CXSD62228B可调软启动可防止开启时的涌入电流，而在关闭模式下，电源电流降到1μa，在一个SOP8-PP包中提供，提供了一个带有最少外部组件的verycompact解决方案
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产品概述 返回TOP
The CXSD62228A CXSD62228B is a monolithic synchronous buck regulator. The device integrates two 130mΩ MOSFETs, and provides3.2A of continuous load current over a wide input voltage of 4.75V to 23V.Current mode control provides fast transient response and cycle-by-cycle current limit.An adjustable soft-start prevents inrush current at turn-on, andin shutdown mode the supply current drops to 1μA.This device, available in an SOP8-PP package, provides a verycompact solution with minimal external components.
产品特点 返回TOP
* 3.2A Output Current
* Wide 4.75V to 23V Operating Input Range
* Integrated 130mΩ Power MOSFET Switches
* Output Adjustable from 0.923V to 20V
* Up to 93% Efficiency
* Programmable Soft-Start
* Stable with Low ESR Ceramic Output Capacitors
* Fixed 340KHz Frequency
* Cycle-by-Cycle Over Current Protection
* Input Under Voltage Lockout
应用范围 返回TOP
* Distributed Power Systems
* Networking Systems
* FPGA, DSP, ASIC Power Supplies
* Green Electronics/ Appliances
* Notebook Computers
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产品封装图 返回TOP
电路原理图 返回TOP
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PWM Buck Converter（synchronous) |
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Part No. |
Input |
Output Voltage |
Current |
Frequency |
Efficiency |
Package |
Precision |
OCP |
OTP |
SP |
|
Voltage |
MAX |
|||||||||
|
40V |
ADJ |
600mA |
1/2MHZ |
85% |
SOT23-6 |
2% |
Y |
Y |
Y |
|
|
CXSD62226A |
23V |
ADJ |
2A |
340KHZ |
93% |
SOP8 |
2% |
Y |
Y |
Y |
|
CXSD62227A |
23V |
ADJ |
2.2A |
340KHZ |
93% |
SOP8-PP |
2% |
Y |
Y |
Y |
|
CXSD62228A |
23V |
ADJ |
3.2A |
340KHZ |
93% |
SOP8-PP |
2% |
Y |
Y |
Y |
|
CXSD62228B |
23V |
ADJ(PSM) |
3.2A |
340KHZ |
93% |
SOP8-PP |
2% |
Y |
Y |
Y |
|
32V |
ADJ |
2A |
340KHZ |
93% |
SOP8-PP |
2% |
Y |
Y |
Y |
|
|
CXSD62229A |
32V |
ADJ |
2A |
600KHZ |
93% |
SOP8-PP |
2% |
Y |
Y |
Y |
|
32V |
ADJ |
1.6A |
340KHZ |
93% |
SOP8 |
2% |
Y |
Y |
Y |
|
|
32V |
ADJ |
2.2A |
340KHZ |
93% |
SOP8-PP |
2% |
Y |
Y |
Y |
|
|
CXSD62231A |
32V |
ADJ |
2.2A |
600KHZ |
93% |
SOP8-PP |
2% |
Y |
Y |
Y |
|
CXSD62231B |
22V |
ADJ |
3A |
600KHZ |
93% |
SOP8-PP |
2% |
Y |
Y |
Y |
|
32V |
ADJ |
2.2A |
200KHZ |
93% |
SOP8-PP |
2% |
Y |
Y |
Y |
|
|
32V |
ADJ |
3A |
340KHZ |
93% |
SOP8-PP |
2% |
Y |
Y |
Y |
|
|
5.5V |
1.2/.15/1.8/ADJ |
800mA |
1.5MHZ |
96% |
SOT23-5 |
2% |
Y |
Y |
Y |
|
|
5.5V |
1.2/.15/1.8/ADJ |
1.2A |
1.5MHZ |
96% |
SOT23-5 |
2% |
Y |
Y |
Y |
|
|
CXSD62235B |
5.5V |
1.2/.15/1.8/ADJ |
1.2A |
1.5MHZ |
96% |
SOT23-5 |
2% |
Y |
Y |
Y |
|
5.5V |
1.2/.15/1.8/ADJ |
1.2A |
1.5MHZ |
96% |
SOT23-5 |
2% |
Y |
Y |
Y |
|
|
5.5V |
1.2/.15/1.8/ADJ |
2A |
1.5MHZ |
96% |
SOT23-5 |
2% |
Y |
Y |
Y |
|
|
5.5V |
1.2/.15/1.8/ADJ |
1.5A*2 |
1.5MHZ |
96% |
SOP8 |
2% |
Y |
Y |
Y |
|
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