Supply current with no load is 40uA and drops to<1uA in shutdown. The 2.5V to 5.5V input voltage range makes the CXSD61043 ideally suited for single Li-Ion battery powered applications
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目录
产品概述 返回TOP
The CXSD61043 is a high-efficiency monolithic synchronous buck regulator using a constant frequency, current mode architecture. The device is available in an adjustable version. Supply current with no load is 40uA and drops to<1uA in shutdown. The 2.5V to 5.5V input voltage range makes the CXSD61043 ideally suited for single Li-Ion battery powered applications. 100% duty cycle provides low dropout operation, extending battery life in portable systems. PWM/PFM mode operation provides very low output ripple voltage for noise sensitive applications.Switching frequency is internally set at 1MHz, allowing the use of small surface mount inductors and capacitors. Low output voltages are easily supported with the 0.6V feedback reference voltage.
The CXSD61043 is offered in a low profile (1mm) 5-pin, thin SOT package, and is available in an adjustable version.
产品特点 返回TOP
High Efficiency: Up to 96%
2.5V to 5.5V Input Voltage Range
1MHz Constant Frequency Operation
No Schottky Diode Required
Low Dropout Operation:100% Duty Cycle
PFM Mode for High Efficiency in Light Load
Over temperature Protected
Low Quiescent Current: 40μA
Short Circuit Protection
Over Voltage Protection
Inrush Current Limit and Soft Start
SOT23-5、SOT23-6 package
Max Output Current:3A
应用范围 返回TOP
Cellular and Smart Phones
Wireless and DSL Modems
PDAs
Portable Instruments
Digital Still and Video Cameras
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
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低压同步DC-DC降压IC |
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型号 |
输入耐压 |
输出电压 |
输出电流 |
反馈电压 |
工作频率 |
静态工作电流 |
待机电流 |
封装 |
|
|
2.0-6.0V |
1.2V/1.8V/3.3V/可调输出 |
0.7A |
0.6V |
1.5MHz |
96% |
20uA |
SOT-25 |
||
|
2.5-6.0V |
可调输出 |
1A |
0.6V |
1.5MHz |
96% |
20uA |
SOT-25 |
||
|
2.0-6.0V |
可调输出 |
1.0A |
0.6V |
1.5M |
96% |
20uA |
1uA |
SOT-25 |
|
|
CXSD61038A |
2.3-6.0V |
可调输出 |
1.2A |
0.6V |
1.5M |
96% |
35uA |
1uA |
SOT-25 |
|
CXSD61038B |
2.3-6.0V |
可调输出 |
1.5A |
0.6V |
1.5M |
96% |
35uA |
1uA |
SOT-25 |
|
2.3-6.0V |
可调输出 |
1.5A |
0.6V |
1.5M |
96% |
35uA |
1uA |
SOT-25 |
|
|
2.0-6.5V |
可调输出 |
2.0A |
0.6V |
1.5M |
96% |
40uA |
1uA |
SOT-26 |
|
|
CXSD61040B |
2.6-6.0V |
可调输出 |
2.0A |
0.6V |
3M |
96% |
30uA |
0.1uA |
SOT-25 |
|
CXSD61042S |
2.3-6.5V |
可调输出 |
2.0A |
0.6V |
1.5M |
96% |
40uA |
40uA |
SOP-8 |
|
CXSD61043S |
2.3-6.5V |
可调输出 |
3.0A |
0.6V |
1.5M |
95% |
40uA |
40uA |
ESOP-8 |
|
CXSD61044D |
2.3V-6.5V |
可调输出 |
1.3A |
0.6V |
1.5M |
96% |
35uA |
35uA |
DFN2*2-6 |
|
CXSD61040D |
2.3V-6.5V |
可调输出 |
2A |
0.6V |
1.5M |
95% |
40uA |
40uA |
DFN3*3-10 |
|
2.5-6.0V |
可调输出 |
3.0A |
0.6V |
1MHz |
95% |
40uA |
0.1uA |
SOT-25 |
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