Advanced Analog Technology, Inc.
AAT1201
Electrical Characteristics Over Recommended Operating Free-Air Temperature, T
C
=
0
℃
to 70
℃
,
C
L
= 4.7µF (unless otherwise specified)
Parameter
5V Inputs
3.3V Output
2.5V Output
Line Regulation Voltage
Load Regulation Voltage
Quiescent Supply Current
Symbol
VCC50
VSB50
OUT33
OUT25
∆
V
O
(
∆
VI
)
∆
V
O
(
∆
IO
)
I
50
I
AUX
I
L33
I
L 25
I
LIMIT
T
TSD
T
hys
C
L
I
Ikg
(
REV
)
V
LO
V
HI
R
SWITCH
R
θ
JA
Test Condition
Min
4.5
Typ
5.0
3.300
2.500
2
40
1.0
1.0
-
-
-
-
15
4.7
-
4.05
4.3
-
100
70
Max
5.5
3.465
2.625
-
-
3.0
3.0
-
-
1.5
180
Unit
V
V
V
mV
mV
mA
mA
I
out 33
+ I
out 25
= 250mA
I
out 33
=0, I
out 25
= 200mA
VSB50 or VCC50 = 4.5V to 5.5V
20 mA
＜
I
L
＜
250 mA
From VCC50 VSB50 Terminals,
I
L
= 0 to 250mA
From AUX33 Terminal, I
L
= 0A
3.135
2.375
-
-
-
-
0.25
0.2
Out33 Load Current
Out25 Load Current
Output Current Limit
Thermal Shutdown
(Note 2)
Out33 or Out25 Output Shortened to
0V
A
-
150
-
Thermal Hysteresis
(Note 2)
Load Capacitance
Reverse Leakage Output
Current
Threshold Voltage, Low
Threshold Voltage, High
Auxiliary Switch
Resistance
Thermal Impedance,
Junction-to-Ambient
(Note 3)
℃
-
-
50
4.25
4.5
0.4
-
-
℃
/W
Minimal ESR to Insure Stability of
Regulated Output
Tested for Grounded Input
AUX33, VSB50 or VCC50 = GND,
Out33 = 3.3V
VSB50 or VCC50↓
VSB50 or VCC50↑
VSB50 = VCC50 = 0V,
AUX33 = 3.3V, I
L
= 150mA
Without Copper for Heat Spreading
With Copper for Heat Spreading
-
-
3.85
4.1
-
-
-
µF
µA
V
V
Ω
Note 2
：
Design targets only. Not tested in production.
Note 3
：
Please refer to "Thermal Information"
–
台灣類比科技股�½有限公司
–
–
Advanced Analog Technology, Inc
.
–
Page 4 of 21
V 1.0
AAT [ ADVANCED ANALOG TECHNOLOGY, INC. ]
