CXSD6141 CXSD6141B high-efficiency,and high frequency DC-to-DC step-down switching regulator, capable of delivering up to 0.7A of output current. With a fixed switching frequency of
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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 CXSD6141 CXSD6141B is a wide input range, high-efficiency,and high frequency DC-to-DC
step-down switching regulator, capable of delivering up to 0.7A of output current.
With a fixed switching frequency of 660KHz, this current mode PWM controlled
converter allows the use of small external components, such as ceramic input and
output caps, as well as small inductors.CXSD6141 also employs a proprietary control
scheme that switches the device into a power save mode during light load, thereby
extending the range of high efficiency operation. An OVP function protects the IC
itself and its downstream system against input voltage surges. With this OVP
function, the IC can stand off input voltage as high as 42V, making it an ideal
solution for industrial applications such as smart meters as well as automotive
applications.
In automotive systems, power comes from the battery, with its voltage typically
between 9V and 24V. Including cold crank and double battery jump-starts,
the minimum input voltage may be as low as 4V and the maximum up to 36V, with
even higher transient voltages. With these high input voltages, linear regulators cannot
be used for high supply currents without overheating the regulator. Instead, high efficiency
switching regulators such as CXSD6141 must be used to minimize thermal dissipation.
CXSD6141 is available SOT23-6 Packages.
二.产品特点(Features)
·Wide Input Operating Range from 4V to 38V
·Standoff Input Voltage: 42V
·High Efficiency at 12V In 5V Out: Up to 92%:
·High Efficiency PFM mode at light load
·Capable of Delivering 0.7A
·No External Compensation Needed
·Current Mode control
·Logic Control Shutdown
·Thermal shutdown and UVLO
·Available in SOT23-6 Package
三,应用范围 (Applications)
Smart Meters
Industrial Applications
Automotive Applications
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 |
|
|
Input Voltage Range |
-0.3V-42V |
|
|
Max Operating Junction Temperature(Tj) |
150°C |
|
|
SW, EN Voltage |
–0.3V to VIN+0.3V |
|
|
BST Voltage |
–0.3V to SW+6V |
|
|
FB Voltage |
–0.3V to 6V |
|
|
SW to ground curren |
Internally limited |
|
|
Operating Temperature(To) |
-40°C –85°C |
|
|
Package Thermal Resistance (èjc) |
SOT23-6 |
110°C / W |
|
Storage Temperature(Ts) |
-55°C - 150°C |
|
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 |
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