over-Temperature ProtectionWk5嘉泰姆
TSSOP-14, QFN3.5x3.5-14, and TQFN3x3-16 PackagesWk5嘉泰姆
Lead Free and Green Devices Available (RoHS Compliant)Wk5嘉泰姆
三,应用范围 (Applications)Wk5嘉泰姆
NotebookWk5嘉泰姆
Table PCWk5嘉泰姆
Hand-Held PortableWk5嘉泰姆
AIO PCWk5嘉泰姆
四.下载产品资料PDF文档 Wk5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！Wk5嘉泰姆

QQ截图20160419174301.jpg Wk5嘉泰姆

五,产品封装图 (Package)Wk5嘉泰姆

Wk5嘉泰姆

六.电路原理图Wk5嘉泰姆

Wk5嘉泰姆
七,功能概述Wk5嘉泰姆

Layout Consideration (Cont.)Wk5嘉泰姆
· The signals going through theses traces have both high dv/dt and high di/dt with high peak charging and dis-Wk5嘉泰姆
charging current. The traces from the gate drivers to the MOSFETs (UGATE and LGATE) should be short and wide.Wk5嘉泰姆
· Place the source of the high-side MOSFET and the drain of the low-side MOSFET as close as possible. Minimiz-Wk5嘉泰姆
ing the impedance with wide layout plane between the two pads reduces the voltage bounce of the node. InWk5嘉泰姆
addition, the large layout plane between the drain of the MOSFETs (VIN and PHASE nodes) can get better heatWk5嘉泰姆
sinking.Wk5嘉泰姆
· The PGND is the current sensing circuit reference ground and also the power ground of the LGATE low-Wk5嘉泰姆
side MOSFET. On the hand, the PGND trace should be a separate trace and independently go to the source of theWk5嘉泰姆
low-side MOSFET. Besides, the current sense resistor should be close to OCSET pin to avoid parasitic capaci-Wk5嘉泰姆
tor effect and noise coupling.Wk5嘉泰姆
· Decoupling capacitors, the resistor-divider, and boot capacitor should be close to their pins. (For example, placeWk5嘉泰姆
the decoupling ceramic capacitor close to the drain of the high-side MOSFET as close as possible.)Wk5嘉泰姆
· The input bulk capacitors should be close to the drain of the high-side MOSFET, and the output bulk capacitorsWk5嘉泰姆
should be close to the loads. The input capacitor’s ground should be close to the grounds of the output capacitorsWk5嘉泰姆
and low-side MOSFET.Wk5嘉泰姆
· Locate the resistor-divider close to the FB pin to mini-mize the high impedance trace. In addition, FB pin tracesWk5嘉泰姆
can’t be close to the switching signal traces (UGATE, LGATE, BOOT, and PHASE).Wk5嘉泰姆
八,相关产品 更多同类产品...... Wk5嘉泰姆

Switching Regulator > Buck ControllerWk5嘉泰姆
Part_No Wk5嘉泰姆	Package Wk5嘉泰姆	ArchiWk5嘉泰姆 tectuWk5嘉泰姆	PhaseWk5嘉泰姆	No.ofWk5嘉泰姆 PWMWk5嘉泰姆 OutputWk5嘉泰姆	Output Wk5嘉泰姆 CurrentWk5嘉泰姆 (A) Wk5嘉泰姆	InputWk5嘉泰姆 Voltage (V) Wk5嘉泰姆		ReferenceWk5嘉泰姆 VoltageWk5嘉泰姆 (V) Wk5嘉泰姆	Bias Wk5嘉泰姆 VoltageWk5嘉泰姆 (V) Wk5嘉泰姆	QuiescentWk5嘉泰姆 CurrentWk5嘉泰姆 (uA) Wk5嘉泰姆
Part_No Wk5嘉泰姆	Package Wk5嘉泰姆	ArchiWk5嘉泰姆 tectuWk5嘉泰姆	PhaseWk5嘉泰姆	No.ofWk5嘉泰姆 PWMWk5嘉泰姆 OutputWk5嘉泰姆	Output Wk5嘉泰姆 CurrentWk5嘉泰姆 (A) Wk5嘉泰姆	minWk5嘉泰姆	maxWk5嘉泰姆	ReferenceWk5嘉泰姆 VoltageWk5嘉泰姆 (V) Wk5嘉泰姆	Bias Wk5嘉泰姆 VoltageWk5嘉泰姆 (V) Wk5嘉泰姆	QuiescentWk5嘉泰姆 CurrentWk5嘉泰姆 (uA) Wk5嘉泰姆
CXSD6273Wk5嘉泰姆	SOP-14Wk5嘉泰姆 QSOP-16Wk5嘉泰姆 QFN4x4-16Wk5嘉泰姆	VM Wk5嘉泰姆	1 Wk5嘉泰姆	1 Wk5嘉泰姆	30Wk5嘉泰姆	2.9 Wk5嘉泰姆	13.2Wk5嘉泰姆	0.9Wk5嘉泰姆	12 Wk5嘉泰姆	8000Wk5嘉泰姆
CXSD6274Wk5嘉泰姆	SOP-8Wk5嘉泰姆	VM Wk5嘉泰姆	1Wk5嘉泰姆	1Wk5嘉泰姆	20Wk5嘉泰姆	2.9 Wk5嘉泰姆	13.2 Wk5嘉泰姆	0.8Wk5嘉泰姆	12Wk5嘉泰姆	5000Wk5嘉泰姆
CXSD6274CWk5嘉泰姆	SOP-8Wk5嘉泰姆	VMWk5嘉泰姆	1Wk5嘉泰姆	1Wk5嘉泰姆	20Wk5嘉泰姆	2.9Wk5嘉泰姆	13.2Wk5嘉泰姆	0.8Wk5嘉泰姆	12Wk5嘉泰姆	5000Wk5嘉泰姆
CXSD6275Wk5嘉泰姆	QFN4x4-24Wk5嘉泰姆	VMWk5嘉泰姆	2Wk5嘉泰姆	1Wk5嘉泰姆	60Wk5嘉泰姆	3.1Wk5嘉泰姆	13.2Wk5嘉泰姆	0.6Wk5嘉泰姆	12Wk5嘉泰姆	5000Wk5嘉泰姆
CXSD6276Wk5嘉泰姆	SOP-8Wk5嘉泰姆	VMWk5嘉泰姆	1Wk5嘉泰姆	1Wk5嘉泰姆	20Wk5嘉泰姆	2.2Wk5嘉泰姆	13.2Wk5嘉泰姆	0.8Wk5嘉泰姆	5~12Wk5嘉泰姆	2100Wk5嘉泰姆
CXSD6276AWk5嘉泰姆	SOP-8Wk5嘉泰姆	VMWk5嘉泰姆	1Wk5嘉泰姆	1Wk5嘉泰姆	20Wk5嘉泰姆	2.2Wk5嘉泰姆	13.2Wk5嘉泰姆	0.8Wk5嘉泰姆	5~12Wk5嘉泰姆	2100Wk5嘉泰姆
CXSD6277/A/BWk5嘉泰姆	SOP8\|TSSOP8Wk5嘉泰姆	VMWk5嘉泰姆	1Wk5嘉泰姆	1Wk5嘉泰姆	5Wk5嘉泰姆	5Wk5嘉泰姆	13.2Wk5嘉泰姆	1.25\|0.8Wk5嘉泰姆	5~12Wk5嘉泰姆	3000Wk5嘉泰姆
CXSD6278Wk5嘉泰姆	SOP-8Wk5嘉泰姆	VMWk5嘉泰姆	1Wk5嘉泰姆	1Wk5嘉泰姆	10Wk5嘉泰姆	3.3Wk5嘉泰姆	5.5Wk5嘉泰姆	0.8Wk5嘉泰姆	5Wk5嘉泰姆	2100Wk5嘉泰姆
CXSD6279BWk5嘉泰姆	SOP-14Wk5嘉泰姆	VM Wk5嘉泰姆	1Wk5嘉泰姆	1Wk5嘉泰姆	10Wk5嘉泰姆	5Wk5嘉泰姆	13.2Wk5嘉泰姆	0.8Wk5嘉泰姆	12Wk5嘉泰姆	2000Wk5嘉泰姆
CXSD6280Wk5嘉泰姆	TSSOP-24Wk5嘉泰姆 \|QFN5x5-32Wk5嘉泰姆	VMWk5嘉泰姆	1Wk5嘉泰姆	2Wk5嘉泰姆	20Wk5嘉泰姆	5Wk5嘉泰姆	13.2Wk5嘉泰姆	0.6Wk5嘉泰姆	5~12Wk5嘉泰姆	4000Wk5嘉泰姆
CXSD6281NWk5嘉泰姆	SOP14Wk5嘉泰姆 QSOP16Wk5嘉泰姆 QFN-16Wk5嘉泰姆	VMWk5嘉泰姆	1Wk5嘉泰姆	1Wk5嘉泰姆	30Wk5嘉泰姆	2.9Wk5嘉泰姆	13.2Wk5嘉泰姆	0.9Wk5嘉泰姆	12Wk5嘉泰姆	4000Wk5嘉泰姆
CXSD6282Wk5嘉泰姆	SOP-14Wk5嘉泰姆	VMWk5嘉泰姆	1Wk5嘉泰姆	1Wk5嘉泰姆	30Wk5嘉泰姆	2.2Wk5嘉泰姆	13.2Wk5嘉泰姆	0.6Wk5嘉泰姆	12Wk5嘉泰姆	5000Wk5嘉泰姆
CXSD6282AWk5嘉泰姆	SOP-14Wk5嘉泰姆	VMWk5嘉泰姆	1Wk5嘉泰姆	1Wk5嘉泰姆	30Wk5嘉泰姆	2.2Wk5嘉泰姆	13.2Wk5嘉泰姆	0.6Wk5嘉泰姆	12Wk5嘉泰姆	5000Wk5嘉泰姆
CXSD6283Wk5嘉泰姆	SOP-14Wk5嘉泰姆	VMWk5嘉泰姆	1Wk5嘉泰姆	1Wk5嘉泰姆	25Wk5嘉泰姆	2.2Wk5嘉泰姆	13.2Wk5嘉泰姆	0.8Wk5嘉泰姆	12Wk5嘉泰姆	5000Wk5嘉泰姆
CXSD6284/AWk5嘉泰姆	LQFP7x7 48Wk5嘉泰姆 TQFN7x7-48Wk5嘉泰姆	VMWk5嘉泰姆	1Wk5嘉泰姆	6Wk5嘉泰姆	0.015Wk5嘉泰姆	1.4Wk5嘉泰姆	6.5Wk5嘉泰姆	-Wk5嘉泰姆	5Wk5嘉泰姆	1800Wk5嘉泰姆
CXSD6285Wk5嘉泰姆	TSSOP-24PWk5嘉泰姆	VMWk5嘉泰姆	1Wk5嘉泰姆	2Wk5嘉泰姆	20Wk5嘉泰姆	2.97Wk5嘉泰姆	5.5Wk5嘉泰姆	0.8Wk5嘉泰姆	5~12Wk5嘉泰姆	5000Wk5嘉泰姆
CXSD6286Wk5嘉泰姆	SOP-14Wk5嘉泰姆	VMWk5嘉泰姆	1Wk5嘉泰姆	1Wk5嘉泰姆	10Wk5嘉泰姆	5Wk5嘉泰姆	13.2Wk5嘉泰姆	0.8Wk5嘉泰姆	12Wk5嘉泰姆	3000Wk5嘉泰姆
CXSD6287Wk5嘉泰姆	SOP-8-P\|DIP-8Wk5嘉泰姆	VMWk5嘉泰姆	1Wk5嘉泰姆	1Wk5嘉泰姆	30Wk5嘉泰姆	2.9Wk5嘉泰姆	13.2Wk5嘉泰姆	1.2Wk5嘉泰姆	12Wk5嘉泰姆	3000Wk5嘉泰姆
CXSD6288Wk5嘉泰姆	SSOP28Wk5嘉泰姆 QFN4x4-24Wk5嘉泰姆	VMWk5嘉泰姆	1Wk5嘉泰姆	2Wk5嘉泰姆	20Wk5嘉泰姆	5Wk5嘉泰姆	24Wk5嘉泰姆	0.9Wk5嘉泰姆	5Wk5嘉泰姆	1200Wk5嘉泰姆
CXSD6289Wk5嘉泰姆	SOP-20Wk5嘉泰姆	VMWk5嘉泰姆	1Wk5嘉泰姆	2Wk5嘉泰姆	20Wk5嘉泰姆	2.2Wk5嘉泰姆	13.2Wk5嘉泰姆	0.6Wk5嘉泰姆	5~12Wk5嘉泰姆	4000Wk5嘉泰姆
CXSD629Wk5嘉泰姆

上一篇：高性能笔记本电脑PWM控制器CXSD62107单相定时同步的PWM控制器它驱动N通道mosfet

下一篇：带线性调节器CXSD62109的单Buck PWM控制器是一种单相恒导通同步的带线性调节器它驱动N通道mosfet

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