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參數(shù)資料
| 型號(hào)： | AT1368B |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 1- Channel Synchronous Buck PWM Controller with Power Good Reset |
| 中文描述： | 1 -通道同步降壓PWM控制器與電源良好復(fù)位 |
| 文件頁(yè)數(shù)： | 4/13頁(yè) |
| 文件大小： | 549K |
| 代理商： | AT1368B |
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AT1368
1- Channel Synchronous Buck PWM Controller
with Power Good Reset
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
4
Electrical Characteristics
(VCC = 5V,Ta =+25
℃
, unless otherwise noted. )
Values
Parameter
Symbol
Condition
Min. Typ. Max.
Unit
Input Supply Range
V
CC
2.5
--
7.0
V
Quiescent Current
I
CC
Duty=50%,
fOSC=600KHz
PDRV/NDRV No Load
CTL=0V
1.0
1.5
mA
Current in standby mode
I
ST
10
μ
A
Reference Voltage
V
REF
Ta =-20
℃
to +85
℃
1.20
1.22
1.24
V
Reference Voltage
line-regulation
V
REF-Line
VCC=2.5V to 7.0V
1
5
mV
Entire device
Rference Variation
with Temperature
Input Offset Voltage
Source Current
Sink Current
Source current Variation
with temperature
Sink current Variation
with temperature
Unity Gain Bandwidth
Common Mode Input
Voltage Range
DC Open Loop Gain
Ta =-20
℃
to +85
℃
0.5
1.5
%
V
IO
I
OH
I
OL
10
2.0
-80
mV
mA
μ
A
V
COMP
= V
REF
-0.5V
V
COMP
= 0.5V
Ta =-20
℃
to +85
℃
1.0
-160 -120
1.5
20
%
Ta =-20
℃
to +85
℃
20
%
f
T
10.0
MHz
V
COM
0.2
1.5
V
Error amplifier
A
V
fosc
110
300
dB
AT1368A
250
350
KHz
Frequency
fosc
AT1368B
500
600
700
KHz
High Level Voltage
1.0
V
Low Level Voltage
Variation with Power
Supply
Variation with
temperature
Charge Current of
SS
Invalid threshold
voltage of SS
Charge Current of
SS
Threshold Voltage of
SCP
0.5
V
Vcc=2.5V to 7V
2
%
Sawtooth wave
oscillator (OSC)
Ta =-20
℃
to +85
℃
7
%
I
CSS
-1.0
μ
A
Soft-Start
1.0
V
I
CSS
-1.25
μ
A
Short-Circuit
1.0
V
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