REG1117FA [BB]
800mA and 1A Low Dropout Positive Regulator 1.8V, 2.5V, 2.85V, 3.3V, 5V, and Adjustable; 800毫安和1A低压差稳压器正1.8V,2.5V , 2.85V , 3.3V ,5V和可调型号: | REG1117FA |
厂家: | BURR-BROWN CORPORATION |
描述: | 800mA and 1A Low Dropout Positive Regulator 1.8V, 2.5V, 2.85V, 3.3V, 5V, and Adjustable |
文件: | 总16页 (文件大小:262K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
REG1117
REG1117A
SBVS001D − OCTOBER 1992 − REVISED JULY 2004
800mA and 1A Low Dropout Positive Regulator
1.8V, 2.5V, 2.85, 3.3V, 5V, and Adjustable
FEATURES
DESCRIPTION
D
FIXED AND ADJUSTABLE VERSIONS
2.85V MODEL FOR SCSI-2 ACTIVE
TERMINATION
The REG1117 is a family of easy-to-use three-terminal
voltage regulators. The family includes a variety of fixed-
and adjustable-voltage versions, two currents (800mA and
1A) and two package types (SOT-223 and DDPAK). See
the chart below for available options.
D
D
OUTPUT CURRENT:
REG1117: 800mA max
Output voltage of the adjustable versions is set with two
external resistors. The REG1117 low dropout voltage
allows its use with as little as 1V input-output voltage
differential.
REG1117A: 1A max
OUTPUT TOLERANCE: + 1% max
DROPOUT VOLTAGE:
REG1117: 1.2V max at I = 800mA
D
D
O
Laser trimming assures excellent output voltage accuracy
without adjustment. An NPN output stage allows output
stage drive to contribute to the load current for maximum
efficiency.
REG1117A: 1.3V max at I = 1A
O
D
D
D
INTERNAL CURRENT LIMIT
THERMAL OVERLOAD PROTECTION
SOT-223 AND DDPAK SURFACE-MOUNT
PACKAGES
800mA
1A
VOLTAGE
1.8V
SOT-223 DDPAK SOT-223 DDPAK
n
n
n
n
APPLICATIONS
2.5V
D
D
D
D
D
SCSI-2 ACTIVE TERMINATION
2.85V
3.3V
n
n
n
n
HAND-HELD DATA COLLECTION DEVICES
HIGH EFFICIENCY LINEAR REGULATORS
BATTERY-POWERED INSTRUMENTATION
BATTERY MANAGEMENT CIRCUITS FOR
NOTEBOOK AND PALMTOP PCs
CORE VOLTAGE SUPPLY: FPGA, PLD, DSP,
CPU
n
5V
n
n
Adjustable
n
D
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments
semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
ꢀꢁ ꢂ ꢃꢄ ꢅ ꢆꢇ ꢂꢈ ꢃ ꢉꢆꢉ ꢊꢋ ꢌꢍ ꢎ ꢏꢐ ꢑꢊꢍꢋ ꢊꢒ ꢓꢔ ꢎ ꢎ ꢕꢋꢑ ꢐꢒ ꢍꢌ ꢖꢔꢗ ꢘꢊꢓ ꢐꢑꢊ ꢍꢋ ꢙꢐ ꢑꢕꢚ ꢀꢎ ꢍꢙꢔ ꢓꢑꢒ
ꢓ ꢍꢋ ꢌꢍꢎ ꢏ ꢑꢍ ꢒ ꢖꢕ ꢓ ꢊ ꢌꢊ ꢓ ꢐ ꢑꢊ ꢍꢋꢒ ꢖ ꢕꢎ ꢑꢛꢕ ꢑꢕ ꢎ ꢏꢒ ꢍꢌ ꢆꢕꢜ ꢐꢒ ꢇꢋꢒ ꢑꢎ ꢔꢏ ꢕꢋꢑ ꢒ ꢒꢑ ꢐꢋꢙ ꢐꢎ ꢙ ꢝ ꢐꢎ ꢎ ꢐ ꢋꢑꢞꢚ
ꢀꢎ ꢍ ꢙꢔꢓ ꢑ ꢊꢍ ꢋ ꢖꢎ ꢍ ꢓ ꢕ ꢒ ꢒ ꢊꢋ ꢟ ꢙꢍ ꢕ ꢒ ꢋꢍꢑ ꢋꢕ ꢓꢕ ꢒꢒ ꢐꢎ ꢊꢘ ꢞ ꢊꢋꢓ ꢘꢔꢙ ꢕ ꢑꢕ ꢒꢑꢊ ꢋꢟ ꢍꢌ ꢐꢘ ꢘ ꢖꢐ ꢎ ꢐꢏ ꢕꢑꢕ ꢎ ꢒꢚ
Copyright 1992−2004, Texas Instruments Incorporated
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SBVS001D − OCTOBER 1992 − REVISED JULY 2004
This integrated circuit can be damaged by ESD. Texas
Instruments recommends that all integrated circuits be
handledwith appropriate precautions. Failure to observe
(1)
ABSOLUTE MAXIMUM RATINGS
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . Internally Limited
Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +15V
Operating Junction Temperature Range . . . . . . . . −40°C to +125°C
proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to
complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes could
cause the device not to meet its published specifications.
Storage Temperature Range . . . . . . . . . . . . . . . . . −65°C to +150°C
(2)
Lead Temperature (soldering, 10s)
. . . . . . . . . . . . . . . . . +300°C
(1)
(2)
Stresses above these ratings may cause permanent damage.
See Soldering Methods section.
CONNECTION DIAGRAM
Front View
Plastic DDPAK
Plastic SOT−223
Tab is
VOUT
Tab is VOUT
Ground VOUT
(Adj.)(1)
VIN
Ground VOUT
(Adj.)(1)
VIN
NOTE: (1) Adjustable−Voltage Model.
2
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SBVS001D − OCTOBER 1992 − REVISED JULY 2004
(1)
PACKAGE/ORDERING INFORMATION
OPERATING
TEMPERATURE
RANGE
TRANSPORT
MEDIA,
QUANTITY
PACKAGE
DESIGNATOR
PACKAGE
MARKING
ORDERING
NUMBER
PRODUCT
REG1117-2.85
REG1117-3.3
V /I
PACKAGE-LEAD
O
O
REG1117-2.85
REG1117-2.85
REG1117-3.3
REG1117-3.3
Rails, 80
−40°C to
+125°C
2.85/800mA
3.3/800mA
SOT223-3
DCY
DCY
BB11172
Tape and Reel,
2500
Rails, 80
−40°C to
+125°C
SOT223-3
BB11174
Tape and Reel,
2500
Tape and Reel,
50
REG1117F-3.3KTTT
−40°C to
+125°C
REG1117F-3.3
3.3/800mA
DDPAK-3
KTT
BB1117F4
Tape and Reel,
500
REG1117F-3.3/500
REG1117-5
Rails, 80
−40°C to
+125°C
REG1117-5
REG1117
5V/800mA
Adj./800mA
1.8V/1A
SOT223-3
SOT223-3
SOT223-3
DCY
DCY
DCY
BB11175
BB1117
Tape and Reel,
2500
REG1117-5
REG1117
Rails, 80
−40°C to
+125°C
Tape and Reel,
2500
REG1117
REG1117A-1.8
REG1117A-1.8
Rails, 80
−40°C to
+125°C
REG1117A-1.8
R111718
Tape and Reel,
2500
Tape and Reel,
50
REG1117FA-1.8KTTT
−40°C to
+125°C
REG1117FA-1.8
REG1117A-2.5
REG1117FA-2.5
1.8/1A
2.5/1A
2.5/1A
DDPAK-3
SOT223-3
DDPAK-3
KTT
DCY
KTT
REG1117FA1.8
R111725
Tape and Reel,
500
REG1117FA-1.8/500
REG1117A-2.5
Rails, 80
−40°C to
+125°C
Tape and Reel,
2500
REG1117A-2.5
Tape and Reel,
50
REG1117FA-2.5KTTT
REG1117FA-2.5/500
REG1117FA-5/KTTT
−40°C to
+125°C
REG1117FA2.5
Tape and Reel,
500
Tape and Reel,
50
−40°C to
+125°C
REG1117FA-5
REG1117A
5/1A
DDPAK-3
SOT223-3
DDPAK-3
KTT
DCY
KTT
BB1117FA5.0
BB1117A
Tape and Reel,
500
REG1117FA-5/500
REG1117A
Rails, 80
−40°C to
+125°C
Adj./1A
Adj./1A
Tape and Reel,
2500
REG1117A
Tape and Reel,
50
REG1117FA/KTTT
REG1117FA/500
−40°C to
+125°C
REG1117FA
REG1117FA
Tape and Reel,
500
(1)
For the most current package and ordering information, see the Package Option Addendum located at the end of this data sheet.
3
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SBVS001D − OCTOBER 1992 − REVISED JULY 2004
ELECTRICAL CHARACTERISTICS
At T = +25°C, unless otherwise noted.
J
REG1117, REG1117A
PARAMETER
OUTPUT VOLTAGE
REG1117-2.85
See Note 1
CONDITION
MIN
TYP
MAX
UNIT
IO = 10mA, VIN = 4.85V
IO = 0 to 800mA, VIN = 4.05V to 10V
IO = 10mA, VIN = 5.3V
2.820
2.790
3.270
3.240
4.950
4.900
1.782
1.764
2.475
2.450
4.950
4.900
2.85
2.85
3.30
3.30
5.00
5.00
1.8
2.880
2.910
3.330
3.360
5.050
5.100
1.818
1.836
2.525
2.550
5.050
5.100
V
V
V
V
V
V
V
V
V
V
V
V
REG1117-3.3
See Note 1
IO = 0 to 800mA, VIN = 4.8V to 10V
IO = 10mA, VIN = 7V
REG1117-5
See Note 1
IO = 0 to 800mA, VIN = 6.5V to 10V
IO = 10mA, VIN = 3.8V
REG1117A-1.8
See Note 1
IO = 0 to 1A, VIN = 3.8V to 10V
IO = 10mA, VIN = 4.5V
1.8
REG1117A-2.5
See Note 1
2.5
IO = 0 to 1A, VIN = 4.5V to 10V
IO = 10mA, VIN = 7V
2.5
REG1117A-5
5.0
See Note 1
IO = 0 to 1A, VIN = 7V to 10V
5.0
REFERENCE VOLTAGE
REG1117 (Adjustable)
See Note 1
IO = 10mA, VIN − VO = 2V
IO = 10 to 800mA, VIN − VO = 1.4 to 10V
IO = 10mA, VIN − VO = 2V
1.238
1.225
1.238
1.225
1.250
1.250
1.250
1.250
1.262
1.280
1.262
1.280
V
V
V
V
REG1117A (Adjustable)
See Note 1
IO = 10mA to 1A, VIN − VO = 1.4 to 10V
LINE REGULATION
(1)
REG1117-2.85
(1)
REG1117-3.3
IO = 0, VIN = 4.25 to 10V
IO = 0, VIN = 4.8 to 10V
1
2
7
7
mV
mV
mV
%
(1)
REG1117-5
IO = 0, VIN = 6.5 to 15V
3
10
0.4
0.4
7
(1)
REG1117 (Adjustable)
IO = 10mA, VIN − VO = 1.5 to 13.75V
IO = 10mA, VIN − VO = 1.5 to 13.75V
IO = 0, VIN = 3.8V to 10V
0.1
0.1
1
(1)
REG1117A (Adjustable)
(1)
%
REG1117A-1.8
mV
mV
mV
(1)
REG1117A-2.5
(1)
IO = 0, VIN = 4.5V to 10V
1
7
REG1117A-5.0
LOAD REGULATION
(1)
IO = 0, VIN = 7V to 15V
3
10
REG1117-2.85
(1)
IO = 0 to 800mA, VIN = 4.25V
IO = 0 to 800mA, VIN = 4.8V
IO = 0 to 800mA, VIN = 6.5V
IO = 10 to 800mA, VIN − VO = 3V
IO = 10mA to 1A, VIN − VO = 3V
IO = 0 to 1A, VIN = 3.8V
2
3
10
12
15
0.4
0.4
10
10
15
mV
mV
mV
%
REG1117-3.3
(1)
REG1117-5
3
(1)(2)
REG1117 (Adjustable)
(1)(2)
REG1117A (Adjustable)
(1)
REG1117A-1.8
0.1
0.1
2
%
mV
mV
mV
REG1117A-2.5
IO = 0 to 1A, VIN = 4.5V
2
REG1117A-5
IO = 0 to 1A, VIN = 7.0V
3
(3)
DROPOUT VOLTAGE
(1)
All Models
IO = 100mA
IO = 500mA
IO = 800mA
IO = 1A
1.00
1.05
1.10
1.2
1.10
1.15
1.20
1.30
1.55
V
V
V
V
V
See Note 1
REG1117 Models
REG1117A
See Note 1
(1)
(1)
IO = 1A
1.2
Specification applies over the full specified junction temperature range, 0°C to +125°C.
REG1117 and REG1117A adjustable versions require a minimum load current for 3% regulation.
Dropout voltage is the input voltage minus output voltage that produces a 1% decrease in output voltage.
Percentagechange in unloaded output voltage before versus after a 30ms power pulse of I = 800mA (REG1117 models), I = 1A (REG1117A),
(2)
(3)
(4)
O
O
V
IN
− V = 1.4V (reading taken 10ms after pulse).
O
4
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SBVS001D − OCTOBER 1992 − REVISED JULY 2004
ELECTRICAL CHARACTERISTICS (continued)
At T = +25°C, unless otherwise noted.
J
REG1117, REG1117A
PARAMETER
CURRENT LIMIT
CONDITION
MIN
TYP
MAX
UNIT
REG1117 Models
VIN − VO = 5V
VIN − VO = 5V
800
950
1200
1600
mA
mA
REG1117A
1000
1250
MINIMUM LOAD CURRENT
(1)(2)
Adjustable Models
VIN − VO = 13.75V
1.7
5
mA
QUIESCENT CURRENT
(1)
Fixed-Voltage Models
VIN − VO = 5V
4
10
120
5
mA
µA
µA
µA
(1)(2)
ADJUSTABLE PIN CURRENT
IO = 10mA, VIN − VO = 1.4 to 10V
IO = 10mA to 800mA, VIN − VO = 1.4 to 10V
IO = 10mA to 1A, VIN − VO = 1.4 to 10V
50
0.5
0.5
(1)
vs Load Current, REG1117
(1)
vs Load Current, REG1117A
5
THERMAL REGULATION
(4)
All Models
30ms Pulse
0.01
62
0.1
%/W
dB
RIPPLE REJECTION
All Models
f = 120Hz, VIN − VOUT = 3V + 1V
Ripple
PP
TEMPERATURE DRIFT
Fixed-Voltage Models
Adjustable Models
LONG-TERM STABILITY
All Models
TJ = 0°C to +125°C
TJ = 0°C to +125°C
0.5
2
%
%
T
A
= 125°C, 1000Hr
0.3
%
%
OUTPUT NOISE
rms Noise, All Models
THERMAL RESISTANCE
f = 10Hz to 10kHz
0.003
Thermal Resistance, q
JC
(Junction-to-Case at Tab)
3-Lead SOT-223 Surface-Mount
15
2
°C/W
°C/W
°C/W
3-Lead DDPAK Surface-Mount
f > 50Hz
dc
3
Thermal Resistance, q
JA
3-Lead DDPAK Surface-Mount
(Junction-to-Case at Tab)
No Heatsink
65
°C/W
(1)
(2)
(3)
(4)
Specification applies over the full specified junction temperature range, 0°C to +125°C.
REG1117 and REG1117A adjustable versions require a minimum load current for 3% regulation.
Dropout voltage is the input voltage minus output voltage that produces a 1% decrease in output voltage.
Percentagechange in unloaded output voltage before versus after a 30ms power pulse of I = 800mA (REG1117 models), I = 1A (REG1117A),
O
O
V
IN
− V = 1.4V (reading taken 10ms after pulse).
O
5
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SBVS001D − OCTOBER 1992 − REVISED JULY 2004
SIMPLIFIED SCHEMATIC
VIN
+
Current
Limit
Thermal
Limit
VOUT
10X
(Substrate)
Ground (Fixed−voltage Models)
Adj. (Adjustable−voltage Model)
6
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SBVS001D − OCTOBER 1992 − REVISED JULY 2004
TYPICAL CHARACTERISTICS
At T = +25°C, all models, unless otherwise noted.
A
LOAD REGULATION
( ∆
ILOAD = 800mA)
SHORT−CIRCUIT CURRENT vs TEMPERATURE
1400
1300
1200
1100
1000
900
1
0
1
2
3
4
5
6
7
REG1117−2.85
REG1117A−1.8
REG1117A
−
−
−
−
−
−
REG1117 Models
REG1117−5
800
−
−
25
−
−
25
50
0
25
50
75
100
50
0
25
50
75
100
_
_
Temperature ( C)
Temperature ( C)
LINE REGULATION vs TEMPERATURE
RIPPLE REJECTION vs FREQUENCY
100
90
80
70
60
50
40
30
20
10
0
6
5
4
3
2
1
0
1
2
IOUT = 100mA
VRIPPLE = 1.0VPP
VIN = 6.5V to 15V
REG1117−5
REG1117A−1.8
VIN = 3.8V to 10V
−
−
−
−
25
50
0
25
50
75
100
10
100
1k
10k
100k
_
Temperature ( C)
Frequency (Hz)
QUIESCENT CURRENT vs TEMPERATURE
Fixed−Voltage Models
OUTPUT VOLTAGE vs TEMPERATURE
8
7
6
5
4
3
2
1
2.0
1.0
0
IO = 10mA
−
1.0
2.0
0
−
−
−
25
50
0
25
50
75
100
−
−
25
50
0
25
50
75
100
_
Temperature ( C)
_
Temperature ( C)
7
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SBVS001D − OCTOBER 1992 − REVISED JULY 2004
TYPICAL CHARACTERISTICS (continued)
At T = +25°C, all models, unless otherwise noted.
A
LOAD TRANSIENT RESPONSE
LINE TRANSIENT RESPONSE
= 1 F
60
40
20
0
C
µ
IN
0.1
0
COUT = 10 F Tantalum
µ
I
OUT = 0.1A
0.1
−
20
−
C
= 10 F
µ
IN
0.5
0
40
−
COUT = 10 F
Tantalum
µ
5.25
4.25
3.25
VIN = 4.25V
0.5
−
Preload = 0.1A
0
20
40
60
80
100
0
20 40 60 80 100 120 140 160 180 200
Time ( s)
Time ( s)
µ
µ
Figure 2 shows a hookup diagram for the adjustable
voltage model. Resistor values are shown for some
commonly-used output voltages. Values for other voltages
can be calculated from the equation shown in Figure 2. For
best load regulation, connect R1 close to the output pin and
R2 close to the ground side of the load as shown.
APPLICATIONS INFORMATION
Figure 1 shows the basic hookup diagram for fixed-voltage
models. All models require an output capacitor for proper
operation, and for improving high-frequency load
regulation; a 10µF tantalum capacitor is recommended.
Aluminum electrolytic types of 50µF or greater can also be
used. A high-quality capacitor should be used to assure
that the ESR (Effective Series Resistance) is less than
0.5Ω.
THERMAL CONSIDERATIONS
The REG1117 has current limit and thermal shutdown
circuits that protect it from overload. The thermal shutdown
activates at approximately TJ = 165°C. For continuous
operation, however, the junction temperature should not
be allowed to exceed 125°C. Any tendency to activate the
thermal shutdown in normal use is an indication of an
inadequate heat sink or excessive power dissipation. The
power dissipation is equal to:
VIN
VO
REG1117
µ
10 F
µ
+
+
10 F
Tantalum
Tantalum
PD = (VIN – VOUT) IOUT
The junction temperature can be calculated by:
TJ = TA + PD (qJA)
where TA is the ambient temperature, and qJA is the
junction-to-ambient thermal resistance.
Figure 1. Fixed-Voltage Model—Basic
Connections
VIN
VO
3
2
REG1117
(Adj)
VOUT
R1
R2
(
)
( )(2)
( )(2)
Ω
V
Ω
C
C1
µ
+
+
2µ
R1 + R2
R1
R1
R2
1.25
1.5
2.1
2.85
3
3.3
5
10
Open
750
158
169
137
115
113
113
Short
147
107
215
191
187
340
787
10 F
10 F
µ
VO
=
x (1.25V) + (50 A) (R2)
1
Load
(1)
C3
+
This term is negligible with
proper choice of values see
µ
10 F
−
table at right.
NOTES: (1) C3 optional. Improves high−frequency line rejection. (2) Resistors are standard 1% values.
Figure 2. Adjustable-Voltage Model—Basic Connections
8
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SBVS001D − OCTOBER 1992 − REVISED JULY 2004
A simple experiment will determine whether the maximum
recommended junction temperature is exceeded in an
actual circuit board and mounting configuration: Increase
the ambient temperature above that expected in normal
operation until the device’s thermal shutdown is activated.
If this occurs at more than 40°C above the maximum
expected ambient temperature, then TJ will be less than
125°C during normal operation.
The internal protection circuitry of the REG1117 was
designed to protect against overload conditions. It was not
intended to replace proper heat sinking. Continuously
running the REG1117 into thermal shutdown will degrade
reliability.
LAYOUT CONSIDERATIONS
The DDPAK (REG1117F-3.3 and REG1117FA) is a
surface-mount power package that has excellent thermal
characteristics. For best thermal performance, the
mounting tab should be soldered directly to a circuit board
copper area, as shown in Figure 3. Increasing the copper
area improves heat dissipation. Figure 4 shows typical
thermal resistance from junction-to-ambient as a function
of the copper area.
3−Lead DDPAK(1)
0.51
All measurements
in inches.
0.155
0.05
0.10
NOTE: (1) For improved thermal performance increase
footprint area. See Figure 4 (Thermal Resistance vs
Circuit Board Copper Area).
Figure 3. DDPAK Footprint
THERMAL RESISTANCE vs
CIRCUIT BOARD COPPER AREA
Circuit Board Copper Area
60
50
40
30
20
10
REG1117F
DDPAK Surface Mount Package
1oz copper
REG1117F
DDPAK Surface−Mount Package
0
1
2
3
4
5
Copper Area (inches2)
Figure 4. DDPAK Thermal Resistance versus Circuit Board Copper Area
9
ꢁꢠ ꢡ ꢢꢢꢢ ꢣ
ꢁꢠ ꢡ ꢢꢢꢢ ꢣꢉ
www.ti.com
SBVS001D − OCTOBER 1992 − REVISED JULY 2004
The SOT-223 package derives heat sinking from
conduction through its copper leads, especially the large
mounting tab. These must be soldered to a circuit board
with a substantial amount of copper remaining, as shown
in Figure 5. Circuit board traces connecting the tab and the
leads should be made as large as practical. The mounting
Table 1. SOT-223 q for Various Board
JA
Configurations
SOT-223
THERMAL
(1)
TOPSIDE
TOTAL PC
BOARD
AREA
BACKSIDE
COPPER
AREA
RESISTANCE
JUNCTION-
TO-AMBIENT
COPPER
AREA
tab of both packages is electrically connected to VOUT
.
2
2
2
2500mm
2500mm
2500mm
46°C/W
47°C/W
49°C/W
51°C/W
53°C/W
55°C/W
58°C/W
59°C/W
67°C/W
72°C/W
85°C/W
2
2
2
2500mm
1250mm
2500mm
Total Area: 50 x 50mm
35 x 17 mm
2
2
2
2500mm
950mm
2500mm
2
2
2500mm
2500mm
0
0
2
2
2500mm
1800mm
2
2
2
1600mm
600mm
1600mm
2
2
2500mm
1250mm
0
0
0
2
2
2500mm
915mm
16 x 10 mm
16 x 10 mm
2
2
1600mm
600mm
2
2
2
900mm
340mm
900mm
2
2
900mm
340mm
0
q
q
≈
≈
_
Without backside copper:
With solid backside copper:
59 C/W
JA
JA
_
49 C/W
(1)
Tab is attached to the topside copper.
Figure 5. SOT-223 Circuit Board Layout Example
SOLDERING METHODS
Other nearby circuit traces, including those on the back
side of the circuit board, help conduct heat away from the
device, even though they may not be electrically
connected. Make all nearby copper traces as wide as
possible and leave only narrow gaps between traces.
Both REG1117 packages are suitable for infrared reflow
and vapor-phase reflow soldering techniques. The high
rate of temperature change that occurs with wave
soldering or hand soldering can damage the REG1117.
Table 1 shows approximate values of qJA for various circuit
board and copper areas for the SOT-223 package. Nearby
heat dissipating components, circuit board mounting
conditions, and ventilation can dramatically affect the
actual qJA. Proper heat sinking significantly increases the
INSPEC Abstract Number: B91007604, C91012627.
Kelly, E.G. “Thermal Characteristics of Surface 5WK9Ω
Packages.” The Proceedings of SMTCON. Surface Mount
Technology Conference and Exposition: Competitive
Surface Mount Technology, April 3−6, 1990, Atlantic City,
NJ, USA. Abstract Publisher: IC Manage, 1990, Chicago,
IL, USA.
maximum power dissipation at
temperature, as shown in Figure 6.
a
given ambient
MAXIMUM POWER DISSIPATION
vs AMBIENT TEMPERATURE
6
5
4
3
2
1
0
_
= 27 C/W
q
q
−
PD = (TJ (max) TA) /
JA
JA
2
(4in one oz copper
mounting pad)
_
TJ (max) = 150 C
DDPAK
SOT−223
_
2
= 46 C/W
q
JA
(2500mm topside and
backside copper)
_
q
= 65 C/W
JA
(no heat sink)
_
2
= 85 C/W
q
JA
(340mm topside copper,
no backside copper)
0
25
50
75
100
125
_
Ambient Temperature ( C)
Figure 6. Maximum Power Dissipation versus Ambient Temperature
10
ꢁ ꢠꢡ ꢢꢢꢢꢣ
ꢁꢠ ꢡ ꢢꢢꢢꢣ ꢉ
www.ti.com
SBVS001D − OCTOBER 1992 − REVISED JULY 2004
TERMPWR
TERMPWR
5V
5V
Ω
Ω
2.85V
110
110
110
2.85V
1N5817
1N5817
REG1117−2.85
REG1117−2.85
µ
µ
µ
µ
10 F
10 F
10 F
10 F
(Up to 27 Lines)
Ω
110
Ω
Figure 7. SCSI Active Termination Configuration
REG1117−5
REG1117−5
In
Out
In
Out
VIN > 12V
5V to 10V
VIN > 9.0V
7.5V
+
+
+
+
GND
GND
µ
10 F
µ
µ
µ
100 F
100 F
10 F
2.5VOUT
+
µ
10 F
Ω
1k
REF1004−2.5
Figure 8. Adjusting Output of Fixed Voltage Models
Figure 9. Regulator with Reference
REG1117−5
5.2V Line
5.0V Battery
VIN
In
Out
+
GND
µ
10 F
Ω
50
Ω
1k
REG1117−5
In
Out
GND
+
+
6.5V
µ
µ
100 F
10 F
Figure 10. Battery Backed-Up Regulated Supply
REG1117−5
VIN
In
Out
+
+
GND
µ
10 F
µ
100 F
−
= 5V
VOUT
Floating Input
Figure 11. Low Dropout Negative Supply
11
PACKAGE OPTION ADDENDUM
www.ti.com
27-Sep-2005
PACKAGING INFORMATION
Orderable Device
Status (1)
Package Package
Type
Pins Package Eco Plan (2) Lead/Ball Finish MSL Peak Temp (3)
Qty
Drawing
DCY
DCY
DCY
DCY
DCY
DCY
DCY
DCY
DCY
DCY
DCY
DCY
DCY
DCY
KTT
REG1117
REG1117-2.85
REG1117-2.85/2K5
REG1117-3.3
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
SOT-223
SOT-223
SOT-223
SOT-223
SOT-223
SOT-223
SOT-223
SOT-223
SOT-223
SOT-223
SOT-223
SOT-223
SOT-223
SOT-223
4
4
4
4
4
4
4
4
4
4
4
4
4
4
3
80
80
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
CU SNPB
CU SNPB
CU SNPB
CU SNPB
CU SNPB
CU SNPB
CU SNPB
CU SNPB
CU SNPB
CU SNPB
CU SNPB
CU SNPB
CU SNPB
CU SNPB
Call TI
Level-3-220C-168 HR
Level-3-220C-168 HR
Level-3-220C-168 HR
Level-3-220C-168 HR
Level-3-220C-168 HR
Level-3-220C-168 HR
Level-3-220C-168 HR
Level-3-220C-168 HR
Level-3-220C-168 HR
Level-3-220C-168 HR
Level-3-220C-168 HR
Level-3-220C-168 HR
Level-3-220C-168 HR
Level-3-220C-168 HR
Call TI
2500
80
REG1117-3.3/2K5
REG1117-5
2500
80
REG1117-5/2K5
REG1117/2K5
REG1117A
2500
2500
80
REG1117A-1.8
REG1117A-1.8/2K5
REG1117A-2.5
REG1117A-2.5/2K5
REG1117A/2K5
REG1117F-3.3
80
2500
80
2500
2500
OBSOLETE DDPAK/
TO-263
REG1117F-3.3/500
REG1117F-3.3KTTT
REG1117FA
ACTIVE
DDPAK/
TO-263
KTT
KTT
KTT
KTT
KTT
KTT
KTT
KTT
KTT
KTT
KTT
KTT
KTT
KTT
KTT
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
500 Green (RoHS &
no Sb/Br)
CU SN
CU SN
Call TI
Call TI
CU SN
CU SN
Call TI
CU SN
CU SN
Call TI
CU SN
CU SN
CU SN
CU SN
CU SN
Level-2-260C-1 YEAR
Level-2-260C-1 YEAR
Call TI
ACTIVE
DDPAK/
TO-263
50 Green (RoHS &
no Sb/Br)
OBSOLETE DDPAK/
TO-263
TBD
REG1117FA-1.8
OBSOLETE DDPAK/
TO-263
TBD
Call TI
REG1117FA-1.8/500
REG1117FA-1.8KTTT
REG1117FA-2.5
ACTIVE
DDPAK/
TO-263
500 Green (RoHS &
no Sb/Br)
Level-2-260C-1 YEAR
Level-2-260C-1 YEAR
Call TI
ACTIVE
DDPAK/
TO-263
50 Green (RoHS &
no Sb/Br)
OBSOLETE DDPAK/
TO-263
TBD
REG1117FA-2.5/500
REG1117FA-2.5KTTT
REG1117FA-5.0
ACTIVE
DDPAK/
TO-263
500 Green (RoHS &
no Sb/Br)
Level-2-260C-1 YEAR
Level-2-260C-1 YEAR
Call TI
ACTIVE
DDPAK/
TO-263
50 Green (RoHS &
no Sb/Br)
OBSOLETE DDPAK/
TO-263
TBD
REG1117FA-5.0/500
REG1117FA-5.0KTTT
REG1117FA/500
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
DDPAK/
TO-263
500
50
TBD
TBD
Level-3-235C-168 HR
Level-3-235C-168 HR
Level-2-260C-1 YEAR
Level-2-260C-1 YEAR
Level-2-260C-1 YEAR
DDPAK/
TO-263
DDPAK/
TO-263
500 Green (RoHS &
no Sb/Br)
REG1117FA2.5KTTTG3
REG1117FAKTTT
DDPAK/
TO-263
50 Green (RoHS &
no Sb/Br)
DDPAK/
TO-263
50 Green (RoHS &
no Sb/Br)
Addendum-Page 1
PACKAGE OPTION ADDENDUM
www.ti.com
27-Sep-2005
(1) The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in
a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
Eco Plan
-
The planned eco-friendly classification: Pb-Free (RoHS) or Green (RoHS
&
no Sb/Br)
-
please check
http://www.ti.com/productcontent for the latest availability information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements
for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered
at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame
retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)
(3)
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder
temperature.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is
provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the
accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take
reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on
incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited
information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI
to Customer on an annual basis.
Addendum-Page 2
MECHANICAL DATA
MPDS094A – APRIL 2001 – REVISED JUNE 2002
DCY (R-PDSO-G4)
PLASTIC SMALL-OUTLINE
6,70 (0.264)
6,30 (0.248)
3,10 (0.122)
2,90 (0.114)
4
0,10 (0.004)
M
3,70 (0.146)
3,30 (0.130)
7,30 (0.287)
6,70 (0.264)
Gauge Plane
1
2
3
0,25 (0.010)
0,84 (0.033)
0,66 (0.026)
0°–10°
2,30 (0.091)
0,10 (0.004)
M
4,60 (0.181)
0,75 (0.030) MIN
1,70 (0.067)
1,50 (0.059)
1,80 (0.071) MAX
0,35 (0.014)
0,23 (0.009)
Seating Plane
0,08 (0.003)
0,10 (0.0040)
0,02 (0.0008)
4202506/B 06/2002
NOTES: A. All linear dimensions are in millimeters (inches).
B. This drawing is subject to change without notice.
C. Body dimensions do not include mold flash or protrusion.
D. Falls within JEDEC TO-261 Variation AA.
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enhancements, improvements, and other changes to its products and services at any time and to discontinue
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TI warrants performance of its hardware products to the specifications applicable at the time of sale in
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