CXSD61034 high efficiency synchronous dual PWM step-down DC/DC converters working under an input voltage range of 2.5V to 5.5V

首页 > 产品中心 > 电源管理 > DC降压型转换器 > Buck降压型芯片 >CXSD61034 high efficiency synchronous dual PWM step-down DC/DC converters working under an input voltage range of 2.5V to 5.5V

CXSD61034 suitable for single Li-Lon battery-powered applications. 100% duty cycle capability extends battery life in portable devices, while the quiescent current is 200 A with
no load, and drops to < 1 A in shutdown

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目录etJ嘉泰姆

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

一,产品概述(General Description)         etJ嘉泰姆
      The CXSD61034 is high efficiency synchronous, dual PWM step-down DC/DC converters working under an input voltage range of 2.5V to 5.5V. This feature makes the CXSD61034 suitable for single Li-Lon battery-powered applications. 100% duty cycle capability extends battery life in portable devices, while the quiescent current is 200 A withetJ嘉泰姆
no load, and drops to < 1 A in shutdown.etJ嘉泰姆
    The internal synchronous switch is desired to increase efficiency without an external Schottky diode. The 1.4 MHz fixed switching frequency allows the using of tiny, low profile inductors and ceramic capacitors, which minimized overall solution footprint.etJ嘉泰姆
     The CXSD61034 converters are available in the industry standard DFN3*3-10L power packages(or upon request).etJ嘉泰姆
二.产品特点(Features)etJ嘉泰姆
Up to 95% EfficiencyetJ嘉泰姆
Current mode operation for excellent line andetJ嘉泰姆
load transient responseetJ嘉泰姆
Low quiescent current: 460 AetJ嘉泰姆
Low Switch on Resistance RDS(ON), InternaletJ嘉泰姆
Switch: 0.35etJ嘉泰姆
Output voltage 0.6V 5.5VetJ嘉泰姆
Automatic PWM/PFM mode switchingetJ嘉泰姆
No Schottky diode requiredetJ嘉泰姆
1.4MHz fixed frequency switchingetJ嘉泰姆
Short-Circuit protectionetJ嘉泰姆
Shutdown quiescent current: < 1 AetJ嘉泰姆
Low profile DFN3*3-10L package (lead-freeetJ嘉泰姆
packaging is now available)etJ嘉泰姆
三,应用范围 (Applications)etJ嘉泰姆
Digital cameras and MP3etJ嘉泰姆
Palmtop computers / PDAsetJ嘉泰姆
Cellular phonesetJ嘉泰姆
Wireless handsets and DSL modemsetJ嘉泰姆
PC cardsetJ嘉泰姆
Portable media playersetJ嘉泰姆
四,产品封装图 (Package)etJ嘉泰姆
etJ嘉泰姆
PINNUMBERDFN3*3-10LPIN NAMEFUNCTION1EN1ON/OFF Control 1(High Enable)2FB1Output feedback 13VIN2Input 24GNDGround5SW2Switch Output 26EN2ON/OFF Control 2(High Enable)7FB2Output feedback 28VIN1Input 19GNDGround10SW1Switch Output 1(责任编辑：oumao18)etJ嘉泰姆

五,电路原理图etJ嘉泰姆
etJ嘉泰姆
六.产品PDF文档 etJ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！etJ嘉泰姆

etJ嘉泰姆
etJ嘉泰姆
七,功能概述etJ嘉泰姆

SYMBOLetJ嘉泰姆	PARAMETERetJ嘉泰姆	CONDITIONSetJ嘉泰姆	MINetJ嘉泰姆	TYPetJ嘉泰姆	MAXetJ嘉泰姆	UNITSetJ嘉泰姆
VOUTetJ嘉泰姆	Output VoltageetJ嘉泰姆	I OUT = 100mA, R2(4)/R1(3)=2etJ嘉泰姆	1.75etJ嘉泰姆	1.80etJ嘉泰姆	1.85etJ嘉泰姆	VetJ嘉泰姆
VINetJ嘉泰姆	Input Voltage RangeetJ嘉泰姆		2.5etJ嘉泰姆		5.5etJ嘉泰姆	VetJ嘉泰姆
VFBetJ嘉泰姆	Regulated VoltageetJ嘉泰姆	TA = 25etJ嘉泰姆	0.5880etJ嘉泰姆	0.6etJ嘉泰姆	0.6120etJ嘉泰姆	VetJ嘉泰姆
IFBetJ嘉泰姆	Feedback CurrentetJ嘉泰姆				±30etJ嘉泰姆	nAetJ嘉泰姆
VFBetJ嘉泰姆	VREFetJ嘉泰姆	VIN=2.5V~5.5VetJ嘉泰姆		0.03etJ嘉泰姆	0.4etJ嘉泰姆	%/VetJ嘉泰姆
FOSCetJ嘉泰姆	Oscillator FrequencyetJ嘉泰姆	VFB = 0.6V or VOUT = 100%etJ嘉泰姆	1.1etJ嘉泰姆	1.4etJ嘉泰姆	1.7etJ嘉泰姆	MHzetJ嘉泰姆
IQetJ嘉泰姆	Quiescent CurrentetJ嘉泰姆	VFB = 0.5V or VOUT = 90%, ILOAD = 0AetJ嘉泰姆		200etJ嘉泰姆	300etJ嘉泰姆	AetJ嘉泰姆
ISetJ嘉泰姆	Shutdown CurrentetJ嘉泰姆	VEN = 0V, VIN = 4.2VetJ嘉泰姆		0.1etJ嘉泰姆	1etJ嘉泰姆	AetJ嘉泰姆
IPKetJ嘉泰姆	Peak Inductor CurrentetJ嘉泰姆	VIN = 3V, VFB = 0.5V or VOUT = 90%,etJ嘉泰姆 Duty Cycle < 35%etJ嘉泰姆	0.75etJ嘉泰姆	0.9etJ嘉泰姆	1etJ嘉泰姆	AetJ嘉泰姆
RPFETetJ嘉泰姆	RDS(ON) of P-Channel FETetJ嘉泰姆	ISW = 100mAetJ嘉泰姆		0.3etJ嘉泰姆
RNFETetJ嘉泰姆	RDS(ON) of N-Channel FETetJ嘉泰姆	ISW = -100mAetJ嘉泰姆		0.39etJ嘉泰姆
EFFIetJ嘉泰姆	EfficiencyetJ嘉泰姆	When connected to ext. componentsetJ嘉泰姆 VIN=EN=3.6 V, IOUT=100mAetJ嘉泰姆		93etJ嘉泰姆		%etJ嘉泰姆
VOUTetJ嘉泰姆	VOUT Line RegulationetJ嘉泰姆	VIN=2.5V~5.5VetJ嘉泰姆		0.03etJ嘉泰姆	0.3etJ嘉泰姆	%/VetJ嘉泰姆
VLOADREGetJ嘉泰姆	VOUT Load RegulationetJ嘉泰姆			0.33etJ嘉泰姆		%etJ嘉泰姆

八,相关产品 更多同类产品......etJ嘉泰姆

双通道高压同步DC-DC降压ICetJ嘉泰姆
型号etJ嘉泰姆	输入耐压etJ嘉泰姆	输出电压etJ嘉泰姆	输出电流etJ嘉泰姆	反馈etJ嘉泰姆电压etJ嘉泰姆	工作频率etJ嘉泰姆	效率etJ嘉泰姆	静态工etJ嘉泰姆作电流etJ嘉泰姆	待机etJ嘉泰姆电流 etJ嘉泰姆	封装etJ嘉泰姆
CXSD61028etJ嘉泰姆	8V-35VetJ嘉泰姆	可调输出/带线损补偿etJ嘉泰姆	扩流4.2A/双通道带CC/CV模式etJ嘉泰姆	1.21VetJ嘉泰姆	100-500K可调etJ嘉泰姆	95%etJ嘉泰姆	14mAetJ嘉泰姆	100uAetJ嘉泰姆	ESOP8etJ嘉泰姆
CXSD61029etJ嘉泰姆	8V-30VetJ嘉泰姆	可调输出/带线损补偿etJ嘉泰姆	4.0A/双通道带CC/CV模式etJ嘉泰姆	1.2VetJ嘉泰姆	100KHzetJ嘉泰姆	96%etJ嘉泰姆	10mAetJ嘉泰姆		ESOP-8etJ嘉泰姆
CXSD61030etJ嘉泰姆	8V-40VetJ嘉泰姆	可调输出/带线损补偿etJ嘉泰姆	扩流4.2A/双通道带CC/CV模式etJ嘉泰姆	1.2VetJ嘉泰姆	100KHzetJ嘉泰姆	95%etJ嘉泰姆	10mAetJ嘉泰姆		SOP-8etJ嘉泰姆
CXSD61031etJ嘉泰姆	8V-40VetJ嘉泰姆	可调输出/带线损补偿etJ嘉泰姆	扩流6.0A/双通道带CC/CV模式etJ嘉泰姆	1.2VetJ嘉泰姆	100KHzetJ嘉泰姆	96%etJ嘉泰姆	10mAetJ嘉泰姆		ESOP-8etJ嘉泰姆
双路低压同步DC-DC降压ICetJ嘉泰姆
型号etJ嘉泰姆	输入耐压etJ嘉泰姆	输出电压etJ嘉泰姆	输出电流etJ嘉泰姆	反馈etJ嘉泰姆电压etJ嘉泰姆	工作频率etJ嘉泰姆	效率etJ嘉泰姆	静态工etJ嘉泰姆作电流etJ嘉泰姆	待机etJ嘉泰姆电流 etJ嘉泰姆	封装etJ嘉泰姆
CXSD61032etJ嘉泰姆	3.0V-6.0VetJ嘉泰姆	双路可调etJ嘉泰姆	1.5AetJ嘉泰姆	0.6VetJ嘉泰姆	1.5MHzetJ嘉泰姆	90%etJ嘉泰姆		10uAetJ嘉泰姆	ESOP-8etJ嘉泰姆
CXSD61033etJ嘉泰姆	2.3V-6.0VetJ嘉泰姆	双路可调etJ嘉泰姆	2AetJ嘉泰姆	0.6VetJ嘉泰姆	1.5MHzetJ嘉泰姆	90%etJ嘉泰姆	150uAetJ嘉泰姆	0.1uAetJ嘉泰姆	ESOP-8etJ嘉泰姆
CXSD61034etJ嘉泰姆	2.5V-6.0VetJ嘉泰姆	双路可调etJ嘉泰姆	0.9AetJ嘉泰姆	0.6VetJ嘉泰姆	1.4MHzetJ嘉泰姆	95%etJ嘉泰姆	200uAetJ嘉泰姆	0.1uAetJ嘉泰姆	DFN3*3etJ嘉泰姆

◀ 上一篇:CXSD61033 1.5MHz constant frequency current mode, dual high-efficiency PWM step-down converter high current up t o 2A each channel from single-cell Lithium-ion batteries

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