目录fgZ嘉泰姆

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

一,产品概述(General Description)    fgZ嘉泰姆

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

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

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

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

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Notebook and Sub-Notebook ComputersfgZ嘉泰姆
Portable DevicesfgZ嘉泰姆
DDR1, DDR2, and DDR3 Power SuppliesfgZ嘉泰姆
3-Cell and 4-Cell Li+ Battery-Powered DevicesfgZ嘉泰姆
Graphic CardsfgZ嘉泰姆
Game ConsolesfgZ嘉泰姆
TelecommunicationsfgZ嘉泰姆
四.下载产品资料PDF文档 fgZ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！fgZ嘉泰姆

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五,产品封装图 (Package)fgZ嘉泰姆

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六.电路原理图fgZ嘉泰姆

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七,功能概述fgZ嘉泰姆

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

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Switching Regulator >   Buck ControllerfgZ嘉泰姆
Part_No fgZ嘉泰姆	Package fgZ嘉泰姆	ArchifgZ嘉泰姆 tectufgZ嘉泰姆	PhasefgZ嘉泰姆	No.offgZ嘉泰姆 PWMfgZ嘉泰姆 OutputfgZ嘉泰姆	Output fgZ嘉泰姆 CurrentfgZ嘉泰姆 (A) fgZ嘉泰姆	InputfgZ嘉泰姆 Voltage (V) fgZ嘉泰姆		ReferencefgZ嘉泰姆 VoltagefgZ嘉泰姆 (V) fgZ嘉泰姆	Bias fgZ嘉泰姆 VoltagefgZ嘉泰姆 (V) fgZ嘉泰姆	QuiescentfgZ嘉泰姆 CurrentfgZ嘉泰姆 (uA) fgZ嘉泰姆
						minfgZ嘉泰姆	maxfgZ嘉泰姆
CXSD6273fgZ嘉泰姆	SOP-14fgZ嘉泰姆 QSOP-16fgZ嘉泰姆 QFN4x4-16fgZ嘉泰姆	VM    fgZ嘉泰姆	1   fgZ嘉泰姆	1     fgZ嘉泰姆	30fgZ嘉泰姆	2.9    fgZ嘉泰姆	13.2fgZ嘉泰姆	0.9fgZ嘉泰姆	12     fgZ嘉泰姆	8000fgZ嘉泰姆
CXSD6274fgZ嘉泰姆	SOP-8fgZ嘉泰姆	VM   fgZ嘉泰姆	1fgZ嘉泰姆	1fgZ嘉泰姆	20fgZ嘉泰姆	2.9  fgZ嘉泰姆	13.2 fgZ嘉泰姆	0.8fgZ嘉泰姆	12fgZ嘉泰姆	5000fgZ嘉泰姆
CXSD6274CfgZ嘉泰姆	SOP-8fgZ嘉泰姆	VMfgZ嘉泰姆	1fgZ嘉泰姆	1fgZ嘉泰姆	20fgZ嘉泰姆	2.9fgZ嘉泰姆	13.2fgZ嘉泰姆	0.8fgZ嘉泰姆	12fgZ嘉泰姆	5000fgZ嘉泰姆
CXSD6275fgZ嘉泰姆	QFN4x4-24fgZ嘉泰姆	VMfgZ嘉泰姆	2fgZ嘉泰姆	1fgZ嘉泰姆	60fgZ嘉泰姆	3.1fgZ嘉泰姆	13.2fgZ嘉泰姆	0.6fgZ嘉泰姆	12fgZ嘉泰姆	5000fgZ嘉泰姆
CXSD6276fgZ嘉泰姆	SOP-8fgZ嘉泰姆	VMfgZ嘉泰姆	1fgZ嘉泰姆	1fgZ嘉泰姆	20fgZ嘉泰姆	2.2fgZ嘉泰姆	13.2fgZ嘉泰姆	0.8fgZ嘉泰姆	5~12fgZ嘉泰姆	2100fgZ嘉泰姆
CXSD6276AfgZ嘉泰姆	SOP-8fgZ嘉泰姆	VMfgZ嘉泰姆	1fgZ嘉泰姆	1fgZ嘉泰姆	20fgZ嘉泰姆	2.2fgZ嘉泰姆	13.2fgZ嘉泰姆	0.8fgZ嘉泰姆	5~12fgZ嘉泰姆	2100fgZ嘉泰姆
CXSD6277/A/BfgZ嘉泰姆	SOP8|TSSOP8fgZ嘉泰姆	VMfgZ嘉泰姆	1fgZ嘉泰姆	1fgZ嘉泰姆	5fgZ嘉泰姆	5fgZ嘉泰姆	13.2fgZ嘉泰姆	1.25|0.8fgZ嘉泰姆	5~12fgZ嘉泰姆	3000fgZ嘉泰姆
CXSD6278fgZ嘉泰姆	SOP-8fgZ嘉泰姆	VMfgZ嘉泰姆	1fgZ嘉泰姆	1fgZ嘉泰姆	10fgZ嘉泰姆	3.3fgZ嘉泰姆	5.5fgZ嘉泰姆	0.8fgZ嘉泰姆	5fgZ嘉泰姆	2100fgZ嘉泰姆
CXSD6279BfgZ嘉泰姆	SOP-14fgZ嘉泰姆	VM   fgZ嘉泰姆	1fgZ嘉泰姆	1fgZ嘉泰姆	10fgZ嘉泰姆	5fgZ嘉泰姆	13.2fgZ嘉泰姆	0.8fgZ嘉泰姆	12fgZ嘉泰姆	2000fgZ嘉泰姆
CXSD6280fgZ嘉泰姆	TSSOP-24fgZ嘉泰姆 |QFN5x5-32fgZ嘉泰姆	VMfgZ嘉泰姆	1fgZ嘉泰姆	2fgZ嘉泰姆	20fgZ嘉泰姆	5fgZ嘉泰姆	13.2fgZ嘉泰姆	0.6fgZ嘉泰姆	5~12fgZ嘉泰姆	4000fgZ嘉泰姆
CXSD6281NfgZ嘉泰姆	SOP14fgZ嘉泰姆 QSOP16fgZ嘉泰姆 QFN-16fgZ嘉泰姆	VMfgZ嘉泰姆	1fgZ嘉泰姆	1fgZ嘉泰姆	30fgZ嘉泰姆	2.9fgZ嘉泰姆	13.2fgZ嘉泰姆	0.9fgZ嘉泰姆	12fgZ嘉泰姆	4000fgZ嘉泰姆
CXSD6282fgZ嘉泰姆	SOP-14fgZ嘉泰姆	VMfgZ嘉泰姆	1fgZ嘉泰姆	1fgZ嘉泰姆	30fgZ嘉泰姆	2.2fgZ嘉泰姆	13.2fgZ嘉泰姆	0.6fgZ嘉泰姆	12fgZ嘉泰姆	5000fgZ嘉泰姆
CXSD6282AfgZ嘉泰姆	SOP-14fgZ嘉泰姆	VMfgZ嘉泰姆	1fgZ嘉泰姆	1fgZ嘉泰姆	30fgZ嘉泰姆	2.2fgZ嘉泰姆	13.2fgZ嘉泰姆	0.6fgZ嘉泰姆	12fgZ嘉泰姆	5000fgZ嘉泰姆
CXSD6283fgZ嘉泰姆	SOP-14fgZ嘉泰姆	VMfgZ嘉泰姆	1fgZ嘉泰姆	1fgZ嘉泰姆	25fgZ嘉泰姆	2.2fgZ嘉泰姆	13.2fgZ嘉泰姆	0.8fgZ嘉泰姆	12fgZ嘉泰姆	5000fgZ嘉泰姆
CXSD6284/AfgZ嘉泰姆	LQFP7x7 48fgZ嘉泰姆 TQFN7x7-48fgZ嘉泰姆	VMfgZ嘉泰姆	1fgZ嘉泰姆	6fgZ嘉泰姆	0.015fgZ嘉泰姆	1.4fgZ嘉泰姆	6.5fgZ嘉泰姆	-fgZ嘉泰姆	5fgZ嘉泰姆	1800fgZ嘉泰姆
CXSD6285fgZ嘉泰姆	TSSOP-24PfgZ嘉泰姆	VMfgZ嘉泰姆	1fgZ嘉泰姆	2fgZ嘉泰姆	20fgZ嘉泰姆	2.97fgZ嘉泰姆	5.5fgZ嘉泰姆	0.8fgZ嘉泰姆	5~12fgZ嘉泰姆	5000fgZ嘉泰姆
CXSD6286fgZ嘉泰姆	SOP-14fgZ嘉泰姆	VMfgZ嘉泰姆	1fgZ嘉泰姆	1fgZ嘉泰姆	10fgZ嘉泰姆	5fgZ嘉泰姆	13.2fgZ嘉泰姆	0.8fgZ嘉泰姆	12fgZ嘉泰姆	3000fgZ嘉泰姆
CXSD6287fgZ嘉泰姆	SOP-8-P|DIP-8fgZ嘉泰姆	VMfgZ嘉泰姆	1fgZ嘉泰姆	1fgZ嘉泰姆	30fgZ嘉泰姆	2.9fgZ嘉泰姆	13.2fgZ嘉泰姆	1.2fgZ嘉泰姆	12fgZ嘉泰姆	3000fgZ嘉泰姆
CXSD6288fgZ嘉泰姆	SSOP28fgZ嘉泰姆 QFN4x4-24fgZ嘉泰姆	VMfgZ嘉泰姆	1fgZ嘉泰姆	2fgZ嘉泰姆	20fgZ嘉泰姆	5fgZ嘉泰姆	24fgZ嘉泰姆	0.9fgZ嘉泰姆	5fgZ嘉泰姆	1200fgZ嘉泰姆
CXSD6289fgZ嘉泰姆	SOP-20fgZ嘉泰姆	VMfgZ嘉泰姆	1fgZ嘉泰姆	2fgZ嘉泰姆	20fgZ嘉泰姆	2.2fgZ嘉泰姆	13.2fgZ嘉泰姆	0.6fgZ嘉泰姆	5~12fgZ嘉泰姆	4000fgZ嘉泰姆
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