AAT1204 AAT, AAT1204 Datasheet - Page 3

• Manufacturer Part Number: AAT1204
• Description: MULTI-INPUT LOW-DROPOUT REGULATOR
• Manufacturer: AAT

Recommended operating conditions
Electrical Characteristics over recommended operating free-air temperature, TA = 0℃ to 70
℃,CL = 4.7µF (unless otherwise noted)
NOTE 2：
NOTE 3：Please refer to "Thermal Information"
5-V main supply input, VCC50
5-V standby supply input, VSB50
3.3V auxiliary supply input, AUX33
Load capacitance, C
Load current, I
Ambient temperature, T
VCC50
VSB50
OUT33
△V
△V
I
I
I
I
T
T
C
I
V
V
R
R
50
AUX
L33
LIMIT
Ikg
TSD
hys
L
（
θJA
LO
HI
（
SWITCH
REV
O
O
（△VI）
（△IO）
Design targets only. Not tested in production.
）
）
Thermal impedance,
Junction-to-ambient（NOTE3） With copper for heat spreading
Auxiliary switch resistance
Quiescent supply current
Reverse leakage output current Tested for input that is grounded.
Line regulation voltage
Load regulation voltage
5-V inputs
Threshold voltage, low
Threshold voltage, high
3.3-V output
Output current limit
Load capacitance
Thermal shutdown
Thermal hysteresis（
Out33 load current
L
Parameter
Advanced Analog Technology, Inc.
L
A
–
（NOTE 2）
Advanced Analog Technology, Inc
台灣類比科技股份有限公司
NOTE2
）
Iout33 = 400mA
VSB50 or VCC50 = 4.5V to 5.5V
20 mA＜I
From VCC50 VSB50 terminals,
I
From AUX33 terminal, IL = 0A
Out33 output short to 0v
Minimal ESR to insure stability of
regulated output
AUX33, VSB50 or VCC50 = GND,
Out33 = 3.3v
VSB50 or VCC50↓
VSB50 or VCC50↑
VSB50 = VCC50 = 0V,
AUX33 = 3.3V, I
Without copper for heat spreading
L
= 0 to 400mA
Test Condition
L
＜400 mA
L
= 150mA
3.135
Min
4.25
150
4.5
0.4
4.0
Min
4.23
4.5
4.5
3
0
0
–
.
Typ
4.7
Typ
4.45
100
3.3
1.0
1.0
4.7
4.2
40
15
70
5
2
Max
5.17
400
5.5
5.5
3.6
70
AAT1204
3.465
Max Unit
4.65
180
5.5
3.0
3.0
1.5
4.4
0.4
50
Unit
V 1.0
mA
µF
℃
V
V
V
℃/W
μA
μF
mV
mV
mA
mA
℃
Ω
V
V
A
V
V