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：129

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iv2嘉泰姆

1.产品概述         2.产品特点iv2嘉泰姆
3.应用范围       4.下载产品资料PDF文档 iv2嘉泰姆
5.产品封装图                     6.电路原理图             iv2嘉泰姆
7.功能概述       8.相关产品iv2嘉泰姆

一,产品概述(General Description) iv2嘉泰姆
The CXSD62108 is a single-phase, constant-on-time,synchronous PWMiv2嘉泰姆
controller, which drives N-channel MOSFETs. The CXSD62108 steps down highiv2嘉泰姆
voltage to generate low-voltage chipset or RAM supplies in notebook computers.iv2嘉泰姆
The CXSD62108 provides excellent transient response and accurate DCiv2嘉泰姆
voltage output in either PFM or PWM Mode.In Pulse Frequency Mode (PFM),iv2嘉泰姆
the CXSD62108 provides very high efficiency over light to heavy loads with iv2嘉泰姆

loading-modulated switching frequencies. In PWM Mode, the converter worksiv2嘉泰姆

nearly at constant frequency for low-noise requirements.iv2嘉泰姆
The CXSD62108 is equipped with accurate positive current-limit, outputiv2嘉泰姆
under-voltage, and output over-voltage protections, perfect for NB applications.iv2嘉泰姆
The Power-On-Reset function monitors the voltage on VCC and PVCC toiv2嘉泰姆
prevent wrong operation during power-on. The CXSD62108 has a 1.2ms digitaliv2嘉泰姆
soft-start and built-in an integrated output discharge device for soft-stop. An iv2嘉泰姆

internal integrated soft-start ramps up the output voltage with programmable iv2嘉泰姆

slew rate to reduce the start-up current. A soft-stop function actively iv2嘉泰姆

discharges the output capacitors.iv2嘉泰姆
The CXSD62108 is available in 14pin TSSOP, 14pin QFN and 16pin TQFNiv2嘉泰姆
packages respectively.iv2嘉泰姆
二.产品特点(Features)iv2嘉泰姆
Adjustable Output Voltage from +0.75V to +5.5Viv2嘉泰姆
- 0.75V Reference Voltageiv2嘉泰姆
- ±1% Accuracy Over-Temperatureiv2嘉泰姆
Operates from An Input Battery Voltage Range ofiv2嘉泰姆
+1.8V to +28Viv2嘉泰姆
Power-On-Reset Monitoring on VCC Pin and PVCC Piniv2嘉泰姆
Excellent Line and Load Transient Responsesiv2嘉泰姆
PFM Mode for Increased Light Load Efficiencyiv2嘉泰姆
Programmable PWM Frequency from 100kHz to 500kHziv2嘉泰姆
Integrated MOSFET Driversiv2嘉泰姆
Integrated Bootstrap Forward P-CH MOSFETiv2嘉泰姆
Adjustable Integrated Soft-Start and Soft-Stopiv2嘉泰姆
Selectable Forced PWM or Automatic PFM/PWM Modeiv2嘉泰姆
Power Good Monitoringiv2嘉泰姆
70% Under-Voltage Protectioniv2嘉泰姆
125% Over-Voltage Protectioniv2嘉泰姆
Adjustable Current-Limit Protectioniv2嘉泰姆
- Using Sense Low-Side MOSFET’s RDS(ON)iv2嘉泰姆
Over-Temperature Protectioniv2嘉泰姆
TSSOP-14, QFN3.5x3.5-14, and TQFN3x3-16 Packagesiv2嘉泰姆
Lead Free and Green Devices Available (RoHS Compliant)iv2嘉泰姆
三,应用范围 (Applications)iv2嘉泰姆
Notebookiv2嘉泰姆
Table PCiv2嘉泰姆
Hand-Held Portableiv2嘉泰姆
AIO PCiv2嘉泰姆
四.下载产品资料PDF文档 iv2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！iv2嘉泰姆

QQ截图20160419174301.jpg iv2嘉泰姆

五,产品封装图 (Package)iv2嘉泰姆

iv2嘉泰姆

六.电路原理图iv2嘉泰姆

iv2嘉泰姆
七,功能概述iv2嘉泰姆

Layout Consideration (Cont.)iv2嘉泰姆
· The signals going through theses traces have both high dv/dt and high di/dt with high peak charging and dis-iv2嘉泰姆
charging current. The traces from the gate drivers to the MOSFETs (UGATE and LGATE) should be short and wide.iv2嘉泰姆
· Place the source of the high-side MOSFET and the drain of the low-side MOSFET as close as possible. Minimiz-iv2嘉泰姆
ing the impedance with wide layout plane between the two pads reduces the voltage bounce of the node. Iniv2嘉泰姆
addition, the large layout plane between the drain of the MOSFETs (VIN and PHASE nodes) can get better heativ2嘉泰姆
sinking.iv2嘉泰姆
· The PGND is the current sensing circuit reference ground and also the power ground of the LGATE low-iv2嘉泰姆
side MOSFET. On the hand, the PGND trace should be a separate trace and independently go to the source of theiv2嘉泰姆
low-side MOSFET. Besides, the current sense resistor should be close to OCSET pin to avoid parasitic capaci-iv2嘉泰姆
tor effect and noise coupling.iv2嘉泰姆
· Decoupling capacitors, the resistor-divider, and boot capacitor should be close to their pins. (For example, placeiv2嘉泰姆
the decoupling ceramic capacitor close to the drain of the high-side MOSFET as close as possible.)iv2嘉泰姆
· The input bulk capacitors should be close to the drain of the high-side MOSFET, and the output bulk capacitorsiv2嘉泰姆
should be close to the loads. The input capacitor’s ground should be close to the grounds of the output capacitorsiv2嘉泰姆
and low-side MOSFET.iv2嘉泰姆
· Locate the resistor-divider close to the FB pin to mini-mize the high impedance trace. In addition, FB pin tracesiv2嘉泰姆
can’t be close to the switching signal traces (UGATE, LGATE, BOOT, and PHASE).iv2嘉泰姆
八,相关产品 更多同类产品...... iv2嘉泰姆

Switching Regulator > Buck Controlleriv2嘉泰姆
Part_No iv2嘉泰姆	Package iv2嘉泰姆	Archiiv2嘉泰姆 tectuiv2嘉泰姆	Phaseiv2嘉泰姆	No.ofiv2嘉泰姆 PWMiv2嘉泰姆 Outputiv2嘉泰姆	Output iv2嘉泰姆 Currentiv2嘉泰姆 (A) iv2嘉泰姆	Inputiv2嘉泰姆 Voltage (V) iv2嘉泰姆		Referenceiv2嘉泰姆 Voltageiv2嘉泰姆 (V) iv2嘉泰姆	Bias iv2嘉泰姆 Voltageiv2嘉泰姆 (V) iv2嘉泰姆	Quiescentiv2嘉泰姆 Currentiv2嘉泰姆 (uA) iv2嘉泰姆
Part_No iv2嘉泰姆	Package iv2嘉泰姆	Archiiv2嘉泰姆 tectuiv2嘉泰姆	Phaseiv2嘉泰姆	No.ofiv2嘉泰姆 PWMiv2嘉泰姆 Outputiv2嘉泰姆	Output iv2嘉泰姆 Currentiv2嘉泰姆 (A) iv2嘉泰姆	miniv2嘉泰姆	maxiv2嘉泰姆	Referenceiv2嘉泰姆 Voltageiv2嘉泰姆 (V) iv2嘉泰姆	Bias iv2嘉泰姆 Voltageiv2嘉泰姆 (V) iv2嘉泰姆	Quiescentiv2嘉泰姆 Currentiv2嘉泰姆 (uA) iv2嘉泰姆
CXSD6273iv2嘉泰姆	SOP-14iv2嘉泰姆 QSOP-16iv2嘉泰姆 QFN4x4-16iv2嘉泰姆	VM iv2嘉泰姆	1 iv2嘉泰姆	1 iv2嘉泰姆	30iv2嘉泰姆	2.9 iv2嘉泰姆	13.2iv2嘉泰姆	0.9iv2嘉泰姆	12 iv2嘉泰姆	8000iv2嘉泰姆
CXSD6274iv2嘉泰姆	SOP-8iv2嘉泰姆	VM iv2嘉泰姆	1iv2嘉泰姆	1iv2嘉泰姆	20iv2嘉泰姆	2.9 iv2嘉泰姆	13.2 iv2嘉泰姆	0.8iv2嘉泰姆	12iv2嘉泰姆	5000iv2嘉泰姆
CXSD6274Civ2嘉泰姆	SOP-8iv2嘉泰姆	VMiv2嘉泰姆	1iv2嘉泰姆	1iv2嘉泰姆	20iv2嘉泰姆	2.9iv2嘉泰姆	13.2iv2嘉泰姆	0.8iv2嘉泰姆	12iv2嘉泰姆	5000iv2嘉泰姆
CXSD6275iv2嘉泰姆	QFN4x4-24iv2嘉泰姆	VMiv2嘉泰姆	2iv2嘉泰姆	1iv2嘉泰姆	60iv2嘉泰姆	3.1iv2嘉泰姆	13.2iv2嘉泰姆	0.6iv2嘉泰姆	12iv2嘉泰姆	5000iv2嘉泰姆
CXSD6276iv2嘉泰姆	SOP-8iv2嘉泰姆	VMiv2嘉泰姆	1iv2嘉泰姆	1iv2嘉泰姆	20iv2嘉泰姆	2.2iv2嘉泰姆	13.2iv2嘉泰姆	0.8iv2嘉泰姆	5~12iv2嘉泰姆	2100iv2嘉泰姆
CXSD6276Aiv2嘉泰姆	SOP-8iv2嘉泰姆	VMiv2嘉泰姆	1iv2嘉泰姆	1iv2嘉泰姆	20iv2嘉泰姆	2.2iv2嘉泰姆	13.2iv2嘉泰姆	0.8iv2嘉泰姆	5~12iv2嘉泰姆	2100iv2嘉泰姆
CXSD6277/A/Biv2嘉泰姆	SOP8\|TSSOP8iv2嘉泰姆	VMiv2嘉泰姆	1iv2嘉泰姆	1iv2嘉泰姆	5iv2嘉泰姆	5iv2嘉泰姆	13.2iv2嘉泰姆	1.25\|0.8iv2嘉泰姆	5~12iv2嘉泰姆	3000iv2嘉泰姆
CXSD6278iv2嘉泰姆	SOP-8iv2嘉泰姆	VMiv2嘉泰姆	1iv2嘉泰姆	1iv2嘉泰姆	10iv2嘉泰姆	3.3iv2嘉泰姆	5.5iv2嘉泰姆	0.8iv2嘉泰姆	5iv2嘉泰姆	2100iv2嘉泰姆
CXSD6279Biv2嘉泰姆	SOP-14iv2嘉泰姆	VM iv2嘉泰姆	1iv2嘉泰姆	1iv2嘉泰姆	10iv2嘉泰姆	5iv2嘉泰姆	13.2iv2嘉泰姆	0.8iv2嘉泰姆	12iv2嘉泰姆	2000iv2嘉泰姆
CXSD6280iv2嘉泰姆	TSSOP-24iv2嘉泰姆 \|QFN5x5-32iv2嘉泰姆	VMiv2嘉泰姆	1iv2嘉泰姆	2iv2嘉泰姆	20iv2嘉泰姆	5iv2嘉泰姆	13.2iv2嘉泰姆	0.6iv2嘉泰姆	5~12iv2嘉泰姆	4000iv2嘉泰姆
CXSD6281Niv2嘉泰姆	SOP14iv2嘉泰姆 QSOP16iv2嘉泰姆 QFN-16iv2嘉泰姆	VMiv2嘉泰姆	1iv2嘉泰姆	1iv2嘉泰姆	30iv2嘉泰姆	2.9iv2嘉泰姆	13.2iv2嘉泰姆	0.9iv2嘉泰姆	12iv2嘉泰姆	4000iv2嘉泰姆
CXSD6282iv2嘉泰姆	SOP-14iv2嘉泰姆	VMiv2嘉泰姆	1iv2嘉泰姆	1iv2嘉泰姆	30iv2嘉泰姆	2.2iv2嘉泰姆	13.2iv2嘉泰姆	0.6iv2嘉泰姆	12iv2嘉泰姆	5000iv2嘉泰姆
CXSD6282Aiv2嘉泰姆	SOP-14iv2嘉泰姆	VMiv2嘉泰姆	1iv2嘉泰姆	1iv2嘉泰姆	30iv2嘉泰姆	2.2iv2嘉泰姆	13.2iv2嘉泰姆	0.6iv2嘉泰姆	12iv2嘉泰姆	5000iv2嘉泰姆
CXSD6283iv2嘉泰姆	SOP-14iv2嘉泰姆	VMiv2嘉泰姆	1iv2嘉泰姆	1iv2嘉泰姆	25iv2嘉泰姆	2.2iv2嘉泰姆	13.2iv2嘉泰姆	0.8iv2嘉泰姆	12iv2嘉泰姆	5000iv2嘉泰姆
CXSD6284/Aiv2嘉泰姆	LQFP7x7 48iv2嘉泰姆 TQFN7x7-48iv2嘉泰姆	VMiv2嘉泰姆	1iv2嘉泰姆	6iv2嘉泰姆	0.015iv2嘉泰姆	1.4iv2嘉泰姆	6.5iv2嘉泰姆	-iv2嘉泰姆	5iv2嘉泰姆	1800iv2嘉泰姆
CXSD6285iv2嘉泰姆	TSSOP-24Piv2嘉泰姆	VMiv2嘉泰姆	1iv2嘉泰姆	2iv2嘉泰姆	20iv2嘉泰姆	2.97iv2嘉泰姆	5.5iv2嘉泰姆	0.8iv2嘉泰姆	5~12iv2嘉泰姆	5000iv2嘉泰姆
CXSD6286iv2嘉泰姆	SOP-14iv2嘉泰姆	VMiv2嘉泰姆	1iv2嘉泰姆	1iv2嘉泰姆	10iv2嘉泰姆	5iv2嘉泰姆	13.2iv2嘉泰姆	0.8iv2嘉泰姆	12iv2嘉泰姆	3000iv2嘉泰姆
CXSD6287iv2嘉泰姆	SOP-8-P\|DIP-8iv2嘉泰姆	VMiv2嘉泰姆	1iv2嘉泰姆	1iv2嘉泰姆	30iv2嘉泰姆	2.9iv2嘉泰姆	13.2iv2嘉泰姆	1.2iv2嘉泰姆	12iv2嘉泰姆	3000iv2嘉泰姆
CXSD6288iv2嘉泰姆	SSOP28iv2嘉泰姆 QFN4x4-24iv2嘉泰姆	VMiv2嘉泰姆	1iv2嘉泰姆	2iv2嘉泰姆	20iv2嘉泰姆	5iv2嘉泰姆	24iv2嘉泰姆	0.9iv2嘉泰姆	5iv2嘉泰姆	1200iv2嘉泰姆
CXSD6289iv2嘉泰姆	SOP-20iv2嘉泰姆	VMiv2嘉泰姆	1iv2嘉泰姆	2iv2嘉泰姆	20iv2嘉泰姆	2.2iv2嘉泰姆	13.2iv2嘉泰姆	0.6iv2嘉泰姆	5~12iv2嘉泰姆	4000iv2嘉泰姆
CXSD629iv2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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