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參數(shù)資料
| 型號： | AAT1202 |
| 廠商： | Advanced Analog Technology,lnc. |
| 英文描述： | 250-mA MULTI-INPUT LOW-DROPOUT REGULATOR WITH DUAL -OUTPUT POWER MANAGEMENT |
| 中文描述： | 250 - mA的多輸入低壓差穩(wěn)壓器采用雙輸出電源管理 |
| 文件頁數(shù)： | 4/18頁 |
| 文件大?。?/td> | 407K |
| 代理商： | AAT1202 |
Advanced Analog Technology, Inc.
Electrical Characteristics over recommended operating free-air temperature, T
A
= 0
70
,CL = 4.7μF (unless otherwise noted)
Parameter
VCC50
5-V inputs
VSB50
OUT33 3.3-V output
Iout33+Iout18 = 250mA
OUT18 1.8-V output
Iout33=0, Iout18 = 200mA
VSB50 or VCC50 = 4.5V to 5.5V
V
O
20 mA
I
50
Quiescent supply current
From VCC50 VSB50 terminals, I
L
=
0 to 250mA
I
AUX
From AUX33 terminal, IL = 0A
I
L33
Out33 load current
I
L18
Out18 load current
I
LIMIT
Output current limit
Out33 or Out18 output shorted to
0V
T
TSD
NOTE 2
–
–
Advanced Analog Technology, Inc
. V 0.1
AAT1202
to
Test Condition
Min
4.5
Typ
5
Max Unit
5.5
V
3.135
1.71
3.3
1.8
2
40
3.465
1.89
V
V
mV
mV
V
O
VI
Line regulation voltage
IO
Load regulation voltage
I
L
250 mA
1.0
3.0
mA
1.0
3.0
1.5
mA
0.25
0.2
A
Thermal shutdown
150
180
T
hys
C
L
Load capacitance
Thermal hysteresis
NOTE 2
15
Minimal ESR to insure stability of
regulated output
4.7
μF
I
Ikg REV
Reverse leakage output current Tested for input that is grounded.
AUX33, VSB50 or VCC50 = GND,
Out33 = 3.3v
VSB50 or VCC50
↓
VSB50 or VCC50
↑
50
μA
V
LO
Threshold voltage, low
V
HI
Threshold voltage, high
R
SWITCH
Auxiliary switch resistance VSB50 = VCC50 = 0V,
3.85
4.1
4.05
4.3
4.25
4.5
0.4
V
V
AUX33 = 3.3V, I
L
= 150mA
Without copper for heat spreading
NOTE3 With copper for heat spreading
100
70
R
θ
JA
Thermal impedance,
Junction-to-ambient
/W
NOTE 2
NOTE 3
Design targets only. Not tested in production.
Please refer to "Thermal Information"
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