Advanced Analog Technology, Inc.
AAT1202
Electrical Characteristics over recommended operating free-air temperature, T
A
= 0℃ to
70℃,CL = 4.7µF (unless otherwise noted)
Parameter
VCC50
VSB50
OUT33
OUT18
5-V inputs
3.3-V output
1.8-V output
Iout33+Iout18 = 250mA
Iout33=0, Iout18 = 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, IL = 0A
0.25
0.2
Out33 or Out18 output shorted to
0V
150
15
4.7
50
3.85
4.1
4.05
4.3
4.25
4.5
0.4
1.5
180
℃
µF
µA
V
V
Ω
℃/W
Test Condition
Min
4.5
3.135
1.71
Typ
5
3.3
1.8
2
40
1.0
1.0
Max Unit
5.5
3.465
1.89
V
V
V
mV
mV
3.0
3.0
mA
mA
A
△V
O
（
△VI
）
Line regulation voltage
△V
O
（
△IO
）
Load regulation voltage
I
50
Quiescent supply current
I
AUX
I
L33
I
L18
I
LIMIT
T
TSD
T
hys
C
L
I
Ikg REV
）
（
Out33 load current
Out18 load current
Output current limit
Thermal shutdown
（NOTE
2）
Thermal hysteresis（
NOTE 2
）
Load capacitance
Minimal ESR to insure stability of
regulated output
Reverse leakage output current Tested for input that is grounded.
AUX33, VSB50 or VCC50 = GND,
Out33 = 3.3v
V
LO
Threshold voltage, low
VSB50 or VCC50↓
V
HI
Threshold voltage, high
VSB50 or VCC50↑
VSB50 = VCC50 = 0V,
R
（
SWITCH
）
Auxiliary switch resistance
AUX33 = 3.3V, I
L
= 150mA
R
θJA
Thermal impedance,
Without copper for heat spreading
Junction-to-ambient（NOTE3） With copper for heat spreading
NOTE 2：
Design targets only. Not tested in production.
NOTE 3：Please refer to "Thermal Information"
100
70
–
台灣類比科技股�½有限公司
–
Advanced Analog Technology, Inc
.
V 0.1
AAT [ ADVANCED ANALOG TECHNOLOGY, INC. ]
