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參數(shù)資料
| 型號(hào)： | AAT1203-S-T |
| 廠商： | Advanced Analog Technology,lnc. |
| 英文描述： | 250-mA MULTI-INPUT LOW-DROPOUT REGULATOR WITH V-AUX SWITCH |
| 中文描述： | 250 - mA的多輸入低壓差穩(wěn)壓器的V -輔助開關(guān) |
| 文件頁(yè)數(shù)： | 3/16頁(yè) |
| 文件大?。?/td> | 312K |
| 代理商： | AAT1203-S-T |
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Advanced Analog Technology, Inc.
Note 1
Recommended Operating Conditions
–
–
Advanced Analog Technology, Inc
.
–
–
Page 3 of 16 V 1.
0
AAT1203
The device deteriorates with increase in ambient temperature,
T . See Thermal Information section.
Parameter
Min
4.5
4.5
3.0
4.23
0
0
Typ
-
-
-
4.70
-
-
Max
5.5
5.5
3.6
5.17
250
70
Unit
V
V
V
μF
mA
5V Main Supply Input, VCC50
5V Standby Supply Input, VSB50
3.3V Auxiliary Supply Input, AUX33
Load Capacitance,
Load Current,
Ambient Temperature,
C
L
I
T
Electrical Characteristics Over Recommended Operating Free-Air
Temperature,
C
to 70
,
Parameter
Symbol
VCC50
VSB50
3.3V Output
OUT33
33
out
I
Line Regulation Voltage
(
)
VI
O
V
VSB50 or VCC50 = 4.5V to 5.5V
Load Regulation Voltage
(
)
IO
O
V
20 mA
From VCC50 VSB50 terminals,
L
I = 0mA to 250mA
I
AUX
I
From AUX33 terminal,
Out33 Load Current
33
Output Current Limit
LIMIT
I
Out33 Output short to 0V
Thermal Shutdown
(Note 2)
Thermal Hysteresis
(Note 2)
Minimal ESR to insure stability of regulated
output
Tested for grounded input
AUX33, VSB50 or VCC50 = GND,
Out33 = 3.3V
Threshold Voltage, Low
LO
V
VSB50 or VCC50
Threshold Voltage, High
V
VSB50 or VCC50
Auxiliary Switch
Resistance
AUX33 = 3.3V,
Thermal Impedance,
Junction-to-Ambient
(Note 3)
With copper for heat spreading
T
= 0
L
C
= 4.7μF (Unless Otherwise Specified)
Test Condition
Min
Typ
Max Unit
5V Inputs
4.5
5.0
5.5
V
= 250mA
3.135
3.300
3.465
V
-
2
-
mV
L
I
250 mA
-
40
-
mV
Quiescent Supply Current
I
-
1.0
3.0
mA
AUX
L
I = 0A
-
1.0
-
-
3.0
-
1.5
mA
L
I
0.25
-
A
TSD
T
150
-
180
hys
T
-
15
-
Load Capacitance
C
-
4.7
-
F
Reverse Leakage Output
Current
(
)
REV
Ikg
I
-
-
50
A
3.85
4.1
4.05
4.3
4.25
4.5
V
V
)
SWITCH
(
R
VSB50 = VCC50 = 0V,
L
I = 150mA
-
-
0.4
JA
R
θ
Without copper for heat spreading
-
100
-
-
70
-
/W
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