CXSD62114 integrates dual step-down, constant-on-time, synchronous PWM controllers (that drives dual N-channel MOSFETs for each channel) and two low drop-out regulators as well as various protecti

发布时间：2020-04-06 09:43:38 浏览次数：701 作者：嘉泰姆来源：1

摘要：CXSD62114 integrates dual step-down, constant-on-time, synchronous PWM controllers (that drives dual N-channel MOSFETs for each channel) and two low drop-out regulators as well as various protecti

目录LZ8嘉泰姆

1.产品概述 2.产品特点
3.应用范围 4.下载产品资料PDF文档
5.产品封装图 6.电路原理图
7.功能概述 8.相关产品LZ8嘉泰姆

一,产品概述(General Description) LZ8嘉泰姆

The CXSD62114 integrates dual step-down, constant-on-time,LZ8嘉泰姆

synchronous PWM controllers (that drives dual N-channel MOSFETs for
each channel) and two low drop-out regulators as well as various protections
into a chip.The PWM controllers step down high voltage of a battery
to generate low-voltage for NB applications. The output of PWM1 and
PWM2 can be adjusted from 2V to 5.5V by setting a resistive voltage-divider
from VOUTx to GND.The linear regulators provide 5V and 3.3V output for
standby power supply. The linear regulators provide up to 100mA output
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 VOUTx
by internal switchover MOSFET. It can save power dissipation. The charge
pump circuit with 250kHz clock driver uses VOUT1 as its power supply to generate ap-proximately 15V DC voltage.
The CXSD62114 provides excellent transient response and accurate DC output voltage in either PFM or PWM Mode. In Pulse-Frequency Mode (PFM),
the CXSD62114 provides very high efficiency over light to heavy loadsLZ8嘉泰姆

with loading-modulated switching frequencies. The Forced-PWM Mode works nearly at constant frequency for low-noise requirements. The unique ultrasonic
mode maintains the switching frequency above 25kHz, which eliminates noise in audio application.The CXSD62114A/D has individual enable controls for
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.
二.产品特点(Features)LZ8嘉泰姆

Wide Input voltage Range from 5.5V to 25V
Provide 5 Independent Outputs with ±1.0% Accu-racy Over-Temperature
PWM1 Controller with Adjustable (2V to 5.5V) Out-put
- PWM2 Controller with Adjustable (2V to 5.5V) Out-put
100mA Low Dropout Regulator (LDO5) with Fixed 5V Output
- 100mA Low Dropout Regulator (LDO3) with Fixed 3.3V Output
250kHz Clock Signal for 15V Charge Pump (Used PWM1 as Its Power Supply)
Excellent Line/Load Regulations about±1.5% over
temperature range at PWM Channels
Low Consumption in Standby Mode
2Cells Input Battery Support
Built in POR Control Scheme Implemented
Constant On-Time Control Scheme
Built in Soft Start for PWM Outputs and Soft Stop
for PWM Outputs and LDO Outputs
Integrated Bootstrap Forward P-CH MOSFET
High Efficiency over Light to Full Load Range (PWMs)
Built in Power Good Indicators (PWMs)
60% Under-Voltage and 115% Over-Voltage Protec-tions (PWM)
Adjustable Current-Limit Protection (PWMs)
- Using Sense Low-Side MOSFET’s RDS(ON)
Over-Temperature Protection
3mmx3mm Thin QFN-20 (TQFN3x3-20) package
Lead Free and Green Device Available (RoHS Compliant)
三,应用范围 (Applications)LZ8嘉泰姆

Notebook and Sub-Notebook Computers
Portable Devices
DDR1, DDR2, and DDR3 Power Supplies
3-Cell and 4-Cell Li+ Battery-Powered Devices
Graphic Cards
Game Consoles
Telecommunications
四.下载产品资料PDF文档 LZ8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！LZ8嘉泰姆

QQ截图20160419174301.jpg LZ8嘉泰姆

五,产品封装图 (Package)LZ8嘉泰姆

LZ8嘉泰姆

六.电路原理图LZ8嘉泰姆

LZ8嘉泰姆

七,功能概述LZ8嘉泰姆

the node.
Decoupling capacitor, the resistor dividers, boot capacitors, and current-limit stetting resistor should
be close to their pins. (For example, place the decoupling ceramic capacitor near the drain of the
high-side MOSFET as close as possible. The bulk capacitors are also placednear the drain).
The input capacitor should be near the drain of the upper MOSFET; the high quality ceramic decoupling
capacitor can be put close to the VCC and GND pins;the output capacitor should be near the loads. The
input capacitor GND should be close to the output ca-pacitor GND and the lower MOSFET GND.
The drain of the MOSFETs (V IN and PHASEx nodes)should be a large plane for heat sinking. And PHASEx
pin traces are also the return path for UGATEx. Con-nect these pins to the respective converter’s upper
MOSFET source.
The controller used ripple mode control. Build the re-sistor divider close to the FB1 pin so that the high
impedance trace is shorter when the output voltage is in ad justable mode. And the FB1 pin traces can’t be
close to the switching signal traces (UGATEx, LGATEx,BOOTx, and PHASEx).
The PGND trace should be a separate trace, and in-dependently go to the source of the low-side MOSFETs
for current-limit accuracy.
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CXSD6275LZ8嘉泰姆	QFN4x4-24LZ8嘉泰姆	VMLZ8嘉泰姆	2LZ8嘉泰姆	1LZ8嘉泰姆	60LZ8嘉泰姆	3.1LZ8嘉泰姆	13.2LZ8嘉泰姆	0.6LZ8嘉泰姆	12LZ8嘉泰姆	5000LZ8嘉泰姆
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CXSD6276ALZ8嘉泰姆	SOP-8LZ8嘉泰姆	VMLZ8嘉泰姆	1LZ8嘉泰姆	1LZ8嘉泰姆	20LZ8嘉泰姆	2.2LZ8嘉泰姆	13.2LZ8嘉泰姆	0.8LZ8嘉泰姆	5~12LZ8嘉泰姆	2100LZ8嘉泰姆
CXSD6277/A/BLZ8嘉泰姆	SOP8\|TSSOP8LZ8嘉泰姆	VMLZ8嘉泰姆	1LZ8嘉泰姆	1LZ8嘉泰姆	5LZ8嘉泰姆	5LZ8嘉泰姆	13.2LZ8嘉泰姆	1.25\|0.8LZ8嘉泰姆	5~12LZ8嘉泰姆	3000LZ8嘉泰姆
CXSD6278LZ8嘉泰姆	SOP-8LZ8嘉泰姆	VMLZ8嘉泰姆	1LZ8嘉泰姆	1LZ8嘉泰姆	10LZ8嘉泰姆	3.3LZ8嘉泰姆	5.5LZ8嘉泰姆	0.8LZ8嘉泰姆	5LZ8嘉泰姆	2100LZ8嘉泰姆
CXSD6279BLZ8嘉泰姆	SOP-14LZ8嘉泰姆	VM LZ8嘉泰姆	1LZ8嘉泰姆	1LZ8嘉泰姆	10LZ8嘉泰姆	5LZ8嘉泰姆	13.2LZ8嘉泰姆	0.8LZ8嘉泰姆	12LZ8嘉泰姆	2000LZ8嘉泰姆
CXSD6280LZ8嘉泰姆	TSSOP-24LZ8嘉泰姆 \|QFN5x5-32LZ8嘉泰姆	VMLZ8嘉泰姆	1LZ8嘉泰姆	2LZ8嘉泰姆	20LZ8嘉泰姆	5LZ8嘉泰姆	13.2LZ8嘉泰姆	0.6LZ8嘉泰姆	5~12LZ8嘉泰姆	4000LZ8嘉泰姆
CXSD6281NLZ8嘉泰姆	SOP14LZ8嘉泰姆 QSOP16LZ8嘉泰姆 QFN-16LZ8嘉泰姆	VMLZ8嘉泰姆	1LZ8嘉泰姆	1LZ8嘉泰姆	30LZ8嘉泰姆	2.9LZ8嘉泰姆	13.2LZ8嘉泰姆	0.9LZ8嘉泰姆	12LZ8嘉泰姆	4000LZ8嘉泰姆
CXSD6282LZ8嘉泰姆	SOP-14LZ8嘉泰姆	VMLZ8嘉泰姆	1LZ8嘉泰姆	1LZ8嘉泰姆	30LZ8嘉泰姆	2.2LZ8嘉泰姆	13.2LZ8嘉泰姆	0.6LZ8嘉泰姆	12LZ8嘉泰姆	5000LZ8嘉泰姆
CXSD6282ALZ8嘉泰姆	SOP-14LZ8嘉泰姆	VMLZ8嘉泰姆	1LZ8嘉泰姆	1LZ8嘉泰姆	30LZ8嘉泰姆	2.2LZ8嘉泰姆	13.2LZ8嘉泰姆	0.6LZ8嘉泰姆	12LZ8嘉泰姆	5000LZ8嘉泰姆
CXSD6283LZ8嘉泰姆	SOP-14LZ8嘉泰姆	VMLZ8嘉泰姆	1LZ8嘉泰姆	1LZ8嘉泰姆	25LZ8嘉泰姆	2.2LZ8嘉泰姆	13.2LZ8嘉泰姆	0.8LZ8嘉泰姆	12LZ8嘉泰姆	5000LZ8嘉泰姆
CXSD6284/ALZ8嘉泰姆	LQFP7x7 48LZ8嘉泰姆 TQFN7x7-48LZ8嘉泰姆	VMLZ8嘉泰姆	1LZ8嘉泰姆	6LZ8嘉泰姆	0.015LZ8嘉泰姆	1.4LZ8嘉泰姆	6.5LZ8嘉泰姆	-LZ8嘉泰姆	5LZ8嘉泰姆	1800LZ8嘉泰姆
CXSD6285LZ8嘉泰姆	TSSOP-24PLZ8嘉泰姆	VMLZ8嘉泰姆	1LZ8嘉泰姆	2LZ8嘉泰姆	20LZ8嘉泰姆	2.97LZ8嘉泰姆	5.5LZ8嘉泰姆	0.8LZ8嘉泰姆	5~12LZ8嘉泰姆	5000LZ8嘉泰姆
CXSD6286LZ8嘉泰姆	SOP-14LZ8嘉泰姆	VMLZ8嘉泰姆	1LZ8嘉泰姆	1LZ8嘉泰姆	10LZ8嘉泰姆	5LZ8嘉泰姆	13.2LZ8嘉泰姆	0.8LZ8嘉泰姆	12LZ8嘉泰姆	3000LZ8嘉泰姆
CXSD6287LZ8嘉泰姆	SOP-8-P\|DIP-8LZ8嘉泰姆	VMLZ8嘉泰姆	1LZ8嘉泰姆	1LZ8嘉泰姆	30LZ8嘉泰姆	2.9LZ8嘉泰姆	13.2LZ8嘉泰姆	1.2LZ8嘉泰姆	12LZ8嘉泰姆	3000LZ8嘉泰姆
CXSD6288LZ8嘉泰姆	SSOP28LZ8嘉泰姆 QFN4x4-24LZ8嘉泰姆	VMLZ8嘉泰姆	1LZ8嘉泰姆	2LZ8嘉泰姆	20LZ8嘉泰姆	5LZ8嘉泰姆	24LZ8嘉泰姆	0.9LZ8嘉泰姆	5LZ8嘉泰姆	1200LZ8嘉泰姆
CXSD6289LZ8嘉泰姆	SOP-20LZ8嘉泰姆	VMLZ8嘉泰姆	1LZ8嘉泰姆	2LZ8嘉泰姆	20LZ8嘉泰姆	2.2LZ8嘉泰姆	13.2LZ8嘉泰姆	0.6LZ8嘉泰姆	5~12LZ8嘉泰姆	4000LZ8嘉泰姆
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CXSD6291HCLZ8嘉泰姆	DIP8\|SOP-8LZ8嘉泰姆	VMLZ8嘉泰姆	1LZ8嘉泰姆	1LZ8嘉泰姆	1LZ8嘉泰姆	1.2LZ8嘉泰姆	9LZ8嘉泰姆	24LZ8嘉泰姆	5LZ8嘉泰姆	9 ~ 24LZ8嘉泰姆
CXSD6292LZ8嘉泰姆	SSOP16LZ8嘉泰姆 QFN4x4-16LZ8嘉泰姆 TQFN3x3-16LZ8嘉泰姆	VMLZ8嘉泰姆	1LZ8嘉泰姆	1LZ8嘉泰姆	25LZ8嘉泰姆	3LZ8嘉泰姆	25LZ8嘉泰姆	0.6LZ8嘉泰姆	5LZ8嘉泰姆	1700LZ8嘉泰姆
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CXSD6298LZ8嘉泰姆	TDFN3x3-10LZ8嘉泰姆	COTLZ8嘉泰姆	1LZ8嘉泰姆	1LZ8嘉泰姆	25LZ8嘉泰姆	4.5LZ8嘉泰姆	25LZ8嘉泰姆	0.6LZ8嘉泰姆	5~12LZ8嘉泰姆	80LZ8嘉泰姆
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CXSD62102ALZ8嘉泰姆	TQFN 3x3 16LZ8嘉泰姆	COTLZ8嘉泰姆	1LZ8嘉泰姆	1LZ8嘉泰姆	30LZ8嘉泰姆	1.8LZ8嘉泰姆	28LZ8嘉泰姆	0.6LZ8嘉泰姆	5LZ8嘉泰姆	600LZ8嘉泰姆
CXSD62103LZ8嘉泰姆	QFN4x4-24LZ8嘉泰姆	VMLZ8嘉泰姆	2LZ8嘉泰姆	1LZ8嘉泰姆	50LZ8嘉泰姆	4.5LZ8嘉泰姆	13.2LZ8嘉泰姆	0.6LZ8嘉泰姆	5~12LZ8嘉泰姆	5000LZ8嘉泰姆
CXSD62104LZ8嘉泰姆	TQFN4x4-24LZ8嘉泰姆	COTLZ8嘉泰姆	1LZ8嘉泰姆	2LZ8嘉泰姆	15LZ8嘉泰姆	6LZ8嘉泰姆	25LZ8嘉泰姆	2LZ8嘉泰姆	NLZ8嘉泰姆	550LZ8嘉泰姆
CXSD62105LZ8嘉泰姆	TQFN4x4-24LZ8嘉泰姆	COTLZ8嘉泰姆	1LZ8嘉泰姆	2LZ8嘉泰姆	15LZ8嘉泰姆	6LZ8嘉泰姆	25LZ8嘉泰姆	2LZ8嘉泰姆	NLZ8嘉泰姆	550LZ8嘉泰姆
CXSD62106\|ALZ8嘉泰姆	TQFN4x4-4LZ8嘉泰姆 TQFN3x3-20LZ8嘉泰姆	COTLZ8嘉泰姆	1LZ8嘉泰姆	2LZ8嘉泰姆	20LZ8嘉泰姆	3LZ8嘉泰姆	28LZ8嘉泰姆	0.75LZ8嘉泰姆	5LZ8嘉泰姆	800LZ8嘉泰姆
CXSD62107LZ8嘉泰姆	TQFN3x3-16LZ8嘉泰姆	COTLZ8嘉泰姆	1LZ8嘉泰姆	1LZ8嘉泰姆	20LZ8嘉泰姆	1.8LZ8嘉泰姆	28LZ8嘉泰姆	0.75LZ8嘉泰姆	5LZ8嘉泰姆	400LZ8嘉泰姆
CXSD62108LZ8嘉泰姆	QFN3.5x3.5-14LZ8嘉泰姆 TQFN3x3-16LZ8嘉泰姆	COTLZ8嘉泰姆	1LZ8嘉泰姆	1LZ8嘉泰姆	20LZ8嘉泰姆	1.8LZ8嘉泰姆	28LZ8嘉泰姆	0.75LZ8嘉泰姆	5LZ8嘉泰姆	400LZ8嘉泰姆
CXSD62109LZ8嘉泰姆	TQFN3x3-16LZ8嘉泰姆	COTLZ8嘉泰姆	1LZ8嘉泰姆	2LZ8嘉泰姆	20LZ8嘉泰姆	1.8LZ8嘉泰姆	28LZ8嘉泰姆	0.75LZ8嘉泰姆	5LZ8嘉泰姆	400LZ8嘉泰姆
CXSD62110LZ8嘉泰姆	QFN3x3-20LZ8嘉泰姆 TQFN3x3-16LZ8嘉泰姆	COTLZ8嘉泰姆	1LZ8嘉泰姆	2LZ8嘉泰姆	20LZ8嘉泰姆	3LZ8嘉泰姆	28LZ8嘉泰姆	1.8\|1.5\|0.5LZ8嘉泰姆	5LZ8嘉泰姆	740LZ8嘉泰姆
CXSD62111LZ8嘉泰姆	TQFN4x4-24LZ8嘉泰姆 \|QFN3x3-20LZ8嘉泰姆	CMLZ8嘉泰姆	1LZ8嘉泰姆	2LZ8嘉泰姆	15LZ8嘉泰姆	5LZ8嘉泰姆	28LZ8嘉泰姆	0.5LZ8嘉泰姆	NLZ8嘉泰姆	3000LZ8嘉泰姆
CXSD62112LZ8嘉泰姆	TDFN3x3-10LZ8嘉泰姆	COTLZ8嘉泰姆	1LZ8嘉泰姆	1LZ8嘉泰姆	20LZ8嘉泰姆	1.8LZ8嘉泰姆	28LZ8嘉泰姆	0.5LZ8嘉泰姆	5LZ8嘉泰姆	250LZ8嘉泰姆
CXSD62113\|CLZ8嘉泰姆	TQFN3x3-20LZ8嘉泰姆	COTLZ8嘉泰姆	1LZ8嘉泰姆	2LZ8嘉泰姆	15LZ8嘉泰姆	6LZ8嘉泰姆	25LZ8嘉泰姆	2LZ8嘉泰姆	NLZ8嘉泰姆	550LZ8嘉泰姆
CXSD62113ELZ8嘉泰姆	TQFN 3x3 20LZ8嘉泰姆	COTLZ8嘉泰姆	2LZ8嘉泰姆	2LZ8嘉泰姆	11LZ8嘉泰姆	6LZ8嘉泰姆	25LZ8嘉泰姆	2LZ8嘉泰姆	NLZ8嘉泰姆	550LZ8嘉泰姆
CXSD62114LZ8嘉泰姆	TQFN3x3-20LZ8嘉泰姆	COTLZ8嘉泰姆	2LZ8嘉泰姆	2LZ8嘉泰姆	11LZ8嘉泰姆	5.5LZ8嘉泰姆	25LZ8嘉泰姆	2LZ8嘉泰姆	NLZ8嘉泰姆	280LZ8嘉泰姆
CXSD62115LZ8嘉泰姆	QFN4x4-24LZ8嘉泰姆	VMLZ8嘉泰姆	2LZ8嘉泰姆	1LZ8嘉泰姆	60LZ8嘉泰姆	3.1LZ8嘉泰姆	13.2LZ8嘉泰姆	0.85LZ8嘉泰姆	12LZ8嘉泰姆	5000LZ8嘉泰姆
CXSD62116A\|B\|CLZ8嘉泰姆	SOP-8PLZ8嘉泰姆	VMLZ8嘉泰姆	1LZ8嘉泰姆	1LZ8嘉泰姆	20LZ8嘉泰姆	2.9LZ8嘉泰姆	13.2LZ8嘉泰姆	0.8LZ8嘉泰姆	12LZ8嘉泰姆	16000LZ8嘉泰姆
CXSD62117LZ8嘉泰姆	SOP-20LZ8嘉泰姆	VMLZ8嘉泰姆	2LZ8嘉泰姆	2LZ8嘉泰姆	30LZ8嘉泰姆	10LZ8嘉泰姆	13.2LZ8嘉泰姆	1LZ8嘉泰姆	12LZ8嘉泰姆	5000LZ8嘉泰姆
CXSD62118LZ8嘉泰姆	TDFN3x3-10LZ8嘉泰姆	COTLZ8嘉泰姆	1LZ8嘉泰姆	1LZ8嘉泰姆	25LZ8嘉泰姆	1.8LZ8嘉泰姆	28LZ8嘉泰姆	0.7LZ8嘉泰姆	5LZ8嘉泰姆	250LZ8嘉泰姆
CXSD62119LZ8嘉泰姆	TQFN3x3-20LZ8嘉泰姆	COTLZ8嘉泰姆	2LZ8嘉泰姆	1LZ8嘉泰姆	40LZ8嘉泰姆	1.8LZ8嘉泰姆	25LZ8嘉泰姆	REFIN SettingLZ8嘉泰姆	5LZ8嘉泰姆	700LZ8嘉泰姆
CXSD62120LZ8嘉泰姆	QFN 3x3 20LZ8嘉泰姆 TQFN 3x3 16LZ8嘉泰姆	COTLZ8嘉泰姆	1LZ8嘉泰姆	2LZ8嘉泰姆	20LZ8嘉泰姆	3LZ8嘉泰姆	28LZ8嘉泰姆	1.8\|1.5 1.35\|1.2 0.5LZ8嘉泰姆	5LZ8嘉泰姆	800LZ8嘉泰姆
CXSD62121ALZ8嘉泰姆	TQFN3x3 20LZ8嘉泰姆	COTLZ8嘉泰姆	1LZ8嘉泰姆	2LZ8嘉泰姆	15LZ8嘉泰姆	3LZ8嘉泰姆	28LZ8嘉泰姆	0.75LZ8嘉泰姆	5LZ8嘉泰姆	220LZ8嘉泰姆
CXSD62121BLZ8嘉泰姆	TQFN3x3 20LZ8嘉泰姆	COTLZ8嘉泰姆	1LZ8嘉泰姆	2LZ8嘉泰姆	15LZ8嘉泰姆	3LZ8嘉泰姆	28LZ8嘉泰姆	0.75LZ8嘉泰姆	5LZ8嘉泰姆	220LZ8嘉泰姆
CXSD62121LZ8嘉泰姆	TQFN3x3-20LZ8嘉泰姆	COTLZ8嘉泰姆	1LZ8嘉泰姆	2LZ8嘉泰姆	20LZ8嘉泰姆	3LZ8嘉泰姆	28LZ8嘉泰姆	0.75LZ8嘉泰姆	5LZ8嘉泰姆	180LZ8嘉泰姆

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CXSD62114 integrates dual step-down, constant-on-time, synchronous PWM controllers (that drives dual N-channel MOSFETs for each channel) and two low drop-out regulators as well as various protecti

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CXSD62114 integrates dual step-down, constant-on-time, synchronous PWM controllers (that drives dual N-channel MOSFETs for each channel) and two low drop-out regulators as well as various protecti

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