目录2W8嘉泰姆

1.产品概述                       2.产品特点2W8嘉泰姆
3.应用范围                       4.下载产品资料PDF文档 2W8嘉泰姆
5.产品封装图                     6.电路原理图                   2W8嘉泰姆
7.功能概述                        8.相关产品2W8嘉泰姆

一,产品概述(General Description)    2W8嘉泰姆

---

  The CXSD62114 integrates dual step-down, constant-on-time,2W8嘉泰姆

synchronous PWM controllers (that drives dual N-channel MOSFETs for2W8嘉泰姆
each channel) and two low drop-out regulators as well as various protections2W8嘉泰姆
into a chip.The PWM controllers step down high voltage of a battery2W8嘉泰姆
to generate low-voltage for NB applications. The output of PWM1 and2W8嘉泰姆
PWM2 can be adjusted from 2V to 5.5V by setting a resistive voltage-divider2W8嘉泰姆
from VOUTx to GND.The linear regulators provide 5V and 3.3V output for2W8嘉泰姆
standby power supply. The linear regulators provide up to 100mA output2W8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 VOUTx2W8嘉泰姆
by internal switchover MOSFET. It can save power dissipation. The charge2W8嘉泰姆
pump circuit with 250kHz clock driver uses VOUT1 as its power supply to generate ap-proximately 15V DC voltage.2W8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),2W8嘉泰姆
the CXSD62114 provides very high efficiency over light to heavy loads2W8嘉泰姆

with loading-modulated switching frequencies. The Forced-PWM Mode works nearly at constant frequency for low-noise requirements. The unique ultrasonic2W8嘉泰姆
mode maintains the switching frequency above 25kHz, which eliminates noise in audio application.The CXSD62114A/D has individual enable controls for2W8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.2W8嘉泰姆
二.产品特点(Features)2W8嘉泰姆

---

Wide Input voltage Range from 5.5V to 25V2W8嘉泰姆
Provide 5 Independent Outputs with ±1.0% Accu-racy Over-Temperature2W8嘉泰姆
PWM1 Controller with Adjustable (2V to 5.5V) Out-put2W8嘉泰姆
- PWM2 Controller with Adjustable (2V to 5.5V) Out-put2W8嘉泰姆
100mA Low Dropout Regulator (LDO5) with Fixed 5V Output2W8嘉泰姆
- 100mA Low Dropout Regulator (LDO3) with Fixed 3.3V Output2W8嘉泰姆
250kHz Clock Signal for 15V Charge Pump (Used PWM1 as Its Power Supply)2W8嘉泰姆
Excellent Line/Load Regulations about±1.5% over2W8嘉泰姆
temperature range at PWM Channels2W8嘉泰姆
Low Consumption in Standby Mode2W8嘉泰姆
2Cells Input Battery Support2W8嘉泰姆
Built in POR Control Scheme Implemented2W8嘉泰姆
Constant On-Time Control Scheme2W8嘉泰姆
Built in Soft Start for PWM Outputs and Soft Stop2W8嘉泰姆
for PWM Outputs and LDO Outputs2W8嘉泰姆
Integrated Bootstrap Forward P-CH MOSFET2W8嘉泰姆
High Efficiency over Light to Full Load Range (PWMs)2W8嘉泰姆
Built in Power Good Indicators (PWMs)2W8嘉泰姆
60% Under-Voltage and 115% Over-Voltage Protec-tions (PWM)2W8嘉泰姆
Adjustable Current-Limit Protection (PWMs)2W8嘉泰姆
- Using Sense Low-Side MOSFET’s RDS(ON)2W8嘉泰姆
Over-Temperature Protection2W8嘉泰姆
3mmx3mm Thin QFN-20 (TQFN3x3-20) package2W8嘉泰姆
Lead Free and Green Device Available (RoHS Compliant)2W8嘉泰姆
三,应用范围 (Applications)2W8嘉泰姆

---

Notebook and Sub-Notebook Computers2W8嘉泰姆
Portable Devices2W8嘉泰姆
DDR1, DDR2, and DDR3 Power Supplies2W8嘉泰姆
3-Cell and 4-Cell Li+ Battery-Powered Devices2W8嘉泰姆
Graphic Cards2W8嘉泰姆
Game Consoles2W8嘉泰姆
Telecommunications2W8嘉泰姆
四.下载产品资料PDF文档 2W8嘉泰姆

---

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！2W8嘉泰姆

 2W8嘉泰姆

五,产品封装图 (Package)2W8嘉泰姆

---

2W8嘉泰姆
2W8嘉泰姆

六.电路原理图2W8嘉泰姆

---

2W8嘉泰姆

七,功能概述2W8嘉泰姆

---

the node.2W8嘉泰姆
Decoupling capacitor, the resistor dividers, boot capacitors, and current-limit stetting resistor should2W8嘉泰姆
be close to their pins. (For example, place the decoupling ceramic capacitor near the drain of the2W8嘉泰姆
high-side MOSFET as close as possible. The bulk capacitors are also placednear the drain).2W8嘉泰姆
The input capacitor should be near the drain of the upper MOSFET; the high quality ceramic decoupling2W8嘉泰姆
capacitor can be put close to the VCC and GND pins;the output capacitor should be near the loads. The2W8嘉泰姆
input capacitor GND should be close to the output ca-pacitor GND and the lower MOSFET GND.2W8嘉泰姆
The drain of the MOSFETs (V IN and PHASEx nodes)should be a large plane for heat sinking. And PHASEx2W8嘉泰姆
pin traces are also the return path for UGATEx. Con-nect these pins to the respective converter’s upper2W8嘉泰姆
MOSFET source.2W8嘉泰姆
The controller used ripple mode control. Build the re-sistor divider close to the FB1 pin so that the high2W8嘉泰姆
impedance trace is shorter when the output voltage is in ad justable mode. And the FB1 pin traces can’t be2W8嘉泰姆
close to the switching signal traces (UGATEx, LGATEx,BOOTx, and PHASEx).2W8嘉泰姆
The PGND trace should be a separate trace, and in-dependently go to the source of the low-side MOSFETs2W8嘉泰姆
for current-limit accuracy.2W8嘉泰姆
八,相关产品                更多同类产品......

---

Switching Regulator >   Buck Controller2W8嘉泰姆
Part_No 2W8嘉泰姆	Package 2W8嘉泰姆	Archi2W8嘉泰姆 tectu2W8嘉泰姆	Phase2W8嘉泰姆	No.of2W8嘉泰姆 PWM2W8嘉泰姆 Output2W8嘉泰姆	Output 2W8嘉泰姆 Current2W8嘉泰姆 (A) 2W8嘉泰姆	Input2W8嘉泰姆 Voltage (V) 2W8嘉泰姆		Reference2W8嘉泰姆 Voltage2W8嘉泰姆 (V) 2W8嘉泰姆	Bias 2W8嘉泰姆 Voltage2W8嘉泰姆 (V) 2W8嘉泰姆	Quiescent2W8嘉泰姆 Current2W8嘉泰姆 (uA) 2W8嘉泰姆
						min2W8嘉泰姆	max2W8嘉泰姆
CXSD62732W8嘉泰姆	SOP-142W8嘉泰姆 QSOP-162W8嘉泰姆 QFN4x4-162W8嘉泰姆	VM    2W8嘉泰姆	1   2W8嘉泰姆	1     2W8嘉泰姆	302W8嘉泰姆	2.9    2W8嘉泰姆	13.22W8嘉泰姆	0.92W8嘉泰姆	12     2W8嘉泰姆	80002W8嘉泰姆
CXSD62742W8嘉泰姆	SOP-82W8嘉泰姆	VM   2W8嘉泰姆	12W8嘉泰姆	12W8嘉泰姆	202W8嘉泰姆	2.9  2W8嘉泰姆	13.2 2W8嘉泰姆	0.82W8嘉泰姆	122W8嘉泰姆	50002W8嘉泰姆
CXSD6274C2W8嘉泰姆	SOP-82W8嘉泰姆	VM2W8嘉泰姆	12W8嘉泰姆	12W8嘉泰姆	202W8嘉泰姆	2.92W8嘉泰姆	13.22W8嘉泰姆	0.82W8嘉泰姆	122W8嘉泰姆	50002W8嘉泰姆
CXSD62752W8嘉泰姆	QFN4x4-242W8嘉泰姆	VM2W8嘉泰姆	22W8嘉泰姆	12W8嘉泰姆	602W8嘉泰姆	3.12W8嘉泰姆	13.22W8嘉泰姆	0.62W8嘉泰姆	122W8嘉泰姆	50002W8嘉泰姆
CXSD62762W8嘉泰姆	SOP-82W8嘉泰姆	VM2W8嘉泰姆	12W8嘉泰姆	12W8嘉泰姆	202W8嘉泰姆	2.22W8嘉泰姆	13.22W8嘉泰姆	0.82W8嘉泰姆	5~122W8嘉泰姆	21002W8嘉泰姆
CXSD6276A2W8嘉泰姆	SOP-82W8嘉泰姆	VM2W8嘉泰姆	12W8嘉泰姆	12W8嘉泰姆	202W8嘉泰姆	2.22W8嘉泰姆	13.22W8嘉泰姆	0.82W8嘉泰姆	5~122W8嘉泰姆	21002W8嘉泰姆
CXSD6277/A/B2W8嘉泰姆	SOP8|TSSOP82W8嘉泰姆	VM2W8嘉泰姆	12W8嘉泰姆	12W8嘉泰姆	52W8嘉泰姆	52W8嘉泰姆	13.22W8嘉泰姆	1.25|0.82W8嘉泰姆	5~122W8嘉泰姆	30002W8嘉泰姆
CXSD62782W8嘉泰姆	SOP-82W8嘉泰姆	VM2W8嘉泰姆	12W8嘉泰姆	12W8嘉泰姆	102W8嘉泰姆	3.32W8嘉泰姆	5.52W8嘉泰姆	0.82W8嘉泰姆	52W8嘉泰姆	21002W8嘉泰姆
CXSD6279B2W8嘉泰姆	SOP-142W8嘉泰姆	VM   2W8嘉泰姆	12W8嘉泰姆	12W8嘉泰姆	102W8嘉泰姆	52W8嘉泰姆	13.22W8嘉泰姆	0.82W8嘉泰姆	122W8嘉泰姆	20002W8嘉泰姆
CXSD62802W8嘉泰姆	TSSOP-242W8嘉泰姆 |QFN5x5-322W8嘉泰姆	VM2W8嘉泰姆	12W8嘉泰姆	22W8嘉泰姆	202W8嘉泰姆	52W8嘉泰姆	13.22W8嘉泰姆	0.62W8嘉泰姆	5~122W8嘉泰姆	40002W8嘉泰姆
CXSD6281N2W8嘉泰姆	SOP142W8嘉泰姆 QSOP162W8嘉泰姆 QFN-162W8嘉泰姆	VM2W8嘉泰姆	12W8嘉泰姆	12W8嘉泰姆	302W8嘉泰姆	2.92W8嘉泰姆	13.22W8嘉泰姆	0.92W8嘉泰姆	122W8嘉泰姆	40002W8嘉泰姆
CXSD62822W8嘉泰姆	SOP-142W8嘉泰姆	VM2W8嘉泰姆	12W8嘉泰姆	12W8嘉泰姆	302W8嘉泰姆	2.22W8嘉泰姆	13.22W8嘉泰姆	0.62W8嘉泰姆	122W8嘉泰姆	50002W8嘉泰姆
CXSD6282A2W8嘉泰姆	SOP-142W8嘉泰姆	VM2W8嘉泰姆	12W8嘉泰姆	12W8嘉泰姆	302W8嘉泰姆	2.22W8嘉泰姆	13.22W8嘉泰姆	0.62W8嘉泰姆	122W8嘉泰姆	50002W8嘉泰姆
CXSD62832W8嘉泰姆	SOP-142W8嘉泰姆	VM2W8嘉泰姆	12W8嘉泰姆	12W8嘉泰姆	252W8嘉泰姆	2.22W8嘉泰姆	13.22W8嘉泰姆	0.82W8嘉泰姆	122W8嘉泰姆	50002W8嘉泰姆
CXSD6284/A2W8嘉泰姆	LQFP7x7 482W8嘉泰姆 TQFN7x7-482W8嘉泰姆	VM2W8嘉泰姆	12W8嘉泰姆	62W8嘉泰姆	0.0152W8嘉泰姆	1.42W8嘉泰姆	6.52W8嘉泰姆	-2W8嘉泰姆	52W8嘉泰姆	18002W8嘉泰姆
CXSD62852W8嘉泰姆	TSSOP-24P2W8嘉泰姆	VM2W8嘉泰姆	12W8嘉泰姆	22W8嘉泰姆	202W8嘉泰姆	2.972W8嘉泰姆	5.52W8嘉泰姆	0.82W8嘉泰姆	5~122W8嘉泰姆	50002W8嘉泰姆
CXSD62862W8嘉泰姆	SOP-142W8嘉泰姆	VM2W8嘉泰姆	12W8嘉泰姆	12W8嘉泰姆	102W8嘉泰姆	52W8嘉泰姆	13.22W8嘉泰姆	0.82W8嘉泰姆	122W8嘉泰姆	30002W8嘉泰姆
CXSD62872W8嘉泰姆	SOP-8-P|DIP-82W8嘉泰姆	VM2W8嘉泰姆	12W8嘉泰姆	12W8嘉泰姆	302W8嘉泰姆	2.92W8嘉泰姆	13.22W8嘉泰姆	1.22W8嘉泰姆	122W8嘉泰姆	30002W8嘉泰姆
CXSD62882W8嘉泰姆	SSOP282W8嘉泰姆 QFN4x4-242W8嘉泰姆	VM2W8嘉泰姆	12W8嘉泰姆	22W8嘉泰姆	202W8嘉泰姆	52W8嘉泰姆	242W8嘉泰姆	0.92W8嘉泰姆	52W8嘉泰姆	12002W8嘉泰姆
CXSD62892W8嘉泰姆	SOP-202W8嘉泰姆	VM2W8嘉泰姆	12W8嘉泰姆	22W8嘉泰姆	202W8嘉泰姆	2.22W8嘉泰姆	13.22W8嘉泰姆	0.62W8嘉泰姆	5~122W8嘉泰姆	40002W8嘉泰姆
2W8嘉泰姆

共有条评论 用户名: 密码: 验证码: 匿名发表