CXSD61044D high-efficiency, high frequency synchronous step-down DC-DC regulator ICs capable of del

发表时间：2020-04-09浏览次数：83

目录wdU嘉泰姆

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

wdU嘉泰姆

一,产品概述(General Description) wdU嘉泰姆

The CXSD61039 CXSD61044D are high-efficiency, high frequency synchronous wdU嘉泰姆

step-down DC-DC regulator ICs capable of delivering up to 1.5A output wdU嘉泰姆

currents. The CXSD61039 can operate over a wide inpu tvoltage range wdU嘉泰姆

from 2.3V to 6.0V and integrate main switch and synchronous switch wdU嘉泰姆

with very low RDS(ON) to minimize the conduction loss.wdU嘉泰姆

It is ideal for powering portable equipment that runs from a single cellwdU嘉泰姆
Lithium-Ion (Li+) battery. The CXSD61039 output voltage can be regulated wdU嘉泰姆

as low as 0.6V. The CXSD61039 CXSD61044D can also run at 100% duty cycle for low dropout operation, extending battery life in portable system. This device offerswdU嘉泰姆

two operation modes,PWM control and PFM Mode switching control,which wdU嘉泰姆

allows a high efficiency over the wider range of the load.wdU嘉泰姆
The CXSD61039 CXSD61044D is off ered in a low profile (1mm)5-pin, thin SOT package, and is available in an adjustable version.wdU嘉泰姆

二.产品特点(Features)wdU嘉泰姆

High Efficiency: Up to 96%wdU嘉泰姆
1.0MHz Constant Frequency OperationwdU嘉泰姆
2A Output CurrentwdU嘉泰姆
No Schottky Diode RequiredwdU嘉泰姆
2.3V to 6V Input Voltage RangewdU嘉泰姆
Output Voltage as Low as 0.6VwdU嘉泰姆
PFM Mode for High Efficiency in Light LoadwdU嘉泰姆
100% Duty Cycle in Dropout OperationwdU嘉泰姆
Low Quiescent Current: 40μAwdU嘉泰姆
Short Circuit ProtectionwdU嘉泰姆
Thermal Fault ProtectionwdU嘉泰姆
Inrush Current Limit and Soft StartwdU嘉泰姆
Input overvoltage protection(OVP)wdU嘉泰姆
<1μA Shutdown CurrentwdU嘉泰姆
SOT23-5 packagewdU嘉泰姆
三,应用范围 (Applications)wdU嘉泰姆

Cellular and Smart PhoneswdU嘉泰姆
Wireless and DSL ModemswdU嘉泰姆
PDAswdU嘉泰姆
Portable InstrumentswdU嘉泰姆
Digital Still and Video CameraswdU嘉泰姆
PC CardswdU嘉泰姆
四.技术规格书下载（产品PDF）wdU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！wdU嘉泰姆

wdU嘉泰姆

五,产品封装图 (Package)wdU嘉泰姆

wdU嘉泰姆

PINwdU嘉泰姆	NAMEwdU嘉泰姆	FUNCTIONwdU嘉泰姆
1wdU嘉泰姆	RUNwdU嘉泰姆	Chip Enable Pin. Drive RUN above 1.5V to turn on the part. DrivewdU嘉泰姆 RUN below 0.3V to turn it off. Do not leave RUN floating.wdU嘉泰姆
2wdU嘉泰姆	GNDwdU嘉泰姆	Ground PinwdU嘉泰姆
3wdU嘉泰姆	SWwdU嘉泰姆	Power Switch Output. It is the switch node connection to Inductor.wdU嘉泰姆 This pin connects to the drains of the internal P-ch and N-ch MOSFET switches.wdU嘉泰姆
4wdU嘉泰姆	VINwdU嘉泰姆	Power Supply Input. Must be closely decoupled to GND with a 10μF or greater ceramic capacitor.wdU嘉泰姆
5wdU嘉泰姆	VOUTwdU嘉泰姆	Output Voltage Feedback Pin. An internal resistive divider divides the output voltage down for comparison to the internal reference voltage.wdU嘉泰姆

六.电路原理图wdU嘉泰姆

wdU嘉泰姆
七,功能概述wdU嘉泰姆

ParameterwdU嘉泰姆	ConditionswdU嘉泰姆	MINwdU嘉泰姆	TYPwdU嘉泰姆	MAXwdU嘉泰姆	unitwdU嘉泰姆
Input Voltage RangewdU嘉泰姆		2.3wdU嘉泰姆		6.0wdU嘉泰姆	VwdU嘉泰姆
UVLO ThresholdwdU嘉泰姆		1.7wdU嘉泰姆	1.9wdU嘉泰姆	2.1wdU嘉泰姆	VwdU嘉泰姆
Input DC Supply CurrentwdU嘉泰姆 PWM ModewdU嘉泰姆 PFM ModewdU嘉泰姆 Shutdown ModewdU嘉泰姆	(Note 4)wdU嘉泰姆 Vout = 90%, Iload=0mAwdU嘉泰姆 Vout = 105%, Iload=0mAwdU嘉泰姆 VRUN = 0V, VIN=4.2VwdU嘉泰姆		140wdU嘉泰姆 35wdU嘉泰姆 0.1wdU嘉泰姆	300wdU嘉泰姆 70wdU嘉泰姆 1.0wdU嘉泰姆	μAwdU嘉泰姆 μAwdU嘉泰姆 μAwdU嘉泰姆 μAwdU嘉泰姆
Regulated Feedback VoltagewdU嘉泰姆	TA = 25°CwdU嘉泰姆	0.588wdU嘉泰姆	0.600wdU嘉泰姆	0.612wdU嘉泰姆	VwdU嘉泰姆
	TA = 0°C ≤ TA ≤ 85°CwdU嘉泰姆	0.586wdU嘉泰姆	0.600wdU嘉泰姆	0.613wdU嘉泰姆	VwdU嘉泰姆
	TA = -40°C ≤ TA ≤ 85°CwdU嘉泰姆	0.585wdU嘉泰姆	0.600wdU嘉泰姆	0.615wdU嘉泰姆	VwdU嘉泰姆
Reference Voltage LinewdU嘉泰姆 RegulationwdU嘉泰姆	Vin=2.3V to 6.0VwdU嘉泰姆		0.04wdU嘉泰姆	0.40wdU嘉泰姆	%/VwdU嘉泰姆
Output Voltage LinewdU嘉泰姆 RegulationwdU嘉泰姆	VIN = 2.3V to 6.0VwdU嘉泰姆		0.04wdU嘉泰姆	0.4wdU嘉泰姆	%wdU嘉泰姆
Output Voltage LoadwdU嘉泰姆 RegulationwdU嘉泰姆			0.5wdU嘉泰姆		%wdU嘉泰姆
Oscillation FrequencywdU嘉泰姆	Vout=100%wdU嘉泰姆 Vout=0VwdU嘉泰姆		1.0wdU嘉泰姆		MHzwdU嘉泰姆
Oscillation FrequencywdU嘉泰姆	Vout=100%wdU嘉泰姆 Vout=0VwdU嘉泰姆		300wdU嘉泰姆		KHzwdU嘉泰姆
On Resistance of PMOSwdU嘉泰姆	ISW=100mAwdU嘉泰姆		0.2wdU嘉泰姆		ΩwdU嘉泰姆
ON Resistance of NMOSwdU嘉泰姆	ISW=-100mAwdU嘉泰姆		0.13wdU嘉泰姆		ΩwdU嘉泰姆
Peak Current LimitwdU嘉泰姆	VIN= 3V, Vout=90% 3410AwdU嘉泰姆		2.5wdU嘉泰姆		AwdU嘉泰姆
Peak Current LimitwdU嘉泰姆	VIN= 3V, Vout=90% 3410wdU嘉泰姆		2.5wdU嘉泰姆		AwdU嘉泰姆
RUN ThresholdwdU嘉泰姆		0.30wdU嘉泰姆	1.0wdU嘉泰姆	1.50wdU嘉泰姆	VwdU嘉泰姆
RUN Leakage CurrentwdU嘉泰姆			±0.01wdU嘉泰姆	±1.0wdU嘉泰姆	μAwdU嘉泰姆
SW Leakage CurrentwdU嘉泰姆	VRUN=0V,VIN=Vsw=5VwdU嘉泰姆		±0.01wdU嘉泰姆	±1.0wdU嘉泰姆	μAwdU嘉泰姆

八,相关芯片选择指南更多同类产品......wdU嘉泰姆

低压同步DC-DC降压ICwdU嘉泰姆
型号wdU嘉泰姆	输入耐压wdU嘉泰姆	输出电压wdU嘉泰姆	输出电流wdU嘉泰姆	反馈电压wdU嘉泰姆	工作频率wdU嘉泰姆	效率wdU嘉泰姆	静态工作电流wdU嘉泰姆	待机电流wdU嘉泰姆	封装wdU嘉泰姆
CXSD61036wdU嘉泰姆	2.0-6.0VwdU嘉泰姆	1.2V/1.8V/3.3V/可调输出wdU嘉泰姆	0.7AwdU嘉泰姆	0.6VwdU嘉泰姆	1.5MHzwdU嘉泰姆	96%wdU嘉泰姆	20uAwdU嘉泰姆		SOT-25wdU嘉泰姆
CXSD61037wdU嘉泰姆	2.5-6.0VwdU嘉泰姆	可调输出wdU嘉泰姆	1AwdU嘉泰姆	0.6VwdU嘉泰姆	1.5MHzwdU嘉泰姆	96%wdU嘉泰姆	20uAwdU嘉泰姆		SOT-25wdU嘉泰姆
CXSD61038wdU嘉泰姆	2.0-6.0VwdU嘉泰姆	可调输出wdU嘉泰姆	1.0AwdU嘉泰姆	0.6VwdU嘉泰姆	1.5MwdU嘉泰姆	96%wdU嘉泰姆	20uAwdU嘉泰姆	1uAwdU嘉泰姆	SOT-25wdU嘉泰姆
CXSD61038AwdU嘉泰姆	2.3-6.0VwdU嘉泰姆	可调输出wdU嘉泰姆	1.2AwdU嘉泰姆	0.6VwdU嘉泰姆	1.5MwdU嘉泰姆	96%wdU嘉泰姆	35uAwdU嘉泰姆	1uAwdU嘉泰姆	SOT-25wdU嘉泰姆
CXSD61038BwdU嘉泰姆	2.3-6.0VwdU嘉泰姆	可调输出wdU嘉泰姆	1.5AwdU嘉泰姆	0.6VwdU嘉泰姆	1.5MwdU嘉泰姆	96%wdU嘉泰姆	35uAwdU嘉泰姆	1uAwdU嘉泰姆	SOT-25wdU嘉泰姆
CXSD61039wdU嘉泰姆	2.3-6.0VwdU嘉泰姆	可调输出wdU嘉泰姆	1.5AwdU嘉泰姆	0.6VwdU嘉泰姆	1.5MwdU嘉泰姆	96%wdU嘉泰姆	35uAwdU嘉泰姆	1uAwdU嘉泰姆	SOT-25wdU嘉泰姆
CXSD61040wdU嘉泰姆	2.0-6.5VwdU嘉泰姆	可调输出wdU嘉泰姆	2.0AwdU嘉泰姆	0.6VwdU嘉泰姆	1.5MwdU嘉泰姆	96%wdU嘉泰姆	40uAwdU嘉泰姆	1uAwdU嘉泰姆	SOT-26wdU嘉泰姆
CXSD61040BwdU嘉泰姆	2.6-6.0VwdU嘉泰姆	可调输出wdU嘉泰姆	2.0AwdU嘉泰姆	0.6VwdU嘉泰姆	3MwdU嘉泰姆	96%wdU嘉泰姆	30uAwdU嘉泰姆	0.1uAwdU嘉泰姆	SOT-25wdU嘉泰姆
CXSD61042SwdU嘉泰姆	2.3-6.5VwdU嘉泰姆	可调输出wdU嘉泰姆	2.0AwdU嘉泰姆	0.6VwdU嘉泰姆	1.5MwdU嘉泰姆	96%wdU嘉泰姆	40uAwdU嘉泰姆	40uAwdU嘉泰姆	SOP-8wdU嘉泰姆
CXSD61043SwdU嘉泰姆	2.3-6.5VwdU嘉泰姆	可调输出wdU嘉泰姆	3.0AwdU嘉泰姆	0.6VwdU嘉泰姆	1.5MwdU嘉泰姆	95%wdU嘉泰姆	40uAwdU嘉泰姆	40uAwdU嘉泰姆	ESOP-8wdU嘉泰姆
CXSD61044DwdU嘉泰姆	2.3V-6.5VwdU嘉泰姆	可调输出wdU嘉泰姆	1.3AwdU嘉泰姆	0.6VwdU嘉泰姆	1.5MwdU嘉泰姆	96%wdU嘉泰姆	35uAwdU嘉泰姆	35uAwdU嘉泰姆	DFN2*2-6wdU嘉泰姆
CXSD61040DwdU嘉泰姆	2.3V-6.5VwdU嘉泰姆	可调输出wdU嘉泰姆	2AwdU嘉泰姆	0.6VwdU嘉泰姆	1.5MwdU嘉泰姆	95%wdU嘉泰姆	40uAwdU嘉泰姆	40uAwdU嘉泰姆	DFN3*3-10wdU嘉泰姆
CXSD61043wdU嘉泰姆	2.5-6.0VwdU嘉泰姆	可调输出wdU嘉泰姆	3.0AwdU嘉泰姆	0.6VwdU嘉泰姆	1MHzwdU嘉泰姆	95%wdU嘉泰姆	40uAwdU嘉泰姆	0.1uAwdU嘉泰姆	SOT-25wdU嘉泰姆

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