CXSD6142 current mode monolithic buck switching regulator ,Operating with an input range of 4.7V~40V, delivers 600mA of continuous output current with two integrated N-Channel MOSFETs
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[ 产品资料下载 ]
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 CXSD6142 is a current mode monolithic buck switching regulator. Operating with
an input range of 4.7V~40V, the CXSD6142 delivers 600mA of continuous output
current with two integrated N-Channel MOSFETs. The internal synchronous
power switches provide high efficiency without the use of an external Schottky
diode. At light loads, the regulator operates in low frequency to maintain high
efficiency and low output ripple. Current mode control provides tight load transient
response and cycle-by-cycle current limit.The JTMB9341 guarantees robustness
with short-circuit protection,thermal protection, current run-away protection, and
input under voltage lockout. The CXSD6142 is available in 6-pin SOT23-6 package,
which provides a compact solution with minimal external components.
二.产品特点(Features)
4.7V to 40V operating input range
600mA output current
Up to 93% efficiency
High efficiency (>78%) at light load
Internal Soft-Start
2MHz switching frequency
Input under voltage lockout
Available in SOT23-6 package
Current run-away protection
Short circuit protection
Thermal protection
三,应用范围 (Applications)
Distributed Power Systems
Automotive Systems
High Voltage Power Conversion
Industrial Power Systems
Battery Powered Systems
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
|
VIN = 24V, TA = 25oC, unless otherwise stated. |
||||||
|
Item |
Symbol |
Condition |
Min. |
Typ. |
Max. |
Units |
|
VIN Undervoltage Lockout Thershold |
VIN_MIN |
VIN falling |
4.2 |
V |
||
|
VIN Undervoltage Lockout Hysteresis |
VIN_MIN_HYST |
VIN rising |
160 |
mV |
||
|
Shutdown Supply Current |
ISD |
VEN=0V |
0.07 |
1 |
μA |
|
|
Supply Current |
IQ |
VEN=5V, VFB=1V |
50 |
μA |
||
|
Feedback Voltage |
VFB |
4.7V<VVIN<40V |
776 |
800 |
824 |
mV |
|
Top Switch Resistance |
RDS(ON)T |
500 |
mΩ |
|||
|
Bottom Switch Resistance |
RDS(ON)B |
220 |
mΩ |
|||
|
Top Switch Leakage Current |
ILEAK_TOP |
VIN=40V, VEN=0V, VSW=0V |
1 |
uA |
||
|
Bottom Switch Leakage Current |
ILEAK_BOT |
VIN= VSW = 40V, VEN=0V |
1 |
uA |
||
|
Top Switch Current Limit |
ILIM_TOP |
Minimum Duty Cycle |
1 |
A |
||
|
Switch Frequency |
fSW |
2 |
MHz |
|||
|
Minimum On Time |
TON_MIN |
80 |
ns |
|||
|
Minimum Off Time |
TOFF_MIN |
VFB=0V |
100 |
ns |
||
|
EN shut down threshold voltage |
VEN_TH |
VEN falling, FB=0V |
1.2 |
V |
||
|
EN shut down hysteresis |
VEN_HYST |
VEN rising, FB=0V |
40 |
mV |
||
|
Thermal Shutdown |
TTSD |
135 |
°C |
|||
|
Thermal Shutdown hysteresis |
TTSD_HYST |
15 |
°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 |
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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