目录Jh3嘉泰姆

1.产品概述                       2.产品特点Jh3嘉泰姆
3.应用范围                       4.下载产品资料PDF文档 Jh3嘉泰姆
5.产品封装图                     6.电路原理图                   Jh3嘉泰姆
7.功能概述                        8.相关产品Jh3嘉泰姆

一,产品概述(General Description)    Jh3嘉泰姆

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  The CXSD62114 integrates dual step-down, constant-on-time,Jh3嘉泰姆

synchronous PWM controllers (that drives dual N-channel MOSFETs forJh3嘉泰姆
each channel) and two low drop-out regulators as well as various protectionsJh3嘉泰姆
into a chip.The PWM controllers step down high voltage of a batteryJh3嘉泰姆
to generate low-voltage for NB applications. The output of PWM1 andJh3嘉泰姆
PWM2 can be adjusted from 2V to 5.5V by setting a resistive voltage-dividerJh3嘉泰姆
from VOUTx to GND.The linear regulators provide 5V and 3.3V output forJh3嘉泰姆
standby power supply. The linear regulators provide up to 100mA outputJh3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 VOUTxJh3嘉泰姆
by internal switchover MOSFET. It can save power dissipation. The chargeJh3嘉泰姆
pump circuit with 250kHz clock driver uses VOUT1 as its power supply to generate ap-proximately 15V DC voltage.Jh3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),Jh3嘉泰姆
the CXSD62114 provides very high efficiency over light to heavy loadsJh3嘉泰姆

with loading-modulated switching frequencies. The Forced-PWM Mode works nearly at constant frequency for low-noise requirements. The unique ultrasonicJh3嘉泰姆
mode maintains the switching frequency above 25kHz, which eliminates noise in audio application.The CXSD62114A/D has individual enable controls forJh3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.Jh3嘉泰姆
二.产品特点(Features)Jh3嘉泰姆

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Wide Input voltage Range from 5.5V to 25VJh3嘉泰姆
Provide 5 Independent Outputs with ±1.0% Accu-racy Over-TemperatureJh3嘉泰姆
PWM1 Controller with Adjustable (2V to 5.5V) Out-putJh3嘉泰姆
- PWM2 Controller with Adjustable (2V to 5.5V) Out-putJh3嘉泰姆
100mA Low Dropout Regulator (LDO5) with Fixed 5V OutputJh3嘉泰姆
- 100mA Low Dropout Regulator (LDO3) with Fixed 3.3V OutputJh3嘉泰姆
250kHz Clock Signal for 15V Charge Pump (Used PWM1 as Its Power Supply)Jh3嘉泰姆
Excellent Line/Load Regulations about±1.5% overJh3嘉泰姆
temperature range at PWM ChannelsJh3嘉泰姆
Low Consumption in Standby ModeJh3嘉泰姆
2Cells Input Battery SupportJh3嘉泰姆
Built in POR Control Scheme ImplementedJh3嘉泰姆
Constant On-Time Control SchemeJh3嘉泰姆
Built in Soft Start for PWM Outputs and Soft StopJh3嘉泰姆
for PWM Outputs and LDO OutputsJh3嘉泰姆
Integrated Bootstrap Forward P-CH MOSFETJh3嘉泰姆
High Efficiency over Light to Full Load Range (PWMs)Jh3嘉泰姆
Built in Power Good Indicators (PWMs)Jh3嘉泰姆
60% Under-Voltage and 115% Over-Voltage Protec-tions (PWM)Jh3嘉泰姆
Adjustable Current-Limit Protection (PWMs)Jh3嘉泰姆
- Using Sense Low-Side MOSFET’s RDS(ON)Jh3嘉泰姆
Over-Temperature ProtectionJh3嘉泰姆
3mmx3mm Thin QFN-20 (TQFN3x3-20) packageJh3嘉泰姆
Lead Free and Green Device Available (RoHS Compliant)Jh3嘉泰姆
三,应用范围 (Applications)Jh3嘉泰姆

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Notebook and Sub-Notebook ComputersJh3嘉泰姆
Portable DevicesJh3嘉泰姆
DDR1, DDR2, and DDR3 Power SuppliesJh3嘉泰姆
3-Cell and 4-Cell Li+ Battery-Powered DevicesJh3嘉泰姆
Graphic CardsJh3嘉泰姆
Game ConsolesJh3嘉泰姆
TelecommunicationsJh3嘉泰姆
四.下载产品资料PDF文档 Jh3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！Jh3嘉泰姆

 Jh3嘉泰姆

五,产品封装图 (Package)Jh3嘉泰姆

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Jh3嘉泰姆
Jh3嘉泰姆

六.电路原理图Jh3嘉泰姆

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Jh3嘉泰姆

七,功能概述Jh3嘉泰姆

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the node.Jh3嘉泰姆
Decoupling capacitor, the resistor dividers, boot capacitors, and current-limit stetting resistor shouldJh3嘉泰姆
be close to their pins. (For example, place the decoupling ceramic capacitor near the drain of theJh3嘉泰姆
high-side MOSFET as close as possible. The bulk capacitors are also placednear the drain).Jh3嘉泰姆
The input capacitor should be near the drain of the upper MOSFET; the high quality ceramic decouplingJh3嘉泰姆
capacitor can be put close to the VCC and GND pins;the output capacitor should be near the loads. TheJh3嘉泰姆
input capacitor GND should be close to the output ca-pacitor GND and the lower MOSFET GND.Jh3嘉泰姆
The drain of the MOSFETs (V IN and PHASEx nodes)should be a large plane for heat sinking. And PHASExJh3嘉泰姆
pin traces are also the return path for UGATEx. Con-nect these pins to the respective converter’s upperJh3嘉泰姆
MOSFET source.Jh3嘉泰姆
The controller used ripple mode control. Build the re-sistor divider close to the FB1 pin so that the highJh3嘉泰姆
impedance trace is shorter when the output voltage is in ad justable mode. And the FB1 pin traces can’t beJh3嘉泰姆
close to the switching signal traces (UGATEx, LGATEx,BOOTx, and PHASEx).Jh3嘉泰姆
The PGND trace should be a separate trace, and in-dependently go to the source of the low-side MOSFETsJh3嘉泰姆
for current-limit accuracy.Jh3嘉泰姆
八,相关产品                更多同类产品......

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Part_No Jh3嘉泰姆	Package Jh3嘉泰姆	ArchiJh3嘉泰姆 tectuJh3嘉泰姆	PhaseJh3嘉泰姆	No.ofJh3嘉泰姆 PWMJh3嘉泰姆 OutputJh3嘉泰姆	Output Jh3嘉泰姆 CurrentJh3嘉泰姆 (A) Jh3嘉泰姆	InputJh3嘉泰姆 Voltage (V) Jh3嘉泰姆		ReferenceJh3嘉泰姆 VoltageJh3嘉泰姆 (V) Jh3嘉泰姆	Bias Jh3嘉泰姆 VoltageJh3嘉泰姆 (V) Jh3嘉泰姆	QuiescentJh3嘉泰姆 CurrentJh3嘉泰姆 (uA) Jh3嘉泰姆
						minJh3嘉泰姆	maxJh3嘉泰姆
CXSD6273Jh3嘉泰姆	SOP-14Jh3嘉泰姆 QSOP-16Jh3嘉泰姆 QFN4x4-16Jh3嘉泰姆	VM    Jh3嘉泰姆	1   Jh3嘉泰姆	1     Jh3嘉泰姆	30Jh3嘉泰姆	2.9    Jh3嘉泰姆	13.2Jh3嘉泰姆	0.9Jh3嘉泰姆	12     Jh3嘉泰姆	8000Jh3嘉泰姆
CXSD6274Jh3嘉泰姆	SOP-8Jh3嘉泰姆	VM   Jh3嘉泰姆	1Jh3嘉泰姆	1Jh3嘉泰姆	20Jh3嘉泰姆	2.9  Jh3嘉泰姆	13.2 Jh3嘉泰姆	0.8Jh3嘉泰姆	12Jh3嘉泰姆	5000Jh3嘉泰姆
CXSD6274CJh3嘉泰姆	SOP-8Jh3嘉泰姆	VMJh3嘉泰姆	1Jh3嘉泰姆	1Jh3嘉泰姆	20Jh3嘉泰姆	2.9Jh3嘉泰姆	13.2Jh3嘉泰姆	0.8Jh3嘉泰姆	12Jh3嘉泰姆	5000Jh3嘉泰姆
CXSD6275Jh3嘉泰姆	QFN4x4-24Jh3嘉泰姆	VMJh3嘉泰姆	2Jh3嘉泰姆	1Jh3嘉泰姆	60Jh3嘉泰姆	3.1Jh3嘉泰姆	13.2Jh3嘉泰姆	0.6Jh3嘉泰姆	12Jh3嘉泰姆	5000Jh3嘉泰姆
CXSD6276Jh3嘉泰姆	SOP-8Jh3嘉泰姆	VMJh3嘉泰姆	1Jh3嘉泰姆	1Jh3嘉泰姆	20Jh3嘉泰姆	2.2Jh3嘉泰姆	13.2Jh3嘉泰姆	0.8Jh3嘉泰姆	5~12Jh3嘉泰姆	2100Jh3嘉泰姆
CXSD6276AJh3嘉泰姆	SOP-8Jh3嘉泰姆	VMJh3嘉泰姆	1Jh3嘉泰姆	1Jh3嘉泰姆	20Jh3嘉泰姆	2.2Jh3嘉泰姆	13.2Jh3嘉泰姆	0.8Jh3嘉泰姆	5~12Jh3嘉泰姆	2100Jh3嘉泰姆
CXSD6277/A/BJh3嘉泰姆	SOP8|TSSOP8Jh3嘉泰姆	VMJh3嘉泰姆	1Jh3嘉泰姆	1Jh3嘉泰姆	5Jh3嘉泰姆	5Jh3嘉泰姆	13.2Jh3嘉泰姆	1.25|0.8Jh3嘉泰姆	5~12Jh3嘉泰姆	3000Jh3嘉泰姆
CXSD6278Jh3嘉泰姆	SOP-8Jh3嘉泰姆	VMJh3嘉泰姆	1Jh3嘉泰姆	1Jh3嘉泰姆	10Jh3嘉泰姆	3.3Jh3嘉泰姆	5.5Jh3嘉泰姆	0.8Jh3嘉泰姆	5Jh3嘉泰姆	2100Jh3嘉泰姆
CXSD6279BJh3嘉泰姆	SOP-14Jh3嘉泰姆	VM   Jh3嘉泰姆	1Jh3嘉泰姆	1Jh3嘉泰姆	10Jh3嘉泰姆	5Jh3嘉泰姆	13.2Jh3嘉泰姆	0.8Jh3嘉泰姆	12Jh3嘉泰姆	2000Jh3嘉泰姆
CXSD6280Jh3嘉泰姆	TSSOP-24Jh3嘉泰姆 |QFN5x5-32Jh3嘉泰姆	VMJh3嘉泰姆	1Jh3嘉泰姆	2Jh3嘉泰姆	20Jh3嘉泰姆	5Jh3嘉泰姆	13.2Jh3嘉泰姆	0.6Jh3嘉泰姆	5~12Jh3嘉泰姆	4000Jh3嘉泰姆
CXSD6281NJh3嘉泰姆	SOP14Jh3嘉泰姆 QSOP16Jh3嘉泰姆 QFN-16Jh3嘉泰姆	VMJh3嘉泰姆	1Jh3嘉泰姆	1Jh3嘉泰姆	30Jh3嘉泰姆	2.9Jh3嘉泰姆	13.2Jh3嘉泰姆	0.9Jh3嘉泰姆	12Jh3嘉泰姆	4000Jh3嘉泰姆
CXSD6282Jh3嘉泰姆	SOP-14Jh3嘉泰姆	VMJh3嘉泰姆	1Jh3嘉泰姆	1Jh3嘉泰姆	30Jh3嘉泰姆	2.2Jh3嘉泰姆	13.2Jh3嘉泰姆	0.6Jh3嘉泰姆	12Jh3嘉泰姆	5000Jh3嘉泰姆
CXSD6282AJh3嘉泰姆	SOP-14Jh3嘉泰姆	VMJh3嘉泰姆	1Jh3嘉泰姆	1Jh3嘉泰姆	30Jh3嘉泰姆	2.2Jh3嘉泰姆	13.2Jh3嘉泰姆	0.6Jh3嘉泰姆	12Jh3嘉泰姆	5000Jh3嘉泰姆
CXSD6283Jh3嘉泰姆	SOP-14Jh3嘉泰姆	VMJh3嘉泰姆	1Jh3嘉泰姆	1Jh3嘉泰姆	25Jh3嘉泰姆	2.2Jh3嘉泰姆	13.2Jh3嘉泰姆	0.8Jh3嘉泰姆	12Jh3嘉泰姆	5000Jh3嘉泰姆
CXSD6284/AJh3嘉泰姆	LQFP7x7 48Jh3嘉泰姆 TQFN7x7-48Jh3嘉泰姆	VMJh3嘉泰姆	1Jh3嘉泰姆	6Jh3嘉泰姆	0.015Jh3嘉泰姆	1.4Jh3嘉泰姆	6.5Jh3嘉泰姆	-Jh3嘉泰姆	5Jh3嘉泰姆	1800Jh3嘉泰姆
CXSD6285Jh3嘉泰姆	TSSOP-24PJh3嘉泰姆	VMJh3嘉泰姆	1Jh3嘉泰姆	2Jh3嘉泰姆	20Jh3嘉泰姆	2.97Jh3嘉泰姆	5.5Jh3嘉泰姆	0.8Jh3嘉泰姆	5~12Jh3嘉泰姆	5000Jh3嘉泰姆
CXSD6286Jh3嘉泰姆	SOP-14Jh3嘉泰姆	VMJh3嘉泰姆	1Jh3嘉泰姆	1Jh3嘉泰姆	10Jh3嘉泰姆	5Jh3嘉泰姆	13.2Jh3嘉泰姆	0.8Jh3嘉泰姆	12Jh3嘉泰姆	3000Jh3嘉泰姆
CXSD6287Jh3嘉泰姆	SOP-8-P|DIP-8Jh3嘉泰姆	VMJh3嘉泰姆	1Jh3嘉泰姆	1Jh3嘉泰姆	30Jh3嘉泰姆	2.9Jh3嘉泰姆	13.2Jh3嘉泰姆	1.2Jh3嘉泰姆	12Jh3嘉泰姆	3000Jh3嘉泰姆
CXSD6288Jh3嘉泰姆	SSOP28Jh3嘉泰姆 QFN4x4-24Jh3嘉泰姆	VMJh3嘉泰姆	1Jh3嘉泰姆	2Jh3嘉泰姆	20Jh3嘉泰姆	5Jh3嘉泰姆	24Jh3嘉泰姆	0.9Jh3嘉泰姆	5Jh3嘉泰姆	1200Jh3嘉泰姆
CXSD6289Jh3嘉泰姆	SOP-20Jh3嘉泰姆	VMJh3嘉泰姆	1Jh3嘉泰姆	2Jh3嘉泰姆	20Jh3嘉泰姆	2.2Jh3嘉泰姆	13.2Jh3嘉泰姆	0.6Jh3嘉泰姆	5~12Jh3嘉泰姆	4000Jh3嘉泰姆
Jh3嘉泰姆