LM1117/LM1117I
800mA Low-Dropout Linear Regulator
General Description
The
LM1117is a ries of low dropout voltage regulators with a dropout of 1.2V at 800mA of load current.It has the same pin-out as National Semiconductor’s industry standard LM317.
The LM1117is available in an adjustable version,which can t the output voltage from 1.25V to 13.8V with only two external resistors.In addition,it is also available in five fixed voltages,1.8V,2.5V,2.85V,3.3V,and 5V.
The LM1117offers current limiting and thermal shutdown.Its circuit includes a zener trimmed bandgap reference to as-sure output voltage accuracy to within ±1%.
The LM1117ries is available in LLP ,TO-263,SOT-223,TO-220,and TO-252D-PAK packages.A minimum of 10µF tantalum capacitor is required at the output to improve the transient respon and stability.
Features
n Available in 1.8V,2.5V,2.85V,3.3V,5V,and Adjustable Versions
n Space Saving SOT-223and LLP Packages n Current Limiting and Thermal Protection n Output Current 800mA n Line Regulation 0.2%(Max)n Load Regulation 0.4%(Max)n Temperature Range —
LM11170˚C to 125˚C —LM1117I −40˚C to 125˚C
Applications
n 2.85V Model for SCSI-2Active Termination n Post Regulator for Switching DC/DC Converter n High Efficiency Linear Regulators n Battery Charger
n
Battery Powered Instrumentation
Typical Application
Active Terminator for SCSI-2Bus
10091905
Fixed Output Regulator
10091928
June 2004
LM1117/LM1117I 800mA Low-Dropout Linear Regulator
©2004National Semiconductor Corporation
Ordering
Information一年级阅读手抄报
Package Temperature
Range Part Number Packaging Marking
Transport Media NSC Drawing 3-lead SOT-223
0˚C to +125˚C
LM1117MPX-ADJ N03A Tape and Reel MP04A
LM1117MPX-1.8N12A Tape and Reel LM1117MPX-2.5N13A Tape and Reel LM1117MPX-2.85N04A Tape and Reel LM1117MPX-3.3N05A Tape and Reel LM1117MPX-5.0
N06A Tape and Reel −40˚C to +125˚C
LM1117IMPX-ADJ N03B Tape and Reel LM1117IMPX-3.3N05B Tape and Reel LM1117IMPX-5.0
N06B Tape and Reel
3-lead TO-220
0˚C to +125˚C
LM1117T-ADJ LM1117T-ADJ Rails T03B LM1117T-1.8LM1117T-1.8Rails LM1117T-2.5LM1117T-2.5Rails LM1117T-2.85LM1117T-2.85Rails LM1117T-3.3LM1117T-3.3Rails LM1117T-5.0
LM1117T-5.0Rails 3-lead TO-252
0˚C to +125˚C
LM1117DTX-ADJ LM1117DT-ADJ Tape and Reel TD03B LM1117DTX-1.8LM1117DT-1.8Tape and R
eel LM1117DTX-2.5LM1117DT-2.5Tape and Reel LM1117DTX-2.85LM1117DT-2.85Tape and Reel LM1117DTX-3.3LM1117DT-3.3Tape and Reel LM1117DTX-5.0
LM1117DT-5.0Tape and Reel −40˚C to +125˚C
LM1117IDTX-ADJ LM1117IDT-ADJ Tape and Reel LM1117IDTX-3.3LM1117IDT-3.3Tape and Reel LM1117IDTX-5.0
LM1117IDT-5.0Tape and Reel 8-lead LLP
0˚C to +125˚C
LM1117LDX-ADJ 1117ADJ Tape and Reel LDC08A LM1117LDX-1.81117-18Tape and Reel LM1117LDX-2.51117-25Tape and Reel LM1117LDX-2.851117-28Tape and Reel LM1117LDX-3.31117-33Tape and Reel LM1117LDX-5.0
1117-50Tape and Reel −40˚C to 125˚C
LM1117ILDX-ADJ 1117IAD Tape and Reel LM1117ILDX-3.31117I33Tape and Reel LM1117ILDX-5.0
1117I50Tape and Reel TO-263
强龙不压地头蛇
0˚C to +125˚C
LM1117SX-ADJ LM1117SADJ Tape and Reel TS3B LM1117SX-2.85LM1117S2.85Tape and Reel LM1117SX-3.3LM1117S3.3Tape and Reel LM1117SX-5.0
关于诸葛亮的对联LM1117S5.0
Tape and Reel
L M 1117/L M 1117I
2
Block
Diagram
10091901
Connection Diagrams
SOT-223
10091904
Top View
TO-220
10091902
Top View
TO-252
10091938
Top View
悬壶济世下一句
TO-263
10091944
Top View
10091945
Side View
LLP
10091946
When using the LLP package
Pins2,3&4must be connected together and
Pins5,6&7must be connected together
Top View
LM1117/LM1117I
3
Absolute Maximum Ratings
(Note 1)
If Military/Aerospace specified devices are required,plea contact the National Semiconductor Sales Office/Distributors for availability and specifications.Maximum Input Voltage (V IN to GND)20V
Power Dissipation (Note 2)Internally Limited
Junction Temperature (T J )(Note 2)
150˚C
Storage Temperature Range -65˚C to 150˚C
Lead Temperature
TO-220(T)Package 260˚C,10c SOT-223(IMP)Package 260˚C,4c
ESD Tolerance (Note 3)
2000V
Operating Ratings (Note 1)
Input Voltage (V IN to GND)
15V
Junction Temperature Range (T J )(Note 2)LM11170˚C to 125˚C LM1117I
−40˚C to 125˚C
LM1117Electrical Characteristics
Typicals and limits appearing in normal type apply for T J =25˚C.Limits appearing in Boldface type apply over the entire junc-tion temperature range for operation,0˚C to 125˚C.Symbol Parameter Conditions
Min (Note 5)Typ (Note 4)Max (Note 5)Units
V REF
Reference Voltage
LM1117-ADJ
I OUT =10mA,V IN -V OUT =2V,T J =25˚C 10mA ≤I OUT ≤800mA,1.4V ≤V IN -V OUT ≤10V
1.2381.225
1.2501.250
1.2621.270
V V
V OUT
Output Voltage
LM1117-1.8
I OUT =10mA,V IN =3.8V,T J =25˚C 0≤I OUT ≤800mA,3.2V ≤V IN ≤10V 1.7821.746 1.8001.800 1.8181.854V V LM1117-2.5
I OUT =10mA,V IN =4.5V,T J =25˚C 0≤I OUT ≤800mA,3.9V ≤V IN ≤10V 2.4752.450 2.5002.500 2.5252.550V V LM1117-2.85销售权
I OUT =10mA,V IN =4.85V,T J =25˚C 0≤I OUT ≤800mA,4.25V ≤V IN ≤10V 0≤I OUT ≤500mA,V IN =4.10V 2.8202.7902.790 2.8502.8502.850 2.8802.9102.910V V V LM1117-3.3
I OUT =10mA,V IN =5V T J =25˚C 0≤I OUT ≤800mA,4.75V ≤V IN ≤10V 3.2673.235 3.3003.300 3.3333.365V V LM1117-5.0
I OUT =10mA,V IN =7V,T J =25˚C 0≤I OUT ≤800mA,6.5V ≤V IN ≤12V
4.9504.900
5.0005.000 5.0505.100V V ∆V OUT
Line Regulation (Note 6)
LM1117-ADJ
I OUT =10mA,1.5V ≤V IN -V OUT ≤13.75V 0.0350.2%LM1117-1.8
I OUT =0mA,3.2V ≤V IN ≤10V 16mV LM1117-2.5
I OUT =0mA,3.9V ≤V IN ≤10V 1
6
mV
LM1117-2.85
I OUT =0mA,4.25V ≤V IN ≤10V 16mV LM1117-3.3
I OUT =0mA,4.75V ≤V IN ≤15V 16mV LM1117-5.0
I OUT =0mA,6.5V ≤V IN ≤15V
1
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10
mV
L M 1117/L M 1117I
4
LM1117Electrical
Characteristics(Continued)
Typicals and limits appearing in normal type apply for T J=25˚C.Limits appearing in Boldface type apply over the entire junc-tion temperature range for operation,0˚C to125˚C.
Symbol Parameter Conditions
Min
(Note5)
Typ
(Note4)
Max
(Note5)
Units
∆V OUT Load Regulation
(Note6)LM1117-ADJ
V IN-V OUT=3V,10≤I OUT≤800mA0.20.4% LM1117-1.8
V IN=3.2V,0≤I OUT≤800mA
110mV
LM1117-2.5
V IN=3.9V,0≤I OUT≤800mA
110mV
LM1117-2.85
V IN=4.25V,0≤I OUT≤800mA110mV LM1117-3.3
V IN=4.75V,0≤I OUT≤800mA110mV LM1117-5.0
V IN=6.5V,0≤I OUT≤800mA115mV
V IN-V OUT Dropout Voltage
(Note7)I OUT=100mA 1.10 1.20V I OUT=500mA 1.15 1.25V I OUT=800mA 1.20 1.30V
I LIMIT Current Limit V IN-V OUT=5V,T J=25˚C80012001500mA
Minimum Load Current(Note8)LM1117-ADJ
V IN=15V 1.75mA
Quiescent Current LM1117-1.8
V IN≤15V
510mA
LM1117-2.5
V IN≤15V
510mA
LM1117-2.85
V IN≤10V510mA
LM1117-3.3
V IN≤15V510mA
LM1117-5.0
V IN≤15V510mA Thermal Regulation T A=25˚C,30ms Pul0.010.1%/W Ripple Regulation f RIPPLE=120Hz,V IN-V OUT=3V V RIPPLE
=1V PP
6075dB Adjust Pin Current60120µA
Adjust Pin Current Change 10≤I OUT≤800mA,
1.4V≤V IN-V OUT≤10V0.25µA
Temperature Stability0.5% Long Term Stability T A=125˚C,1000Hrs0.3% RMS Output Noi(%of V OUT),10Hz≤f≤10kHz0.003%
Thermal Resistance Junction-to-Ca 3-Lead SOT-22315.0˚C/W 3-Lead TO-220 3.0˚C/W 3-Lead TO-25210˚C/W
Thermal Resistance Junction-to-Ambient (No air flow)3-Lead SOT-223(No heat sink)136˚C/W
3-Lead TO-220(No heat sink)79˚C/W
3-Lead TO-252(Note9)(No heat sink)92˚C/W
3-Lead TO-26355˚C/W
8-Lead LLP(Note10)40˚C/W
LM1117/LM1117I
5
留学印度
LM1117I Electrical
Characteristics
Typicals and limits appearing in normal type apply for T J =25˚C.Limits appearing in Boldface type apply over the entire junc-tion temperature range for operation,−40˚C to 125˚C.Symbol Parameter Conditions
Min (Note 5)Typ (Note 4)Max (Note 5)Units
V REF
Reference Voltage
LM1117I-ADJ
I OUT =10mA,V IN -V OUT =2V,T J =25˚C 10mA ≤I OUT ≤800mA,1.4V ≤V IN -V OUT ≤10V
1.2381.200
1.2501.250
1.2621.290
V V
V OUT
Output Voltage
LM1117I-3.3
I OUT =10mA,V IN =5V,T J =25˚C 0≤I OUT ≤800mA,4.75V ≤V IN ≤10V 3.2673.168 3.3003.300 3.3333.432V V LM1117I-5.0
I OUT =10mA,V IN =7V,T J =25˚C 0≤I OUT ≤800mA,6.5V ≤V IN ≤12V
4.9504.800
5.0005.000 5.0505.200V V ∆V OUT
Line Regulation (Note 6)
LM1117I-ADJ
I OUT =10mA,1.5V ≤V IN -V OUT ≤13.75V 0.0350.3%LM1117I-3.3
I OUT =0mA,4.75V ≤V IN ≤15V 110mV LM1117I-5.0
I OUT =0mA,6.5V ≤V IN ≤15V
115mV ∆V OUT
Load Regulation (Note 6)
LM1117I-ADJ
V IN -V OUT =3V,10≤I OUT ≤800mA 0.20.5%LM1117I-3.3
V IN =4.75V,0≤I OUT ≤800mA 115mV LM1117I-5.0
V IN =6.5V,0≤I OUT ≤800mA
120mV V IN -V OUT
Dropout Voltage (Note 7)I OUT =100mA 1.10 1.30V I OUT =500mA 1.15 1.35V I OUT =800mA
1.20 1.40V I LIMIT
Current Limit V IN -V OUT =5V,T J =25˚C 80012001500mA Minimum Load Current (Note 8)LM1117I-ADJ V IN =15V 1.75mA Quiescent Current
征途手机版LM1117I-3.3V IN ≤15V 515mA LM1117I-5.0V IN ≤15V
515mA Thermal Regulation T A =25˚C,30ms Pul
0.010.1
%/W Ripple Regulation f RIPPLE =120Hz,V IN -V OUT =3V V RIPPLE =1V PP
6075dB
Adjust Pin Current 60120µA Adjust Pin Current Change
10≤I OUT ≤800mA,1.4V ≤V IN -V OUT ≤10V 0.210
µA Temperature Stability 0.5%Long Term Stability T A =125˚C,1000Hrs
0.3%RMS Output Noi (%of V OUT ),10Hz ≤f ≤10kHz 0.003%Thermal Resistance Junction-to-Ca 3-Lead SOT-22315.0˚C/W 3-Lead TO-252
10˚C/W Thermal Resistance Junction-to-Ambient No air flow)
3-Lead SOT-223(No heat sink)136˚C/W 3-Lead TO-252(No heat sink)(Note 9)92˚C/W 8-Lead LLP(Note 10)40
˚C/W
Note 1:Absolute Maximum Ratings indicate limits beyond which damage to the device may occur.Operating Ratings indicate conditions for which the device is intended to be functional,but specific performance is not guaranteed.For guaranteed specifications and the test conditions,e the Electrical Characteristics.
L M 1117/L M 1117I
6
