CXSD62247是一系列易于使用的固定和可调降压（buck）开关式稳压器。这些设备有3.3V、5V的固定输出电压和可调输出版本。这两个版本都能够驱动一个3A负载与优良的线路和负载调节。这些调节器需要最少数量的外部元件，使用简单，包括内部频率补偿和固定频率振荡器
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产品概述 返回TOP
The CXSD62247 is a series of easy to use fixed and adjustable step-down (buck) switch-mode voltage regulators. These devices are available in fixed output voltage of 3.3V, 5V, and an adjustable output version. Both versions are capable of driving a 3A load with excellent line and load regulation. Requiring a minimum number of external components, these regulators are simple to use and include internal frequency compensation, and a fixed-frequency oscillator. The output voltage is guaranteed to ±3% tolerance under specified input voltage and output load conditions. The oscillator frequency is guaranteed to ±15%. External shutdown is included, featuring typically 80 μA standby current. Self protection features include a two stage frequency reducing current limit for the output switch and an over temperature shutdown for complete protection under fault conditions. The CXSD62247 is available in TO-220B-5L TO220-5L and TO-263-5L packages.
产品特点 返回TOP
* 3.3V, 5V and adjustable output versions
* Output adjustable from 1.23v to 43V
* Fixed 52KHz frequency internal oscillator
* Guaranteed 3A output load current
* Input voltage range up to 45V
* Low power standby mode, IQ typically 80 μA
* TTL shutdown capability
* Excellent line and load regulation
* Requires only 4 external components
* High efficiency
* Thermal shutdown and current limit protection
* Available in TO-220B/TO220 and TO-263 packages
应用范围 返回TOP
* Simple High-efficiency step-down regulator
* On-card switching regulators
* Positive to negative converter
* LCD monitor and LCD TV
* DVD recorder and PDP TV
* Battery charger
* Step-down to 3.3V for microprocessors
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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: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
下一篇▶:2.5A恒定输出电流固定52KHz频率3.6V至32V输入电压CXSD62248效率高达95%PWM控制电路能将占空比从0线性调整到100%
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