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參數(shù)資料
| 型號(hào)： | AT1391 |
| 英文描述： | AT1391 - 1-Channel Buck PWM Controller |
| 中文描述： | AT1391 - 1通道降壓PWM控制器 |
| 文件頁數(shù)： | 1/9頁 |
| 文件大?。?/td> | 279K |
| 代理商： | AT1391 |
AT1391
Preliminary Product Information
1- Channel Step-Down PWM Controller
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878 WWW:
http://www.aimtron.com.tw
Fax: 886-3-563-0879 Email:
service@aimtron.com.tw
1
Features
High efficiency
Using external P channel MOSFET
Maximum Duty 100%
Oscillation frequency 600KHz
Soft Start by an external capacity
Output voltage accuracy
±
2%
Built-in ON/OFF Function
Built-in Short-circuit Protection
Stand-by current max. 10
μ
A
Quiescent Current 1mA
Input voltage: 2.5V ~7.0V
Applications
Power Supply for portable devices
General Description
The AT1391 provides complete control and
protection for a DC/DC converter optimized for
high-performance microprocessor applications. It
is designed to drive one P-Channel in a buck
topology. The AT1391 integrates all of the control,
output adjustment, and protection functions into a
single package. The output voltage of the converter
can be precisely regulated with a maximum
tolerance of
±
2% over temperature and line voltage
variations. The AT1391 is a family of low-noise
step-down DC/DC converters that is ideally suited
for systems powered from a 1-cell Li-ion battery or
from a 3-cell to 4-cell NiCd, NiMH, or alkaline
battery. It can also be used to USB-Based power
system.
Block Diagram
Aimtron reserves the right without notice to change this circuitry and specifications.
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| AT1391P | 制造商:AIMTRON 制造商全稱:AIMTRON 功能描述:1- Channel Step-Down PWM Controller |
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| AT1392 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:1-Channel Synchronous Buck PWM Controller |
| AT1392P | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:1-Channel Synchronous Buck PWM Controller |
| AT1392P-GRE | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:1-Channel Synchronous Buck PWM Controller |
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