The CXSD62309B is a 1.5MHz constant frequency,current mode step-down converter.
It is ideal for portable equipment requiring very high current up to 2A from single-cell
Lithium-ion batteries while still achieving over 90% efficiency during peak load conditions.
The CXSD62309B also can run at 100% duty cycle for low dropout operation, extending
battery life in portable systems while light load operation provides very low output ripple
for noise sensitive applications. The CXSD62309B can supply up to 2A output load current
from a 2.3V to 6V input voltage and the output voltage can be regulated as low as 0.6V.
The high switching frequency minimizes the size of external components while keeping
switching losses low. The internal slope compensation setting allows the device to operate
with smaller inductor values to optimize size and provide efficient operation. The
CXSD62309B is offered in a low profile 6-pin, SOT package, and is available in an adjustable
version. 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.
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目录
7.相关产品
产品概述 返回TOP
The CXSD62309B is a 1.5MHz constant frequency,current mode step-down converter.
It is ideal for portable equipment requiring very high current up to 2A from single-cell
Lithium-ion batteries while still achieving over 90% efficiency during peak load conditions.
The CXSD62309B also can run at 100% duty cycle for low dropout operation, extending
battery life in portable systems while light load operation provides very low output ripple
for noise sensitive applications. The CXSD62309B can supply up to 2A output load current
from a 2.3V to 6V input voltage and the output voltage can be regulated as low as 0.6V.
The high switching frequency minimizes the size of external components while keeping
switching losses low. The internal slope compensation setting allows the device to operate
with smaller inductor values to optimize size and provide efficient operation. The
CXSD62309B is offered in a low profile 6-pin, SOT package, and is available in an adjustable
version. 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.
产品特点 返回TOP
High Efficiency: Up to 96%
1.5MHz Constant Frequency Operation
2A Output Current
No Schottky Diode Required
2.3V 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: 40μA
Short Circuit Protection
Thermal Fault Protection
Inrush Current Limit and Soft Start
<1μA Shutdown Current
SOT23-6 package
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
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
相关芯片选择指南 返回TOP 更多同类产品......
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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 |
|
|
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 |
|
|
高效同步降压 |
2.3～6 |
2A |
1.5MHz |
0.6V |
0.1 |
0.09 |
QR |
Int SS/Comp |
SOP8 |
|
|
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 |
|
