CXSU63038A高效同步升压调节器，可转换为2.5V输入电压和5.5V输出电压。主开关采用NMOS，同步开关采用PMOS CXSU63038A是一种高效的同步升压调节器低至2.5V输入，高达5.5V输出电压。主要采用动校正同步开关的开关和PMOS。它可以断开输出在关机模式下输入
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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.下载产品资料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)
CXSU63038A is a high efficiency synchronous boost regulator that converts
down to 2.5V input and up to 5.5V output voltage. It adopts NMOS for the main
switch and PMOS for the synchronous switch. It can disconnect the output from
input during the shutdown mode.. It integrates 6A power MOSFET and can
output 5V 2.5A with Li-Battery input.
二.产品特点(Features)
2.5V Minimum input voltage
Adjustable output voltage from 3V to 5.5V
6A peak current limit
Input under voltage lockout
600Khz fixed Switching Frequency
Load disconnect during shutdown
Integrated soft-start
Output over voltage protection
30mojtm Power MOSFET
Thermal Shutdown
SOP8-PP Package
三,应用范围 (Applications)
Handheld Devices
Power Bank
All Single Cell Li or Dual Cell Battery Operated Products
四.下载产品资料PDF文档
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五,产品封装图 (Package)
|
PIN |
PIN |
PIN DESCRIPTION |
|
1 |
Vbat |
VDD Power Supply，need one 1uF MLCC close to VBAT pin and AGND |
|
2 |
EN |
Shutdown control input., Connect this pin to logic high level to enable the device |
|
3 |
AGND |
Analog ground |
|
4 |
FB |
Feedback pin |
|
5 |
Vout |
DC-DC Boost output |
|
6,7 |
SW |
Switch pin , Connect an inductor between IN pin and LX pin. |
|
8 |
PGND |
Power ground |
|
9 |
EPAD |
GND and Thermal Pad |
六.电路原理图
七,功能概述
The controller circuit of the device is based on a fixed frequency multiple feedforward
controller topology. Input voltage, output voltage, and voltage drop on the NMOS switch are
monitored and forwarded to the regulator. So changes in the operating conditions of the
converter directly affect the duty cycle and must not take the indirect and slow way through
the control loop and the error amplifier. The control loop, determined by the error amplifier,
only has to handle small signal errors. The input for it is the feedback voltage on the FB pin,
the voltage on the internal resistor divider. It is compared with the internal reference voltage
to generate an accurate and stable output voltage.
The peak current of the NMOS switch is also sensed to limit the maximum current flowing
through the switch and the inductor. The typical peak current limit is set to exceed 6A. An
internal temperature sensor prevents the device from getting overheated in case of
excessive power dissipation.
八,相关产品 更多同类产品........
|
内置MOS同步DC-DC升压IC |
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|
型号 |
工作模式 |
电压范围 |
输出电压 |
输出电压形式 |
输出电压精度 |
输出电流限制 |
静态电流 |
工作频率 |
封装 |
|
|
PWM |
0.9V-5.0V |
最大5.5V |
可调输出 |
+/-2% |
950mA |
90% |
0.1uA |
1.4MHz |
SOT-26 |
|
|
PWM |
0.85V-5.0V |
最大5.0V |
可调输出 |
+/-2% |
2A |
93% |
0.1uA |
1.5MHz |
SOT23-6 |
|
|
PWM |
0.85V-5.5V |
2.5V-5.5V |
可调输出/真关断 |
+/-2% |
1.2A |
94% |
300uA |
1.2MHz |
SOT23-6 |
|
|
PWM |
2.5V-4.5V |
最大6V |
可调输出 |
+/-2% |
3.3A |
93% |
100uA |
1MHz |
ESOP-8 |
|
|
PWM |
2.4V-6.0V |
2.5V-5.3V |
可调输出/真关断 |
+/-2% |
6A |
91% |
180uA |
500KHz |
ESOP-8 |
|
|
PWM |
2.5V-5.25V |
2.5V-5.5V |
可调输出 |
+/-2% |
8A |
90% |
45uA |
500KHz |
ESOP-8 |
|
|
PWM |
2.8V-5.0V |
最大5.5V |
可调输出 |
+/-2% |
4A |
91% |
180uA |
550KHz |
ESOP-8 |
|
|
PWM |
2.5V-6.0V |
最大5.5V |
可调输出/真关断 |
+/-2% |
6A |
90% |
0.5uA |
1.2MHz |
SOP8-PP |
|
|
PWM |
2.5V-5.5V |
最大5.5V |
可调输出/真关断 |
+/-2% |
6A |
90% |
0.5uA |
1.2MHz |
QFN4X4-16L |
|
|
PWM |
1.8V-6.0V |
最大5.5V |
可调输出/真关断 |
+/-2% |
6A |
90% |
0.5uA |
1.2MHz |
SOP8-PP |
|
|
PWM |
1.8V-5.25V |
2.5V-5.5V |
可调输出 |
+/-2% |
5A |
97% |
10uA |
500KHz |
QFN2X2-10 |
|
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