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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目录
7.相关产品
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
技术规格书（产品PDF) 返回TOP
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产品封装图 返回TOP
电路原理图 返回TOP
相关芯片选择指南 返回TOP 更多同类产品......
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DC/DC降压转换器 |
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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 |
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