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AT1368A

Description
1- Channel Synchronous Buck PWM Controller with Power Good Reset
File Size546KB,13 Pages
ManufacturerETC
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AT1368A Overview

1- Channel Synchronous Buck PWM Controller with Power Good Reset

AT1368
1-Channel Synchronous Buck PWM Controller
with Power Good Reset
General Description
The AT1368 provides complete control and
protection for a DC/DC converter optimized for
high-performance microprocessor applications. It
is designed to drive one P-Channel and one N-
Channel MOSFETs in a synchronous-rectified
buck topology. The AT1368 integrates all of the
control, output adjustment, monitoring 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
AT1368 is a family of low-noise synchronous 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.
Features
• High efficiency (min. 90% On IO=300mA
~600mA)
• Using external P and N channel MOSFET
• Supports for down and up/down Zeta
conversion
• Maximum Duty 100%
• Oscillation frequency 300KHz or 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. 10µA
• Quiescent Current 1mA
• Monitor the input voltage and 3V3 output
• Input voltage: 2.5V ~7.0V
Applications
• Slim-Type CD-ROM/DVD-ROM/CD-RW
• Power Supply for portable devices
• Main or Sub Power source foe notebook
computers and peripherals.
Block Diagram
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

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AT1368A AT1368BP AT1368BR AT1368B AT1368 AT1368AR
Description 1- Channel Synchronous Buck PWM Controller with Power Good Reset 1- Channel Synchronous Buck PWM Controller with Power Good Reset 1- Channel Synchronous Buck PWM Controller with Power Good Reset 1- Channel Synchronous Buck PWM Controller with Power Good Reset 1- Channel Synchronous Buck PWM Controller with Power Good Reset 1- Channel Synchronous Buck PWM Controller with Power Good Reset
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Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
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