目录xC4嘉泰姆

1.产品概述                       2.产品特点xC4嘉泰姆
3.应用范围                       4.下载产品资料PDF文档 xC4嘉泰姆
5.产品封装图                     6.电路原理图                   xC4嘉泰姆
7.功能概述                        8.相关产品xC4嘉泰姆

一,产品概述(General Description)    xC4嘉泰姆

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  The CXSD62114 integrates dual step-down, constant-on-time,xC4嘉泰姆

synchronous PWM controllers (that drives dual N-channel MOSFETs forxC4嘉泰姆
each channel) and two low drop-out regulators as well as various protectionsxC4嘉泰姆
into a chip.The PWM controllers step down high voltage of a batteryxC4嘉泰姆
to generate low-voltage for NB applications. The output of PWM1 andxC4嘉泰姆
PWM2 can be adjusted from 2V to 5.5V by setting a resistive voltage-dividerxC4嘉泰姆
from VOUTx to GND.The linear regulators provide 5V and 3.3V output forxC4嘉泰姆
standby power supply. The linear regulators provide up to 100mA outputxC4嘉泰姆
current. When the PWMx output voltage is higher than LDOx bypass threshold, the related LDOx regulator is shut off and its output is connected to VOUTxxC4嘉泰姆
by internal switchover MOSFET. It can save power dissipation. The chargexC4嘉泰姆
pump circuit with 250kHz clock driver uses VOUT1 as its power supply to generate ap-proximately 15V DC voltage.xC4嘉泰姆
  The CXSD62114 provides excellent transient response and accurate DC output voltage in either PFM or PWM Mode. In Pulse-Frequency Mode (PFM),xC4嘉泰姆
the CXSD62114 provides very high efficiency over light to heavy loadsxC4嘉泰姆

with loading-modulated switching frequencies. The Forced-PWM Mode works nearly at constant frequency for low-noise requirements. The unique ultrasonicxC4嘉泰姆
mode maintains the switching frequency above 25kHz, which eliminates noise in audio application.The CXSD62114A/D has individual enable controls forxC4嘉泰姆
each PWM channels. Pulling both EN1/2 pin low shuts down the all of outputs unless LDO3 output. The LDO3 and LDO5 of CXSD62114B/C are always on standby power.The CXSD62114 is available in a TQFN3x3-20 package.xC4嘉泰姆
二.产品特点(Features)xC4嘉泰姆

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Wide Input voltage Range from 5.5V to 25VxC4嘉泰姆
Provide 5 Independent Outputs with ±1.0% Accu-racy Over-TemperaturexC4嘉泰姆
PWM1 Controller with Adjustable (2V to 5.5V) Out-putxC4嘉泰姆
- PWM2 Controller with Adjustable (2V to 5.5V) Out-putxC4嘉泰姆
100mA Low Dropout Regulator (LDO5) with Fixed 5V OutputxC4嘉泰姆
- 100mA Low Dropout Regulator (LDO3) with Fixed 3.3V OutputxC4嘉泰姆
250kHz Clock Signal for 15V Charge Pump (Used PWM1 as Its Power Supply)xC4嘉泰姆
Excellent Line/Load Regulations about±1.5% overxC4嘉泰姆
temperature range at PWM ChannelsxC4嘉泰姆
Low Consumption in Standby ModexC4嘉泰姆
2Cells Input Battery SupportxC4嘉泰姆
Built in POR Control Scheme ImplementedxC4嘉泰姆
Constant On-Time Control SchemexC4嘉泰姆
Built in Soft Start for PWM Outputs and Soft StopxC4嘉泰姆
for PWM Outputs and LDO OutputsxC4嘉泰姆
Integrated Bootstrap Forward P-CH MOSFETxC4嘉泰姆
High Efficiency over Light to Full Load Range (PWMs)xC4嘉泰姆
Built in Power Good Indicators (PWMs)xC4嘉泰姆
60% Under-Voltage and 115% Over-Voltage Protec-tions (PWM)xC4嘉泰姆
Adjustable Current-Limit Protection (PWMs)xC4嘉泰姆
- Using Sense Low-Side MOSFET’s RDS(ON)xC4嘉泰姆
Over-Temperature ProtectionxC4嘉泰姆
3mmx3mm Thin QFN-20 (TQFN3x3-20) packagexC4嘉泰姆
Lead Free and Green Device Available (RoHS Compliant)xC4嘉泰姆
三,应用范围 (Applications)xC4嘉泰姆

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Notebook and Sub-Notebook ComputersxC4嘉泰姆
Portable DevicesxC4嘉泰姆
DDR1, DDR2, and DDR3 Power SuppliesxC4嘉泰姆
3-Cell and 4-Cell Li+ Battery-Powered DevicesxC4嘉泰姆
Graphic CardsxC4嘉泰姆
Game ConsolesxC4嘉泰姆
TelecommunicationsxC4嘉泰姆
四.下载产品资料PDF文档 xC4嘉泰姆

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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！xC4嘉泰姆

 xC4嘉泰姆

五,产品封装图 (Package)xC4嘉泰姆

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xC4嘉泰姆
xC4嘉泰姆

六.电路原理图xC4嘉泰姆

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xC4嘉泰姆

七,功能概述xC4嘉泰姆

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the node.xC4嘉泰姆
Decoupling capacitor, the resistor dividers, boot capacitors, and current-limit stetting resistor shouldxC4嘉泰姆
be close to their pins. (For example, place the decoupling ceramic capacitor near the drain of thexC4嘉泰姆
high-side MOSFET as close as possible. The bulk capacitors are also placednear the drain).xC4嘉泰姆
The input capacitor should be near the drain of the upper MOSFET; the high quality ceramic decouplingxC4嘉泰姆
capacitor can be put close to the VCC and GND pins;the output capacitor should be near the loads. ThexC4嘉泰姆
input capacitor GND should be close to the output ca-pacitor GND and the lower MOSFET GND.xC4嘉泰姆
The drain of the MOSFETs (V IN and PHASEx nodes)should be a large plane for heat sinking. And PHASExxC4嘉泰姆
pin traces are also the return path for UGATEx. Con-nect these pins to the respective converter’s upperxC4嘉泰姆
MOSFET source.xC4嘉泰姆
The controller used ripple mode control. Build the re-sistor divider close to the FB1 pin so that the highxC4嘉泰姆
impedance trace is shorter when the output voltage is in ad justable mode. And the FB1 pin traces can’t bexC4嘉泰姆
close to the switching signal traces (UGATEx, LGATEx,BOOTx, and PHASEx).xC4嘉泰姆
The PGND trace should be a separate trace, and in-dependently go to the source of the low-side MOSFETsxC4嘉泰姆
for current-limit accuracy.xC4嘉泰姆
八,相关产品                更多同类产品......

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Switching Regulator >   Buck ControllerxC4嘉泰姆
Part_No xC4嘉泰姆	Package xC4嘉泰姆	ArchixC4嘉泰姆 tectuxC4嘉泰姆	PhasexC4嘉泰姆	No.ofxC4嘉泰姆 PWMxC4嘉泰姆 OutputxC4嘉泰姆	Output xC4嘉泰姆 CurrentxC4嘉泰姆 (A) xC4嘉泰姆	InputxC4嘉泰姆 Voltage (V) xC4嘉泰姆		ReferencexC4嘉泰姆 VoltagexC4嘉泰姆 (V) xC4嘉泰姆	Bias xC4嘉泰姆 VoltagexC4嘉泰姆 (V) xC4嘉泰姆	QuiescentxC4嘉泰姆 CurrentxC4嘉泰姆 (uA) xC4嘉泰姆
						minxC4嘉泰姆	maxxC4嘉泰姆
CXSD6273xC4嘉泰姆	SOP-14xC4嘉泰姆 QSOP-16xC4嘉泰姆 QFN4x4-16xC4嘉泰姆	VM    xC4嘉泰姆	1   xC4嘉泰姆	1     xC4嘉泰姆	30xC4嘉泰姆	2.9    xC4嘉泰姆	13.2xC4嘉泰姆	0.9xC4嘉泰姆	12     xC4嘉泰姆	8000xC4嘉泰姆
CXSD6274xC4嘉泰姆	SOP-8xC4嘉泰姆	VM   xC4嘉泰姆	1xC4嘉泰姆	1xC4嘉泰姆	20xC4嘉泰姆	2.9  xC4嘉泰姆	13.2 xC4嘉泰姆	0.8xC4嘉泰姆	12xC4嘉泰姆	5000xC4嘉泰姆
CXSD6274CxC4嘉泰姆	SOP-8xC4嘉泰姆	VMxC4嘉泰姆	1xC4嘉泰姆	1xC4嘉泰姆	20xC4嘉泰姆	2.9xC4嘉泰姆	13.2xC4嘉泰姆	0.8xC4嘉泰姆	12xC4嘉泰姆	5000xC4嘉泰姆
CXSD6275xC4嘉泰姆	QFN4x4-24xC4嘉泰姆	VMxC4嘉泰姆	2xC4嘉泰姆	1xC4嘉泰姆	60xC4嘉泰姆	3.1xC4嘉泰姆	13.2xC4嘉泰姆	0.6xC4嘉泰姆	12xC4嘉泰姆	5000xC4嘉泰姆
CXSD6276xC4嘉泰姆	SOP-8xC4嘉泰姆	VMxC4嘉泰姆	1xC4嘉泰姆	1xC4嘉泰姆	20xC4嘉泰姆	2.2xC4嘉泰姆	13.2xC4嘉泰姆	0.8xC4嘉泰姆	5~12xC4嘉泰姆	2100xC4嘉泰姆
CXSD6276AxC4嘉泰姆	SOP-8xC4嘉泰姆	VMxC4嘉泰姆	1xC4嘉泰姆	1xC4嘉泰姆	20xC4嘉泰姆	2.2xC4嘉泰姆	13.2xC4嘉泰姆	0.8xC4嘉泰姆	5~12xC4嘉泰姆	2100xC4嘉泰姆
CXSD6277/A/BxC4嘉泰姆	SOP8|TSSOP8xC4嘉泰姆	VMxC4嘉泰姆	1xC4嘉泰姆	1xC4嘉泰姆	5xC4嘉泰姆	5xC4嘉泰姆	13.2xC4嘉泰姆	1.25|0.8xC4嘉泰姆	5~12xC4嘉泰姆	3000xC4嘉泰姆
CXSD6278xC4嘉泰姆	SOP-8xC4嘉泰姆	VMxC4嘉泰姆	1xC4嘉泰姆	1xC4嘉泰姆	10xC4嘉泰姆	3.3xC4嘉泰姆	5.5xC4嘉泰姆	0.8xC4嘉泰姆	5xC4嘉泰姆	2100xC4嘉泰姆
CXSD6279BxC4嘉泰姆	SOP-14xC4嘉泰姆	VM   xC4嘉泰姆	1xC4嘉泰姆	1xC4嘉泰姆	10xC4嘉泰姆	5xC4嘉泰姆	13.2xC4嘉泰姆	0.8xC4嘉泰姆	12xC4嘉泰姆	2000xC4嘉泰姆
CXSD6280xC4嘉泰姆	TSSOP-24xC4嘉泰姆 |QFN5x5-32xC4嘉泰姆	VMxC4嘉泰姆	1xC4嘉泰姆	2xC4嘉泰姆	20xC4嘉泰姆	5xC4嘉泰姆	13.2xC4嘉泰姆	0.6xC4嘉泰姆	5~12xC4嘉泰姆	4000xC4嘉泰姆
CXSD6281NxC4嘉泰姆	SOP14xC4嘉泰姆 QSOP16xC4嘉泰姆 QFN-16xC4嘉泰姆	VMxC4嘉泰姆	1xC4嘉泰姆	1xC4嘉泰姆	30xC4嘉泰姆	2.9xC4嘉泰姆	13.2xC4嘉泰姆	0.9xC4嘉泰姆	12xC4嘉泰姆	4000xC4嘉泰姆
CXSD6282xC4嘉泰姆	SOP-14xC4嘉泰姆	VMxC4嘉泰姆	1xC4嘉泰姆	1xC4嘉泰姆	30xC4嘉泰姆	2.2xC4嘉泰姆	13.2xC4嘉泰姆	0.6xC4嘉泰姆	12xC4嘉泰姆	5000xC4嘉泰姆
CXSD6282AxC4嘉泰姆	SOP-14xC4嘉泰姆	VMxC4嘉泰姆	1xC4嘉泰姆	1xC4嘉泰姆	30xC4嘉泰姆	2.2xC4嘉泰姆	13.2xC4嘉泰姆	0.6xC4嘉泰姆	12xC4嘉泰姆	5000xC4嘉泰姆
CXSD6283xC4嘉泰姆	SOP-14xC4嘉泰姆	VMxC4嘉泰姆	1xC4嘉泰姆	1xC4嘉泰姆	25xC4嘉泰姆	2.2xC4嘉泰姆	13.2xC4嘉泰姆	0.8xC4嘉泰姆	12xC4嘉泰姆	5000xC4嘉泰姆
CXSD6284/AxC4嘉泰姆	LQFP7x7 48xC4嘉泰姆 TQFN7x7-48xC4嘉泰姆	VMxC4嘉泰姆	1xC4嘉泰姆	6xC4嘉泰姆	0.015xC4嘉泰姆	1.4xC4嘉泰姆	6.5xC4嘉泰姆	-xC4嘉泰姆	5xC4嘉泰姆	1800xC4嘉泰姆
CXSD6285xC4嘉泰姆	TSSOP-24PxC4嘉泰姆	VMxC4嘉泰姆	1xC4嘉泰姆	2xC4嘉泰姆	20xC4嘉泰姆	2.97xC4嘉泰姆	5.5xC4嘉泰姆	0.8xC4嘉泰姆	5~12xC4嘉泰姆	5000xC4嘉泰姆
CXSD6286xC4嘉泰姆	SOP-14xC4嘉泰姆	VMxC4嘉泰姆	1xC4嘉泰姆	1xC4嘉泰姆	10xC4嘉泰姆	5xC4嘉泰姆	13.2xC4嘉泰姆	0.8xC4嘉泰姆	12xC4嘉泰姆	3000xC4嘉泰姆
CXSD6287xC4嘉泰姆	SOP-8-P|DIP-8xC4嘉泰姆	VMxC4嘉泰姆	1xC4嘉泰姆	1xC4嘉泰姆	30xC4嘉泰姆	2.9xC4嘉泰姆	13.2xC4嘉泰姆	1.2xC4嘉泰姆	12xC4嘉泰姆	3000xC4嘉泰姆
CXSD6288xC4嘉泰姆	SSOP28xC4嘉泰姆 QFN4x4-24xC4嘉泰姆	VMxC4嘉泰姆	1xC4嘉泰姆	2xC4嘉泰姆	20xC4嘉泰姆	5xC4嘉泰姆	24xC4嘉泰姆	0.9xC4嘉泰姆	5xC4嘉泰姆	1200xC4嘉泰姆
CXSD6289xC4嘉泰姆	SOP-20xC4嘉泰姆	VMxC4嘉泰姆	1xC4嘉泰姆	2xC4嘉泰姆	20xC4嘉泰姆	2.2xC4嘉泰姆	13.2xC4嘉泰姆	0.6xC4嘉泰姆	5~12xC4嘉泰姆	4000xC4嘉泰姆
xC4嘉泰姆

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