CXSD62298是一种高效的同步双通道脉冲宽度调制降压型在2.5V到5.5V的输入电压范围内工作的DC/DC转换器。它集成了两个PWM同步降压DC-DC变换器。100%占空比能力延长便携式设备的电池寿命,而静态电流(一个通道)是空载200μA,停机时降至<1μA,每个DC-DC变换器
独立启用输入和短路保护,允许多功能电源序列组合。
 
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产品概述 返回TOP
CXSD62298是高效同步,双通道PWM降压直流/直流转换器。在2.5 v的输入电压范围
下工作5.5 v。它集成了两种PWM同步降压直流-直流转换器。
The CXSD62298 is a high efficiency synchronous,dual channel PWM step-down
DC/DC converter working under an input voltage range of 2.5V to 5.5V. It integrates
two PWM synchronous step-down DC-DC converters. 100% duty cycle capability
extends battery life in portable devices,while the quiescent current (one channel) is
200μA with no load, and drops to<1μA in shutdown.Each DC-DC converter has
independent enable input and short-circuit protection allowing versatile power
sequence combination.The CXSD62298 converters are available in the industry
standard DFN3*3-10L packages (or upon request).
产品特点 返回TOP
 Up to 94% Efficiency
 Current Mode Operation for Excellent Line and Load Transient Response
 Output Voltage: 0.6V ~ 5.5V
 Low Quiescent Current (one Channel):200μA
 Up to 800mA Load Current
 Soft-start
 Automatic PWM/PFM Mode Switching
 No Schottky Diode Required
 1MHz Constant Frequency Operation
 Short-Circuit Protection
 Shutdown Quiescent Current: < 1μA
 DFN3*3-10L Package
应用范围 返回TOP
 Digital cameras and MP3
 Palmtop computers / PDAs
 Cellular phones
 Wireless handsets and DSL modems
 Portable media players
 PC cards
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产品封装图 返回TOP

电路原理图 返回TOP
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			 DC/DC降压转换器  | 
		|||||
| 
			 型号  | 
			
			 输入电压  | 
			
			 输出电压  | 
			
			 输出电流  | 
			
			 封装  | 
		|
| 
			 8V~30V  | 
			
			 1.2-16V  | 
			
			 2A  | 
			
			 93%  | 
			
			 SOP8  | 
		|
| 
			 2.5 v  | 
			
			 0.6~5.5 v  | 
			
			 800mA  | 
			
			 94%  | 
			
			 DFN3*3-10L  | 
		|
| 
			 5V~16V  | 
			
			 1.2V~16V  | 
			
			 2A  | 
			
			 92%  | 
			
			 SOP-8L  | 
		|
| 
			 2.3V~6V  | 
			
			 0.6V~6  | 
			
			 1300MA  | 
			
			 96%  | 
			
			 SOT23-5  | 
		|
| 
			 2.3V~5.5V  | 
			
			 0.6V~5.5  | 
			
			 600mA  | 
			
			 96%  | 
			
			 SOT23-5  | 
		|
| 
			 4.5 v~21 v  | 
			
			 0.8V~17.85V  | 
			
			 2A  | 
			
			 94%  | 
			
			 SOT-23-6  | 
		|
| 
			 2~6v  | 
			
			 0.6V  | 
			
			 800mA  | 
			
			 96%  | 
			
			 SOT23-5  | 
		|
| 
			 6.5  | 
			
			 1.5V~5.0V  | 
			
			 300mA  | 
			
			 96%  | 
			
			 SOT23-3、SOT89-3  | 
		|
◀ 上一篇:宽输入电压范8V~30V可编程开关频率500千赫CXSD62297高压输入电源的同步降压调节器转换频率可编程为100kHz至500kHz
下一篇▶:2A宽输入电源降压开关模式转换器CXSD62299效率高达92% 5V至16V输入输出可从1.2V调整到16V



