目录rIp嘉泰姆

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

一,产品概述(General Description)    rIp嘉泰姆

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

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

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

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

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Notebook and Sub-Notebook ComputersrIp嘉泰姆
Portable DevicesrIp嘉泰姆
DDR1, DDR2, and DDR3 Power SuppliesrIp嘉泰姆
3-Cell and 4-Cell Li+ Battery-Powered DevicesrIp嘉泰姆
Graphic CardsrIp嘉泰姆
Game ConsolesrIp嘉泰姆
TelecommunicationsrIp嘉泰姆
四.下载产品资料PDF文档 rIp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！rIp嘉泰姆

 rIp嘉泰姆

五,产品封装图 (Package)rIp嘉泰姆

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rIp嘉泰姆
rIp嘉泰姆

六.电路原理图rIp嘉泰姆

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rIp嘉泰姆

七,功能概述rIp嘉泰姆

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

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Switching Regulator >   Buck ControllerrIp嘉泰姆
Part_No rIp嘉泰姆	Package rIp嘉泰姆	ArchirIp嘉泰姆 tecturIp嘉泰姆	PhaserIp嘉泰姆	No.ofrIp嘉泰姆 PWMrIp嘉泰姆 OutputrIp嘉泰姆	Output rIp嘉泰姆 CurrentrIp嘉泰姆 (A) rIp嘉泰姆	InputrIp嘉泰姆 Voltage (V) rIp嘉泰姆		ReferencerIp嘉泰姆 VoltagerIp嘉泰姆 (V) rIp嘉泰姆	Bias rIp嘉泰姆 VoltagerIp嘉泰姆 (V) rIp嘉泰姆	QuiescentrIp嘉泰姆 CurrentrIp嘉泰姆 (uA) rIp嘉泰姆
						minrIp嘉泰姆	maxrIp嘉泰姆
CXSD6273rIp嘉泰姆	SOP-14rIp嘉泰姆 QSOP-16rIp嘉泰姆 QFN4x4-16rIp嘉泰姆	VM    rIp嘉泰姆	1   rIp嘉泰姆	1     rIp嘉泰姆	30rIp嘉泰姆	2.9    rIp嘉泰姆	13.2rIp嘉泰姆	0.9rIp嘉泰姆	12     rIp嘉泰姆	8000rIp嘉泰姆
CXSD6274rIp嘉泰姆	SOP-8rIp嘉泰姆	VM   rIp嘉泰姆	1rIp嘉泰姆	1rIp嘉泰姆	20rIp嘉泰姆	2.9  rIp嘉泰姆	13.2 rIp嘉泰姆	0.8rIp嘉泰姆	12rIp嘉泰姆	5000rIp嘉泰姆
CXSD6274CrIp嘉泰姆	SOP-8rIp嘉泰姆	VMrIp嘉泰姆	1rIp嘉泰姆	1rIp嘉泰姆	20rIp嘉泰姆	2.9rIp嘉泰姆	13.2rIp嘉泰姆	0.8rIp嘉泰姆	12rIp嘉泰姆	5000rIp嘉泰姆
CXSD6275rIp嘉泰姆	QFN4x4-24rIp嘉泰姆	VMrIp嘉泰姆	2rIp嘉泰姆	1rIp嘉泰姆	60rIp嘉泰姆	3.1rIp嘉泰姆	13.2rIp嘉泰姆	0.6rIp嘉泰姆	12rIp嘉泰姆	5000rIp嘉泰姆
CXSD6276rIp嘉泰姆	SOP-8rIp嘉泰姆	VMrIp嘉泰姆	1rIp嘉泰姆	1rIp嘉泰姆	20rIp嘉泰姆	2.2rIp嘉泰姆	13.2rIp嘉泰姆	0.8rIp嘉泰姆	5~12rIp嘉泰姆	2100rIp嘉泰姆
CXSD6276ArIp嘉泰姆	SOP-8rIp嘉泰姆	VMrIp嘉泰姆	1rIp嘉泰姆	1rIp嘉泰姆	20rIp嘉泰姆	2.2rIp嘉泰姆	13.2rIp嘉泰姆	0.8rIp嘉泰姆	5~12rIp嘉泰姆	2100rIp嘉泰姆
CXSD6277/A/BrIp嘉泰姆	SOP8|TSSOP8rIp嘉泰姆	VMrIp嘉泰姆	1rIp嘉泰姆	1rIp嘉泰姆	5rIp嘉泰姆	5rIp嘉泰姆	13.2rIp嘉泰姆	1.25|0.8rIp嘉泰姆	5~12rIp嘉泰姆	3000rIp嘉泰姆
CXSD6278rIp嘉泰姆	SOP-8rIp嘉泰姆	VMrIp嘉泰姆	1rIp嘉泰姆	1rIp嘉泰姆	10rIp嘉泰姆	3.3rIp嘉泰姆	5.5rIp嘉泰姆	0.8rIp嘉泰姆	5rIp嘉泰姆	2100rIp嘉泰姆
CXSD6279BrIp嘉泰姆	SOP-14rIp嘉泰姆	VM   rIp嘉泰姆	1rIp嘉泰姆	1rIp嘉泰姆	10rIp嘉泰姆	5rIp嘉泰姆	13.2rIp嘉泰姆	0.8rIp嘉泰姆	12rIp嘉泰姆	2000rIp嘉泰姆
CXSD6280rIp嘉泰姆	TSSOP-24rIp嘉泰姆 |QFN5x5-32rIp嘉泰姆	VMrIp嘉泰姆	1rIp嘉泰姆	2rIp嘉泰姆	20rIp嘉泰姆	5rIp嘉泰姆	13.2rIp嘉泰姆	0.6rIp嘉泰姆	5~12rIp嘉泰姆	4000rIp嘉泰姆
CXSD6281NrIp嘉泰姆	SOP14rIp嘉泰姆 QSOP16rIp嘉泰姆 QFN-16rIp嘉泰姆	VMrIp嘉泰姆	1rIp嘉泰姆	1rIp嘉泰姆	30rIp嘉泰姆	2.9rIp嘉泰姆	13.2rIp嘉泰姆	0.9rIp嘉泰姆	12rIp嘉泰姆	4000rIp嘉泰姆
CXSD6282rIp嘉泰姆	SOP-14rIp嘉泰姆	VMrIp嘉泰姆	1rIp嘉泰姆	1rIp嘉泰姆	30rIp嘉泰姆	2.2rIp嘉泰姆	13.2rIp嘉泰姆	0.6rIp嘉泰姆	12rIp嘉泰姆	5000rIp嘉泰姆
CXSD6282ArIp嘉泰姆	SOP-14rIp嘉泰姆	VMrIp嘉泰姆	1rIp嘉泰姆	1rIp嘉泰姆	30rIp嘉泰姆	2.2rIp嘉泰姆	13.2rIp嘉泰姆	0.6rIp嘉泰姆	12rIp嘉泰姆	5000rIp嘉泰姆
CXSD6283rIp嘉泰姆	SOP-14rIp嘉泰姆	VMrIp嘉泰姆	1rIp嘉泰姆	1rIp嘉泰姆	25rIp嘉泰姆	2.2rIp嘉泰姆	13.2rIp嘉泰姆	0.8rIp嘉泰姆	12rIp嘉泰姆	5000rIp嘉泰姆
CXSD6284/ArIp嘉泰姆	LQFP7x7 48rIp嘉泰姆 TQFN7x7-48rIp嘉泰姆	VMrIp嘉泰姆	1rIp嘉泰姆	6rIp嘉泰姆	0.015rIp嘉泰姆	1.4rIp嘉泰姆	6.5rIp嘉泰姆	-rIp嘉泰姆	5rIp嘉泰姆	1800rIp嘉泰姆
CXSD6285rIp嘉泰姆	TSSOP-24PrIp嘉泰姆	VMrIp嘉泰姆	1rIp嘉泰姆	2rIp嘉泰姆	20rIp嘉泰姆	2.97rIp嘉泰姆	5.5rIp嘉泰姆	0.8rIp嘉泰姆	5~12rIp嘉泰姆	5000rIp嘉泰姆
CXSD6286rIp嘉泰姆	SOP-14rIp嘉泰姆	VMrIp嘉泰姆	1rIp嘉泰姆	1rIp嘉泰姆	10rIp嘉泰姆	5rIp嘉泰姆	13.2rIp嘉泰姆	0.8rIp嘉泰姆	12rIp嘉泰姆	3000rIp嘉泰姆
CXSD6287rIp嘉泰姆	SOP-8-P|DIP-8rIp嘉泰姆	VMrIp嘉泰姆	1rIp嘉泰姆	1rIp嘉泰姆	30rIp嘉泰姆	2.9rIp嘉泰姆	13.2rIp嘉泰姆	1.2rIp嘉泰姆	12rIp嘉泰姆	3000rIp嘉泰姆
CXSD6288rIp嘉泰姆	SSOP28rIp嘉泰姆 QFN4x4-24rIp嘉泰姆	VMrIp嘉泰姆	1rIp嘉泰姆	2rIp嘉泰姆	20rIp嘉泰姆	5rIp嘉泰姆	24rIp嘉泰姆	0.9rIp嘉泰姆	5rIp嘉泰姆	1200rIp嘉泰姆
CXSD6289rIp嘉泰姆	SOP-20rIp嘉泰姆	VMrIp嘉泰姆	1rIp嘉泰姆	2rIp嘉泰姆	20rIp嘉泰姆	2.2rIp嘉泰姆	13.2rIp嘉泰姆	0.6rIp嘉泰姆	5~12rIp嘉泰姆	4000rIp嘉泰姆
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