CXSD61039 high frequency synchronous step-down DC-DC regulator ICs capable of delivering up to 1.5A

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发表时间：2020-04-09浏览次数：299

CXSD61039 high frequency synchronous step-down DC-DC regulator ICs capable of delivering up to 1.5A

目录aJ1嘉泰姆

1.产品概述         2.产品特点aJ1嘉泰姆
3.应用范围       4.下载产品资料PDF文档 aJ1嘉泰姆
5.产品封装图                     6.电路原理图             aJ1嘉泰姆
7.功能概述       8.相关产品aJ1嘉泰姆

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一,产品概述(General Description) aJ1嘉泰姆

The CXSD61039 CXSD61044D are high-efficiency, high frequency synchronous aJ1嘉泰姆

step-down DC-DC regulator ICs capable of delivering up to 1.5A output aJ1嘉泰姆

currents. The CXSD61039 can operate over a wide inpu tvoltage range aJ1嘉泰姆

from 2.3V to 6.0V and integrate main switch and synchronous switch aJ1嘉泰姆

with very low RDS(ON) to minimize the conduction loss.aJ1嘉泰姆

It is ideal for powering portable equipment that runs from a single cellaJ1嘉泰姆
Lithium-Ion (Li+) battery. The CXSD61039 output voltage can be regulated aJ1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 offersaJ1嘉泰姆

two operation modes,PWM control and PFM Mode switching control,which aJ1嘉泰姆

allows a high efficiency over the wider range of the load.aJ1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.aJ1嘉泰姆

二.产品特点(Features)aJ1嘉泰姆

High Efficiency: Up to 96%aJ1嘉泰姆
1.0MHz Constant Frequency OperationaJ1嘉泰姆
2A Output CurrentaJ1嘉泰姆
No Schottky Diode RequiredaJ1嘉泰姆
2.3V to 6V Input Voltage RangeaJ1嘉泰姆
Output Voltage as Low as 0.6VaJ1嘉泰姆
PFM Mode for High Efficiency in Light LoadaJ1嘉泰姆
100% Duty Cycle in Dropout OperationaJ1嘉泰姆
Low Quiescent Current: 40μAaJ1嘉泰姆
Short Circuit ProtectionaJ1嘉泰姆
Thermal Fault ProtectionaJ1嘉泰姆
Inrush Current Limit and Soft StartaJ1嘉泰姆
Input overvoltage protection(OVP)aJ1嘉泰姆
<1μA Shutdown CurrentaJ1嘉泰姆
SOT23-5 packageaJ1嘉泰姆
三,应用范围 (Applications)aJ1嘉泰姆

Cellular and Smart PhonesaJ1嘉泰姆
Wireless and DSL ModemsaJ1嘉泰姆
PDAsaJ1嘉泰姆
Portable InstrumentsaJ1嘉泰姆
Digital Still and Video CamerasaJ1嘉泰姆
PC CardsaJ1嘉泰姆
四.技术规格书下载（产品PDF）aJ1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！aJ1嘉泰姆

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五,产品封装图 (Package)aJ1嘉泰姆

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PINaJ1嘉泰姆	NAMEaJ1嘉泰姆	FUNCTIONaJ1嘉泰姆
1aJ1嘉泰姆	RUNaJ1嘉泰姆	Chip Enable Pin. Drive RUN above 1.5V to turn on the part. DriveaJ1嘉泰姆 RUN below 0.3V to turn it off. Do not leave RUN floating.aJ1嘉泰姆
2aJ1嘉泰姆	GNDaJ1嘉泰姆	Ground PinaJ1嘉泰姆
3aJ1嘉泰姆	SWaJ1嘉泰姆	Power Switch Output. It is the switch node connection to Inductor.aJ1嘉泰姆 This pin connects to the drains of the internal P-ch and N-ch MOSFET switches.aJ1嘉泰姆
4aJ1嘉泰姆	VINaJ1嘉泰姆	Power Supply Input. Must be closely decoupled to GND with a 10μF or greater ceramic capacitor.aJ1嘉泰姆
5aJ1嘉泰姆	VOUTaJ1嘉泰姆	Output Voltage Feedback Pin. An internal resistive divider divides the output voltage down for comparison to the internal reference voltage.aJ1嘉泰姆

六.电路原理图aJ1嘉泰姆

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七,功能概述aJ1嘉泰姆

ParameteraJ1嘉泰姆	ConditionsaJ1嘉泰姆	MINaJ1嘉泰姆	TYPaJ1嘉泰姆	MAXaJ1嘉泰姆	unitaJ1嘉泰姆
Input Voltage RangeaJ1嘉泰姆		2.3aJ1嘉泰姆		6.0aJ1嘉泰姆	VaJ1嘉泰姆
UVLO ThresholdaJ1嘉泰姆		1.7aJ1嘉泰姆	1.9aJ1嘉泰姆	2.1aJ1嘉泰姆	VaJ1嘉泰姆
Input DC Supply CurrentaJ1嘉泰姆 PWM ModeaJ1嘉泰姆 PFM ModeaJ1嘉泰姆 Shutdown ModeaJ1嘉泰姆	(Note 4)aJ1嘉泰姆 Vout = 90%, Iload=0mAaJ1嘉泰姆 Vout = 105%, Iload=0mAaJ1嘉泰姆 VRUN = 0V, VIN=4.2VaJ1嘉泰姆		140aJ1嘉泰姆 35aJ1嘉泰姆 0.1aJ1嘉泰姆	300aJ1嘉泰姆 70aJ1嘉泰姆 1.0aJ1嘉泰姆	μAaJ1嘉泰姆 μAaJ1嘉泰姆 μAaJ1嘉泰姆 μAaJ1嘉泰姆
Regulated Feedback VoltageaJ1嘉泰姆	TA = 25°CaJ1嘉泰姆	0.588aJ1嘉泰姆	0.600aJ1嘉泰姆	0.612aJ1嘉泰姆	VaJ1嘉泰姆
	TA = 0°C ≤ TA ≤ 85°CaJ1嘉泰姆	0.586aJ1嘉泰姆	0.600aJ1嘉泰姆	0.613aJ1嘉泰姆	VaJ1嘉泰姆
	TA = -40°C ≤ TA ≤ 85°CaJ1嘉泰姆	0.585aJ1嘉泰姆	0.600aJ1嘉泰姆	0.615aJ1嘉泰姆	VaJ1嘉泰姆
Reference Voltage LineaJ1嘉泰姆 RegulationaJ1嘉泰姆	Vin=2.3V to 6.0VaJ1嘉泰姆		0.04aJ1嘉泰姆	0.40aJ1嘉泰姆	%/VaJ1嘉泰姆
Output Voltage LineaJ1嘉泰姆 RegulationaJ1嘉泰姆	VIN = 2.3V to 6.0VaJ1嘉泰姆		0.04aJ1嘉泰姆	0.4aJ1嘉泰姆	%aJ1嘉泰姆
Output Voltage LoadaJ1嘉泰姆 RegulationaJ1嘉泰姆			0.5aJ1嘉泰姆		%aJ1嘉泰姆
Oscillation FrequencyaJ1嘉泰姆	Vout=100%aJ1嘉泰姆 Vout=0VaJ1嘉泰姆		1.0aJ1嘉泰姆		MHzaJ1嘉泰姆
Oscillation FrequencyaJ1嘉泰姆	Vout=100%aJ1嘉泰姆 Vout=0VaJ1嘉泰姆		300aJ1嘉泰姆		KHzaJ1嘉泰姆
On Resistance of PMOSaJ1嘉泰姆	ISW=100mAaJ1嘉泰姆		0.2aJ1嘉泰姆		ΩaJ1嘉泰姆
ON Resistance of NMOSaJ1嘉泰姆	ISW=-100mAaJ1嘉泰姆		0.13aJ1嘉泰姆		ΩaJ1嘉泰姆
Peak Current LimitaJ1嘉泰姆	VIN= 3V, Vout=90% 3410AaJ1嘉泰姆		2.5aJ1嘉泰姆		AaJ1嘉泰姆
Peak Current LimitaJ1嘉泰姆	VIN= 3V, Vout=90% 3410aJ1嘉泰姆		2.5aJ1嘉泰姆		AaJ1嘉泰姆
RUN ThresholdaJ1嘉泰姆		0.30aJ1嘉泰姆	1.0aJ1嘉泰姆	1.50aJ1嘉泰姆	VaJ1嘉泰姆
RUN Leakage CurrentaJ1嘉泰姆			±0.01aJ1嘉泰姆	±1.0aJ1嘉泰姆	μAaJ1嘉泰姆
SW Leakage CurrentaJ1嘉泰姆	VRUN=0V,VIN=Vsw=5VaJ1嘉泰姆		±0.01aJ1嘉泰姆	±1.0aJ1嘉泰姆	μAaJ1嘉泰姆

八,相关芯片选择指南更多同类产品......aJ1嘉泰姆

低压同步DC-DC降压ICaJ1嘉泰姆
型号aJ1嘉泰姆	输入耐压aJ1嘉泰姆	输出电压aJ1嘉泰姆	输出电流aJ1嘉泰姆	反馈电压aJ1嘉泰姆	工作频率aJ1嘉泰姆	效率aJ1嘉泰姆	静态工作电流aJ1嘉泰姆	待机电流aJ1嘉泰姆	封装aJ1嘉泰姆
CXSD61036aJ1嘉泰姆	2.0-6.0VaJ1嘉泰姆	1.2V/1.8V/3.3V/可调输出aJ1嘉泰姆	0.7AaJ1嘉泰姆	0.6VaJ1嘉泰姆	1.5MHzaJ1嘉泰姆	96%aJ1嘉泰姆	20uAaJ1嘉泰姆		SOT-25aJ1嘉泰姆
CXSD61037aJ1嘉泰姆	2.5-6.0VaJ1嘉泰姆	可调输出aJ1嘉泰姆	1AaJ1嘉泰姆	0.6VaJ1嘉泰姆	1.5MHzaJ1嘉泰姆	96%aJ1嘉泰姆	20uAaJ1嘉泰姆		SOT-25aJ1嘉泰姆
CXSD61038aJ1嘉泰姆	2.0-6.0VaJ1嘉泰姆	可调输出aJ1嘉泰姆	1.0AaJ1嘉泰姆	0.6VaJ1嘉泰姆	1.5MaJ1嘉泰姆	96%aJ1嘉泰姆	20uAaJ1嘉泰姆	1uAaJ1嘉泰姆	SOT-25aJ1嘉泰姆
CXSD61038AaJ1嘉泰姆	2.3-6.0VaJ1嘉泰姆	可调输出aJ1嘉泰姆	1.2AaJ1嘉泰姆	0.6VaJ1嘉泰姆	1.5MaJ1嘉泰姆	96%aJ1嘉泰姆	35uAaJ1嘉泰姆	1uAaJ1嘉泰姆	SOT-25aJ1嘉泰姆
CXSD61038BaJ1嘉泰姆	2.3-6.0VaJ1嘉泰姆	可调输出aJ1嘉泰姆	1.5AaJ1嘉泰姆	0.6VaJ1嘉泰姆	1.5MaJ1嘉泰姆	96%aJ1嘉泰姆	35uAaJ1嘉泰姆	1uAaJ1嘉泰姆	SOT-25aJ1嘉泰姆
CXSD61039aJ1嘉泰姆	2.3-6.0VaJ1嘉泰姆	可调输出aJ1嘉泰姆	1.5AaJ1嘉泰姆	0.6VaJ1嘉泰姆	1.5MaJ1嘉泰姆	96%aJ1嘉泰姆	35uAaJ1嘉泰姆	1uAaJ1嘉泰姆	SOT-25aJ1嘉泰姆
CXSD61040aJ1嘉泰姆	2.0-6.5VaJ1嘉泰姆	可调输出aJ1嘉泰姆	2.0AaJ1嘉泰姆	0.6VaJ1嘉泰姆	1.5MaJ1嘉泰姆	96%aJ1嘉泰姆	40uAaJ1嘉泰姆	1uAaJ1嘉泰姆	SOT-26aJ1嘉泰姆
CXSD61040BaJ1嘉泰姆	2.6-6.0VaJ1嘉泰姆	可调输出aJ1嘉泰姆	2.0AaJ1嘉泰姆	0.6VaJ1嘉泰姆	3MaJ1嘉泰姆	96%aJ1嘉泰姆	30uAaJ1嘉泰姆	0.1uAaJ1嘉泰姆	SOT-25aJ1嘉泰姆
CXSD61042SaJ1嘉泰姆	2.3-6.5VaJ1嘉泰姆	可调输出aJ1嘉泰姆	2.0AaJ1嘉泰姆	0.6VaJ1嘉泰姆	1.5MaJ1嘉泰姆	96%aJ1嘉泰姆	40uAaJ1嘉泰姆	40uAaJ1嘉泰姆	SOP-8aJ1嘉泰姆
CXSD61043SaJ1嘉泰姆	2.3-6.5VaJ1嘉泰姆	可调输出aJ1嘉泰姆	3.0AaJ1嘉泰姆	0.6VaJ1嘉泰姆	1.5MaJ1嘉泰姆	95%aJ1嘉泰姆	40uAaJ1嘉泰姆	40uAaJ1嘉泰姆	ESOP-8aJ1嘉泰姆
CXSD61044DaJ1嘉泰姆	2.3V-6.5VaJ1嘉泰姆	可调输出aJ1嘉泰姆	1.3AaJ1嘉泰姆	0.6VaJ1嘉泰姆	1.5MaJ1嘉泰姆	96%aJ1嘉泰姆	35uAaJ1嘉泰姆	35uAaJ1嘉泰姆	DFN2*2-6aJ1嘉泰姆
CXSD61040DaJ1嘉泰姆	2.3V-6.5VaJ1嘉泰姆	可调输出aJ1嘉泰姆	2AaJ1嘉泰姆	0.6VaJ1嘉泰姆	1.5MaJ1嘉泰姆	95%aJ1嘉泰姆	40uAaJ1嘉泰姆	40uAaJ1嘉泰姆	DFN3*3-10aJ1嘉泰姆
CXSD61043aJ1嘉泰姆	2.5-6.0VaJ1嘉泰姆	可调输出aJ1嘉泰姆	3.0AaJ1嘉泰姆	0.6VaJ1嘉泰姆	1MHzaJ1嘉泰姆	95%aJ1嘉泰姆	40uAaJ1嘉泰姆	0.1uAaJ1嘉泰姆	SOT-25aJ1嘉泰姆

上一篇：CXSD61038B This device offers two operation modes,PWM control and PFM Mode switching control, which

下一篇：CXSD61040 1.5MHz, 2A Synchronous Step-Down Converter single-cell Lithium-ion batteries 2.3V to 6V In

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