目录Oir嘉泰姆

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

一,产品概述(General Description)    Oir嘉泰姆

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

synchronous PWM controllers (that drives dual N-channel MOSFETs forOir嘉泰姆
each channel) and two low drop-out regulators as well as various protectionsOir嘉泰姆
into a chip.The PWM controllers step down high voltage of a batteryOir嘉泰姆
to generate low-voltage for NB applications. The output of PWM1 andOir嘉泰姆
PWM2 can be adjusted from 2V to 5.5V by setting a resistive voltage-dividerOir嘉泰姆
from VOUTx to GND.The linear regulators provide 5V and 3.3V output forOir嘉泰姆
standby power supply. The linear regulators provide up to 100mA outputOir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 VOUTxOir嘉泰姆
by internal switchover MOSFET. It can save power dissipation. The chargeOir嘉泰姆
pump circuit with 250kHz clock driver uses VOUT1 as its power supply to generate ap-proximately 15V DC voltage.Oir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),Oir嘉泰姆
the CXSD62114 provides very high efficiency over light to heavy loadsOir嘉泰姆

with loading-modulated switching frequencies. The Forced-PWM Mode works nearly at constant frequency for low-noise requirements. The unique ultrasonicOir嘉泰姆
mode maintains the switching frequency above 25kHz, which eliminates noise in audio application.The CXSD62114A/D has individual enable controls forOir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.Oir嘉泰姆
二.产品特点(Features)Oir嘉泰姆

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

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Notebook and Sub-Notebook ComputersOir嘉泰姆
Portable DevicesOir嘉泰姆
DDR1, DDR2, and DDR3 Power SuppliesOir嘉泰姆
3-Cell and 4-Cell Li+ Battery-Powered DevicesOir嘉泰姆
Graphic CardsOir嘉泰姆
Game ConsolesOir嘉泰姆
TelecommunicationsOir嘉泰姆
四.下载产品资料PDF文档 Oir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！Oir嘉泰姆

 Oir嘉泰姆

五,产品封装图 (Package)Oir嘉泰姆

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Oir嘉泰姆
Oir嘉泰姆

六.电路原理图Oir嘉泰姆

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七,功能概述Oir嘉泰姆

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

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Switching Regulator >   Buck ControllerOir嘉泰姆
Part_No Oir嘉泰姆	Package Oir嘉泰姆	ArchiOir嘉泰姆 tectuOir嘉泰姆	PhaseOir嘉泰姆	No.ofOir嘉泰姆 PWMOir嘉泰姆 OutputOir嘉泰姆	Output Oir嘉泰姆 CurrentOir嘉泰姆 (A) Oir嘉泰姆	InputOir嘉泰姆 Voltage (V) Oir嘉泰姆		ReferenceOir嘉泰姆 VoltageOir嘉泰姆 (V) Oir嘉泰姆	Bias Oir嘉泰姆 VoltageOir嘉泰姆 (V) Oir嘉泰姆	QuiescentOir嘉泰姆 CurrentOir嘉泰姆 (uA) Oir嘉泰姆
						minOir嘉泰姆	maxOir嘉泰姆
CXSD6273Oir嘉泰姆	SOP-14Oir嘉泰姆 QSOP-16Oir嘉泰姆 QFN4x4-16Oir嘉泰姆	VM    Oir嘉泰姆	1   Oir嘉泰姆	1     Oir嘉泰姆	30Oir嘉泰姆	2.9    Oir嘉泰姆	13.2Oir嘉泰姆	0.9Oir嘉泰姆	12     Oir嘉泰姆	8000Oir嘉泰姆
CXSD6274Oir嘉泰姆	SOP-8Oir嘉泰姆	VM   Oir嘉泰姆	1Oir嘉泰姆	1Oir嘉泰姆	20Oir嘉泰姆	2.9  Oir嘉泰姆	13.2 Oir嘉泰姆	0.8Oir嘉泰姆	12Oir嘉泰姆	5000Oir嘉泰姆
CXSD6274COir嘉泰姆	SOP-8Oir嘉泰姆	VMOir嘉泰姆	1Oir嘉泰姆	1Oir嘉泰姆	20Oir嘉泰姆	2.9Oir嘉泰姆	13.2Oir嘉泰姆	0.8Oir嘉泰姆	12Oir嘉泰姆	5000Oir嘉泰姆
CXSD6275Oir嘉泰姆	QFN4x4-24Oir嘉泰姆	VMOir嘉泰姆	2Oir嘉泰姆	1Oir嘉泰姆	60Oir嘉泰姆	3.1Oir嘉泰姆	13.2Oir嘉泰姆	0.6Oir嘉泰姆	12Oir嘉泰姆	5000Oir嘉泰姆
CXSD6276Oir嘉泰姆	SOP-8Oir嘉泰姆	VMOir嘉泰姆	1Oir嘉泰姆	1Oir嘉泰姆	20Oir嘉泰姆	2.2Oir嘉泰姆	13.2Oir嘉泰姆	0.8Oir嘉泰姆	5~12Oir嘉泰姆	2100Oir嘉泰姆
CXSD6276AOir嘉泰姆	SOP-8Oir嘉泰姆	VMOir嘉泰姆	1Oir嘉泰姆	1Oir嘉泰姆	20Oir嘉泰姆	2.2Oir嘉泰姆	13.2Oir嘉泰姆	0.8Oir嘉泰姆	5~12Oir嘉泰姆	2100Oir嘉泰姆
CXSD6277/A/BOir嘉泰姆	SOP8|TSSOP8Oir嘉泰姆	VMOir嘉泰姆	1Oir嘉泰姆	1Oir嘉泰姆	5Oir嘉泰姆	5Oir嘉泰姆	13.2Oir嘉泰姆	1.25|0.8Oir嘉泰姆	5~12Oir嘉泰姆	3000Oir嘉泰姆
CXSD6278Oir嘉泰姆	SOP-8Oir嘉泰姆	VMOir嘉泰姆	1Oir嘉泰姆	1Oir嘉泰姆	10Oir嘉泰姆	3.3Oir嘉泰姆	5.5Oir嘉泰姆	0.8Oir嘉泰姆	5Oir嘉泰姆	2100Oir嘉泰姆
CXSD6279BOir嘉泰姆	SOP-14Oir嘉泰姆	VM   Oir嘉泰姆	1Oir嘉泰姆	1Oir嘉泰姆	10Oir嘉泰姆	5Oir嘉泰姆	13.2Oir嘉泰姆	0.8Oir嘉泰姆	12Oir嘉泰姆	2000Oir嘉泰姆
CXSD6280Oir嘉泰姆	TSSOP-24Oir嘉泰姆 |QFN5x5-32Oir嘉泰姆	VMOir嘉泰姆	1Oir嘉泰姆	2Oir嘉泰姆	20Oir嘉泰姆	5Oir嘉泰姆	13.2Oir嘉泰姆	0.6Oir嘉泰姆	5~12Oir嘉泰姆	4000Oir嘉泰姆
CXSD6281NOir嘉泰姆	SOP14Oir嘉泰姆 QSOP16Oir嘉泰姆 QFN-16Oir嘉泰姆	VMOir嘉泰姆	1Oir嘉泰姆	1Oir嘉泰姆	30Oir嘉泰姆	2.9Oir嘉泰姆	13.2Oir嘉泰姆	0.9Oir嘉泰姆	12Oir嘉泰姆	4000Oir嘉泰姆
CXSD6282Oir嘉泰姆	SOP-14Oir嘉泰姆	VMOir嘉泰姆	1Oir嘉泰姆	1Oir嘉泰姆	30Oir嘉泰姆	2.2Oir嘉泰姆	13.2Oir嘉泰姆	0.6Oir嘉泰姆	12Oir嘉泰姆	5000Oir嘉泰姆
CXSD6282AOir嘉泰姆	SOP-14Oir嘉泰姆	VMOir嘉泰姆	1Oir嘉泰姆	1Oir嘉泰姆	30Oir嘉泰姆	2.2Oir嘉泰姆	13.2Oir嘉泰姆	0.6Oir嘉泰姆	12Oir嘉泰姆	5000Oir嘉泰姆
CXSD6283Oir嘉泰姆	SOP-14Oir嘉泰姆	VMOir嘉泰姆	1Oir嘉泰姆	1Oir嘉泰姆	25Oir嘉泰姆	2.2Oir嘉泰姆	13.2Oir嘉泰姆	0.8Oir嘉泰姆	12Oir嘉泰姆	5000Oir嘉泰姆
CXSD6284/AOir嘉泰姆	LQFP7x7 48Oir嘉泰姆 TQFN7x7-48Oir嘉泰姆	VMOir嘉泰姆	1Oir嘉泰姆	6Oir嘉泰姆	0.015Oir嘉泰姆	1.4Oir嘉泰姆	6.5Oir嘉泰姆	-Oir嘉泰姆	5Oir嘉泰姆	1800Oir嘉泰姆
CXSD6285Oir嘉泰姆	TSSOP-24POir嘉泰姆	VMOir嘉泰姆	1Oir嘉泰姆	2Oir嘉泰姆	20Oir嘉泰姆	2.97Oir嘉泰姆	5.5Oir嘉泰姆	0.8Oir嘉泰姆	5~12Oir嘉泰姆	5000Oir嘉泰姆
CXSD6286Oir嘉泰姆	SOP-14Oir嘉泰姆	VMOir嘉泰姆	1Oir嘉泰姆	1Oir嘉泰姆	10Oir嘉泰姆	5Oir嘉泰姆	13.2Oir嘉泰姆	0.8Oir嘉泰姆	12Oir嘉泰姆	3000Oir嘉泰姆
CXSD6287Oir嘉泰姆	SOP-8-P|DIP-8Oir嘉泰姆	VMOir嘉泰姆	1Oir嘉泰姆	1Oir嘉泰姆	30Oir嘉泰姆	2.9Oir嘉泰姆	13.2Oir嘉泰姆	1.2Oir嘉泰姆	12Oir嘉泰姆	3000Oir嘉泰姆
CXSD6288Oir嘉泰姆	SSOP28Oir嘉泰姆 QFN4x4-24Oir嘉泰姆	VMOir嘉泰姆	1Oir嘉泰姆	2Oir嘉泰姆	20Oir嘉泰姆	5Oir嘉泰姆	24Oir嘉泰姆	0.9Oir嘉泰姆	5Oir嘉泰姆	1200Oir嘉泰姆
CXSD6289Oir嘉泰姆	SOP-20Oir嘉泰姆	VMOir嘉泰姆	1Oir嘉泰姆	2Oir嘉泰姆	20Oir嘉泰姆	2.2Oir嘉泰姆	13.2Oir嘉泰姆	0.6Oir嘉泰姆	5~12Oir嘉泰姆	4000Oir嘉泰姆
Oir嘉泰姆

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