AT1369
Preliminary Product Information
2-Channel Synchronous Buck PWM Controller
with Power Good Reset
Electrical Characteristics
(VCC = 5V,Ta =+25℃ , unless otherwise noted. )
Parameter
Input Supply Range
Quiescent Current
Current in standby mode
Entire device
Reference Voltage
Reference Voltage
line-regulation
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
Frequency
Sawtooth wave
oscillator (OSC)
High Level Voltage
Low Level Voltage
Variation with Power
Supply
Variation with
temperature
Charge Current of
SS1,2
Invalid threshold
voltage of SS1,2
Charge Current of
SCP
Threshold Voltage of
SCP
Symbol
V
CC
I
CC
I
ST
V
REF
V
REF-Line
Condition
2.5
Duty=50%,
fOSC=600KHz
PDRV/NDRV No Load
CTL=0V
Ta =-20℃ to +85℃
VCC=2.5V to 7.0V
Ta =-20℃ to +85℃
Values
Min. Typ. Max.
--
1.5
7.0
2.0
10
1.20 1.22 1.24
1
0.5
-1.0
160
-1.5
120
10
1.5
10
-2.0
80
20
20
10.0
0.2
1.5
110
300
600
1.0
0.5
Unit
V
mA
µA
V
mV
%
mV
mA
μA
%
%
MHz
V
dB
350 KHz
700 KHz
V
V
2
7
%
%
µA
V
µA
V
V
IO
I
OH
I
OL
V
COMP
= V
REF
-0.5V
V
COMP
= 0.5V
Ta =-20℃ to +85℃
Ta =-20℃ to +85℃
Error amplifier
f
T
V
COM
A
V
fosc
fosc
AT1369A
AT1369B
250
500
Vcc=2.5V to 7V
Ta =-20℃ to +85℃
I
CSS1,2
-1.5
-1.0
1.0
I
CSCP
-0.8
Soft-Start
-1.7 -1.25 -1.0
0.9
Short-Circuit
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
AIMTRON [ AIMTRON TECHNOLOGY ]
