目录56s嘉泰姆

1.产品概述                       2.产品特点56s嘉泰姆
3.应用范围                       4.下载产品资料PDF文档 56s嘉泰姆
5.产品封装图                     6.电路原理图                   56s嘉泰姆
7.功能概述                        8.相关产品56s嘉泰姆

一,产品概述(General Description)    56s嘉泰姆

---

  The CXSD62114 integrates dual step-down, constant-on-time,56s嘉泰姆

synchronous PWM controllers (that drives dual N-channel MOSFETs for56s嘉泰姆
each channel) and two low drop-out regulators as well as various protections56s嘉泰姆
into a chip.The PWM controllers step down high voltage of a battery56s嘉泰姆
to generate low-voltage for NB applications. The output of PWM1 and56s嘉泰姆
PWM2 can be adjusted from 2V to 5.5V by setting a resistive voltage-divider56s嘉泰姆
from VOUTx to GND.The linear regulators provide 5V and 3.3V output for56s嘉泰姆
standby power supply. The linear regulators provide up to 100mA output56s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 VOUTx56s嘉泰姆
by internal switchover MOSFET. It can save power dissipation. The charge56s嘉泰姆
pump circuit with 250kHz clock driver uses VOUT1 as its power supply to generate ap-proximately 15V DC voltage.56s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),56s嘉泰姆
the CXSD62114 provides very high efficiency over light to heavy loads56s嘉泰姆

with loading-modulated switching frequencies. The Forced-PWM Mode works nearly at constant frequency for low-noise requirements. The unique ultrasonic56s嘉泰姆
mode maintains the switching frequency above 25kHz, which eliminates noise in audio application.The CXSD62114A/D has individual enable controls for56s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.56s嘉泰姆
二.产品特点(Features)56s嘉泰姆

---

Wide Input voltage Range from 5.5V to 25V56s嘉泰姆
Provide 5 Independent Outputs with ±1.0% Accu-racy Over-Temperature56s嘉泰姆
PWM1 Controller with Adjustable (2V to 5.5V) Out-put56s嘉泰姆
- PWM2 Controller with Adjustable (2V to 5.5V) Out-put56s嘉泰姆
100mA Low Dropout Regulator (LDO5) with Fixed 5V Output56s嘉泰姆
- 100mA Low Dropout Regulator (LDO3) with Fixed 3.3V Output56s嘉泰姆
250kHz Clock Signal for 15V Charge Pump (Used PWM1 as Its Power Supply)56s嘉泰姆
Excellent Line/Load Regulations about±1.5% over56s嘉泰姆
temperature range at PWM Channels56s嘉泰姆
Low Consumption in Standby Mode56s嘉泰姆
2Cells Input Battery Support56s嘉泰姆
Built in POR Control Scheme Implemented56s嘉泰姆
Constant On-Time Control Scheme56s嘉泰姆
Built in Soft Start for PWM Outputs and Soft Stop56s嘉泰姆
for PWM Outputs and LDO Outputs56s嘉泰姆
Integrated Bootstrap Forward P-CH MOSFET56s嘉泰姆
High Efficiency over Light to Full Load Range (PWMs)56s嘉泰姆
Built in Power Good Indicators (PWMs)56s嘉泰姆
60% Under-Voltage and 115% Over-Voltage Protec-tions (PWM)56s嘉泰姆
Adjustable Current-Limit Protection (PWMs)56s嘉泰姆
- Using Sense Low-Side MOSFET’s RDS(ON)56s嘉泰姆
Over-Temperature Protection56s嘉泰姆
3mmx3mm Thin QFN-20 (TQFN3x3-20) package56s嘉泰姆
Lead Free and Green Device Available (RoHS Compliant)56s嘉泰姆
三,应用范围 (Applications)56s嘉泰姆

---

Notebook and Sub-Notebook Computers56s嘉泰姆
Portable Devices56s嘉泰姆
DDR1, DDR2, and DDR3 Power Supplies56s嘉泰姆
3-Cell and 4-Cell Li+ Battery-Powered Devices56s嘉泰姆
Graphic Cards56s嘉泰姆
Game Consoles56s嘉泰姆
Telecommunications56s嘉泰姆
四.下载产品资料PDF文档 56s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！56s嘉泰姆

 56s嘉泰姆

五,产品封装图 (Package)56s嘉泰姆

---

56s嘉泰姆
56s嘉泰姆

六.电路原理图56s嘉泰姆

---

56s嘉泰姆

七,功能概述56s嘉泰姆

---

the node.56s嘉泰姆
Decoupling capacitor, the resistor dividers, boot capacitors, and current-limit stetting resistor should56s嘉泰姆
be close to their pins. (For example, place the decoupling ceramic capacitor near the drain of the56s嘉泰姆
high-side MOSFET as close as possible. The bulk capacitors are also placednear the drain).56s嘉泰姆
The input capacitor should be near the drain of the upper MOSFET; the high quality ceramic decoupling56s嘉泰姆
capacitor can be put close to the VCC and GND pins;the output capacitor should be near the loads. The56s嘉泰姆
input capacitor GND should be close to the output ca-pacitor GND and the lower MOSFET GND.56s嘉泰姆
The drain of the MOSFETs (V IN and PHASEx nodes)should be a large plane for heat sinking. And PHASEx56s嘉泰姆
pin traces are also the return path for UGATEx. Con-nect these pins to the respective converter’s upper56s嘉泰姆
MOSFET source.56s嘉泰姆
The controller used ripple mode control. Build the re-sistor divider close to the FB1 pin so that the high56s嘉泰姆
impedance trace is shorter when the output voltage is in ad justable mode. And the FB1 pin traces can’t be56s嘉泰姆
close to the switching signal traces (UGATEx, LGATEx,BOOTx, and PHASEx).56s嘉泰姆
The PGND trace should be a separate trace, and in-dependently go to the source of the low-side MOSFETs56s嘉泰姆
for current-limit accuracy.56s嘉泰姆
八,相关产品                更多同类产品......

---

Switching Regulator >   Buck Controller56s嘉泰姆
Part_No 56s嘉泰姆	Package 56s嘉泰姆	Archi56s嘉泰姆 tectu56s嘉泰姆	Phase56s嘉泰姆	No.of56s嘉泰姆 PWM56s嘉泰姆 Output56s嘉泰姆	Output 56s嘉泰姆 Current56s嘉泰姆 (A) 56s嘉泰姆	Input56s嘉泰姆 Voltage (V) 56s嘉泰姆		Reference56s嘉泰姆 Voltage56s嘉泰姆 (V) 56s嘉泰姆	Bias 56s嘉泰姆 Voltage56s嘉泰姆 (V) 56s嘉泰姆	Quiescent56s嘉泰姆 Current56s嘉泰姆 (uA) 56s嘉泰姆
						min56s嘉泰姆	max56s嘉泰姆
CXSD627356s嘉泰姆	SOP-1456s嘉泰姆 QSOP-1656s嘉泰姆 QFN4x4-1656s嘉泰姆	VM    56s嘉泰姆	1   56s嘉泰姆	1     56s嘉泰姆	3056s嘉泰姆	2.9    56s嘉泰姆	13.256s嘉泰姆	0.956s嘉泰姆	12     56s嘉泰姆	800056s嘉泰姆
CXSD627456s嘉泰姆	SOP-856s嘉泰姆	VM   56s嘉泰姆	156s嘉泰姆	156s嘉泰姆	2056s嘉泰姆	2.9  56s嘉泰姆	13.2 56s嘉泰姆	0.856s嘉泰姆	1256s嘉泰姆	500056s嘉泰姆
CXSD6274C56s嘉泰姆	SOP-856s嘉泰姆	VM56s嘉泰姆	156s嘉泰姆	156s嘉泰姆	2056s嘉泰姆	2.956s嘉泰姆	13.256s嘉泰姆	0.856s嘉泰姆	1256s嘉泰姆	500056s嘉泰姆
CXSD627556s嘉泰姆	QFN4x4-2456s嘉泰姆	VM56s嘉泰姆	256s嘉泰姆	156s嘉泰姆	6056s嘉泰姆	3.156s嘉泰姆	13.256s嘉泰姆	0.656s嘉泰姆	1256s嘉泰姆	500056s嘉泰姆
CXSD627656s嘉泰姆	SOP-856s嘉泰姆	VM56s嘉泰姆	156s嘉泰姆	156s嘉泰姆	2056s嘉泰姆	2.256s嘉泰姆	13.256s嘉泰姆	0.856s嘉泰姆	5~1256s嘉泰姆	210056s嘉泰姆
CXSD6276A56s嘉泰姆	SOP-856s嘉泰姆	VM56s嘉泰姆	156s嘉泰姆	156s嘉泰姆	2056s嘉泰姆	2.256s嘉泰姆	13.256s嘉泰姆	0.856s嘉泰姆	5~1256s嘉泰姆	210056s嘉泰姆
CXSD6277/A/B56s嘉泰姆	SOP8|TSSOP856s嘉泰姆	VM56s嘉泰姆	156s嘉泰姆	156s嘉泰姆	556s嘉泰姆	556s嘉泰姆	13.256s嘉泰姆	1.25|0.856s嘉泰姆	5~1256s嘉泰姆	300056s嘉泰姆
CXSD627856s嘉泰姆	SOP-856s嘉泰姆	VM56s嘉泰姆	156s嘉泰姆	156s嘉泰姆	1056s嘉泰姆	3.356s嘉泰姆	5.556s嘉泰姆	0.856s嘉泰姆	556s嘉泰姆	210056s嘉泰姆
CXSD6279B56s嘉泰姆	SOP-1456s嘉泰姆	VM   56s嘉泰姆	156s嘉泰姆	156s嘉泰姆	1056s嘉泰姆	556s嘉泰姆	13.256s嘉泰姆	0.856s嘉泰姆	1256s嘉泰姆	200056s嘉泰姆
CXSD628056s嘉泰姆	TSSOP-2456s嘉泰姆 |QFN5x5-3256s嘉泰姆	VM56s嘉泰姆	156s嘉泰姆	256s嘉泰姆	2056s嘉泰姆	556s嘉泰姆	13.256s嘉泰姆	0.656s嘉泰姆	5~1256s嘉泰姆	400056s嘉泰姆
CXSD6281N56s嘉泰姆	SOP1456s嘉泰姆 QSOP1656s嘉泰姆 QFN-1656s嘉泰姆	VM56s嘉泰姆	156s嘉泰姆	156s嘉泰姆	3056s嘉泰姆	2.956s嘉泰姆	13.256s嘉泰姆	0.956s嘉泰姆	1256s嘉泰姆	400056s嘉泰姆
CXSD628256s嘉泰姆	SOP-1456s嘉泰姆	VM56s嘉泰姆	156s嘉泰姆	156s嘉泰姆	3056s嘉泰姆	2.256s嘉泰姆	13.256s嘉泰姆	0.656s嘉泰姆	1256s嘉泰姆	500056s嘉泰姆
CXSD6282A56s嘉泰姆	SOP-1456s嘉泰姆	VM56s嘉泰姆	156s嘉泰姆	156s嘉泰姆	3056s嘉泰姆	2.256s嘉泰姆	13.256s嘉泰姆	0.656s嘉泰姆	1256s嘉泰姆	500056s嘉泰姆
CXSD628356s嘉泰姆	SOP-1456s嘉泰姆	VM56s嘉泰姆	156s嘉泰姆	156s嘉泰姆	2556s嘉泰姆	2.256s嘉泰姆	13.256s嘉泰姆	0.856s嘉泰姆	1256s嘉泰姆	500056s嘉泰姆
CXSD6284/A56s嘉泰姆	LQFP7x7 4856s嘉泰姆 TQFN7x7-4856s嘉泰姆	VM56s嘉泰姆	156s嘉泰姆	656s嘉泰姆	0.01556s嘉泰姆	1.456s嘉泰姆	6.556s嘉泰姆	-56s嘉泰姆	556s嘉泰姆	180056s嘉泰姆
CXSD628556s嘉泰姆	TSSOP-24P56s嘉泰姆	VM56s嘉泰姆	156s嘉泰姆	256s嘉泰姆	2056s嘉泰姆	2.9756s嘉泰姆	5.556s嘉泰姆	0.856s嘉泰姆	5~1256s嘉泰姆	500056s嘉泰姆
CXSD628656s嘉泰姆	SOP-1456s嘉泰姆	VM56s嘉泰姆	156s嘉泰姆	156s嘉泰姆	1056s嘉泰姆	556s嘉泰姆	13.256s嘉泰姆	0.856s嘉泰姆	1256s嘉泰姆	300056s嘉泰姆
CXSD628756s嘉泰姆	SOP-8-P|DIP-856s嘉泰姆	VM56s嘉泰姆	156s嘉泰姆	156s嘉泰姆	3056s嘉泰姆	2.956s嘉泰姆	13.256s嘉泰姆	1.256s嘉泰姆	1256s嘉泰姆	300056s嘉泰姆
CXSD628856s嘉泰姆	SSOP2856s嘉泰姆 QFN4x4-2456s嘉泰姆	VM56s嘉泰姆	156s嘉泰姆	256s嘉泰姆	2056s嘉泰姆	556s嘉泰姆	2456s嘉泰姆	0.956s嘉泰姆	556s嘉泰姆	120056s嘉泰姆
CXSD628956s嘉泰姆	SOP-2056s嘉泰姆	VM56s嘉泰姆	156s嘉泰姆	256s嘉泰姆	2056s嘉泰姆	2.256s嘉泰姆	13.256s嘉泰姆	0.656s嘉泰姆	5~1256s嘉泰姆	400056s嘉泰姆
56s嘉泰姆

共有条评论 用户名: 密码: 验证码: 匿名发表