The CXSD6128 is a high efficiency synchronous, buck DC/DC converter. Its input voltage range is from 2.6V to 6V and provides an adjustable regulated output voltage from 0.6V to Vin while delivering
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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 CXSD6128 is a high efficiency synchronous, buck DC/DC converter. Its input
voltage range is from 2.6V to 6V and provides an adjustable regulated output
voltage from 0.6V to Vin while delivering up to 2A of output current.
The internal synchronous switches increase efficiency and eliminate
the need for an external Schottky diode. It runs at a fixed 3MHz frequency,which allows the use
of small inductor with L<1uH while maintaining a high efficiency and small output
voltage ripple.When Mode pin is connected to Gnd, the CXSD6128 is operating
in PFM/PWM auto-switch mode which enhance the efficiency at light-load. The
CXSD6128 is available in DFN2x2-8L and SOT23-5 packages.
二.产品特点(Features)
Adjustable Output Voltage, Vfb=0.6V
Maximum output current is 2A
Range of operation input voltage: Max 6V
Standby current: 30uA (typ.)
Line regulation: 0.1%/V (typ.)
Load regulation: 10mV (typ.)
High efficiency, up to 96%
Environment Temperature: -40°C~85°
三,应用范围 (Applications)
Power Management for 3G modem
Smart Phone
Tablet PC
Set Top Box
Other Battery Powered Device
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 |
6V |
|
|
Max Operating Junction Temperature(Tj) |
125°C |
|
|
Ambient Temperature(Ta) |
-40°C – 85°C |
|
|
Package Thermal Resistance (qjc) |
DFN2x2-8L |
25°C / W |
|
Power Dissipation |
SOT-23-5 |
250mW |
|
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) | |||||||
| Part No. | Power switching | MODE | VIN | VOUT | IQ | FOSC | Eff. |
| CXSD6123 | Built-in MOSFETSynchronous | PWM/PFM | Max 7V | ADJ | 35μA | 1.5MHz | 96% |
| CXSD6124 | Built-in MOSFETSynchronous | PWM/PFM | 2.6~6V | ADJ | 40μA | 1.5MHz | 96% |
| CXSD6125 | Built-in MOSFET Synchronous | PWM/PFM | 2.6~7V | ADJ | 50μA | 1.5MHz | 97% |
| CXSD6126 | Built-in MOSFET Synchronous | PWM/PFM | 2.5~6V | ADJ | 40μA | 1.5MHz | 96% |
| CXSD6127 | Built-in MOSFET Synchronous | PWM/PFM | 2.5~5.5V | ADJ | 50μA | 1.3MHz | 97% |
| CXSD6128 | Built-in MOSFET Synchronous | PWM/PFM | 2.6~6V | ADJ | 30μA | 3MHz | 96% |
| CXSD6129 | Built-in MOSFET Synchronous | PWM/PFM | 2.6~5.5V | ADJ | 50μA | 1.4MHz | 97% |
| CXSD6130 | Built-in MOSFET Synchronous | PWM/PFM | 3.5~16V | ADJ | 0.4mA | 600KHz | 96% |
| CXSD6131 | Built-in MOSFET Synchronous | PWM/PFM | 3.5~16V | ADJ | 0.4mA | 600KHz | 96% |
| CXSD6132 | Built-in MOSFET Synchronous | PWM/PFM | 4.2~18V | ADJ | 0.8mA | 500KHz | 96% |
| CXSD6133B | Built-in MOSFET Synchronous | PWM/PFM | 4.7~20V | ADJ | 50μA | 500KHz | 95% |
| CXSD6134 | Built-in MOSFET Synchronous | PWM/PFM | 4.7~20V | ADJ | 50μA | 500KHz | 95% |
| CXSD6136 | Built-in MOSFET Synchronous | PWM/PFM | 4.5~20V | ADJ | 50μA | 410KHz | 95% |
| CXSD6137 | Built-in MOSFET Synchronous | PWM/PFM | 4.5~18V | ADJ | 80μA | 420KHz | 95% |
| CXSD6138 | Built-in MOSFET Synchronous | PWM/PFM | 4.5~18V | ADJ | 80μA | 420KHz | 95% |
| CXSD6139 | Built-in MOSFET Synchronous | PWM/PFM | 4.5~18V | ADJ | 80μA | 420KHz | 95% |
| CXSD6140 | Built-in MOSFET | PWM/PFM | 4~24V | ADJ | 0.6mA | 1.4MHz | 90% |
| CXSD6141 | Built-in MOSFET | PWM/PFM | 4~38V | ADJ | 0.6mA | 660KHz | 92% |
| CXSD6141B | Built-in MOSFET | PWM/PFM | 4~38V | ADJ | 0.6mA | 660KHz | 92% |
| CXSD6142 | Built-in MOSFET Synchronous | PWM/PFM | 4~40V | ADJ | 50μA | 2MHz | 93% |
| CXSD6143 | Built-in MOSFET | PWM/PFM | 4.2~40V | ADJ | 200μA | 1.8MHz | 90% |
| CXSD6144C | Built-in MOSFET Synchronous | PWM/PFM | 4.5~24V | ADJ | 50μA | 500KHz | 94% |
| CXSD6145B | Built-in MOSFET Synchronous | PWM | 5~20V | 0.923~15V ADJ | 60μA | 360KHz | 94% |
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