The CXSD6123 is a high-efficiency, DC-to-DC step-down switching regulators, capable of delivering up to 1.2A of output current. The device operates from an input voltage range of 2.6V to 7.0V and
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目录
1.产品概述 2.产品特点 3.应用范围 4.技术规格书下载（产品PDF文档）
5.产品封装图 6.电路原理图 7.功能概述 8.相关产品
一,产品概述(General Description)
The CXSD6123B is a high-efficiency, DC-to-DC step-down
switching regulators, capable of delivering up to 1.2A of
output current. The device operates from an input voltage
range of 2.6V to 7.0V and provides an output voltage from
0.6V to VIN, making the CXSD6123B ideal for low voltage
power conversions.Running at a fixed frequency of 1.5MHz
allows the use of small external components, such as
ceramic input and output caps, as well as small inductors,
while still providing low output ripples. This low noise output
along with its excellent efficiency achieved by the internal
synchronous rectifier,making CXSD6123B an ideal green replacement for
large power consuming linear regulators. Internal soft-start
control circuitry reduces inrush current.Short-circuit and
thermal-overload improves design reliability.CXSD6123B is
housed in a SOT23-5 Package
二.产品特点(Features)
High Efficiency: Up to 96%
Capable of Delivering 1.2A
1.5MHz Switching Frequency
No External Schottky Diode Needed
Low dropout 100% Duty operation
Internal Compensation and Soft-Start
Current Mode control
0.6V Reference for Low Output voltages
Logic Control Shutdown (IQ<1uA)
Thermal shutdown and UVLO
Available in SOT23-5
三,应用范围 (Applications)
Cellular phones
Digital Cameras
MP3 and MP4 players
Set top boxes
Wireless and DSL Modems
USB supplied Devices in Notebooks
Portable Devices
四.技术规格书下载（产品PDF）
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！
五,产品封装图 (Package)
六.电路原理图
七,功能概述
|
Parameter |
Value |
|
|
Max Input Voltage |
7V |
|
|
Max Operating Junction Temperature(Tj) |
125°C |
|
|
Ambient Temperature(Ta) |
-40°C – 85°C |
|
|
Maximum Power Dissipation |
SOT23-5 |
400mW |
|
Storage Temperature(Ts) |
-40°C - 150°C |
|
|
Lead Temperature & Time |
260°C, 10S |
|
|
ESD (HBM) |
>2000V |
|
八,相关芯片选择指南
|
降压型DC/DC转换器(DC/DC Step-down Converter) |
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|
Part No. |
Power switching |
MODE |
VIN |
VOUT |
IQ |
FOSC |
Eff. |
|
Built-in MOSFETSynchronous |
PWM/PFM |
Max 7V |
ADJ |
35μA |
1.5MHz |
96% |
|
|
Built-in MOSFETSynchronous |
PWM/PFM |
2.6~6V |
ADJ |
40μA |
1.5MHz |
96% |
|
|
Built-in MOSFET Synchronous |
PWM/PFM |
2.6~7V |
ADJ |
50μA |
1.5MHz |
97% |
|
|
Built-in MOSFET Synchronous |
PWM/PFM |
2.5~6V |
ADJ |
40μA |
1.5MHz |
96% |
|
|
Built-in MOSFET Synchronous |
PWM/PFM |
2.5~5.5V |
ADJ |
50μA |
1.3MHz |
97% |
|
|
Built-in MOSFET Synchronous |
PWM/PFM |
2.6~6V |
ADJ |
30μA |
3MHz |
96% |
|
|
Built-in MOSFET Synchronous |
PWM/PFM |
2.6~5.5V |
ADJ |
50μA |
1.4MHz |
97% |
|
|
Built-in MOSFET Synchronous |
PWM/PFM |
3.5~16V |
ADJ |
0.4mA |
600KHz |
96% |
|
|
Built-in MOSFET Synchronous |
PWM/PFM |
3.5~16V |
ADJ |
0.4mA |
600KHz |
96% |
|
|
Built-in MOSFET Synchronous |
PWM/PFM |
4.2~18V |
ADJ |
0.8mA |
500KHz |
96% |
|
|
Built-in MOSFET Synchronous |
PWM/PFM |
4.7~20V |
ADJ |
50μA |
500KHz |
95% |
|
|
Built-in MOSFET Synchronous |
PWM/PFM |
4.7~20V |
ADJ |
50μA |
500KHz |
95% |
|
|
Built-in MOSFET Synchronous |
PWM/PFM |
4.5~20V |
ADJ |
50μA |
410KHz |
95% |
|
|
Built-in MOSFET Synchronous |
PWM/PFM |
4.5~18V |
ADJ |
80μA |
420KHz |
95% |
|
|
Built-in MOSFET Synchronous |
PWM/PFM |
4.5~18V |
ADJ |
80μA |
420KHz |
95% |
|
|
Built-in MOSFET Synchronous |
PWM/PFM |
4.5~18V |
ADJ |
80μA |
420KHz |
95% |
|
|
Built-in MOSFET |
PWM/PFM |
4~24V |
ADJ |
0.6mA |
1.4MHz |
90% |
|
|
Built-in MOSFET |
PWM/PFM |
4~38V |
ADJ |
0.6mA |
660KHz |
92% |
|
|
Built-in MOSFET |
PWM/PFM |
4~38V |
ADJ |
0.6mA |
660KHz |
92% |
|
|
Built-in MOSFET Synchronous |
PWM/PFM |
4~40V |
ADJ |
50μA |
2MHz |
93% |
|
|
Built-in MOSFET |
PWM/PFM |
4.2~40V |
ADJ |
200μA |
1.8MHz |
90% |
|
|
Built-in MOSFET Synchronous |
PWM/PFM |
4.5~24V |
ADJ |
50μA |
500KHz |
94% |
|
|
Built-in MOSFET Synchronous |
PWM |
5~20V |
0.923~15V ADJ |
60μA |
360KHz |
94% |
|
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