您已在下面突出显示的字段中输入包含无效字符的值。 请仅使用有效字符修改您的选择。
产品可能与您的搜索条件并不完全匹配
您买过此产品。
在订单历史记录中查看
MAX639CPA+
降压开关稳压器, 固定, 4V-11.5V输入, 5V/225mA输出, DIP-8
产品概述
The MAX639CPA+ is a high efficiency, low IQ, step down DC to DC converter in 8 pin DIP package. This step down switching regulator provides high efficiency over a wide range of load currents and delivers up to 225mA output current. A current limiting pulse frequency modulated (PFM) control scheme gives the devices the benefits of pulse width modulated (PWM) converters (high efficiency at heavy loads) while using only 10µA of supply current (2mA to 10mA for PWM converters). This results in high efficiency over wide range of loads. The MAX639 provides lower preset output voltage of 5V and the output can be user adjusted to any voltage from 1.3V to input voltage. It has an internal 1A power MOSFET switch which makes the device ideal for minimum component, low and medium power applications. It is typical used for 9V battery to 5V, 3.3V or 3V conversion, high efficiency linear regulator replacement and 5V to 3.3V converters.
- Supply voltage range from 4V to 11.5V
- Operating temperature range from 0°C to 70°C
- Low supply current, high efficiency over wide load range
- Quiescent current of 10µA
- Low battery detection comparator
- Efficiency of 94% (IOUT = 25mA, L = 470µH) and 91% (IOUT = 100mA, L = 100µH)
- Switch on-time of 16.7µs (V+ = 6V, VOUT = 3V) and 12.5µs (V+ = 9V, VOUT = 5V)
- Switch off-time of 19.5µs (V+ = 6V, VOUT = 3V) and 11.7µs (V+ = 9V, VOUT = 5V)
应用
电源管理, 便携式器材
警告
Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.
产品信息
技术文档 (1)
CAD 下载
--请选择...
✔
--请选择...
×
条款
CAD Models - Notice
CAD Models and drawings are provided to you on a revocable limited licence for your internal use only but remain the property of the manufacturer who retain all intellectual property rights and ownership. They are provided to assist you in decision making and as design guide but are not guaranteed to be error free, accurate or up to date and is not intended to be taken as advice.
Use of these CAD models and other options provided are downloaded and used entirely at your own risk and by continuing you confirm acceptance of the above.
可延期交货
| 数量 | 单价（含增值税） | 您所支付金额（含增值税） |
|---|---|---|
| 1+ | CNY57.45 (CNY64.92) | ( ) |
| 10+ | CNY51.91 (CNY58.66) | ( ) |
| 25+ | CNY49.50 (CNY55.94) | ( ) |
| 100+ | CNY41.04 (CNY46.38) | ( ) |
| 250+ | CNY39.94 (CNY45.13) | ( ) |
定价不可用。 请联系客户服务。
筛选器工具