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AAT1203 Datasheet, PDF (2/16 Pages) Advanced Analog Technology, Inc. – 250-mA MULTI-INPUT LOW-DROPOUT REGULATOR WITH V-AUX SWITCH
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Advanced Analog Technology, Inc.
Function Table
INPUT VOLTAGE STATUS
(V)
VCC50
0
VSB50
0
AUX33
0
0
0
3.3
0
5
0
0
5
3.3
5
0
0
5
0
3.3
5
5
0
5
5
3.3
INPUT SELECTED
VCC50/VSB50/AUX33
None
AUX33
VSB50
VSB50
VCC50
VCC50
VCC50
VCC50
OUTPUT
V
OUT33
0
3.3
3.3
3.3
3.3
3.3
3.3
3.3
AAT1203
OUTPUT
I mA
Iout33
0
250
250
250
250
250
250
250
Pin Description
TERMINAL
NAME
TERMINAL NO.
I/O
DESCRIPTION
1
I 5V Standby Supply Input
2
I 5V Main Supply Input
3
O 3.3V Regulated Output
4
I 3.3V Auxiliary Supply Input
5
I Ground
6
I Ground
7
I Ground
8
I Ground
Absolute Maximum Ratings
• Main Supply Voltage, V(VCC50) …………….…….……………………………… − 0.5 V~7V
• Standby Supply Voltage, V(VSB50) ……………….……………………………….. − 0.5 V~7V
• Auxiliary Supply Voltage, V(AUX33) …………….……………………….……….. − 0.5 V~7V
• Output Current Limit, I(LIMIT) ………………………………….………………….1.5A
• Continuous Power Dissipation, Pd see Note 1 …………….………………….1.1W
• Electrostatic Discharge Susceptibility, Human Body Mode………………….…….2kV
• Operating Ambient Temperature Range, TC ……………….……………..……….0 to +70
• Storage Temperature Range, Tstorage …………….…………….……………… − 45 to +125
• Operating Junction Temperature Range, TJ …………….……………………….. − 5 to +130
• Lead Temperature Soldering for 10 seconds , T(LEAD) ………………….…...260
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– Advanced Analog Technology, Inc. –
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