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

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发表时间：2020-04-09浏览次数：332

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

目录nct嘉泰姆

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

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一,产品概述(General Description) nct嘉泰姆

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

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

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

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

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

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

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

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

二.产品特点(Features)nct嘉泰姆

High Efficiency: Up to 96%nct嘉泰姆
1.0MHz Constant Frequency Operationnct嘉泰姆
2A Output Currentnct嘉泰姆
No Schottky Diode Requirednct嘉泰姆
2.3V to 6V Input Voltage Rangenct嘉泰姆
Output Voltage as Low as 0.6Vnct嘉泰姆
PFM Mode for High Efficiency in Light Loadnct嘉泰姆
100% Duty Cycle in Dropout Operationnct嘉泰姆
Low Quiescent Current: 40μAnct嘉泰姆
Short Circuit Protectionnct嘉泰姆
Thermal Fault Protectionnct嘉泰姆
Inrush Current Limit and Soft Startnct嘉泰姆
Input overvoltage protection(OVP)nct嘉泰姆
<1μA Shutdown Currentnct嘉泰姆
SOT23-5 packagenct嘉泰姆
三,应用范围 (Applications)nct嘉泰姆

Cellular and Smart Phonesnct嘉泰姆
Wireless and DSL Modemsnct嘉泰姆
PDAsnct嘉泰姆
Portable Instrumentsnct嘉泰姆
Digital Still and Video Camerasnct嘉泰姆
PC Cardsnct嘉泰姆
四.技术规格书下载（产品PDF）nct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！nct嘉泰姆

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五,产品封装图 (Package)nct嘉泰姆

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PINnct嘉泰姆	NAMEnct嘉泰姆	FUNCTIONnct嘉泰姆
1nct嘉泰姆	RUNnct嘉泰姆	Chip Enable Pin. Drive RUN above 1.5V to turn on the part. Drivenct嘉泰姆 RUN below 0.3V to turn it off. Do not leave RUN floating.nct嘉泰姆
2nct嘉泰姆	GNDnct嘉泰姆	Ground Pinnct嘉泰姆
3nct嘉泰姆	SWnct嘉泰姆	Power Switch Output. It is the switch node connection to Inductor.nct嘉泰姆 This pin connects to the drains of the internal P-ch and N-ch MOSFET switches.nct嘉泰姆
4nct嘉泰姆	VINnct嘉泰姆	Power Supply Input. Must be closely decoupled to GND with a 10μF or greater ceramic capacitor.nct嘉泰姆
5nct嘉泰姆	VOUTnct嘉泰姆	Output Voltage Feedback Pin. An internal resistive divider divides the output voltage down for comparison to the internal reference voltage.nct嘉泰姆

六.电路原理图nct嘉泰姆

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七,功能概述nct嘉泰姆

Parameternct嘉泰姆	Conditionsnct嘉泰姆	MINnct嘉泰姆	TYPnct嘉泰姆	MAXnct嘉泰姆	unitnct嘉泰姆
Input Voltage Rangenct嘉泰姆		2.3nct嘉泰姆		6.0nct嘉泰姆	Vnct嘉泰姆
UVLO Thresholdnct嘉泰姆		1.7nct嘉泰姆	1.9nct嘉泰姆	2.1nct嘉泰姆	Vnct嘉泰姆
Input DC Supply Currentnct嘉泰姆 PWM Modenct嘉泰姆 PFM Modenct嘉泰姆 Shutdown Modenct嘉泰姆	(Note 4)nct嘉泰姆 Vout = 90%, Iload=0mAnct嘉泰姆 Vout = 105%, Iload=0mAnct嘉泰姆 VRUN = 0V, VIN=4.2Vnct嘉泰姆		140nct嘉泰姆 35nct嘉泰姆 0.1nct嘉泰姆	300nct嘉泰姆 70nct嘉泰姆 1.0nct嘉泰姆	μAnct嘉泰姆 μAnct嘉泰姆 μAnct嘉泰姆 μAnct嘉泰姆
Regulated Feedback Voltagenct嘉泰姆	TA = 25°Cnct嘉泰姆	0.588nct嘉泰姆	0.600nct嘉泰姆	0.612nct嘉泰姆	Vnct嘉泰姆
	TA = 0°C ≤ TA ≤ 85°Cnct嘉泰姆	0.586nct嘉泰姆	0.600nct嘉泰姆	0.613nct嘉泰姆	Vnct嘉泰姆
	TA = -40°C ≤ TA ≤ 85°Cnct嘉泰姆	0.585nct嘉泰姆	0.600nct嘉泰姆	0.615nct嘉泰姆	Vnct嘉泰姆
Reference Voltage Linenct嘉泰姆 Regulationnct嘉泰姆	Vin=2.3V to 6.0Vnct嘉泰姆		0.04nct嘉泰姆	0.40nct嘉泰姆	%/Vnct嘉泰姆
Output Voltage Linenct嘉泰姆 Regulationnct嘉泰姆	VIN = 2.3V to 6.0Vnct嘉泰姆		0.04nct嘉泰姆	0.4nct嘉泰姆	%nct嘉泰姆
Output Voltage Loadnct嘉泰姆 Regulationnct嘉泰姆			0.5nct嘉泰姆		%nct嘉泰姆
Oscillation Frequencynct嘉泰姆	Vout=100%nct嘉泰姆 Vout=0Vnct嘉泰姆		1.0nct嘉泰姆		MHznct嘉泰姆
Oscillation Frequencynct嘉泰姆	Vout=100%nct嘉泰姆 Vout=0Vnct嘉泰姆		300nct嘉泰姆		KHznct嘉泰姆
On Resistance of PMOSnct嘉泰姆	ISW=100mAnct嘉泰姆		0.2nct嘉泰姆		Ωnct嘉泰姆
ON Resistance of NMOSnct嘉泰姆	ISW=-100mAnct嘉泰姆		0.13nct嘉泰姆		Ωnct嘉泰姆
Peak Current Limitnct嘉泰姆	VIN= 3V, Vout=90% 3410Anct嘉泰姆		2.5nct嘉泰姆		Anct嘉泰姆
Peak Current Limitnct嘉泰姆	VIN= 3V, Vout=90% 3410nct嘉泰姆		2.5nct嘉泰姆		Anct嘉泰姆
RUN Thresholdnct嘉泰姆		0.30nct嘉泰姆	1.0nct嘉泰姆	1.50nct嘉泰姆	Vnct嘉泰姆
RUN Leakage Currentnct嘉泰姆			±0.01nct嘉泰姆	±1.0nct嘉泰姆	μAnct嘉泰姆
SW Leakage Currentnct嘉泰姆	VRUN=0V,VIN=Vsw=5Vnct嘉泰姆		±0.01nct嘉泰姆	±1.0nct嘉泰姆	μAnct嘉泰姆

八,相关芯片选择指南更多同类产品......nct嘉泰姆

低压同步DC-DC降压ICnct嘉泰姆
型号nct嘉泰姆	输入耐压nct嘉泰姆	输出电压nct嘉泰姆	输出电流nct嘉泰姆	反馈电压nct嘉泰姆	工作频率nct嘉泰姆	效率nct嘉泰姆	静态工作电流nct嘉泰姆	待机电流nct嘉泰姆	封装nct嘉泰姆
CXSD61036nct嘉泰姆	2.0-6.0Vnct嘉泰姆	1.2V/1.8V/3.3V/可调输出nct嘉泰姆	0.7Anct嘉泰姆	0.6Vnct嘉泰姆	1.5MHznct嘉泰姆	96%nct嘉泰姆	20uAnct嘉泰姆		SOT-25nct嘉泰姆
CXSD61037nct嘉泰姆	2.5-6.0Vnct嘉泰姆	可调输出nct嘉泰姆	1Anct嘉泰姆	0.6Vnct嘉泰姆	1.5MHznct嘉泰姆	96%nct嘉泰姆	20uAnct嘉泰姆		SOT-25nct嘉泰姆
CXSD61038nct嘉泰姆	2.0-6.0Vnct嘉泰姆	可调输出nct嘉泰姆	1.0Anct嘉泰姆	0.6Vnct嘉泰姆	1.5Mnct嘉泰姆	96%nct嘉泰姆	20uAnct嘉泰姆	1uAnct嘉泰姆	SOT-25nct嘉泰姆
CXSD61038Anct嘉泰姆	2.3-6.0Vnct嘉泰姆	可调输出nct嘉泰姆	1.2Anct嘉泰姆	0.6Vnct嘉泰姆	1.5Mnct嘉泰姆	96%nct嘉泰姆	35uAnct嘉泰姆	1uAnct嘉泰姆	SOT-25nct嘉泰姆
CXSD61038Bnct嘉泰姆	2.3-6.0Vnct嘉泰姆	可调输出nct嘉泰姆	1.5Anct嘉泰姆	0.6Vnct嘉泰姆	1.5Mnct嘉泰姆	96%nct嘉泰姆	35uAnct嘉泰姆	1uAnct嘉泰姆	SOT-25nct嘉泰姆
CXSD61039nct嘉泰姆	2.3-6.0Vnct嘉泰姆	可调输出nct嘉泰姆	1.5Anct嘉泰姆	0.6Vnct嘉泰姆	1.5Mnct嘉泰姆	96%nct嘉泰姆	35uAnct嘉泰姆	1uAnct嘉泰姆	SOT-25nct嘉泰姆
CXSD61040nct嘉泰姆	2.0-6.5Vnct嘉泰姆	可调输出nct嘉泰姆	2.0Anct嘉泰姆	0.6Vnct嘉泰姆	1.5Mnct嘉泰姆	96%nct嘉泰姆	40uAnct嘉泰姆	1uAnct嘉泰姆	SOT-26nct嘉泰姆
CXSD61040Bnct嘉泰姆	2.6-6.0Vnct嘉泰姆	可调输出nct嘉泰姆	2.0Anct嘉泰姆	0.6Vnct嘉泰姆	3Mnct嘉泰姆	96%nct嘉泰姆	30uAnct嘉泰姆	0.1uAnct嘉泰姆	SOT-25nct嘉泰姆
CXSD61042Snct嘉泰姆	2.3-6.5Vnct嘉泰姆	可调输出nct嘉泰姆	2.0Anct嘉泰姆	0.6Vnct嘉泰姆	1.5Mnct嘉泰姆	96%nct嘉泰姆	40uAnct嘉泰姆	40uAnct嘉泰姆	SOP-8nct嘉泰姆
CXSD61043Snct嘉泰姆	2.3-6.5Vnct嘉泰姆	可调输出nct嘉泰姆	3.0Anct嘉泰姆	0.6Vnct嘉泰姆	1.5Mnct嘉泰姆	95%nct嘉泰姆	40uAnct嘉泰姆	40uAnct嘉泰姆	ESOP-8nct嘉泰姆
CXSD61044Dnct嘉泰姆	2.3V-6.5Vnct嘉泰姆	可调输出nct嘉泰姆	1.3Anct嘉泰姆	0.6Vnct嘉泰姆	1.5Mnct嘉泰姆	96%nct嘉泰姆	35uAnct嘉泰姆	35uAnct嘉泰姆	DFN2*2-6nct嘉泰姆
CXSD61040Dnct嘉泰姆	2.3V-6.5Vnct嘉泰姆	可调输出nct嘉泰姆	2Anct嘉泰姆	0.6Vnct嘉泰姆	1.5Mnct嘉泰姆	95%nct嘉泰姆	40uAnct嘉泰姆	40uAnct嘉泰姆	DFN3*3-10nct嘉泰姆
CXSD61043nct嘉泰姆	2.5-6.0Vnct嘉泰姆	可调输出nct嘉泰姆	3.0Anct嘉泰姆	0.6Vnct嘉泰姆	1MHznct嘉泰姆	95%nct嘉泰姆	40uAnct嘉泰姆	0.1uAnct嘉泰姆	SOT-25nct嘉泰姆

上一篇：CXSD61043S high current up to 2A from single-cell Lithium-ion batteries

下一篇：CXSD61040D 2A Output Current 2.3V to 6V Input Voltage Range PFM Mode for High Efficiency in Light Lo

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