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1.5MHz恒定频率同步电流模式降压转换器CXSD62305 PWM控制和PFM模式切换800mA输出电流 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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目录7.相关产品 产品概述 返回TOP The CXSD62305 is a constant frequency, current mode 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 CXSD62305 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 CXSD62305 is offered in a low profile 5-pin, SOT package, and is available in an adjustable version. 产品特点 返回TOP
High Efficiency: Up to 96% 1.5MHz Constant Frequency Operation 800mA Output Current No Schottky Diode Required 2V to 6V Input Voltage Range Output Voltage as Low as 0.6V PFM Mode for High Efficiency in Light Load 100% Duty Cycle in Dropout Operation Low Quiescent Current: 20μA Slope Compensated Current Mode Control for Excellent Line and Load Transient Response Short Circuit Protection Thermal Fault Protection Inrush Current Limit and Soft Start <1μA Shutdown Current SOT23-5 package 应用范围 返回TOP
Cellular and Smart Phones Wireless and DSL Modems PDAs Portable Instruments Digital Still and Video Cameras DTV 技术规格书（产品PDF) 返回TOP 需要详细的PDF规格书请扫一扫微信联系我们，还可以获得免费样品以及技术支持！ 产品封装图 返回TOP
电路原理图 返回TOP
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单输出降压转换器Single Output Step Down Regulator (Power Switch Integrated) |
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Part Number |
Function |
Vin(V) |
Iout |
Fsw |
VREF |
HSFET Ron(Ω) |
LSFET Ron(Ω) |
Special Function |
Constnt current |
Package |
|
高效同步降压 |
2～6 |
0.8A |
1.5MHz |
0.6V |
0.3 |
0.3 |
QR |
Int SS/Comp |
SOT23-5 |
|
|
高效同步降压 |
2～6 |
0.8A |
1.5MHz |
0.6V |
0.3 |
0.3 |
QR |
Int SS/Comp |
SOT23-5 |
|
|
高效同步降压 |
2.3～6 |
1.5A |
1.5MHz |
0.6V |
0.13 |
0.1 |
QR |
Int SS/Comp |
SOT23-5 |
|
|
CXSD62307L |
高效同步降压 |
2.3～6 |
1.3A |
1.5MHz |
0.6V |
0.13 |
0.1 |
QR |
Int SS/Comp |
SOT23-5 |
|
高效同步降压 |
2.3～6 |
1.3A |
1.5MHz |
0.6V |
0.15 |
0.12 |
QR |
Int SS/Comp |
DFN2x2-6 |
|
|
高效同步降压 |
2.3～6 |
2A |
1.5MHz |
0.6V |
0.1 |
0.09 |
QR |
Int SS/Comp |
DFN3x3-10 |
|
|
CXSD62309SP |
高效同步降压 |
2.3～6 |
2A |
1.5MHz |
0.6V |
0.1 |
0.09 |
QR |
Int SS/Comp |
SOP8 |
|
CXSD62309B/C/D |
高效同步降压 |
2.3～6 |
2A |
1.5MHz |
0.6V |
0.1 |
0.08 |
QR |
Int SS/Comp |
SOT23-6 |
|
高效同步降压 |
2.3～6 |
3A |
1.5MHz |
0.6V |
0.09 |
0.08 |
QR |
Int SS/Comp |
ESOP8 |
|
|
高效同步降压 |
4.5～18 |
1.2A |
1.2/0.6MHz |
0.923V |
0.15 |
0.1 |
QR |
Int SS/Comp |
SOT23-6 |
|
|
高效同步降压 |
4.5～18 |
2A |
1.2/0.6MHz |
0.923V |
0.1 |
0.09 |
QR |
Int SS/Comp |
SOP8 |
|
|
高效同步降压 |
4.5～18 |
3A |
1.2/0.6MHz |
0.923V |
0.08 |
0.08 |
QR |
Int SS/Comp |
ESOP8 |
|
|
高效同步降压 |
4～15 |
1A |
0.6MHz |
0.6V |
0.12 |
0.09 |
QR |
Int SS/Comp |
SOT23-6 |
|
|
高效同步降压 |
2～6 |
0.8A |
1.5MHz |
0.6V |
0.35 |
0.3 |
QR |
Int SS/Comp |
SOT23-5 |
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