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：76

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aEc嘉泰姆

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

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

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

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

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

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

discharges the output capacitors.aEc嘉泰姆
The CXSD62108 is available in 14pin TSSOP, 14pin QFN and 16pin TQFNaEc嘉泰姆
packages respectively.aEc嘉泰姆
二.产品特点(Features)aEc嘉泰姆
Adjustable Output Voltage from +0.75V to +5.5VaEc嘉泰姆
- 0.75V Reference VoltageaEc嘉泰姆
- ±1% Accuracy Over-TemperatureaEc嘉泰姆
Operates from An Input Battery Voltage Range ofaEc嘉泰姆
+1.8V to +28VaEc嘉泰姆
Power-On-Reset Monitoring on VCC Pin and PVCC PinaEc嘉泰姆
Excellent Line and Load Transient ResponsesaEc嘉泰姆
PFM Mode for Increased Light Load EfficiencyaEc嘉泰姆
Programmable PWM Frequency from 100kHz to 500kHzaEc嘉泰姆
Integrated MOSFET DriversaEc嘉泰姆
Integrated Bootstrap Forward P-CH MOSFETaEc嘉泰姆
Adjustable Integrated Soft-Start and Soft-StopaEc嘉泰姆
Selectable Forced PWM or Automatic PFM/PWM ModeaEc嘉泰姆
Power Good MonitoringaEc嘉泰姆
70% Under-Voltage ProtectionaEc嘉泰姆
125% Over-Voltage ProtectionaEc嘉泰姆
Adjustable Current-Limit ProtectionaEc嘉泰姆
- Using Sense Low-Side MOSFET’s RDS(ON)aEc嘉泰姆
Over-Temperature ProtectionaEc嘉泰姆
TSSOP-14, QFN3.5x3.5-14, and TQFN3x3-16 PackagesaEc嘉泰姆
Lead Free and Green Devices Available (RoHS Compliant)aEc嘉泰姆
三,应用范围 (Applications)aEc嘉泰姆
NotebookaEc嘉泰姆
Table PCaEc嘉泰姆
Hand-Held PortableaEc嘉泰姆
AIO PCaEc嘉泰姆
四.下载产品资料PDF文档 aEc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！aEc嘉泰姆

QQ截图20160419174301.jpg aEc嘉泰姆

五,产品封装图 (Package)aEc嘉泰姆

aEc嘉泰姆

六.电路原理图aEc嘉泰姆

aEc嘉泰姆
七,功能概述aEc嘉泰姆

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

Switching Regulator > Buck ControlleraEc嘉泰姆
Part_No aEc嘉泰姆	Package aEc嘉泰姆	ArchiaEc嘉泰姆 tectuaEc嘉泰姆	PhaseaEc嘉泰姆	No.ofaEc嘉泰姆 PWMaEc嘉泰姆 OutputaEc嘉泰姆	Output aEc嘉泰姆 CurrentaEc嘉泰姆 (A) aEc嘉泰姆	InputaEc嘉泰姆 Voltage (V) aEc嘉泰姆		ReferenceaEc嘉泰姆 VoltageaEc嘉泰姆 (V) aEc嘉泰姆	Bias aEc嘉泰姆 VoltageaEc嘉泰姆 (V) aEc嘉泰姆	QuiescentaEc嘉泰姆 CurrentaEc嘉泰姆 (uA) aEc嘉泰姆
Part_No aEc嘉泰姆	Package aEc嘉泰姆	ArchiaEc嘉泰姆 tectuaEc嘉泰姆	PhaseaEc嘉泰姆	No.ofaEc嘉泰姆 PWMaEc嘉泰姆 OutputaEc嘉泰姆	Output aEc嘉泰姆 CurrentaEc嘉泰姆 (A) aEc嘉泰姆	minaEc嘉泰姆	maxaEc嘉泰姆	ReferenceaEc嘉泰姆 VoltageaEc嘉泰姆 (V) aEc嘉泰姆	Bias aEc嘉泰姆 VoltageaEc嘉泰姆 (V) aEc嘉泰姆	QuiescentaEc嘉泰姆 CurrentaEc嘉泰姆 (uA) aEc嘉泰姆
CXSD6273aEc嘉泰姆	SOP-14aEc嘉泰姆 QSOP-16aEc嘉泰姆 QFN4x4-16aEc嘉泰姆	VM aEc嘉泰姆	1 aEc嘉泰姆	1 aEc嘉泰姆	30aEc嘉泰姆	2.9 aEc嘉泰姆	13.2aEc嘉泰姆	0.9aEc嘉泰姆	12 aEc嘉泰姆	8000aEc嘉泰姆
CXSD6274aEc嘉泰姆	SOP-8aEc嘉泰姆	VM aEc嘉泰姆	1aEc嘉泰姆	1aEc嘉泰姆	20aEc嘉泰姆	2.9 aEc嘉泰姆	13.2 aEc嘉泰姆	0.8aEc嘉泰姆	12aEc嘉泰姆	5000aEc嘉泰姆
CXSD6274CaEc嘉泰姆	SOP-8aEc嘉泰姆	VMaEc嘉泰姆	1aEc嘉泰姆	1aEc嘉泰姆	20aEc嘉泰姆	2.9aEc嘉泰姆	13.2aEc嘉泰姆	0.8aEc嘉泰姆	12aEc嘉泰姆	5000aEc嘉泰姆
CXSD6275aEc嘉泰姆	QFN4x4-24aEc嘉泰姆	VMaEc嘉泰姆	2aEc嘉泰姆	1aEc嘉泰姆	60aEc嘉泰姆	3.1aEc嘉泰姆	13.2aEc嘉泰姆	0.6aEc嘉泰姆	12aEc嘉泰姆	5000aEc嘉泰姆
CXSD6276aEc嘉泰姆	SOP-8aEc嘉泰姆	VMaEc嘉泰姆	1aEc嘉泰姆	1aEc嘉泰姆	20aEc嘉泰姆	2.2aEc嘉泰姆	13.2aEc嘉泰姆	0.8aEc嘉泰姆	5~12aEc嘉泰姆	2100aEc嘉泰姆
CXSD6276AaEc嘉泰姆	SOP-8aEc嘉泰姆	VMaEc嘉泰姆	1aEc嘉泰姆	1aEc嘉泰姆	20aEc嘉泰姆	2.2aEc嘉泰姆	13.2aEc嘉泰姆	0.8aEc嘉泰姆	5~12aEc嘉泰姆	2100aEc嘉泰姆
CXSD6277/A/BaEc嘉泰姆	SOP8\|TSSOP8aEc嘉泰姆	VMaEc嘉泰姆	1aEc嘉泰姆	1aEc嘉泰姆	5aEc嘉泰姆	5aEc嘉泰姆	13.2aEc嘉泰姆	1.25\|0.8aEc嘉泰姆	5~12aEc嘉泰姆	3000aEc嘉泰姆
CXSD6278aEc嘉泰姆	SOP-8aEc嘉泰姆	VMaEc嘉泰姆	1aEc嘉泰姆	1aEc嘉泰姆	10aEc嘉泰姆	3.3aEc嘉泰姆	5.5aEc嘉泰姆	0.8aEc嘉泰姆	5aEc嘉泰姆	2100aEc嘉泰姆
CXSD6279BaEc嘉泰姆	SOP-14aEc嘉泰姆	VM aEc嘉泰姆	1aEc嘉泰姆	1aEc嘉泰姆	10aEc嘉泰姆	5aEc嘉泰姆	13.2aEc嘉泰姆	0.8aEc嘉泰姆	12aEc嘉泰姆	2000aEc嘉泰姆
CXSD6280aEc嘉泰姆	TSSOP-24aEc嘉泰姆 \|QFN5x5-32aEc嘉泰姆	VMaEc嘉泰姆	1aEc嘉泰姆	2aEc嘉泰姆	20aEc嘉泰姆	5aEc嘉泰姆	13.2aEc嘉泰姆	0.6aEc嘉泰姆	5~12aEc嘉泰姆	4000aEc嘉泰姆
CXSD6281NaEc嘉泰姆	SOP14aEc嘉泰姆 QSOP16aEc嘉泰姆 QFN-16aEc嘉泰姆	VMaEc嘉泰姆	1aEc嘉泰姆	1aEc嘉泰姆	30aEc嘉泰姆	2.9aEc嘉泰姆	13.2aEc嘉泰姆	0.9aEc嘉泰姆	12aEc嘉泰姆	4000aEc嘉泰姆
CXSD6282aEc嘉泰姆	SOP-14aEc嘉泰姆	VMaEc嘉泰姆	1aEc嘉泰姆	1aEc嘉泰姆	30aEc嘉泰姆	2.2aEc嘉泰姆	13.2aEc嘉泰姆	0.6aEc嘉泰姆	12aEc嘉泰姆	5000aEc嘉泰姆
CXSD6282AaEc嘉泰姆	SOP-14aEc嘉泰姆	VMaEc嘉泰姆	1aEc嘉泰姆	1aEc嘉泰姆	30aEc嘉泰姆	2.2aEc嘉泰姆	13.2aEc嘉泰姆	0.6aEc嘉泰姆	12aEc嘉泰姆	5000aEc嘉泰姆
CXSD6283aEc嘉泰姆	SOP-14aEc嘉泰姆	VMaEc嘉泰姆	1aEc嘉泰姆	1aEc嘉泰姆	25aEc嘉泰姆	2.2aEc嘉泰姆	13.2aEc嘉泰姆	0.8aEc嘉泰姆	12aEc嘉泰姆	5000aEc嘉泰姆
CXSD6284/AaEc嘉泰姆	LQFP7x7 48aEc嘉泰姆 TQFN7x7-48aEc嘉泰姆	VMaEc嘉泰姆	1aEc嘉泰姆	6aEc嘉泰姆	0.015aEc嘉泰姆	1.4aEc嘉泰姆	6.5aEc嘉泰姆	-aEc嘉泰姆	5aEc嘉泰姆	1800aEc嘉泰姆
CXSD6285aEc嘉泰姆	TSSOP-24PaEc嘉泰姆	VMaEc嘉泰姆	1aEc嘉泰姆	2aEc嘉泰姆	20aEc嘉泰姆	2.97aEc嘉泰姆	5.5aEc嘉泰姆	0.8aEc嘉泰姆	5~12aEc嘉泰姆	5000aEc嘉泰姆
CXSD6286aEc嘉泰姆	SOP-14aEc嘉泰姆	VMaEc嘉泰姆	1aEc嘉泰姆	1aEc嘉泰姆	10aEc嘉泰姆	5aEc嘉泰姆	13.2aEc嘉泰姆	0.8aEc嘉泰姆	12aEc嘉泰姆	3000aEc嘉泰姆
CXSD6287aEc嘉泰姆	SOP-8-P\|DIP-8aEc嘉泰姆	VMaEc嘉泰姆	1aEc嘉泰姆	1aEc嘉泰姆	30aEc嘉泰姆	2.9aEc嘉泰姆	13.2aEc嘉泰姆	1.2aEc嘉泰姆	12aEc嘉泰姆	3000aEc嘉泰姆
CXSD6288aEc嘉泰姆	SSOP28aEc嘉泰姆 QFN4x4-24aEc嘉泰姆	VMaEc嘉泰姆	1aEc嘉泰姆	2aEc嘉泰姆	20aEc嘉泰姆	5aEc嘉泰姆	24aEc嘉泰姆	0.9aEc嘉泰姆	5aEc嘉泰姆	1200aEc嘉泰姆
CXSD6289aEc嘉泰姆	SOP-20aEc嘉泰姆	VMaEc嘉泰姆	1aEc嘉泰姆	2aEc嘉泰姆	20aEc嘉泰姆	2.2aEc嘉泰姆	13.2aEc嘉泰姆	0.6aEc嘉泰姆	5~12aEc嘉泰姆	4000aEc嘉泰姆
CXSD629aEc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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