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降压型芯片 > 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4h0嘉泰姆

1.产品概述         2.产品特点4h0嘉泰姆
3.应用范围       4.下载产品资料PDF文档 4h0嘉泰姆
5.产品封装图                     6.电路原理图             4h0嘉泰姆
7.功能概述       8.相关产品4h0嘉泰姆

一,产品概述(General Description)         4h0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 with4h0嘉泰姆
no load, and drops to < 1 A in shutdown.4h0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.4h0嘉泰姆
     The CXSD61034 converters are available in the industry standard DFN3*3-10L power packages(or upon request).4h0嘉泰姆
二.产品特点(Features)4h0嘉泰姆
Up to 95% Efficiency4h0嘉泰姆
Current mode operation for excellent line and4h0嘉泰姆
load transient response4h0嘉泰姆
Low quiescent current: 460 A4h0嘉泰姆
Low Switch on Resistance RDS(ON), Internal4h0嘉泰姆
Switch: 0.354h0嘉泰姆
Output voltage 0.6V 5.5V4h0嘉泰姆
Automatic PWM/PFM mode switching4h0嘉泰姆
No Schottky diode required4h0嘉泰姆
1.4MHz fixed frequency switching4h0嘉泰姆
Short-Circuit protection4h0嘉泰姆
Shutdown quiescent current: < 1 A4h0嘉泰姆
Low profile DFN3*3-10L package (lead-free4h0嘉泰姆
packaging is now available)4h0嘉泰姆
三,应用范围 (Applications)4h0嘉泰姆
Digital cameras and MP34h0嘉泰姆
Palmtop computers / PDAs4h0嘉泰姆
Cellular phones4h0嘉泰姆
Wireless handsets and DSL modems4h0嘉泰姆
PC cards4h0嘉泰姆
Portable media players4h0嘉泰姆
四,产品封装图 (Package)4h0嘉泰姆
4h0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)4h0嘉泰姆

五,电路原理图4h0嘉泰姆
4h0嘉泰姆
六.产品PDF文档 4h0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！4h0嘉泰姆

4h0嘉泰姆
4h0嘉泰姆
七,功能概述4h0嘉泰姆

SYMBOL4h0嘉泰姆	PARAMETER4h0嘉泰姆	CONDITIONS4h0嘉泰姆	MIN4h0嘉泰姆	TYP4h0嘉泰姆	MAX4h0嘉泰姆	UNITS4h0嘉泰姆
VOUT4h0嘉泰姆	Output Voltage4h0嘉泰姆	I OUT = 100mA, R2(4)/R1(3)=24h0嘉泰姆	1.754h0嘉泰姆	1.804h0嘉泰姆	1.854h0嘉泰姆	V4h0嘉泰姆
VIN4h0嘉泰姆	Input Voltage Range4h0嘉泰姆		2.54h0嘉泰姆		5.54h0嘉泰姆	V4h0嘉泰姆
VFB4h0嘉泰姆	Regulated Voltage4h0嘉泰姆	TA = 254h0嘉泰姆	0.58804h0嘉泰姆	0.64h0嘉泰姆	0.61204h0嘉泰姆	V4h0嘉泰姆
IFB4h0嘉泰姆	Feedback Current4h0嘉泰姆				±304h0嘉泰姆	nA4h0嘉泰姆
VFB4h0嘉泰姆	VREF4h0嘉泰姆	VIN=2.5V~5.5V4h0嘉泰姆		0.034h0嘉泰姆	0.44h0嘉泰姆	%/V4h0嘉泰姆
FOSC4h0嘉泰姆	Oscillator Frequency4h0嘉泰姆	VFB = 0.6V or VOUT = 100%4h0嘉泰姆	1.14h0嘉泰姆	1.44h0嘉泰姆	1.74h0嘉泰姆	MHz4h0嘉泰姆
IQ4h0嘉泰姆	Quiescent Current4h0嘉泰姆	VFB = 0.5V or VOUT = 90%, ILOAD = 0A4h0嘉泰姆		2004h0嘉泰姆	3004h0嘉泰姆	A4h0嘉泰姆
IS4h0嘉泰姆	Shutdown Current4h0嘉泰姆	VEN = 0V, VIN = 4.2V4h0嘉泰姆		0.14h0嘉泰姆	14h0嘉泰姆	A4h0嘉泰姆
IPK4h0嘉泰姆	Peak Inductor Current4h0嘉泰姆	VIN = 3V, VFB = 0.5V or VOUT = 90%,4h0嘉泰姆 Duty Cycle < 35%4h0嘉泰姆	0.754h0嘉泰姆	0.94h0嘉泰姆	14h0嘉泰姆	A4h0嘉泰姆
RPFET4h0嘉泰姆	RDS(ON) of P-Channel FET4h0嘉泰姆	ISW = 100mA4h0嘉泰姆		0.34h0嘉泰姆
RNFET4h0嘉泰姆	RDS(ON) of N-Channel FET4h0嘉泰姆	ISW = -100mA4h0嘉泰姆		0.394h0嘉泰姆
EFFI4h0嘉泰姆	Efficiency4h0嘉泰姆	When connected to ext. components4h0嘉泰姆 VIN=EN=3.6 V, IOUT=100mA4h0嘉泰姆		934h0嘉泰姆		%4h0嘉泰姆
VOUT4h0嘉泰姆	VOUT Line Regulation4h0嘉泰姆	VIN=2.5V~5.5V4h0嘉泰姆		0.034h0嘉泰姆	0.34h0嘉泰姆	%/V4h0嘉泰姆
VLOADREG4h0嘉泰姆	VOUT Load Regulation4h0嘉泰姆			0.334h0嘉泰姆		%4h0嘉泰姆

八,相关产品 更多同类产品......4h0嘉泰姆

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CXSD610314h0嘉泰姆	8V-40V4h0嘉泰姆	可调输出/带线损补偿4h0嘉泰姆	扩流6.0A/双通道带CC/CV模式4h0嘉泰姆	1.2V4h0嘉泰姆	100KHz4h0嘉泰姆	96%4h0嘉泰姆	10mA4h0嘉泰姆		ESOP-84h0嘉泰姆
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CXSD610324h0嘉泰姆	3.0V-6.0V4h0嘉泰姆	双路可调4h0嘉泰姆	1.5A4h0嘉泰姆	0.6V4h0嘉泰姆	1.5MHz4h0嘉泰姆	90%4h0嘉泰姆		10uA4h0嘉泰姆	ESOP-84h0嘉泰姆
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CXSD610344h0嘉泰姆	2.5V-6.0V4h0嘉泰姆	双路可调4h0嘉泰姆	0.9A4h0嘉泰姆	0.6V4h0嘉泰姆	1.4MHz4h0嘉泰姆	95%4h0嘉泰姆	200uA4h0嘉泰姆	0.1uA4h0嘉泰姆	DFN3*34h0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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