Advanced Analog Technology, Inc.
AAT1205
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
I
AUX
Out33 Load Current
Out25 Load Current
Output Current Limit
Thermal Shutdown
(Note 2)
Thermal Hysteresis
(Note 2)
Load Capacitance
Reverse Leakage Output
Current
Threshold Voltage, Low
Threshold Voltage, High
Auxiliary Switch
Resistance
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
-
4.2
4.45
-
80
50
Max
5.5
3.465
2.625
-
-
3.0
3.0
-
-
1.5
180
-
-
50
4.4
4.65
0.4
-
-
Unit
V
V
V
mV
mV
mA
mA
I
out 33
+ I
out 25
= 400mA
I
out 33
=0, I
out 25
= 300mA
VSB50 or VCC50 = 4.5V to 5.5V
20 mA
＜
I
L
＜
250 mA
From VCC50 VSB50 terminals, I
L
= 0
to 400mA
From AUX33 terminal, I
L
= 0A
3.135
2.375
-
-
-
-
0.4
0.3
Out33 or Out25 output shorted
to 0V
A
-
150
-
℃
Minimal ESR to insure stability of
regulated output
Tested for input that is grounded.
AUX33, VSB50 or VCC50 = GND,
Out33 = 3.3V
VSB50 or VCC50↓
VSB50 or VCC50↑
VSB50 = VCC50 = 0V,
AUX33 = 3.3V, I
L
= 150mA
Power Pad is not soldered on the heat
spreading copper
Power Pad is soldered on the heat
spreading copper
-
-
4.0
4.25
-
-
-
µF
µA
V
V
Ω
℃
/
W
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
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AAT [ ADVANCED ANALOG TECHNOLOGY, INC. ]
