AAT1203 AAT, AAT1203 Datasheet - Page 3

• Manufacturer Part Number: AAT1203
• Description: MULTI-INPUT LOW-DROPOUT REGULATOR
• Manufacturer: AAT

Note 1：The device deteriorates with increase in ambient temperature,
Recommended Operating Conditions
Electrical Characteristics Over Recommended Operating Free-Air
Temperature,
0
5V Main Supply Input, VCC50
5V Standby Supply Input, VSB50
3.3V Auxiliary Supply Input, AUX33
Load Capacitance,
Load Current,
Ambient Temperature,
5V Inputs
3.3V Output
Line Regulation Voltage
Load Regulation Voltage
Quiescent Supply Current
Out33 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
Thermal Impedance,
Junction-to-Ambient
(Note 3)
I
AUX
Parameter
I
L
T
Advanced Analog Technology, Inc.
C
C
L
= 0
T
C
–
–
℃
R
Symbol
∆
∆
VCC50
OUT33
VSB50
I
Advanced Analog Technology, Inc
I
Ikg
V
V
(
台灣類比科技股份有限公司
R
I
T
V
SWITCH
I
T
V
LIMIT
C
I
AUX
to 70 ,
O
O
L
TSD
(
50
hys
LO
θ
REV
HI
33
(
(
L
JA
∆
∆
Parameter
VI
IO
)
)
)
)
℃
VSB50 or VCC50 = 4.5V to 5.5V
20 mA ＜
From VCC50 VSB50 terminals,
From AUX33 terminal,
Out33 Output short to 0V
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,
Without copper for heat spreading
With copper for heat spreading
I
I = 0mA to 250mA
out
L
33
C
L
= 250mA
= 4.7µF (Unless Otherwise Specified)
I ＜ 250 mA
L
Test Condition
Page 3 of 16
I
L
= 150mA
I
L
T . See Thermal Information section.
C
= 0A
Min
4.23
4.5
4.5
3.0
0
0
.
–
–
Typ
4.70
3.135
-
-
-
-
-
Min
0.25
3.85
150
4.5
4.1
-
-
-
-
-
-
-
-
-
-
-
Max
5.17
250
5.5
5.5
3.6
70
AAT1203
3.300
Typ
4.05
100
5.0
1.0
1.0
4.7
4.3
40
15
70
2
Unit
-
-
-
-
-
mA
µF
℃
V 1.
V
V
V
3.465
Max Unit
4.25
180
5.5
3.0
3.0
1.5
4.5
0.4
50
-
-
-
-
-
-
-
℃ /W
μ A
mV
μ F
mV
mA
mA
℃
V
V
A
V
V
Ω