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：176

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d7K嘉泰姆

1.产品概述         2.产品特点d7K嘉泰姆
3.应用范围       4.下载产品资料PDF文档 d7K嘉泰姆
5.产品封装图                     6.电路原理图             d7K嘉泰姆
7.功能概述       8.相关产品d7K嘉泰姆

一,产品概述(General Description) d7K嘉泰姆
The CXSD62108 is a single-phase, constant-on-time,synchronous PWMd7K嘉泰姆
controller, which drives N-channel MOSFETs. The CXSD62108 steps down highd7K嘉泰姆
voltage to generate low-voltage chipset or RAM supplies in notebook computers.d7K嘉泰姆
The CXSD62108 provides excellent transient response and accurate DCd7K嘉泰姆
voltage output in either PFM or PWM Mode.In Pulse Frequency Mode (PFM),d7K嘉泰姆
the CXSD62108 provides very high efficiency over light to heavy loads with d7K嘉泰姆

loading-modulated switching frequencies. In PWM Mode, the converter worksd7K嘉泰姆

nearly at constant frequency for low-noise requirements.d7K嘉泰姆
The CXSD62108 is equipped with accurate positive current-limit, outputd7K嘉泰姆
under-voltage, and output over-voltage protections, perfect for NB applications.d7K嘉泰姆
The Power-On-Reset function monitors the voltage on VCC and PVCC tod7K嘉泰姆
prevent wrong operation during power-on. The CXSD62108 has a 1.2ms digitald7K嘉泰姆
soft-start and built-in an integrated output discharge device for soft-stop. An d7K嘉泰姆

internal integrated soft-start ramps up the output voltage with programmable d7K嘉泰姆

slew rate to reduce the start-up current. A soft-stop function actively d7K嘉泰姆

discharges the output capacitors.d7K嘉泰姆
The CXSD62108 is available in 14pin TSSOP, 14pin QFN and 16pin TQFNd7K嘉泰姆
packages respectively.d7K嘉泰姆
二.产品特点(Features)d7K嘉泰姆
Adjustable Output Voltage from +0.75V to +5.5Vd7K嘉泰姆
- 0.75V Reference Voltaged7K嘉泰姆
- ±1% Accuracy Over-Temperatured7K嘉泰姆
Operates from An Input Battery Voltage Range ofd7K嘉泰姆
+1.8V to +28Vd7K嘉泰姆
Power-On-Reset Monitoring on VCC Pin and PVCC Pind7K嘉泰姆
Excellent Line and Load Transient Responsesd7K嘉泰姆
PFM Mode for Increased Light Load Efficiencyd7K嘉泰姆
Programmable PWM Frequency from 100kHz to 500kHzd7K嘉泰姆
Integrated MOSFET Driversd7K嘉泰姆
Integrated Bootstrap Forward P-CH MOSFETd7K嘉泰姆
Adjustable Integrated Soft-Start and Soft-Stopd7K嘉泰姆
Selectable Forced PWM or Automatic PFM/PWM Moded7K嘉泰姆
Power Good Monitoringd7K嘉泰姆
70% Under-Voltage Protectiond7K嘉泰姆
125% Over-Voltage Protectiond7K嘉泰姆
Adjustable Current-Limit Protectiond7K嘉泰姆
- Using Sense Low-Side MOSFET’s RDS(ON)d7K嘉泰姆
Over-Temperature Protectiond7K嘉泰姆
TSSOP-14, QFN3.5x3.5-14, and TQFN3x3-16 Packagesd7K嘉泰姆
Lead Free and Green Devices Available (RoHS Compliant)d7K嘉泰姆
三,应用范围 (Applications)d7K嘉泰姆
Notebookd7K嘉泰姆
Table PCd7K嘉泰姆
Hand-Held Portabled7K嘉泰姆
AIO PCd7K嘉泰姆
四.下载产品资料PDF文档 d7K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！d7K嘉泰姆

QQ截图20160419174301.jpg d7K嘉泰姆

五,产品封装图 (Package)d7K嘉泰姆

d7K嘉泰姆

六.电路原理图d7K嘉泰姆

d7K嘉泰姆
七,功能概述d7K嘉泰姆

Layout Consideration (Cont.)d7K嘉泰姆
· The signals going through theses traces have both high dv/dt and high di/dt with high peak charging and dis-d7K嘉泰姆
charging current. The traces from the gate drivers to the MOSFETs (UGATE and LGATE) should be short and wide.d7K嘉泰姆
· Place the source of the high-side MOSFET and the drain of the low-side MOSFET as close as possible. Minimiz-d7K嘉泰姆
ing the impedance with wide layout plane between the two pads reduces the voltage bounce of the node. Ind7K嘉泰姆
addition, the large layout plane between the drain of the MOSFETs (VIN and PHASE nodes) can get better heatd7K嘉泰姆
sinking.d7K嘉泰姆
· The PGND is the current sensing circuit reference ground and also the power ground of the LGATE low-d7K嘉泰姆
side MOSFET. On the hand, the PGND trace should be a separate trace and independently go to the source of thed7K嘉泰姆
low-side MOSFET. Besides, the current sense resistor should be close to OCSET pin to avoid parasitic capaci-d7K嘉泰姆
tor effect and noise coupling.d7K嘉泰姆
· Decoupling capacitors, the resistor-divider, and boot capacitor should be close to their pins. (For example, placed7K嘉泰姆
the decoupling ceramic capacitor close to the drain of the high-side MOSFET as close as possible.)d7K嘉泰姆
· The input bulk capacitors should be close to the drain of the high-side MOSFET, and the output bulk capacitorsd7K嘉泰姆
should be close to the loads. The input capacitor’s ground should be close to the grounds of the output capacitorsd7K嘉泰姆
and low-side MOSFET.d7K嘉泰姆
· Locate the resistor-divider close to the FB pin to mini-mize the high impedance trace. In addition, FB pin tracesd7K嘉泰姆
can’t be close to the switching signal traces (UGATE, LGATE, BOOT, and PHASE).d7K嘉泰姆
八,相关产品 更多同类产品...... d7K嘉泰姆

Switching Regulator > Buck Controllerd7K嘉泰姆
Part_No d7K嘉泰姆	Package d7K嘉泰姆	Archid7K嘉泰姆 tectud7K嘉泰姆	Phased7K嘉泰姆	No.ofd7K嘉泰姆 PWMd7K嘉泰姆 Outputd7K嘉泰姆	Output d7K嘉泰姆 Currentd7K嘉泰姆 (A) d7K嘉泰姆	Inputd7K嘉泰姆 Voltage (V) d7K嘉泰姆		Referenced7K嘉泰姆 Voltaged7K嘉泰姆 (V) d7K嘉泰姆	Bias d7K嘉泰姆 Voltaged7K嘉泰姆 (V) d7K嘉泰姆	Quiescentd7K嘉泰姆 Currentd7K嘉泰姆 (uA) d7K嘉泰姆
Part_No d7K嘉泰姆	Package d7K嘉泰姆	Archid7K嘉泰姆 tectud7K嘉泰姆	Phased7K嘉泰姆	No.ofd7K嘉泰姆 PWMd7K嘉泰姆 Outputd7K嘉泰姆	Output d7K嘉泰姆 Currentd7K嘉泰姆 (A) d7K嘉泰姆	mind7K嘉泰姆	maxd7K嘉泰姆	Referenced7K嘉泰姆 Voltaged7K嘉泰姆 (V) d7K嘉泰姆	Bias d7K嘉泰姆 Voltaged7K嘉泰姆 (V) d7K嘉泰姆	Quiescentd7K嘉泰姆 Currentd7K嘉泰姆 (uA) d7K嘉泰姆
CXSD6273d7K嘉泰姆	SOP-14d7K嘉泰姆 QSOP-16d7K嘉泰姆 QFN4x4-16d7K嘉泰姆	VM d7K嘉泰姆	1 d7K嘉泰姆	1 d7K嘉泰姆	30d7K嘉泰姆	2.9 d7K嘉泰姆	13.2d7K嘉泰姆	0.9d7K嘉泰姆	12 d7K嘉泰姆	8000d7K嘉泰姆
CXSD6274d7K嘉泰姆	SOP-8d7K嘉泰姆	VM d7K嘉泰姆	1d7K嘉泰姆	1d7K嘉泰姆	20d7K嘉泰姆	2.9 d7K嘉泰姆	13.2 d7K嘉泰姆	0.8d7K嘉泰姆	12d7K嘉泰姆	5000d7K嘉泰姆
CXSD6274Cd7K嘉泰姆	SOP-8d7K嘉泰姆	VMd7K嘉泰姆	1d7K嘉泰姆	1d7K嘉泰姆	20d7K嘉泰姆	2.9d7K嘉泰姆	13.2d7K嘉泰姆	0.8d7K嘉泰姆	12d7K嘉泰姆	5000d7K嘉泰姆
CXSD6275d7K嘉泰姆	QFN4x4-24d7K嘉泰姆	VMd7K嘉泰姆	2d7K嘉泰姆	1d7K嘉泰姆	60d7K嘉泰姆	3.1d7K嘉泰姆	13.2d7K嘉泰姆	0.6d7K嘉泰姆	12d7K嘉泰姆	5000d7K嘉泰姆
CXSD6276d7K嘉泰姆	SOP-8d7K嘉泰姆	VMd7K嘉泰姆	1d7K嘉泰姆	1d7K嘉泰姆	20d7K嘉泰姆	2.2d7K嘉泰姆	13.2d7K嘉泰姆	0.8d7K嘉泰姆	5~12d7K嘉泰姆	2100d7K嘉泰姆
CXSD6276Ad7K嘉泰姆	SOP-8d7K嘉泰姆	VMd7K嘉泰姆	1d7K嘉泰姆	1d7K嘉泰姆	20d7K嘉泰姆	2.2d7K嘉泰姆	13.2d7K嘉泰姆	0.8d7K嘉泰姆	5~12d7K嘉泰姆	2100d7K嘉泰姆
CXSD6277/A/Bd7K嘉泰姆	SOP8\|TSSOP8d7K嘉泰姆	VMd7K嘉泰姆	1d7K嘉泰姆	1d7K嘉泰姆	5d7K嘉泰姆	5d7K嘉泰姆	13.2d7K嘉泰姆	1.25\|0.8d7K嘉泰姆	5~12d7K嘉泰姆	3000d7K嘉泰姆
CXSD6278d7K嘉泰姆	SOP-8d7K嘉泰姆	VMd7K嘉泰姆	1d7K嘉泰姆	1d7K嘉泰姆	10d7K嘉泰姆	3.3d7K嘉泰姆	5.5d7K嘉泰姆	0.8d7K嘉泰姆	5d7K嘉泰姆	2100d7K嘉泰姆
CXSD6279Bd7K嘉泰姆	SOP-14d7K嘉泰姆	VM d7K嘉泰姆	1d7K嘉泰姆	1d7K嘉泰姆	10d7K嘉泰姆	5d7K嘉泰姆	13.2d7K嘉泰姆	0.8d7K嘉泰姆	12d7K嘉泰姆	2000d7K嘉泰姆
CXSD6280d7K嘉泰姆	TSSOP-24d7K嘉泰姆 \|QFN5x5-32d7K嘉泰姆	VMd7K嘉泰姆	1d7K嘉泰姆	2d7K嘉泰姆	20d7K嘉泰姆	5d7K嘉泰姆	13.2d7K嘉泰姆	0.6d7K嘉泰姆	5~12d7K嘉泰姆	4000d7K嘉泰姆
CXSD6281Nd7K嘉泰姆	SOP14d7K嘉泰姆 QSOP16d7K嘉泰姆 QFN-16d7K嘉泰姆	VMd7K嘉泰姆	1d7K嘉泰姆	1d7K嘉泰姆	30d7K嘉泰姆	2.9d7K嘉泰姆	13.2d7K嘉泰姆	0.9d7K嘉泰姆	12d7K嘉泰姆	4000d7K嘉泰姆
CXSD6282d7K嘉泰姆	SOP-14d7K嘉泰姆	VMd7K嘉泰姆	1d7K嘉泰姆	1d7K嘉泰姆	30d7K嘉泰姆	2.2d7K嘉泰姆	13.2d7K嘉泰姆	0.6d7K嘉泰姆	12d7K嘉泰姆	5000d7K嘉泰姆
CXSD6282Ad7K嘉泰姆	SOP-14d7K嘉泰姆	VMd7K嘉泰姆	1d7K嘉泰姆	1d7K嘉泰姆	30d7K嘉泰姆	2.2d7K嘉泰姆	13.2d7K嘉泰姆	0.6d7K嘉泰姆	12d7K嘉泰姆	5000d7K嘉泰姆
CXSD6283d7K嘉泰姆	SOP-14d7K嘉泰姆	VMd7K嘉泰姆	1d7K嘉泰姆	1d7K嘉泰姆	25d7K嘉泰姆	2.2d7K嘉泰姆	13.2d7K嘉泰姆	0.8d7K嘉泰姆	12d7K嘉泰姆	5000d7K嘉泰姆
CXSD6284/Ad7K嘉泰姆	LQFP7x7 48d7K嘉泰姆 TQFN7x7-48d7K嘉泰姆	VMd7K嘉泰姆	1d7K嘉泰姆	6d7K嘉泰姆	0.015d7K嘉泰姆	1.4d7K嘉泰姆	6.5d7K嘉泰姆	-d7K嘉泰姆	5d7K嘉泰姆	1800d7K嘉泰姆
CXSD6285d7K嘉泰姆	TSSOP-24Pd7K嘉泰姆	VMd7K嘉泰姆	1d7K嘉泰姆	2d7K嘉泰姆	20d7K嘉泰姆	2.97d7K嘉泰姆	5.5d7K嘉泰姆	0.8d7K嘉泰姆	5~12d7K嘉泰姆	5000d7K嘉泰姆
CXSD6286d7K嘉泰姆	SOP-14d7K嘉泰姆	VMd7K嘉泰姆	1d7K嘉泰姆	1d7K嘉泰姆	10d7K嘉泰姆	5d7K嘉泰姆	13.2d7K嘉泰姆	0.8d7K嘉泰姆	12d7K嘉泰姆	3000d7K嘉泰姆
CXSD6287d7K嘉泰姆	SOP-8-P\|DIP-8d7K嘉泰姆	VMd7K嘉泰姆	1d7K嘉泰姆	1d7K嘉泰姆	30d7K嘉泰姆	2.9d7K嘉泰姆	13.2d7K嘉泰姆	1.2d7K嘉泰姆	12d7K嘉泰姆	3000d7K嘉泰姆
CXSD6288d7K嘉泰姆	SSOP28d7K嘉泰姆 QFN4x4-24d7K嘉泰姆	VMd7K嘉泰姆	1d7K嘉泰姆	2d7K嘉泰姆	20d7K嘉泰姆	5d7K嘉泰姆	24d7K嘉泰姆	0.9d7K嘉泰姆	5d7K嘉泰姆	1200d7K嘉泰姆
CXSD6289d7K嘉泰姆	SOP-20d7K嘉泰姆	VMd7K嘉泰姆	1d7K嘉泰姆	2d7K嘉泰姆	20d7K嘉泰姆	2.2d7K嘉泰姆	13.2d7K嘉泰姆	0.6d7K嘉泰姆	5~12d7K嘉泰姆	4000d7K嘉泰姆
CXSD629d7K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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