AMS AMS1117-1.5 0.8a adjustable/fixed low dropout linear regulator Datasheet

AMS1117
0.8A Adjustable/Fixed Low Dropout Linear Regulator
General Description
Key Features
The AMS1117-ADJ and AMS1117-1.2,-1.5,-1.8,-1.9,-2.5
-3.3 and-5.0 are low dropout three-terminal regulators with
0.8A output current capability.These devices have been
optimized for low voltage where transient response and
minimum input voltage are critical.
On-chip thermal limiting provides protection against any
combination of overload and ambient temperatures that
would create excessive junction temperatures.
-
Low dropout voltage
Load regulation: 0.2% typical
Optimized for Low Voltage
On-chip thermal limiting
Standard SOT-89 packages
Three-terminal adjustable or fixed low dropout
1.2V,1.5V,1.8V, 1.9V, 2.5V, 3.3V, 5V. Regulators
Applications
- High efficiency linear regulators
- Post regulators for switching supplies
- Battery chargers
- 12V to 5V linear regulators
- Motherboard clock supplies
The AMS1117 series regulators are available in the industry-standard SOT-89 packages.
Typical Application
Typical Applications of AMS1117
Notice: The distance between Vout pin and Capacitor should not exceed 4cm for excellent performance
1
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AMS1117
SOT-89
Unit:mm
1.50 ±0.1
4.50±0.1
2.50±0.1
4.00±0.1
1.80±0.1
0.44±0.1
0.40±0.1
0.53±0.1
2.60±0.1
0.48±0.1
0.80±0.1
3
2
1
3.00±0.1
1 Adj(GND)
21.Base
Vout
2.Collector
33.Emitter
Vin
■ Absolute Maximum Ratings Ta = 25℃
Parameter
Symbol
Rating
Unit
Maximum Input Voltage
Vin
18
V
Power Dissipation
PD
Internally Limited
Operating Junction Temperature Range
TJ
150
℃
Storage Temperature
TST
-65 to +150
℃
Block Diagram
3
2
Vout
+
+
1.25V
-
+
CURRENT
LIMIT
1
+
Thermal
Shutdown
-
Vin
2
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GND
(FIXED)
1
Adj
1
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AMS1117
■ Electrical Characteristics Ta = 25℃
Parameter
Reference Voltage
Output Voltage
Testconditons
Vref
Vout
Min
Typ
Max
Unit
AMS1117-ADJ 10mA≤Iout≤800mA, 1.5V≤Vin-Vout≤12V 1.225
AMS1117-1.2
1.250
1.275
V
0≤Iout≤800mA,2.6V≤Vin-Vout≤12V
1.175
1.200
1.225
V
AMS1117-1.5
0≤Iout≤800mA, 2.9V≤Vin-Vout≤12V
1.470
1.500
1.530
V
AMS1117-1.8
0≤Iout≤800mA, 3.2V≤Vin-Vout≤12V
1.764
1.800
1.836
V
AMS1117-1.9
0≤Iout≤800mA,3.3V≤Vin-Vout≤12V
1.862
1.900
1.938
V
AMS1117-2.5
0≤Iout≤800mA, 3.9V≤Vin-Vout≤12V
2.450
2.500
2.550
V
AMS1117-3.3
0≤Iout≤800mA, 4.75V≤Vin-Vout≤12V
3.234
3.300
3.366
V
AMS1117-5.0
0≤Iout≤800mA, 6.5V≤Vin-Vout≤12V
4.900
5.000
5.100
V
AMS1117-ADJ Iout=10mA,1.5V≤Vin-Vout≤13.775V
Line Regulation
△Vout
0.035
0.2
%
AMS1117-1.2
Iout=10mA,2.6V≤Vin-Vout≤12V
9
12
mV
AMS1117-1.5
Iout=10mA, 2.9V≤Vin-Vout≤12V
9
12
mV
AMS1117-1.8
Iout=10mA, 3.2V≤Vin-Vout≤12V
9
12
mV
AMS1117-1.9
Iout=10mA,3.3V≤Vin-Vout≤12V
9
12
mV
AMS1117-2.5
Iout=10mA, 3.9V≤Vin-Vout≤12V
9
12
mV
AMS1117-3.3
Iout=10mA, 4.75V≤Vin-Vout≤12V
9
12
mV
Iout=10mA, 6.5V≤Vin-Vout≤12V
9
12
mV
0.2
0.4
%
10
mV
10
mV
AMS1117-5.0
AMS1117-ADJ Vin-Vout=3V,10mA≤Iout≤800mA
Load Regulation
△Vout
AMS1117-1.2
Vin=2.6V,0≤Iout≤800mA
3
AMS1117-1.5
Vin=2.9V,0≤Iout≤800mA
3
AMS1117-1.8
Vin=3.2V,0≤Iout≤800mA
3
10
mV
AMS1117-1.9
Vin=3.3V,0≤Iout≤800mA
3
10
mV
AMS1117-2.5
Vin=3.9V,0≤Iout≤800mA
3
10
mV
AMS1117-3.3
Vin=4.75V,0≤Iout≤800mA
3
10
mV
mV
AMS1117-5.0
3
10
1.11
1.2
AMS1117-XXX △Vout,△Vref=1%,Iout=500mA
1.18
1.25
V
△Vout,△Vref=1%,Iout=800mA
1.26
1.3
V
Vin=6.5V,0≤Iout≤800mA
△Vout,△Vref=1%,Iout=100mA
Dropout Voltage
Current Limit
Vin-Vout
Ilimit
Minimum Load Current
Quiescent current
Iq
AMS1117-XXX VIN-VOUT = 5V,Tj=25℃
1.25
V
1.4
1.6
A
AMS1117-XXX AMS1117-ADJ
5
10
mA
AMS1117-1.2 Vin-Vout=1.25V
4
8
mA
AMS1117-1.5 Vin-Vout=1.25V
4
8
mA
AMS1117-1.8 Vin-Vout=1.25V
4
8
mA
AMS1117-1.9 Vin-Vout=1.25V
4
8
mA
AMS1117-2.5 Vin-Vout=1.25V
4
8
mA
AMS1117-3.3 Vin-Vout=1.25V
4
8
mA
AMS1117-5.0 Vin-Vout=1.25V
4
8
mA
120
μA
Adjust Pin Current
(Adjutable Version)
Iadj
55
Adjust Pin Current
Change
Ichange
0.2
3
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μA
AMS1117
Typical Characteristics
Fig.2 Load Regulation vs Temperature
Fig.1 Dropout Voltage vs Output Current
Fig.3 Percent Change in Output Voltage vs Temperature
Fig.4 Line Regulation
Fig.5 Line Transient Response
Fig.6 Load Transient Response
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AMS1117
Ordering Information
Deviece
Packaging
AMS1117-X.X
SOT-89
Shipping
1000/Tape&Reel
Marking
Marking
1117-X.X
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