CXSD62301是一个恒频、电流型的PWM降压变换器,它集成了一个主开关和一个同步整流器
不需要外部肖特基二极管的高效率。非常适合为使用单电池锂离子的便携式设备供电(锂)电池。输出电压可调低至0.6V
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产品概述 返回TOP
The CXSD62301 is a constant frequency, current mode PWM step-down converter.The device integrates a main switch and a synchronous rectifier
for high efficiency without an external Schottky diode. It is ideal for
powering portable equipment that runs from a single cell Lithium-Ion
(Li+) battery. The output voltage can be regulated as low as 0.6V.
The CXSD62301 can also run at 100% duty cycle for low dropout
operation,extending battery life in portable system. This device offers
two operation modes,PWM control and PFM Mode switching control,
which allows a high efficiency over the wider range of the load.The
CXSD62301 is offered in a low profile (1mm)5-pin, thin SOT package,
and is available in an adjustable version and fixed output voltage of
1.2V,1.5V, 1.8V,2.5V and 3.3V.固定频率、电流模式降压转换芯片。采用内部
同步开关,无需肖特基二极管就能提供高效的转换效率,可以调节输出电压最低0.6V,CXSD62301有PWM和PFM控制模式切换控制。封装形式:SOT23-5。
产品特点 返回TOP
High Efficiency: Up to 96%
1.5MHz Constant Frequency Operation
600mA Output Current
No Schottky Diode Required
2.3V to 5.5V Input Voltage Range
Short Circuit Protection
<1μA Shutdown Current
Tiny SOT23-5 Package
Output Voltage as Low as 0.6V
100% Duty Cycle in Dropout
Low Quiescent Current: 35μA
Slope Compensated Current Mode Control for Excellent Line and Load
Transient Response
Thermal Fault Protection
Inrush Current Limit and Soft Start
应用范围 返回TOP
Digital Still and Video Cameras
Wireless and DSL Modems
PDAs
MP3 Players
Cellular and Smart Phones
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
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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 |