參數(shù)資料
型號(hào)： AT1369
英文描述： AT1369 - 2-Channel Synchronous Buck PWM Controller with Power Good Reset
中文描述： AT1369 -雙通道同步降壓PWM控制器與電源良好復(fù)位
文件頁數(shù)： 8/13頁
文件大?。?/td> 794K
代理商： AT1369
AT1369
Preliminary Product Information
2-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
1.5
2.0
mA
Current in standby mode
I
ST
CTL=0V
10
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
15
mV
Entire device
Rference Variation
with Temperature
Ta =-20℃ to +85℃
0.5
1.5
%
Input Offset Voltage
V
IO
10
mV
Source Current
I
OH
V
COMP = VREF -0.5V
1.0
1.5
2.0
mA
Sink Current
I
OL
V
COMP = 0.5V
-160 -120
-80
μ
A
Source current Variation
with temperature
Ta =-20℃ to +85℃
20
%
Sink current Variation
with temperature
Ta =-20℃ to +85℃
20
%
Unity Gain Bandwidth
f
T
10.0
MHz
Common Mode Input
Voltage Range
V
COM
0.2
1.5
V
Error amplifier
DC Open Loop Gain
A
V
110
dB
fosc
AT1369A
250
300
350 KHz
Frequency
fosc
AT1369B
500
600
700 KHz
High Level Voltage
1.0
V
Low Level Voltage
0.5
V
Variation with Power
Supply
Vcc=2.5V to 7V
2
%
Sawtooth wave
oscillator (OSC)
Variation with
temperature
Ta =-20℃ to +85℃
7%
Charge Current of
SS1,2
I
CSS1,2
-1.0
A
Soft-Start
Invalid threshold
voltage of SS1,2
1.0
V
Charge Current of
SCP
I
CSCP
-1.5 -1.25 -1.0
A
Short-Circuit
Threshold Voltage of
SCP
1.0
V
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