CXSD62232是一个单片同步降压调节器。该器件集成了两个90mΩmosfet，在4.75V宽输入电压下提供2.2A的连续负载电流电流模式控制提供快速瞬态响应和逐周电流限制。可调软启动可防止在开启和进入模式时出现涌入电流电源电流降到1μA。
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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) 
The CXSD62232 is a monolithic synchronous buck regulator. The device integrates two 90mΩ MOSFETs, and provides2.2A of continuous loadcurrent over a wide input voltage of 4.75V
to 37V.Current mode control provides fast transient response and cycle-by-cycle current limit.An adjustable soft-start prevents inrush current at turn-on, and inshuJTMTown mode
the supply current drops to 1μA.This device, available in an SOP8-PP package, provides a verycompact solution with minimal external components
二.产品特点(Features)
* 2.2A Output Current
* Wide 4.75V to 32V Operating Input Range
* Integrated 90mΩ Power MOSFET Switches
* Output Adjustable from 0.923V to 30V
* Up to 93% Efficiency
* Programmable Soft-Start
* Stable with Low ESR Ceramic Output Capacitors
* Fixed 200KHz Frequency
* Cycle-by-Cycle Over Current Protection
* Input Under Voltage Lockout
三,应用范围 (Applications)
* Distributed Power Systems
* Networking Systems
* FPGA, DSP, ASIC Power Supplies
* Green Electronics/ Appliances
* Notebook Computers
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)
|
Pin Number |
Pin Name |
Description |
|
1 |
BS |
High-Side Gate Drive Boost Input. BS supplies the drive for the high-side N-Channel |
|
2 |
IN |
Power Input. IN supplies the power to the IC, as well as the step-down converter |
|
3 |
SW |
Power Switching Output. SW is the switching node that supplies power to the output. |
|
4 |
GND |
Ground. |
|
5 |
FB |
Feedback Input. FB senses the output voltage to regulate that voltage. Drive FB |
|
6 |
COMP |
Compensation Node. COMP is used to compensate the regulation control loop. |
|
7 |
EN |
Enable Input. EN is a digital input that turns the regulator on or off. Drive EN high to |
|
8 |
SS |
Soft-Start Control Input. SS controls the soft start period. Connect a capacitor from SS |
六.电路原理图
七,功能概述
|
Parameters |
Symbol |
Test Condition |
Min. |
Typ. |
Max. |
Unit |
|
Input Under Voltage Lockout |
VIN Rising |
3.80 |
4.10 |
4.40 |
V |
|
|
Input Under Voltage Lockout |
210 |
mV |
||||
|
Soft-Start Current |
VSS = 0V |
6 |
μA |
|||
|
Soft-Start Period |
CSS = 0.1μF |
15 |
ms |
|||
|
* |
160 |
°C |
八,相关芯片选择指南 更多同类产品......
|
PWM Buck Converter（synchronous) |
||||||||||
|
Part No. |
Input |
Output Voltage |
Current |
Frequency |
Efficiency |
Package |
Precision |
OCP |
OTP |
SP |
|
Voltage |
MAX |
|||||||||
|
40V |
ADJ |
600mA |
1/2MHZ |
85% |
SOT23-6 |
2% |
Y |
Y |
Y |
|
|
CXSD62226A |
23V |
ADJ |
2A |
340KHZ |
93% |
SOP8 |
2% |
Y |
Y |
Y |
|
CXSD62227A |
23V |
ADJ |
2.2A |
340KHZ |
93% |
SOP8-PP |
2% |
Y |
Y |
Y |
|
CXSD62228A |
23V |
ADJ |
3.2A |
340KHZ |
93% |
SOP8-PP |
2% |
Y |
Y |
Y |
|
CXSD62228B |
23V |
ADJ(PSM) |
3.2A |
340KHZ |
93% |
SOP8-PP |
2% |
Y |
Y |
Y |
|
32V |
ADJ |
2A |
340KHZ |
93% |
SOP8-PP |
2% |
Y |
Y |
Y |
|
|
CXSD62229A |
32V |
ADJ |
2A |
600KHZ |
93% |
SOP8-PP |
2% |
Y |
Y |
Y |
|
32V |
ADJ |
1.6A |
340KHZ |
93% |
SOP8 |
2% |
Y |
Y |
Y |
|
|
32V |
ADJ |
2.2A |
340KHZ |
93% |
SOP8-PP |
2% |
Y |
Y |
Y |
|
|
CXSD62231A |
32V |
ADJ |
2.2A |
600KHZ |
93% |
SOP8-PP |
2% |
Y |
Y |
Y |
|
CXSD62231B |
22V |
ADJ |
3A |
600KHZ |
93% |
SOP8-PP |
2% |
Y |
Y |
Y |
|
32V |
ADJ |
2.2A |
200KHZ |
93% |
SOP8-PP |
2% |
Y |
Y |
Y |
|
|
32V |
ADJ |
3A |
340KHZ |
93% |
SOP8-PP |
2% |
Y |
Y |
Y |
|
|
5.5V |
1.2/.15/1.8/ADJ |
800mA |
1.5MHZ |
96% |
SOT23-5 |
2% |
Y |
Y |
Y |
|
|
5.5V |
1.2/.15/1.8/ADJ |
1.2A |
1.5MHZ |
96% |
SOT23-5 |
2% |
Y |
Y |
Y |
|
|
CXSD62235B |
5.5V |
1.2/.15/1.8/ADJ |
1.2A |
1.5MHZ |
96% |
SOT23-5 |
2% |
Y |
Y |
Y |
|
5.5V |
1.2/.15/1.8/ADJ |
1.2A |
1.5MHZ |
96% |
SOT23-5 |
2% |
Y |
Y |
Y |
|
|
5.5V |
1.2/.15/1.8/ADJ |
2A |
1.5MHZ |
96% |
SOT23-5 |
2% |
Y |
Y |
Y |
|
|
5.5V |
1.2/.15/1.8/ADJ |
1.5A*2 |
1.5MHZ |
96% |
SOP8 |
2% |
Y |
Y |
Y |
|
◀ 上一篇:2.2A输出电流 宽4.75V至32V工作输入范围集成90mΩ功率MOSFET开关输出可从0.923V调整到30V效率高达93% CXSD62231B
下一篇▶:功率mosfet的3A同步降压转换器低ESR陶瓷输出电容CXSD62233脉冲保存模式PSM/PWM模式操作输入低电压锁定
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