CXMD3261 is a DC/DC Buck Synchronous with four current limit pins suitable for many multi‐output applications. It is designed to allow for operating a wide supply voltage range from 9V to 40V. It has both high‐side and low‐side drivers allowing synchronous configuration using two external power‐NMOS. This IC can operate in both Constant Current (CC) and Constant Voltage (CV) modes. CXMD3261 operates as a DC‐DC Buck Controller providing a wide range of outputs at Constant Current (CV) from 1.2V to 28V and the output current as high as 10A or above.
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[ CXMD3261 ]"
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产品概述 返回TOP
CXMD3261 is a DC/DC Buck Synchronous with four current limit pins suitable for many multi‐output applications. It is designed to allow for operating a wide supply voltage range from 9V to 40V. It has both high‐side and low‐side drivers allowing synchronous configuration using two external power‐NMOS. This IC can operate in both Constant Current (CC) and Constant Voltage (CV) modes. CXMD3261 operates as a DC‐DC Buck Controller providing a wide range of outputs at Constant Current (CV) from 1.2V to 28V and the output current as high as 10A or above. It has a Constant Current(CC) mode so that output current can be set externally and at a accuracy of +/‐7%. The current mode control and external compensation makes feedback control have good line and load regulation with flexible external design. There are four independent current limit control pins for four separate loads. Each of the current limit can be set by a resistor(RCS) at 100mV across it. Of course, output peak current limit is working during normal operation
产品特点 返回TOP
Vin: 9V to 40V
Vout: 1.2V to 28V; typical at 5V
CC/CV Mode Control
PFM Mode for Increased Light Load Efficiency
4 outputs current precision OCP: Adjustable Current‐Limit Protection
Burst mode when OCP/SCP occur
Protection
NMOS peak current limit: accuracy:~10%
Output short protection: reduce input current to less than 20mA(RMS) OVP(output Over‐Voltage Protection) Output FB short protection Temperature shut down(OTP)
Adjustable Output Cable Resistance Compensation
Duty: 0~97%
Switching Frequency: 100kHz to 300KHz
Integrated MOSFET Drivers
QFN20 Package
Vin: 9V to 40V
Vout: 1.2V to 28V; typical at 5V
CC/CV Mode Control
PFM Mode for Increased Light Load Efficiency
4 outputs current precision OCP: Adjustable Current‐Limit Protection
Burst mode when OCP/SCP occur
Protection
NMOS peak current limit: accuracy:~10%
Output short protection: reduce input current to less than 20mA(RMS) OVP(output Over‐Voltage Protection) Output FB short protection Temperature shut down(OTP)
Adjustable Output Cable Resistance Compensation
Duty: 0~97%
Switching Frequency: 100kHz to 300KHz
Integrated MOSFET Drivers
QFN20 Package
应用范围 返回TOP
Car Charger
High‐Brightness Lighting
General‐Purpose DC/DC Controller
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PWM Controller(脉宽调制控制器) |
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Part No. |
Input Voltage |
Output Voltage |
Frequency |
Efficiency |
Package |
precision |
Over |
Over |
Short Protection |
Current |
Temperature |
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Protection |
Protection |
||||||||
16V |
ADJ |
300KHZ |
93% |
SOP8/DFN3*3-10DFN3*3-10 |
2% |
Y |
Y |
Y |
|
16V |
ADJ |
200KHz/300KHZ /600KHz |
93% |
SOP8/ DFN3*3-10 |
2% |
Y |
Y |
Y |
|
35V |
ADJ |
290-430KHz |
93% |
DFN3*3-10 |
2% |
Y |
Y |
Y |
|
35V |
ADJ |
290-430KHz |
93% |
DFN3*3-10 |
2% |
Y |
Y |
Y |
|
35V |
ADJ |
135-215KHz |
93% |
DFN3*3-10 |
2% |
Y |
Y |
Y |
|
35V |
ADJ |
135-215KHz |
93% |
DFN3*3-10 |
2% |
Y |
Y |
Y |
|
40V |
- |
100-300KHz |
- |
QFN20 |
Y |
Y |
Y |