TAITRON LM7847T-XX-BL 1a positive voltage regulator Datasheet

1A Positive
Voltage Regulator
LM7833/LM7847
1A Positive Voltage Regulator
General Description
• The TCI LM78XX family is monolithic fixed voltage regulator
integrated circuit. They are suitable for applications that
required supply current up to 1A.
D-PACK
(TO-252)
TO-220
• The LM78M is available in D-PACK (TO-252) and TO-220 packages.
.
Features
•
•
•
•
•
•
Applications
Output Current up to 1A
Fixed output voltage of 3.3V and 4.7V available
Thermal overload shutdown protection
Short circuit current limiting
Output transistor SOA protection
RoHS Compliance
•
•
•
•
High Efficiency Linear Regulator
Post Regulation for Switching Supply
Microprocessor Power Supply
Mother Board
Ordering Information
TAITRON COMPONENTS INCORPORATED www.taitroncomponents.com
Tel:
Fax:
(800)-TAITRON (800)-824-8766
(800)-TAITFAX (800)-824-8329
(661)-257-6060
(661)-257-6415
Rev. A/DX 2007-06-04
Page 1 of 6
1A Positive Voltage Regulator
LM7833/LM7847
Pin Configuration
Outline: D
D-PACK
(TO-252)
Outline: T
TO-220
Block Diagram
Rev. A/DX 2007-06-04
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Page 2 of 6
1A Positive Voltage Regulator
LM7833/LM7847
Absolute Maximum Ratings
Symbol
VIN
IOUT
PD
TJ
TOPR
TSTG
Note:
Description
Ratings
VOUT=3.3~18V
VOUT=20~24V
Output Current
D-PACK (TO-252)
Power Dissipation
TO-220
Junction Temperature
Operating Temperature Range
Storage Temperature Range
Unit
35
40
1
A
Internally Limited
mW
150
-20 ~ 150
-55 ~ 150
°C
°C
Input Voltage
V
1. Absolute maximum ratings are stress ratings only and functional device operation is not implied.
The device could be damaged beyond Absolute maximum ratings.
2. The maximum steady state usable output current are dependent on input voltage, heat sinking,
lead length of the package and copper pattern of PCB. The data are showed as electrical
characteristics table represents pulse test conditions with junction temperatures specified at
the initiation of test.
Electrical Characteristics (TJ=25° C, PD≦15W, unless otherwise specified)
For LM7833 (VIN=5.8V, IOUT=0.5A, C1=0.33µF, CO =0.1µF)
Symbol
VOUT
Description
Output Voltage
∆VOUT
Load Regulation
∆VOUT
Line Regulation
IQ
Quiescent Current
∆IQ
Quiescent Current Change
eN
Output Noise Voltage
Temperature coefficient of
VOUT
Ripple Rejection
Peak Output Current
Short-Circuit Current
Dropout Voltage
∆VO/∆T
RR
IPEAK
ISC
VD
LM7833
Unit
Test Conditions
3.432
3.465
33
17
33
33
8.0
1.0
0.5
-
V
V
mV
mV
mV
mV
mA
mA
mA
µV
IOUT=5mA-1.0A
5.8V≤VIN≤18.3V, IOUT=5mA-1.0A
IOUT=5mA-1.0A
IOUT=0.25A-0.75A
5.8V≤VIN≤18.3V
5.8V≤VIN≤18.3V, IOUT=1.0A
IOUT≦1.0A
5.8V≤VIN≤18.3V
IOUT=5mA-1.0A
10Hz≤f≤100KHz
-0.4
-
mV/℃
IOUT=5mA
57
1.8
250
2.0
-
dB
A
mA
V
6.3V≤VIN≤16.3V, f=120Hz
VIN=35V
-
Min.
Typ.
Max.
3.168
3.135
-
3.30
55
-
Rev. A/DX 2007-06-04
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Page 3 of 6
1A Positive Voltage Regulator
LM7833/LM7847
For LM7847 (VIN=9.7V, IOUT=0.5A, C1=0.33µF, CO =0.1µF)
LM7847
Symbol
Description
VOUT
Output Voltage
∆VOUT
Load Regulation
∆VOUT
Line Regulation
IQ
Quiescent Current
∆IQ
Quiescent Current Change
eN
Output Noise Voltage
Temperature coefficient of
VOUT
Ripple Rejection
Peak Output Current
Short-Circuit Current
Dropout Voltage
∆VO/∆T
RR
IPEAK
ISC
VD
Unit
Test Conditions
4.888
4.935
47
24
47
47
8.0
1.0
0.5
-
V
V
mV
mV
mV
mV
mA
mA
mA
µV
IOUT=5mA-1.0A
7.2V≤VIN≤19.7V, IOUT=5mA-1.0A
IOUT=5mA-1.0A
IOUT=0.25A-0.75A
7.2V≤VIN≤19.7V
7.2V≤VIN≤19.7V, IOUT=1.0A
IOUT≦1.0A
7.2V≤VIN≤19.7V
IOUT=5mA-1.0A
10Hz≤f≤100KHz
-0.6
-
mV/℃
IOUT=5mA
80
1.8
250
2.0
-
dB
A
mA
V
7.7V≤VIN≤17.7V, f=120Hz
VIN=35V
-
Min.
Typ.
Max.
4.512
4.465
-
4.70
40
62
-
Typical Application
Rev. A/DX 2007-06-04
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Page 4 of 6
1A Positive Voltage Regulator
LM7833/LM7847
Dimensions in mm (inches)
D-PACK
(TO-252)
TO-220
Rev. A/DX 2007-06-04
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Page 5 of 6
1A Positive Voltage Regulator
LM7833/LM7847
How to contact us:
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28040 WEST HARRISON PARKAWAY, VALENCIA, CA 91355-4162
Tel: (800) TAITRON (800) 824-8766 (661) 257-6060
Fax: (800) TAITFAX (800) 824-8329 (661) 257-6415
Email: [email protected]
Http://www.taitroncomponents.com
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Tel: +86-21-5424-9942
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Rev. A/DX 2007-06-04
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Page 6 of 6
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