CXSD62245是一个380千赫的固定频率单片降压开关模式稳压器，内置一个内部功率MOSFET。它在宽的输入电源范围内实现2A连续输出电流，具有良好的负载和线路调节。该装置包括电压基准源、振荡电路、误差放大器、内部PMOS等，PWM控制电路能将占空比从0线性调整到100%
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产品概述 返回TOP
The CXSD62245 is a 380 KHz fixed frequency monolithic step down switch mode regulator with a built in internal Power MOSFET. It achieves 2A continuous output current over a wide input supply range with excellent load and line regulation. The device includes a voltage reference, oscillation circuit, error amplifier, internal PMOS and etc. The PWM control circuit is able to adjust the duty ratio linearly from 0 to 100%. An enable function, an over current protection function and a short circuit protection function are built inside. An internal compensation block is built in to minimize external component count. The CXSD62245 serves as ideal power supply units for portable devices.
产品特点 返回TOP
* 2A Constant Output Current
* 80mΩ RDSON Internal Power PMOSFET Switch
* Up to 95% Efficiency
* Fixed 380KHz Frequency
* Wide 3.6V to 32V Input Voltage Range
* Output Adjustable from 1.222V to 30V
* Built in Frequency Compensation
* Built in Thermal Shutdown Function
* Built in Current Limit Function
* SOP-8 Package is Available
* The minimum dropout up to 0.3V
应用范围 返回TOP
* Portable DVD
* LCD Monitor / TV
* Battery Charger
* ADSL Modem
* Telecom / Networking Equipment
技术规格书（产品PDF) 返回TOP
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产品封装图 返回TOP
电路原理图 返回TOP
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PWM Buck Converter(Non-synchronous) |
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Part No. |
Input Voltage |
Output Voltage |
Current MAX |
Frequency |
Efficiency |
Package |
Precision |
OCP |
OTP |
SP |
|
20V |
ADJ |
2A |
380KHZ |
95% |
SOP8 |
3% |
Y |
Y |
Y |
|
|
45V |
3.3V/5V/ADJ |
3A |
150KHZ |
90% |
TO220/263 |
3% |
Y |
Y |
Y |
|
|
56V |
5V/ADJ |
3A |
150KHZ |
90% |
TO220/263 |
3% |
Y |
Y |
Y |
|
|
45V |
ADJ |
3A |
150KHZ |
90% |
TO252 |
3% |
Y |
Y |
Y |
|
|
45V |
ADJ |
2A |
150KHZ |
90% |
SOP8 |
3% |
Y |
Y |
Y |
|
|
20V |
ADJ |
2A |
380KHZ |
95% |
SOP8 |
3% |
Y |
Y |
Y |
|
|
28V |
ADJ |
3A |
380KHZ |
95% |
SOP8 |
3% |
Y |
Y |
Y |
|
|
32V |
ADJ |
2A |
380KHZ |
95% |
SOP8 |
3% |
Y |
Y |
Y |
|
|
40V |
ADJ |
1.8A |
150KHZ |
90% |
SOP8 |
3% |
Y |
Y |
Y |
|
|
45V |
3.3V/5V/ADJ |
3A |
52KHZ |
75% |
TO220/263 |
3% |
Y |
Y |
Y |
|
|
32V |
ADJ |
2.5A |
52KHZ |
95% |
SOP8 |
3% |
Y |
Y |
Y |
|
|
32V |
ADJ |
2.2A |
52KHZ |
95% |
SOP8 |
3% |
Y |
Y |
Y |
|
|
32V |
ADJ |
2.2A |
380KHZ |
95% |
SOP8 |
3% |
Y |
Y |
Y |
|
|
23V |
ADJ |
5A |
240KHZ |
95% |
TO263 |
3% |
Y |
Y |
Y |
|
◀ 上一篇:3A恒定输出电流效率高达95%固定380KHz频率3.6V至28V输入电压CXSD62244内置频率补偿单片降压开关模式稳压器
下一篇▶:1.6A连续输出电流效率高达90%输入电压6V至40V CXSD62246固定150kHz频率内部振荡器单片异步降压调节器
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