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：177

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vnK嘉泰姆

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

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

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

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

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

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

discharges the output capacitors.vnK嘉泰姆
The CXSD62108 is available in 14pin TSSOP, 14pin QFN and 16pin TQFNvnK嘉泰姆
packages respectively.vnK嘉泰姆
二.产品特点(Features)vnK嘉泰姆
Adjustable Output Voltage from +0.75V to +5.5VvnK嘉泰姆
- 0.75V Reference VoltagevnK嘉泰姆
- ±1% Accuracy Over-TemperaturevnK嘉泰姆
Operates from An Input Battery Voltage Range ofvnK嘉泰姆
+1.8V to +28VvnK嘉泰姆
Power-On-Reset Monitoring on VCC Pin and PVCC PinvnK嘉泰姆
Excellent Line and Load Transient ResponsesvnK嘉泰姆
PFM Mode for Increased Light Load EfficiencyvnK嘉泰姆
Programmable PWM Frequency from 100kHz to 500kHzvnK嘉泰姆
Integrated MOSFET DriversvnK嘉泰姆
Integrated Bootstrap Forward P-CH MOSFETvnK嘉泰姆
Adjustable Integrated Soft-Start and Soft-StopvnK嘉泰姆
Selectable Forced PWM or Automatic PFM/PWM ModevnK嘉泰姆
Power Good MonitoringvnK嘉泰姆
70% Under-Voltage ProtectionvnK嘉泰姆
125% Over-Voltage ProtectionvnK嘉泰姆
Adjustable Current-Limit ProtectionvnK嘉泰姆
- Using Sense Low-Side MOSFET’s RDS(ON)vnK嘉泰姆
Over-Temperature ProtectionvnK嘉泰姆
TSSOP-14, QFN3.5x3.5-14, and TQFN3x3-16 PackagesvnK嘉泰姆
Lead Free and Green Devices Available (RoHS Compliant)vnK嘉泰姆
三,应用范围 (Applications)vnK嘉泰姆
NotebookvnK嘉泰姆
Table PCvnK嘉泰姆
Hand-Held PortablevnK嘉泰姆
AIO PCvnK嘉泰姆
四.下载产品资料PDF文档 vnK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！vnK嘉泰姆

QQ截图20160419174301.jpg vnK嘉泰姆

五,产品封装图 (Package)vnK嘉泰姆

vnK嘉泰姆

六.电路原理图vnK嘉泰姆

vnK嘉泰姆
七,功能概述vnK嘉泰姆

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

Switching Regulator > Buck ControllervnK嘉泰姆
Part_No vnK嘉泰姆	Package vnK嘉泰姆	ArchivnK嘉泰姆 tectuvnK嘉泰姆	PhasevnK嘉泰姆	No.ofvnK嘉泰姆 PWMvnK嘉泰姆 OutputvnK嘉泰姆	Output vnK嘉泰姆 CurrentvnK嘉泰姆 (A) vnK嘉泰姆	InputvnK嘉泰姆 Voltage (V) vnK嘉泰姆		ReferencevnK嘉泰姆 VoltagevnK嘉泰姆 (V) vnK嘉泰姆	Bias vnK嘉泰姆 VoltagevnK嘉泰姆 (V) vnK嘉泰姆	QuiescentvnK嘉泰姆 CurrentvnK嘉泰姆 (uA) vnK嘉泰姆
Part_No vnK嘉泰姆	Package vnK嘉泰姆	ArchivnK嘉泰姆 tectuvnK嘉泰姆	PhasevnK嘉泰姆	No.ofvnK嘉泰姆 PWMvnK嘉泰姆 OutputvnK嘉泰姆	Output vnK嘉泰姆 CurrentvnK嘉泰姆 (A) vnK嘉泰姆	minvnK嘉泰姆	maxvnK嘉泰姆	ReferencevnK嘉泰姆 VoltagevnK嘉泰姆 (V) vnK嘉泰姆	Bias vnK嘉泰姆 VoltagevnK嘉泰姆 (V) vnK嘉泰姆	QuiescentvnK嘉泰姆 CurrentvnK嘉泰姆 (uA) vnK嘉泰姆
CXSD6273vnK嘉泰姆	SOP-14vnK嘉泰姆 QSOP-16vnK嘉泰姆 QFN4x4-16vnK嘉泰姆	VM vnK嘉泰姆	1 vnK嘉泰姆	1 vnK嘉泰姆	30vnK嘉泰姆	2.9 vnK嘉泰姆	13.2vnK嘉泰姆	0.9vnK嘉泰姆	12 vnK嘉泰姆	8000vnK嘉泰姆
CXSD6274vnK嘉泰姆	SOP-8vnK嘉泰姆	VM vnK嘉泰姆	1vnK嘉泰姆	1vnK嘉泰姆	20vnK嘉泰姆	2.9 vnK嘉泰姆	13.2 vnK嘉泰姆	0.8vnK嘉泰姆	12vnK嘉泰姆	5000vnK嘉泰姆
CXSD6274CvnK嘉泰姆	SOP-8vnK嘉泰姆	VMvnK嘉泰姆	1vnK嘉泰姆	1vnK嘉泰姆	20vnK嘉泰姆	2.9vnK嘉泰姆	13.2vnK嘉泰姆	0.8vnK嘉泰姆	12vnK嘉泰姆	5000vnK嘉泰姆
CXSD6275vnK嘉泰姆	QFN4x4-24vnK嘉泰姆	VMvnK嘉泰姆	2vnK嘉泰姆	1vnK嘉泰姆	60vnK嘉泰姆	3.1vnK嘉泰姆	13.2vnK嘉泰姆	0.6vnK嘉泰姆	12vnK嘉泰姆	5000vnK嘉泰姆
CXSD6276vnK嘉泰姆	SOP-8vnK嘉泰姆	VMvnK嘉泰姆	1vnK嘉泰姆	1vnK嘉泰姆	20vnK嘉泰姆	2.2vnK嘉泰姆	13.2vnK嘉泰姆	0.8vnK嘉泰姆	5~12vnK嘉泰姆	2100vnK嘉泰姆
CXSD6276AvnK嘉泰姆	SOP-8vnK嘉泰姆	VMvnK嘉泰姆	1vnK嘉泰姆	1vnK嘉泰姆	20vnK嘉泰姆	2.2vnK嘉泰姆	13.2vnK嘉泰姆	0.8vnK嘉泰姆	5~12vnK嘉泰姆	2100vnK嘉泰姆
CXSD6277/A/BvnK嘉泰姆	SOP8\|TSSOP8vnK嘉泰姆	VMvnK嘉泰姆	1vnK嘉泰姆	1vnK嘉泰姆	5vnK嘉泰姆	5vnK嘉泰姆	13.2vnK嘉泰姆	1.25\|0.8vnK嘉泰姆	5~12vnK嘉泰姆	3000vnK嘉泰姆
CXSD6278vnK嘉泰姆	SOP-8vnK嘉泰姆	VMvnK嘉泰姆	1vnK嘉泰姆	1vnK嘉泰姆	10vnK嘉泰姆	3.3vnK嘉泰姆	5.5vnK嘉泰姆	0.8vnK嘉泰姆	5vnK嘉泰姆	2100vnK嘉泰姆
CXSD6279BvnK嘉泰姆	SOP-14vnK嘉泰姆	VM vnK嘉泰姆	1vnK嘉泰姆	1vnK嘉泰姆	10vnK嘉泰姆	5vnK嘉泰姆	13.2vnK嘉泰姆	0.8vnK嘉泰姆	12vnK嘉泰姆	2000vnK嘉泰姆
CXSD6280vnK嘉泰姆	TSSOP-24vnK嘉泰姆 \|QFN5x5-32vnK嘉泰姆	VMvnK嘉泰姆	1vnK嘉泰姆	2vnK嘉泰姆	20vnK嘉泰姆	5vnK嘉泰姆	13.2vnK嘉泰姆	0.6vnK嘉泰姆	5~12vnK嘉泰姆	4000vnK嘉泰姆
CXSD6281NvnK嘉泰姆	SOP14vnK嘉泰姆 QSOP16vnK嘉泰姆 QFN-16vnK嘉泰姆	VMvnK嘉泰姆	1vnK嘉泰姆	1vnK嘉泰姆	30vnK嘉泰姆	2.9vnK嘉泰姆	13.2vnK嘉泰姆	0.9vnK嘉泰姆	12vnK嘉泰姆	4000vnK嘉泰姆
CXSD6282vnK嘉泰姆	SOP-14vnK嘉泰姆	VMvnK嘉泰姆	1vnK嘉泰姆	1vnK嘉泰姆	30vnK嘉泰姆	2.2vnK嘉泰姆	13.2vnK嘉泰姆	0.6vnK嘉泰姆	12vnK嘉泰姆	5000vnK嘉泰姆
CXSD6282AvnK嘉泰姆	SOP-14vnK嘉泰姆	VMvnK嘉泰姆	1vnK嘉泰姆	1vnK嘉泰姆	30vnK嘉泰姆	2.2vnK嘉泰姆	13.2vnK嘉泰姆	0.6vnK嘉泰姆	12vnK嘉泰姆	5000vnK嘉泰姆
CXSD6283vnK嘉泰姆	SOP-14vnK嘉泰姆	VMvnK嘉泰姆	1vnK嘉泰姆	1vnK嘉泰姆	25vnK嘉泰姆	2.2vnK嘉泰姆	13.2vnK嘉泰姆	0.8vnK嘉泰姆	12vnK嘉泰姆	5000vnK嘉泰姆
CXSD6284/AvnK嘉泰姆	LQFP7x7 48vnK嘉泰姆 TQFN7x7-48vnK嘉泰姆	VMvnK嘉泰姆	1vnK嘉泰姆	6vnK嘉泰姆	0.015vnK嘉泰姆	1.4vnK嘉泰姆	6.5vnK嘉泰姆	-vnK嘉泰姆	5vnK嘉泰姆	1800vnK嘉泰姆
CXSD6285vnK嘉泰姆	TSSOP-24PvnK嘉泰姆	VMvnK嘉泰姆	1vnK嘉泰姆	2vnK嘉泰姆	20vnK嘉泰姆	2.97vnK嘉泰姆	5.5vnK嘉泰姆	0.8vnK嘉泰姆	5~12vnK嘉泰姆	5000vnK嘉泰姆
CXSD6286vnK嘉泰姆	SOP-14vnK嘉泰姆	VMvnK嘉泰姆	1vnK嘉泰姆	1vnK嘉泰姆	10vnK嘉泰姆	5vnK嘉泰姆	13.2vnK嘉泰姆	0.8vnK嘉泰姆	12vnK嘉泰姆	3000vnK嘉泰姆
CXSD6287vnK嘉泰姆	SOP-8-P\|DIP-8vnK嘉泰姆	VMvnK嘉泰姆	1vnK嘉泰姆	1vnK嘉泰姆	30vnK嘉泰姆	2.9vnK嘉泰姆	13.2vnK嘉泰姆	1.2vnK嘉泰姆	12vnK嘉泰姆	3000vnK嘉泰姆
CXSD6288vnK嘉泰姆	SSOP28vnK嘉泰姆 QFN4x4-24vnK嘉泰姆	VMvnK嘉泰姆	1vnK嘉泰姆	2vnK嘉泰姆	20vnK嘉泰姆	5vnK嘉泰姆	24vnK嘉泰姆	0.9vnK嘉泰姆	5vnK嘉泰姆	1200vnK嘉泰姆
CXSD6289vnK嘉泰姆	SOP-20vnK嘉泰姆	VMvnK嘉泰姆	1vnK嘉泰姆	2vnK嘉泰姆	20vnK嘉泰姆	2.2vnK嘉泰姆	13.2vnK嘉泰姆	0.6vnK嘉泰姆	5~12vnK嘉泰姆	4000vnK嘉泰姆
CXSD629vnK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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