CXSD61034 high efficiency synchronous dual PWM step-down DC/DC converters working under an input vol

发布时间：2020-04-09 12:17:09 浏览次数：324 作者：oumao18 来源：嘉泰姆

摘要：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

目录3VP嘉泰姆

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

一,产品概述(General Description)         3VP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 with3VP嘉泰姆
no load, and drops to < 1 A in shutdown.3VP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.3VP嘉泰姆
     The CXSD61034 converters are available in the industry standard DFN3*3-10L power packages(or upon request).3VP嘉泰姆
二.产品特点(Features)3VP嘉泰姆
Up to 95% Efficiency3VP嘉泰姆
Current mode operation for excellent line and3VP嘉泰姆
load transient response3VP嘉泰姆
Low quiescent current: 460 A3VP嘉泰姆
Low Switch on Resistance RDS(ON), Internal3VP嘉泰姆
Switch: 0.353VP嘉泰姆
Output voltage 0.6V 5.5V3VP嘉泰姆
Automatic PWM/PFM mode switching3VP嘉泰姆
No Schottky diode required3VP嘉泰姆
1.4MHz fixed frequency switching3VP嘉泰姆
Short-Circuit protection3VP嘉泰姆
Shutdown quiescent current: < 1 A3VP嘉泰姆
Low profile DFN3*3-10L package (lead-free3VP嘉泰姆
packaging is now available)3VP嘉泰姆
三,应用范围 (Applications)3VP嘉泰姆
Digital cameras and MP33VP嘉泰姆
Palmtop computers / PDAs3VP嘉泰姆
Cellular phones3VP嘉泰姆
Wireless handsets and DSL modems3VP嘉泰姆
PC cards3VP嘉泰姆
Portable media players3VP嘉泰姆
四,产品封装图 (Package)3VP嘉泰姆
3VP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)3VP嘉泰姆

五,电路原理图3VP嘉泰姆
3VP嘉泰姆
六.产品PDF文档 3VP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！3VP嘉泰姆

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七,功能概述3VP嘉泰姆

SYMBOL3VP嘉泰姆	PARAMETER3VP嘉泰姆	CONDITIONS3VP嘉泰姆	MIN3VP嘉泰姆	TYP3VP嘉泰姆	MAX3VP嘉泰姆	UNITS3VP嘉泰姆
VOUT3VP嘉泰姆	Output Voltage3VP嘉泰姆	I OUT = 100mA, R2(4)/R1(3)=23VP嘉泰姆	1.753VP嘉泰姆	1.803VP嘉泰姆	1.853VP嘉泰姆	V3VP嘉泰姆
VIN3VP嘉泰姆	Input Voltage Range3VP嘉泰姆		2.53VP嘉泰姆		5.53VP嘉泰姆	V3VP嘉泰姆
VFB3VP嘉泰姆	Regulated Voltage3VP嘉泰姆	TA = 253VP嘉泰姆	0.58803VP嘉泰姆	0.63VP嘉泰姆	0.61203VP嘉泰姆	V3VP嘉泰姆
IFB3VP嘉泰姆	Feedback Current3VP嘉泰姆				±303VP嘉泰姆	nA3VP嘉泰姆
VFB3VP嘉泰姆	VREF3VP嘉泰姆	VIN=2.5V~5.5V3VP嘉泰姆		0.033VP嘉泰姆	0.43VP嘉泰姆	%/V3VP嘉泰姆
FOSC3VP嘉泰姆	Oscillator Frequency3VP嘉泰姆	VFB = 0.6V or VOUT = 100%3VP嘉泰姆	1.13VP嘉泰姆	1.43VP嘉泰姆	1.73VP嘉泰姆	MHz3VP嘉泰姆
IQ3VP嘉泰姆	Quiescent Current3VP嘉泰姆	VFB = 0.5V or VOUT = 90%, ILOAD = 0A3VP嘉泰姆		2003VP嘉泰姆	3003VP嘉泰姆	A3VP嘉泰姆
IS3VP嘉泰姆	Shutdown Current3VP嘉泰姆	VEN = 0V, VIN = 4.2V3VP嘉泰姆		0.13VP嘉泰姆	13VP嘉泰姆	A3VP嘉泰姆
IPK3VP嘉泰姆	Peak Inductor Current3VP嘉泰姆	VIN = 3V, VFB = 0.5V or VOUT = 90%,3VP嘉泰姆 Duty Cycle < 35%3VP嘉泰姆	0.753VP嘉泰姆	0.93VP嘉泰姆	13VP嘉泰姆	A3VP嘉泰姆
RPFET3VP嘉泰姆	RDS(ON) of P-Channel FET3VP嘉泰姆	ISW = 100mA3VP嘉泰姆		0.33VP嘉泰姆
RNFET3VP嘉泰姆	RDS(ON) of N-Channel FET3VP嘉泰姆	ISW = -100mA3VP嘉泰姆		0.393VP嘉泰姆
EFFI3VP嘉泰姆	Efficiency3VP嘉泰姆	When connected to ext. components3VP嘉泰姆 VIN=EN=3.6 V, IOUT=100mA3VP嘉泰姆		933VP嘉泰姆		%3VP嘉泰姆
VOUT3VP嘉泰姆	VOUT Line Regulation3VP嘉泰姆	VIN=2.5V~5.5V3VP嘉泰姆		0.033VP嘉泰姆	0.33VP嘉泰姆	%/V3VP嘉泰姆
VLOADREG3VP嘉泰姆	VOUT Load Regulation3VP嘉泰姆			0.333VP嘉泰姆		%3VP嘉泰姆

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