Linear Regulator. AF1117 Datasheet

AF1117 Regulator. Datasheet pdf. Equivalent

AF1117 Datasheet
Recommendation AF1117 Datasheet
Part AF1117
Description 1A Bipolar Linear Regulator
Feature AF1117; 1A Bipolar Linear Regulator  Features  Maximum output current is 1A  Range of operation input vol.
Manufacture AFSEMI
Datasheet
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AFSEMI AF1117
1A Bipolar Linear Regulator
Features
Maximum output current is 1A
Range of operation input voltage: Max 15V
Line regulation: 0.03%/V (typ.)
Standby current: 2mA (typ.)
Load regulation: 0.2%/A (typ.)
Environment Temperature: -20~85
AF1117
Applications
Power Management for ComputerMother
Board, Graphic Card
LCD Monitor and LCD TV
DVD Decode Board
ADSL Modem
Post Regulators For Switching Supplies
General Description
Typical Application
AF1117 is a series of low dropout three-terminal
regulators with a dropout of 1.3V at 1A load current.
AF1117 features a very low standby current 2mA compared
to 5mA of competitor.
Other than a fixed version, Vout = 1.2V, 1.8V, 2.5V, 3.3V,
5V, and 12V, AF1117 has an adjustable version, which can
provide an output voltage from 1.25 to 12V with only two
external resistors.
AF1117 offers thermal shut down and current limit
functions, to assure the stability of chip and power system.
And it uses trimming technique toguarantee output voltage
accuracy within 2%. Other output voltage accuracy can be
customized on demand, such as 1%.AF1117 is available in
SOT-223, TO-252 power package.
Application circuit of AF1117 fixed version
Typical Electrical Characteristic
Temperature(℃)
AF-1V0
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AFSEMI AF1117
Block Diagram
AF1117
Pin Configuration
TO-223
123
1Vss/ADJ
2Vout
3Vin
TO-252
2
1
3
Absolute Maximum Rating
Parameter
Value
Max Input Voltage
Max Power Dissipation(Pd)
1.2 W
Max Output Current
Recommended operating junction temperature(Tj)
Max Operating Junction Temperature(Tj)
Ambient Temperature(Ta)
Package Thermal Resistance
SOT-223
TO-252
Storage Temperature(Ts)
Lead Temperatu e & Time
1A
-20~125
150
-4085
20/ W
12.5/ W
-40- 150
260, 10S
Caution: Exceed these limits to damage to the device. Exposure to absolute maximum rating conditions may affect
device reliability.
Exceptional for AF1117A-12V, the maximum input voltage for AF1117A-12V is 20V.
Thermal Information
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AF-1V0
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AFSEMI AF1117
Parameter
Package thermal
resistance
Package
SOT-223
TO-252
Selection Table
Marking
AF1117
XXX YYZZ
Part No.
XX=1V2
XXX=1V8
XXX=2V5
XXX=2V8
XXX=3V3
XXX=5V0
XXX=ADJ
YYZZ
Ordering Information
AF1117 XXX L/O
Rating
20
12.5
AF1117
Unit
/W
/W
Output Voltage
1.2V
1.8V
2. 5V
2.85V
3.3V
5.0V
Adj
Date code
Package
SOT-223
TO-252
Package type: L(SOT-223)O(TO-252)
Output Voltages(1.2~12.0V)
Product code
Electrical Characteristics
Symbol Parameter
Conditions
Vref Reference
voltage
AF1117-ADJ
10mA≤Iout≤1A,Vin=3.25V
AF1117-1.2V
0≤Iout≤1A , Vin=3.2V
AF1117-1.8V
0≤Iout≤1A , Vin=3.8V
Vout Output voltage
AF1117-2.5V
0≤Iout≤1A , Vin=4.5V
AF1117-2.85V
0Iout1A , Vin=4.85V
Min Typ
1.225 1.25
1.176 1.2
1.764 1.8
2.45 2.5
2.793 2.85
Max
1.275
1.224
1.836
2.55
2.907
Unit
V
V
V
V
V
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