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：289

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rA2嘉泰姆

1.产品概述         2.产品特点rA2嘉泰姆
3.应用范围       4.下载产品资料PDF文档 rA2嘉泰姆
5.产品封装图                     6.电路原理图             rA2嘉泰姆
7.功能概述       8.相关产品rA2嘉泰姆

一,产品概述(General Description) rA2嘉泰姆
The CXSD62108 is a single-phase, constant-on-time,synchronous PWMrA2嘉泰姆
controller, which drives N-channel MOSFETs. The CXSD62108 steps down highrA2嘉泰姆
voltage to generate low-voltage chipset or RAM supplies in notebook computers.rA2嘉泰姆
The CXSD62108 provides excellent transient response and accurate DCrA2嘉泰姆
voltage output in either PFM or PWM Mode.In Pulse Frequency Mode (PFM),rA2嘉泰姆
the CXSD62108 provides very high efficiency over light to heavy loads with rA2嘉泰姆

loading-modulated switching frequencies. In PWM Mode, the converter worksrA2嘉泰姆

nearly at constant frequency for low-noise requirements.rA2嘉泰姆
The CXSD62108 is equipped with accurate positive current-limit, outputrA2嘉泰姆
under-voltage, and output over-voltage protections, perfect for NB applications.rA2嘉泰姆
The Power-On-Reset function monitors the voltage on VCC and PVCC torA2嘉泰姆
prevent wrong operation during power-on. The CXSD62108 has a 1.2ms digitalrA2嘉泰姆
soft-start and built-in an integrated output discharge device for soft-stop. An rA2嘉泰姆

internal integrated soft-start ramps up the output voltage with programmable rA2嘉泰姆

slew rate to reduce the start-up current. A soft-stop function actively rA2嘉泰姆

discharges the output capacitors.rA2嘉泰姆
The CXSD62108 is available in 14pin TSSOP, 14pin QFN and 16pin TQFNrA2嘉泰姆
packages respectively.rA2嘉泰姆
二.产品特点(Features)rA2嘉泰姆
Adjustable Output Voltage from +0.75V to +5.5VrA2嘉泰姆
- 0.75V Reference VoltagerA2嘉泰姆
- ±1% Accuracy Over-TemperaturerA2嘉泰姆
Operates from An Input Battery Voltage Range ofrA2嘉泰姆
+1.8V to +28VrA2嘉泰姆
Power-On-Reset Monitoring on VCC Pin and PVCC PinrA2嘉泰姆
Excellent Line and Load Transient ResponsesrA2嘉泰姆
PFM Mode for Increased Light Load EfficiencyrA2嘉泰姆
Programmable PWM Frequency from 100kHz to 500kHzrA2嘉泰姆
Integrated MOSFET DriversrA2嘉泰姆
Integrated Bootstrap Forward P-CH MOSFETrA2嘉泰姆
Adjustable Integrated Soft-Start and Soft-StoprA2嘉泰姆
Selectable Forced PWM or Automatic PFM/PWM ModerA2嘉泰姆
Power Good MonitoringrA2嘉泰姆
70% Under-Voltage ProtectionrA2嘉泰姆
125% Over-Voltage ProtectionrA2嘉泰姆
Adjustable Current-Limit ProtectionrA2嘉泰姆
- Using Sense Low-Side MOSFET’s RDS(ON)rA2嘉泰姆
Over-Temperature ProtectionrA2嘉泰姆
TSSOP-14, QFN3.5x3.5-14, and TQFN3x3-16 PackagesrA2嘉泰姆
Lead Free and Green Devices Available (RoHS Compliant)rA2嘉泰姆
三,应用范围 (Applications)rA2嘉泰姆
NotebookrA2嘉泰姆
Table PCrA2嘉泰姆
Hand-Held PortablerA2嘉泰姆
AIO PCrA2嘉泰姆
四.下载产品资料PDF文档 rA2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！rA2嘉泰姆

QQ截图20160419174301.jpg rA2嘉泰姆

五,产品封装图 (Package)rA2嘉泰姆

rA2嘉泰姆

六.电路原理图rA2嘉泰姆

rA2嘉泰姆
七,功能概述rA2嘉泰姆

Layout Consideration (Cont.)rA2嘉泰姆
· The signals going through theses traces have both high dv/dt and high di/dt with high peak charging and dis-rA2嘉泰姆
charging current. The traces from the gate drivers to the MOSFETs (UGATE and LGATE) should be short and wide.rA2嘉泰姆
· Place the source of the high-side MOSFET and the drain of the low-side MOSFET as close as possible. Minimiz-rA2嘉泰姆
ing the impedance with wide layout plane between the two pads reduces the voltage bounce of the node. InrA2嘉泰姆
addition, the large layout plane between the drain of the MOSFETs (VIN and PHASE nodes) can get better heatrA2嘉泰姆
sinking.rA2嘉泰姆
· The PGND is the current sensing circuit reference ground and also the power ground of the LGATE low-rA2嘉泰姆
side MOSFET. On the hand, the PGND trace should be a separate trace and independently go to the source of therA2嘉泰姆
low-side MOSFET. Besides, the current sense resistor should be close to OCSET pin to avoid parasitic capaci-rA2嘉泰姆
tor effect and noise coupling.rA2嘉泰姆
· Decoupling capacitors, the resistor-divider, and boot capacitor should be close to their pins. (For example, placerA2嘉泰姆
the decoupling ceramic capacitor close to the drain of the high-side MOSFET as close as possible.)rA2嘉泰姆
· The input bulk capacitors should be close to the drain of the high-side MOSFET, and the output bulk capacitorsrA2嘉泰姆
should be close to the loads. The input capacitor’s ground should be close to the grounds of the output capacitorsrA2嘉泰姆
and low-side MOSFET.rA2嘉泰姆
· Locate the resistor-divider close to the FB pin to mini-mize the high impedance trace. In addition, FB pin tracesrA2嘉泰姆
can’t be close to the switching signal traces (UGATE, LGATE, BOOT, and PHASE).rA2嘉泰姆
八,相关产品 更多同类产品...... rA2嘉泰姆

Switching Regulator > Buck ControllerrA2嘉泰姆
Part_No rA2嘉泰姆	Package rA2嘉泰姆	ArchirA2嘉泰姆 tecturA2嘉泰姆	PhaserA2嘉泰姆	No.ofrA2嘉泰姆 PWMrA2嘉泰姆 OutputrA2嘉泰姆	Output rA2嘉泰姆 CurrentrA2嘉泰姆 (A) rA2嘉泰姆	InputrA2嘉泰姆 Voltage (V) rA2嘉泰姆		ReferencerA2嘉泰姆 VoltagerA2嘉泰姆 (V) rA2嘉泰姆	Bias rA2嘉泰姆 VoltagerA2嘉泰姆 (V) rA2嘉泰姆	QuiescentrA2嘉泰姆 CurrentrA2嘉泰姆 (uA) rA2嘉泰姆
Part_No rA2嘉泰姆	Package rA2嘉泰姆	ArchirA2嘉泰姆 tecturA2嘉泰姆	PhaserA2嘉泰姆	No.ofrA2嘉泰姆 PWMrA2嘉泰姆 OutputrA2嘉泰姆	Output rA2嘉泰姆 CurrentrA2嘉泰姆 (A) rA2嘉泰姆	minrA2嘉泰姆	maxrA2嘉泰姆	ReferencerA2嘉泰姆 VoltagerA2嘉泰姆 (V) rA2嘉泰姆	Bias rA2嘉泰姆 VoltagerA2嘉泰姆 (V) rA2嘉泰姆	QuiescentrA2嘉泰姆 CurrentrA2嘉泰姆 (uA) rA2嘉泰姆
CXSD6273rA2嘉泰姆	SOP-14rA2嘉泰姆 QSOP-16rA2嘉泰姆 QFN4x4-16rA2嘉泰姆	VM rA2嘉泰姆	1 rA2嘉泰姆	1 rA2嘉泰姆	30rA2嘉泰姆	2.9 rA2嘉泰姆	13.2rA2嘉泰姆	0.9rA2嘉泰姆	12 rA2嘉泰姆	8000rA2嘉泰姆
CXSD6274rA2嘉泰姆	SOP-8rA2嘉泰姆	VM rA2嘉泰姆	1rA2嘉泰姆	1rA2嘉泰姆	20rA2嘉泰姆	2.9 rA2嘉泰姆	13.2 rA2嘉泰姆	0.8rA2嘉泰姆	12rA2嘉泰姆	5000rA2嘉泰姆
CXSD6274CrA2嘉泰姆	SOP-8rA2嘉泰姆	VMrA2嘉泰姆	1rA2嘉泰姆	1rA2嘉泰姆	20rA2嘉泰姆	2.9rA2嘉泰姆	13.2rA2嘉泰姆	0.8rA2嘉泰姆	12rA2嘉泰姆	5000rA2嘉泰姆
CXSD6275rA2嘉泰姆	QFN4x4-24rA2嘉泰姆	VMrA2嘉泰姆	2rA2嘉泰姆	1rA2嘉泰姆	60rA2嘉泰姆	3.1rA2嘉泰姆	13.2rA2嘉泰姆	0.6rA2嘉泰姆	12rA2嘉泰姆	5000rA2嘉泰姆
CXSD6276rA2嘉泰姆	SOP-8rA2嘉泰姆	VMrA2嘉泰姆	1rA2嘉泰姆	1rA2嘉泰姆	20rA2嘉泰姆	2.2rA2嘉泰姆	13.2rA2嘉泰姆	0.8rA2嘉泰姆	5~12rA2嘉泰姆	2100rA2嘉泰姆
CXSD6276ArA2嘉泰姆	SOP-8rA2嘉泰姆	VMrA2嘉泰姆	1rA2嘉泰姆	1rA2嘉泰姆	20rA2嘉泰姆	2.2rA2嘉泰姆	13.2rA2嘉泰姆	0.8rA2嘉泰姆	5~12rA2嘉泰姆	2100rA2嘉泰姆
CXSD6277/A/BrA2嘉泰姆	SOP8\|TSSOP8rA2嘉泰姆	VMrA2嘉泰姆	1rA2嘉泰姆	1rA2嘉泰姆	5rA2嘉泰姆	5rA2嘉泰姆	13.2rA2嘉泰姆	1.25\|0.8rA2嘉泰姆	5~12rA2嘉泰姆	3000rA2嘉泰姆
CXSD6278rA2嘉泰姆	SOP-8rA2嘉泰姆	VMrA2嘉泰姆	1rA2嘉泰姆	1rA2嘉泰姆	10rA2嘉泰姆	3.3rA2嘉泰姆	5.5rA2嘉泰姆	0.8rA2嘉泰姆	5rA2嘉泰姆	2100rA2嘉泰姆
CXSD6279BrA2嘉泰姆	SOP-14rA2嘉泰姆	VM rA2嘉泰姆	1rA2嘉泰姆	1rA2嘉泰姆	10rA2嘉泰姆	5rA2嘉泰姆	13.2rA2嘉泰姆	0.8rA2嘉泰姆	12rA2嘉泰姆	2000rA2嘉泰姆
CXSD6280rA2嘉泰姆	TSSOP-24rA2嘉泰姆 \|QFN5x5-32rA2嘉泰姆	VMrA2嘉泰姆	1rA2嘉泰姆	2rA2嘉泰姆	20rA2嘉泰姆	5rA2嘉泰姆	13.2rA2嘉泰姆	0.6rA2嘉泰姆	5~12rA2嘉泰姆	4000rA2嘉泰姆
CXSD6281NrA2嘉泰姆	SOP14rA2嘉泰姆 QSOP16rA2嘉泰姆 QFN-16rA2嘉泰姆	VMrA2嘉泰姆	1rA2嘉泰姆	1rA2嘉泰姆	30rA2嘉泰姆	2.9rA2嘉泰姆	13.2rA2嘉泰姆	0.9rA2嘉泰姆	12rA2嘉泰姆	4000rA2嘉泰姆
CXSD6282rA2嘉泰姆	SOP-14rA2嘉泰姆	VMrA2嘉泰姆	1rA2嘉泰姆	1rA2嘉泰姆	30rA2嘉泰姆	2.2rA2嘉泰姆	13.2rA2嘉泰姆	0.6rA2嘉泰姆	12rA2嘉泰姆	5000rA2嘉泰姆
CXSD6282ArA2嘉泰姆	SOP-14rA2嘉泰姆	VMrA2嘉泰姆	1rA2嘉泰姆	1rA2嘉泰姆	30rA2嘉泰姆	2.2rA2嘉泰姆	13.2rA2嘉泰姆	0.6rA2嘉泰姆	12rA2嘉泰姆	5000rA2嘉泰姆
CXSD6283rA2嘉泰姆	SOP-14rA2嘉泰姆	VMrA2嘉泰姆	1rA2嘉泰姆	1rA2嘉泰姆	25rA2嘉泰姆	2.2rA2嘉泰姆	13.2rA2嘉泰姆	0.8rA2嘉泰姆	12rA2嘉泰姆	5000rA2嘉泰姆
CXSD6284/ArA2嘉泰姆	LQFP7x7 48rA2嘉泰姆 TQFN7x7-48rA2嘉泰姆	VMrA2嘉泰姆	1rA2嘉泰姆	6rA2嘉泰姆	0.015rA2嘉泰姆	1.4rA2嘉泰姆	6.5rA2嘉泰姆	-rA2嘉泰姆	5rA2嘉泰姆	1800rA2嘉泰姆
CXSD6285rA2嘉泰姆	TSSOP-24PrA2嘉泰姆	VMrA2嘉泰姆	1rA2嘉泰姆	2rA2嘉泰姆	20rA2嘉泰姆	2.97rA2嘉泰姆	5.5rA2嘉泰姆	0.8rA2嘉泰姆	5~12rA2嘉泰姆	5000rA2嘉泰姆
CXSD6286rA2嘉泰姆	SOP-14rA2嘉泰姆	VMrA2嘉泰姆	1rA2嘉泰姆	1rA2嘉泰姆	10rA2嘉泰姆	5rA2嘉泰姆	13.2rA2嘉泰姆	0.8rA2嘉泰姆	12rA2嘉泰姆	3000rA2嘉泰姆
CXSD6287rA2嘉泰姆	SOP-8-P\|DIP-8rA2嘉泰姆	VMrA2嘉泰姆	1rA2嘉泰姆	1rA2嘉泰姆	30rA2嘉泰姆	2.9rA2嘉泰姆	13.2rA2嘉泰姆	1.2rA2嘉泰姆	12rA2嘉泰姆	3000rA2嘉泰姆
CXSD6288rA2嘉泰姆	SSOP28rA2嘉泰姆 QFN4x4-24rA2嘉泰姆	VMrA2嘉泰姆	1rA2嘉泰姆	2rA2嘉泰姆	20rA2嘉泰姆	5rA2嘉泰姆	24rA2嘉泰姆	0.9rA2嘉泰姆	5rA2嘉泰姆	1200rA2嘉泰姆
CXSD6289rA2嘉泰姆	SOP-20rA2嘉泰姆	VMrA2嘉泰姆	1rA2嘉泰姆	2rA2嘉泰姆	20rA2嘉泰姆	2.2rA2嘉泰姆	13.2rA2嘉泰姆	0.6rA2嘉泰姆	5~12rA2嘉泰姆	4000rA2嘉泰姆
CXSD629rA2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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