目录Yj5嘉泰姆

1.产品概述                       2.产品特点Yj5嘉泰姆
3.应用范围                       4.下载产品资料PDF文档 Yj5嘉泰姆
5.产品封装图                     6.电路原理图                   Yj5嘉泰姆
7.功能概述                        8.相关产品Yj5嘉泰姆

一,产品概述(General Description)    Yj5嘉泰姆

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  The CXSD62114 integrates dual step-down, constant-on-time,Yj5嘉泰姆

synchronous PWM controllers (that drives dual N-channel MOSFETs forYj5嘉泰姆
each channel) and two low drop-out regulators as well as various protectionsYj5嘉泰姆
into a chip.The PWM controllers step down high voltage of a batteryYj5嘉泰姆
to generate low-voltage for NB applications. The output of PWM1 andYj5嘉泰姆
PWM2 can be adjusted from 2V to 5.5V by setting a resistive voltage-dividerYj5嘉泰姆
from VOUTx to GND.The linear regulators provide 5V and 3.3V output forYj5嘉泰姆
standby power supply. The linear regulators provide up to 100mA outputYj5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 VOUTxYj5嘉泰姆
by internal switchover MOSFET. It can save power dissipation. The chargeYj5嘉泰姆
pump circuit with 250kHz clock driver uses VOUT1 as its power supply to generate ap-proximately 15V DC voltage.Yj5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),Yj5嘉泰姆
the CXSD62114 provides very high efficiency over light to heavy loadsYj5嘉泰姆

with loading-modulated switching frequencies. The Forced-PWM Mode works nearly at constant frequency for low-noise requirements. The unique ultrasonicYj5嘉泰姆
mode maintains the switching frequency above 25kHz, which eliminates noise in audio application.The CXSD62114A/D has individual enable controls forYj5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.Yj5嘉泰姆
二.产品特点(Features)Yj5嘉泰姆

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Wide Input voltage Range from 5.5V to 25VYj5嘉泰姆
Provide 5 Independent Outputs with ±1.0% Accu-racy Over-TemperatureYj5嘉泰姆
PWM1 Controller with Adjustable (2V to 5.5V) Out-putYj5嘉泰姆
- PWM2 Controller with Adjustable (2V to 5.5V) Out-putYj5嘉泰姆
100mA Low Dropout Regulator (LDO5) with Fixed 5V OutputYj5嘉泰姆
- 100mA Low Dropout Regulator (LDO3) with Fixed 3.3V OutputYj5嘉泰姆
250kHz Clock Signal for 15V Charge Pump (Used PWM1 as Its Power Supply)Yj5嘉泰姆
Excellent Line/Load Regulations about±1.5% overYj5嘉泰姆
temperature range at PWM ChannelsYj5嘉泰姆
Low Consumption in Standby ModeYj5嘉泰姆
2Cells Input Battery SupportYj5嘉泰姆
Built in POR Control Scheme ImplementedYj5嘉泰姆
Constant On-Time Control SchemeYj5嘉泰姆
Built in Soft Start for PWM Outputs and Soft StopYj5嘉泰姆
for PWM Outputs and LDO OutputsYj5嘉泰姆
Integrated Bootstrap Forward P-CH MOSFETYj5嘉泰姆
High Efficiency over Light to Full Load Range (PWMs)Yj5嘉泰姆
Built in Power Good Indicators (PWMs)Yj5嘉泰姆
60% Under-Voltage and 115% Over-Voltage Protec-tions (PWM)Yj5嘉泰姆
Adjustable Current-Limit Protection (PWMs)Yj5嘉泰姆
- Using Sense Low-Side MOSFET’s RDS(ON)Yj5嘉泰姆
Over-Temperature ProtectionYj5嘉泰姆
3mmx3mm Thin QFN-20 (TQFN3x3-20) packageYj5嘉泰姆
Lead Free and Green Device Available (RoHS Compliant)Yj5嘉泰姆
三,应用范围 (Applications)Yj5嘉泰姆

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Notebook and Sub-Notebook ComputersYj5嘉泰姆
Portable DevicesYj5嘉泰姆
DDR1, DDR2, and DDR3 Power SuppliesYj5嘉泰姆
3-Cell and 4-Cell Li+ Battery-Powered DevicesYj5嘉泰姆
Graphic CardsYj5嘉泰姆
Game ConsolesYj5嘉泰姆
TelecommunicationsYj5嘉泰姆
四.下载产品资料PDF文档 Yj5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！Yj5嘉泰姆

 Yj5嘉泰姆

五,产品封装图 (Package)Yj5嘉泰姆

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Yj5嘉泰姆
Yj5嘉泰姆

六.电路原理图Yj5嘉泰姆

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Yj5嘉泰姆

七,功能概述Yj5嘉泰姆

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the node.Yj5嘉泰姆
Decoupling capacitor, the resistor dividers, boot capacitors, and current-limit stetting resistor shouldYj5嘉泰姆
be close to their pins. (For example, place the decoupling ceramic capacitor near the drain of theYj5嘉泰姆
high-side MOSFET as close as possible. The bulk capacitors are also placednear the drain).Yj5嘉泰姆
The input capacitor should be near the drain of the upper MOSFET; the high quality ceramic decouplingYj5嘉泰姆
capacitor can be put close to the VCC and GND pins;the output capacitor should be near the loads. TheYj5嘉泰姆
input capacitor GND should be close to the output ca-pacitor GND and the lower MOSFET GND.Yj5嘉泰姆
The drain of the MOSFETs (V IN and PHASEx nodes)should be a large plane for heat sinking. And PHASExYj5嘉泰姆
pin traces are also the return path for UGATEx. Con-nect these pins to the respective converter’s upperYj5嘉泰姆
MOSFET source.Yj5嘉泰姆
The controller used ripple mode control. Build the re-sistor divider close to the FB1 pin so that the highYj5嘉泰姆
impedance trace is shorter when the output voltage is in ad justable mode. And the FB1 pin traces can’t beYj5嘉泰姆
close to the switching signal traces (UGATEx, LGATEx,BOOTx, and PHASEx).Yj5嘉泰姆
The PGND trace should be a separate trace, and in-dependently go to the source of the low-side MOSFETsYj5嘉泰姆
for current-limit accuracy.Yj5嘉泰姆
八,相关产品                更多同类产品......

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Switching Regulator >   Buck ControllerYj5嘉泰姆
Part_No Yj5嘉泰姆	Package Yj5嘉泰姆	ArchiYj5嘉泰姆 tectuYj5嘉泰姆	PhaseYj5嘉泰姆	No.ofYj5嘉泰姆 PWMYj5嘉泰姆 OutputYj5嘉泰姆	Output Yj5嘉泰姆 CurrentYj5嘉泰姆 (A) Yj5嘉泰姆	InputYj5嘉泰姆 Voltage (V) Yj5嘉泰姆		ReferenceYj5嘉泰姆 VoltageYj5嘉泰姆 (V) Yj5嘉泰姆	Bias Yj5嘉泰姆 VoltageYj5嘉泰姆 (V) Yj5嘉泰姆	QuiescentYj5嘉泰姆 CurrentYj5嘉泰姆 (uA) Yj5嘉泰姆
						minYj5嘉泰姆	maxYj5嘉泰姆
CXSD6273Yj5嘉泰姆	SOP-14Yj5嘉泰姆 QSOP-16Yj5嘉泰姆 QFN4x4-16Yj5嘉泰姆	VM    Yj5嘉泰姆	1   Yj5嘉泰姆	1     Yj5嘉泰姆	30Yj5嘉泰姆	2.9    Yj5嘉泰姆	13.2Yj5嘉泰姆	0.9Yj5嘉泰姆	12     Yj5嘉泰姆	8000Yj5嘉泰姆
CXSD6274Yj5嘉泰姆	SOP-8Yj5嘉泰姆	VM   Yj5嘉泰姆	1Yj5嘉泰姆	1Yj5嘉泰姆	20Yj5嘉泰姆	2.9  Yj5嘉泰姆	13.2 Yj5嘉泰姆	0.8Yj5嘉泰姆	12Yj5嘉泰姆	5000Yj5嘉泰姆
CXSD6274CYj5嘉泰姆	SOP-8Yj5嘉泰姆	VMYj5嘉泰姆	1Yj5嘉泰姆	1Yj5嘉泰姆	20Yj5嘉泰姆	2.9Yj5嘉泰姆	13.2Yj5嘉泰姆	0.8Yj5嘉泰姆	12Yj5嘉泰姆	5000Yj5嘉泰姆
CXSD6275Yj5嘉泰姆	QFN4x4-24Yj5嘉泰姆	VMYj5嘉泰姆	2Yj5嘉泰姆	1Yj5嘉泰姆	60Yj5嘉泰姆	3.1Yj5嘉泰姆	13.2Yj5嘉泰姆	0.6Yj5嘉泰姆	12Yj5嘉泰姆	5000Yj5嘉泰姆
CXSD6276Yj5嘉泰姆	SOP-8Yj5嘉泰姆	VMYj5嘉泰姆	1Yj5嘉泰姆	1Yj5嘉泰姆	20Yj5嘉泰姆	2.2Yj5嘉泰姆	13.2Yj5嘉泰姆	0.8Yj5嘉泰姆	5~12Yj5嘉泰姆	2100Yj5嘉泰姆
CXSD6276AYj5嘉泰姆	SOP-8Yj5嘉泰姆	VMYj5嘉泰姆	1Yj5嘉泰姆	1Yj5嘉泰姆	20Yj5嘉泰姆	2.2Yj5嘉泰姆	13.2Yj5嘉泰姆	0.8Yj5嘉泰姆	5~12Yj5嘉泰姆	2100Yj5嘉泰姆
CXSD6277/A/BYj5嘉泰姆	SOP8|TSSOP8Yj5嘉泰姆	VMYj5嘉泰姆	1Yj5嘉泰姆	1Yj5嘉泰姆	5Yj5嘉泰姆	5Yj5嘉泰姆	13.2Yj5嘉泰姆	1.25|0.8Yj5嘉泰姆	5~12Yj5嘉泰姆	3000Yj5嘉泰姆
CXSD6278Yj5嘉泰姆	SOP-8Yj5嘉泰姆	VMYj5嘉泰姆	1Yj5嘉泰姆	1Yj5嘉泰姆	10Yj5嘉泰姆	3.3Yj5嘉泰姆	5.5Yj5嘉泰姆	0.8Yj5嘉泰姆	5Yj5嘉泰姆	2100Yj5嘉泰姆
CXSD6279BYj5嘉泰姆	SOP-14Yj5嘉泰姆	VM   Yj5嘉泰姆	1Yj5嘉泰姆	1Yj5嘉泰姆	10Yj5嘉泰姆	5Yj5嘉泰姆	13.2Yj5嘉泰姆	0.8Yj5嘉泰姆	12Yj5嘉泰姆	2000Yj5嘉泰姆
CXSD6280Yj5嘉泰姆	TSSOP-24Yj5嘉泰姆 |QFN5x5-32Yj5嘉泰姆	VMYj5嘉泰姆	1Yj5嘉泰姆	2Yj5嘉泰姆	20Yj5嘉泰姆	5Yj5嘉泰姆	13.2Yj5嘉泰姆	0.6Yj5嘉泰姆	5~12Yj5嘉泰姆	4000Yj5嘉泰姆
CXSD6281NYj5嘉泰姆	SOP14Yj5嘉泰姆 QSOP16Yj5嘉泰姆 QFN-16Yj5嘉泰姆	VMYj5嘉泰姆	1Yj5嘉泰姆	1Yj5嘉泰姆	30Yj5嘉泰姆	2.9Yj5嘉泰姆	13.2Yj5嘉泰姆	0.9Yj5嘉泰姆	12Yj5嘉泰姆	4000Yj5嘉泰姆
CXSD6282Yj5嘉泰姆	SOP-14Yj5嘉泰姆	VMYj5嘉泰姆	1Yj5嘉泰姆	1Yj5嘉泰姆	30Yj5嘉泰姆	2.2Yj5嘉泰姆	13.2Yj5嘉泰姆	0.6Yj5嘉泰姆	12Yj5嘉泰姆	5000Yj5嘉泰姆
CXSD6282AYj5嘉泰姆	SOP-14Yj5嘉泰姆	VMYj5嘉泰姆	1Yj5嘉泰姆	1Yj5嘉泰姆	30Yj5嘉泰姆	2.2Yj5嘉泰姆	13.2Yj5嘉泰姆	0.6Yj5嘉泰姆	12Yj5嘉泰姆	5000Yj5嘉泰姆
CXSD6283Yj5嘉泰姆	SOP-14Yj5嘉泰姆	VMYj5嘉泰姆	1Yj5嘉泰姆	1Yj5嘉泰姆	25Yj5嘉泰姆	2.2Yj5嘉泰姆	13.2Yj5嘉泰姆	0.8Yj5嘉泰姆	12Yj5嘉泰姆	5000Yj5嘉泰姆
CXSD6284/AYj5嘉泰姆	LQFP7x7 48Yj5嘉泰姆 TQFN7x7-48Yj5嘉泰姆	VMYj5嘉泰姆	1Yj5嘉泰姆	6Yj5嘉泰姆	0.015Yj5嘉泰姆	1.4Yj5嘉泰姆	6.5Yj5嘉泰姆	-Yj5嘉泰姆	5Yj5嘉泰姆	1800Yj5嘉泰姆
CXSD6285Yj5嘉泰姆	TSSOP-24PYj5嘉泰姆	VMYj5嘉泰姆	1Yj5嘉泰姆	2Yj5嘉泰姆	20Yj5嘉泰姆	2.97Yj5嘉泰姆	5.5Yj5嘉泰姆	0.8Yj5嘉泰姆	5~12Yj5嘉泰姆	5000Yj5嘉泰姆
CXSD6286Yj5嘉泰姆	SOP-14Yj5嘉泰姆	VMYj5嘉泰姆	1Yj5嘉泰姆	1Yj5嘉泰姆	10Yj5嘉泰姆	5Yj5嘉泰姆	13.2Yj5嘉泰姆	0.8Yj5嘉泰姆	12Yj5嘉泰姆	3000Yj5嘉泰姆
CXSD6287Yj5嘉泰姆	SOP-8-P|DIP-8Yj5嘉泰姆	VMYj5嘉泰姆	1Yj5嘉泰姆	1Yj5嘉泰姆	30Yj5嘉泰姆	2.9Yj5嘉泰姆	13.2Yj5嘉泰姆	1.2Yj5嘉泰姆	12Yj5嘉泰姆	3000Yj5嘉泰姆
CXSD6288Yj5嘉泰姆	SSOP28Yj5嘉泰姆 QFN4x4-24Yj5嘉泰姆	VMYj5嘉泰姆	1Yj5嘉泰姆	2Yj5嘉泰姆	20Yj5嘉泰姆	5Yj5嘉泰姆	24Yj5嘉泰姆	0.9Yj5嘉泰姆	5Yj5嘉泰姆	1200Yj5嘉泰姆
CXSD6289Yj5嘉泰姆	SOP-20Yj5嘉泰姆	VMYj5嘉泰姆	1Yj5嘉泰姆	2Yj5嘉泰姆	20Yj5嘉泰姆	2.2Yj5嘉泰姆	13.2Yj5嘉泰姆	0.6Yj5嘉泰姆	5~12Yj5嘉泰姆	4000Yj5嘉泰姆
Yj5嘉泰姆

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