1A Adjustable/Fixed Low Dropout Linear Regulator
Block Diagram
VIN
Thermal
Limit
Current
Limit
VOUT
Substrate
GND (fixed output)
ADJ. (adjustable output)
Figure 3. Block Diagram of AMS1117
Electrical Characteristic
Typicals and limits appearing in normal type apply for TJ=25℃.Limits appearing in Boldface type apply over the entire junction temperature for
operation, -20℃to 125℃.
Min
Typ
Max
Symbol
Parameter
Conditions
Units
(Note 2) (Note 1) (Note 2)
Reference
Voltage
AMS1117
VREF
1.250
V
V
1.225
1.275
1.5V<=(VIN-VOUT)<=7V,10mA<=IOUT<=1A
IOUT = 10mA, VIN = 3.2V
1.200
1.200
1.176
1.152
1.224
1.248
AMS1117-1.2 ,2.7V<= V <=8.2V
IN
AMS1117-1.5 ,3.0V<= V <=8.5V
1.500
1.800
2.500
V
V
V
1.470
1.764
2.450
1.530
1.836
2.550
IN
AMS1117-1.8 ,3.3V<= V <=8.8V
IN
10mA<=
IOUT<=1A
AMS1117-2.5 ,4V<= V <= 9.5V
IN
VOUT
Output Voltage
AMS1117-2.85 , 4.35V <= V <= 9.85V
2.850
3.300
5.000
V
V
V
2.793
3.234
4.900
2.907
3.366
5.100
IN
AMS1117-3.3 , 4.8V<= V <=10.3V
IN
AMS1117-5.0,6.5V<=V <= 12V
IN
Advanced Monolithic Systems http://www.ams-semitech.com
3
AMSCO [ AMS(艾迈斯) ]
