CXSD62305是一个恒定频率、电流模式的降压转换器。该装置集成了一个主开关和一个同步整流器，无需外部肖特基二极管。它是为从单个电池运行的便携式设备供电的理想选择
锂离子电池。输出电压可调节为0.6V
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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
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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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