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AMS1117 の電気的特性と機能

AMS1117のメーカーはAdvanced Monolithic Systemsです、この部品の機能は「1A Adjustable/Fixed Low Dropout Linear Regulator」です。


製品の詳細 ( Datasheet PDF )

部品番号 AMS1117
部品説明 1A Adjustable/Fixed Low Dropout Linear Regulator
メーカ Advanced Monolithic Systems
ロゴ Advanced Monolithic Systems ロゴ 




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AMS1117 Datasheet, AMS1117 PDF,ピン配置, 機能
AMS1117
1A Adjustable/Fixed Low Dropout Linear Regulator
General Description
The AMS1117-ADJ and AMS1117-1.2,-1.5,-1.8,-2.5,-2.85,
-3.3 and-5 are low dropout three-terminal regulators with
1A output current capability. These devices have been
optimized for low voltage where transient response and
minimum input voltage are critical. The 2.85V version is
designed specifically to be used in Active Terminators for
SCSI bus.
On-chip thermal limiting provides protection against any
combination of overload and ambient temperatures that
would create excessive junction temperatures.
Unlike PNP type regulators where up to 10% of the output
current is wasted as quiescent current, the quiescent cur-
rent of the AMS1117 flows into the load, increasing effi-
ciency.
The AMS1117 series regulators are available in the indus-
try-standard SOT-223 and TO-252 power packages.
Key Features
- Low dropout voltage
- Load regulation: 0.2% typical
- Optimized for Low Voltage
- On-chip thermal limiting
- Standard SOT-223 and TO-252 packages
- Three-terminal adjustable or fixed low dropout
1.2V,1.5V,1.8V, 2.5V, 2.85V, 3.3V, 5V. Regulators
Applications
- Active SCSI terminators
- High efficiency linear regulators
- Post regulators for switching supplies
- Battery chargers
- 12V to 5V linear regulators
-Motherboard clock supplies
Typical Application
Figure 1. Typical Applications of AMS1117
Notice: The distance between Vout pin and Capacitor should not exceed 4cm for excellent performance
1
Advanced Monolithic Systems http://www.ams-semitech.com

1 Page





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


AMS1117 電子部品, 半導体
AMS1117
1A Adjustable/Fixed Low Dropout Linear Regulator
Typical Performance Characteristics (Continued)
0.260
1.255
1.250
1.245
1.240
1.235
1.225
1.220
1.215
1.210
-75 –50 –25 0 25 50 75 100 125 150 175
Junction Temperature ( )
Figure 5. Reference Voltage VS. Temperature
3.70
3.65
3.60
3.55
3.50
3.45
3.40
3.35
3.30
3.25
3.20
-75 –50 –25 0 25 50 75 100 125 150 175
Junction Temperature ( )
Figure 6. Output Voltage VS. Temperature
5
4
3
2
1
0
-75 –50 –25 0 25 50 75 100 125 150 175
Junction Temperature ( )
Figure 7. Minimum Load Current VS. Temperature
100
90
Note:
AMS1117 Only
80
70
60
50
40
30
20
10
0
-75 –50 –25 0 25 50 75 100 125 150 175
Junction Temperature ( )
Figure 8. ADJ Pin Current VS. Temperature
6
Advanced Monolithic Systems http://www.ams-semitech.com

6 Page



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共有リンク

Link :


部品番号部品説明メーカ
AMS1117

1A Adjustable/Fixed Low Dropout Linear Regulator

Advanced Monolithic Systems
Advanced Monolithic Systems
AMS1117

LOW DROPOUT VOLTAGE REGULATOR

ESTEK
ESTEK
AMS1117

1A Low Dropout Positive Adjustable

Kexin
Kexin
AMS1117

1A Low Dropout Linear Regulator

Tuofeng Semiconductor
Tuofeng Semiconductor


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