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AT1368 の電気的特性と機能

AT1368のメーカーはAimtron Technologyです、この部品の機能は「1-Channel Synchronous Buck PWM Controller」です。


製品の詳細 ( Datasheet PDF )

部品番号 AT1368
部品説明 1-Channel Synchronous Buck PWM Controller
メーカ Aimtron Technology
ロゴ Aimtron Technology ロゴ 




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AT1368 Datasheet, AT1368 PDF,ピン配置, 機能
www.DataSheet4U.com
AT1368
1-Channel Synchronous Buck PWM Controller
with Power Good Reset
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
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.
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
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AT1368 pdf, ピン配列
AT1368
1-Channel Synchronous Buck PWM Controller
with Power Good Reset
Absolute Maximum Ratings
Parameter
Condition
Rated Value
Unit
Min. Max.
Power Supply Voltage
Source Average Current of PDRV,
NDRV
Sink Average Current of PDRV,
NDRV
Source Peak Current of PDRV,
NDRV
Sink Peak Current of PDRV,
NDRV
Input Voltage to Error Amplifier
Continuous power dissipation
Operating temperature
Storage temperature
SSOP16Ta=+25℃)
- +8
- -50
- 50
- -200
- 200
- 6.5
- 560
-30 +85
-55 +125
V
mA
mA
mA
mA
V
mW
0C
0C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are
stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the
operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended
periods may affect device reliability.
Recommended Operating Conditions
Parameter
Symbol
Power supply voltage
Control input voltage
Operating temperature
VCC
VCTL
TOP
Min.
2.5
0
-20
Values
Typ. Max.
-- 7
-- 7
+25 +85
(Ta=+250C)
Unit
V
°C
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
3


3Pages


AT1368 電子部品, 半導体
AT1368
1-Channel Synchronous Buck PWM Controller
with Power Good Reset
Typical Application Circuit: 3V3 Output
L1: AT1368A: 22µH/0.77A/104m
AT1368B: 10µH/1A/74.5m
R1: AT1368A: 100K
AT1368B: 10K
TDK-SLF6028T-220MR77
TDK-SLF6028T-100M1R0
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
6

6 Page



ページ 合計 : 13 ページ
 
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共有リンク

Link :


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AT1362A

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1MHZ 800MA SYNCHRONOUS BUCK CONTROLLER

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AT1366B

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