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Электронный компонент: REG1117-3.3

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FEATURES
D
FIXED AND ADJUSTABLE VERSIONS
D
2.85V MODEL FOR SCSI-2 ACTIVE
TERMINATION
D
OUTPUT CURRENT:
REG1117: 800mA max
REG1117A: 1A max
D
OUTPUT TOLERANCE:
+
1% max
D
DROPOUT VOLTAGE:
REG1117: 1.2V max at I
O
= 800mA
REG1117A: 1.3V max at I
O
= 1A
D
INTERNAL CURRENT LIMIT
D
THERMAL OVERLOAD PROTECTION
D
SOT-223 AND DDPAK SURFACE-MOUNT
PACKAGES
APPLICATIONS
D
SCSI-2 ACTIVE TERMINATION
D
HAND-HELD DATA COLLECTION DEVICES
D
HIGH EFFICIENCY LINEAR REGULATORS
D
BATTERY-POWERED INSTRUMENTATION
D
BATTERY MANAGEMENT CIRCUITS FOR
NOTEBOOK AND PALMTOP PCs
D
CORE VOLTAGE SUPPLY: FPGA, PLD, DSP,
CPU
DESCRIPTION
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.
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.
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.
800mA
1A
VOLTAGE
SOT-223
DDPAK
SOT-223
DDPAK
1.8V
n
n
2.5V
n
n
2.85V
n
3.3V
n
n
5V
n
n
Adjustable
n
n
n
PRODUCTION DATA information is current as of publication date. Products
conform to specifications per the terms of Texas Instruments standard warranty.
Production processing does not necessarily include testing of all parameters.
All trademarks are the property of their respective owners.
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
www.ti.com
Copyright
1992-2004, Texas Instruments Incorporated
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.
REG1117
REG1117A
SBVS001D - OCTOBER 1992 - REVISED JULY 2004
www.ti.com
2
ABSOLUTE MAXIMUM RATINGS
(1)
Power Dissipation
Internally Limited
. . . . . . . . . . . . . . . . . . . . . . . . . .
Input Voltage
+15V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Junction Temperature Range
-40
C to +125
C
. . . . . . . .
Storage Temperature Range
-65
C to +150
C
. . . . . . . . . . . . . . . . .
Lead Temperature (soldering, 10s)(2)
+300
C
. . . . . . . . . . . . . . . . .
(1) Stresses above these ratings may cause permanent damage.
(2) See Soldering Methods section.
This integrated circuit can be damaged by ESD. Texas
Instruments recommends that all integrated circuits be
handled with appropriate precautions. Failure to observe
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.
CONNECTION DIAGRAM
Front View
Plastic SOT-223
Plastic DDPAK
Tab is V
OUT
V
IN
V
OUT
Ground
(Adj.)
(1)
Tab is
V
OUT
V
IN
V
OUT
Ground
(Adj.)
(1)
NOTE: (1) Adjustable-Voltage Model.
REG1117
REG1117A
SBVS001D - OCTOBER 1992 - REVISED JULY 2004
www.ti.com
3
PACKAGE/ORDERING INFORMATION
(1)
PRODUCT
V
O
/I
O
PACKAGE-LEAD
PACKAGE
DESIGNATOR
OPERATING
TEMPERATURE
RANGE
PACKAGE
MARKING
ORDERING
NUMBER
TRANSPORT
MEDIA,
QUANTITY
-40
C to
REG1117-2.85
Rails, 80
REG1117-2.85
2.85/800mA
SOT223-3
DCY
-40
C to
+125
C
BB11172
REG1117-2.85
Tape and Reel,
2500
-40
C to
REG1117-3.3
Rails, 80
REG1117-3.3
3.3/800mA
SOT223-3
DCY
-40
C to
+125
C
BB11174
REG1117-3.3
Tape and Reel,
2500
REG1117F-3.3
3.3/800mA
DDPAK-3
KTT
-40
C to
BB1117F4
REG1117F-3.3KTTT
Tape and Reel,
50
REG1117F-3.3
3.3/800mA
DDPAK-3
KTT
-40 C to
+125
C
BB1117F4
REG1117F-3.3/500
Tape and Reel,
500
-40
C to
REG1117-5
Rails, 80
REG1117-5
5V/800mA
SOT223-3
DCY
-40
C to
+125
C
BB11175
REG1117-5
Tape and Reel,
2500
-40
C to
REG1117
Rails, 80
REG1117
Adj./800mA
SOT223-3
DCY
-40
C to
+125
C
BB1117
REG1117
Tape and Reel,
2500
-40
C to
REG1117A-1.8
Rails, 80
REG1117A-1.8
1.8V/1A
SOT223-3
DCY
-40
C to
+125
C
R111718
REG1117A-1.8
Tape and Reel,
2500
REG1117FA-1.8
1.8/1A
DDPAK-3
KTT
-40
C to
REG1117FA1.8
REG1117FA-1.8KTTT
Tape and Reel,
50
REG1117FA-1.8
1.8/1A
DDPAK-3
KTT
-40 C to
+125
C
REG1117FA1.8
REG1117FA-1.8/500
Tape and Reel,
500
-40
C to
REG1117A-2.5
Rails, 80
REG1117A-2.5
2.5/1A
SOT223-3
DCY
-40
C to
+125
C
R111725
REG1117A-2.5
Tape and Reel,
2500
REG1117FA-2.5
2.5/1A
DDPAK-3
KTT
-40
C to
REG1117FA2.5
REG1117FA-2.5KTTT
Tape and Reel,
50
REG1117FA-2.5
2.5/1A
DDPAK-3
KTT
-40 C to
+125
C
REG1117FA2.5
REG1117FA-2.5/500
Tape and Reel,
500
REG1117FA-5
5/1A
DDPAK-3
KTT
-40
C to
BB1117FA5.0
REG1117FA-5/KTTT
Tape and Reel,
50
REG1117FA-5
5/1A
DDPAK-3
KTT
-40 C to
+125
C
BB1117FA5.0
REG1117FA-5/500
Tape and Reel,
500
-40
C to
REG1117A
Rails, 80
REG1117A
Adj./1A
SOT223-3
DCY
-40
C to
+125
C
BB1117A
REG1117A
Tape and Reel,
2500
REG1117FA
Adj./1A
DDPAK-3
KTT
-40
C to
REG1117FA
REG1117FA/KTTT
Tape and Reel,
50
REG1117FA
Adj./1A
DDPAK-3
KTT
-40 C to
+125
C
REG1117FA
REG1117FA/500
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.
REG1117
REG1117A
SBVS001D - OCTOBER 1992 - REVISED JULY 2004
www.ti.com
4
ELECTRICAL CHARACTERISTICS
At T
J
= +25
C, unless otherwise noted.
REG1117, REG1117A
PARAMETER
CONDITION
MIN
TYP
MAX
UNIT
OUTPUT VOLTAGE
REG1117-2.85
I
O
= 10mA, V
IN
= 4.85V
2.820
2.85
2.880
V
See Note 1
I
O
= 0 to 800mA, V
IN
= 4.05V to 10V
2.790
2.85
2.910
V
REG1117-3.3
I
O
= 10mA, V
IN
= 5.3V
3.270
3.30
3.330
V
See Note 1
I
O
= 0 to 800mA, V
IN
= 4.8V to 10V
3.240
3.30
3.360
V
REG1117-5
I
O
= 10mA, V
IN
= 7V
4.950
5.00
5.050
V
See Note 1
I
O
= 0 to 800mA, V
IN
= 6.5V to 10V
4.900
5.00
5.100
V
REG1117A-1.8
I
O
= 10mA, V
IN
= 3.8V
1.782
1.8
1.818
V
See Note 1
I
O
= 0 to 1A, V
IN
= 3.8V to 10V
1.764
1.8
1.836
V
REG1117A-2.5
I
O
= 10mA, V
IN
= 4.5V
2.475
2.5
2.525
V
See Note 1
I
O
= 0 to 1A, V
IN
= 4.5V to 10V
2.450
2.5
2.550
V
REG1117A-5
I
O
= 10mA, V
IN
= 7V
4.950
5.0
5.050
V
See Note 1
I
O
= 0 to 1A, V
IN
= 7V to 10V
4.900
5.0
5.100
V
REFERENCE VOLTAGE
REG1117 (Adjustable)
I
O
= 10mA, V
IN
- V
O
= 2V
1.238
1.250
1.262
V
See Note 1
I
O
= 10 to 800mA, V
IN
- V
O
= 1.4 to 10V
1.225
1.250
1.280
V
REG1117A (Adjustable)
I
O
= 10mA, V
IN
- V
O
= 2V
1.238
1.250
1.262
V
See Note 1
I
O
= 10mA to 1A, V
IN
- V
O
= 1.4 to 10V
1.225
1.250
1.280
V
LINE REGULATION
REG1117-2.85(1)
I
O
= 0, V
IN
= 4.25 to 10V
1
7
mV
REG1117-3.3(1)
I
O
= 0, V
IN
= 4.8 to 10V
2
7
mV
REG1117-5(1)
I
O
= 0, V
IN
= 6.5 to 15V
3
10
mV
REG1117 (Adjustable)(1)
I
O
= 10mA, V
IN
- V
O
=
1.5 to 13.75V
0.1
0.4
%
REG1117A (Adjustable)(1)
I
O
= 10mA, V
IN
- V
O
=
1.5 to 13.75V
0.1
0.4
%
REG1117A-1.8(1)
I
O
= 0, V
IN
= 3.8V to 10V
1
7
mV
REG1117A-2.5(1)
I
O
= 0, V
IN
= 4.5V to 10V
1
7
mV
REG1117A-5.0(1)
I
O
= 0, V
IN
= 7V to 15V
3
10
mV
LOAD REGULATION
REG1117-2.85(1)
I
O
= 0 to 800mA, V
IN
= 4.25V
2
10
mV
REG1117-3.3(1)
I
O
= 0 to 800mA, V
IN
= 4.8V
3
12
mV
REG1117-5(1)
I
O
= 0 to 800mA, V
IN
= 6.5V
3
15
mV
REG1117 (Adjustable)(1)(2)
I
O
= 10 to 800mA, V
IN
- V
O
= 3V
0.1
0.4
%
REG1117A (Adjustable)(1)(2)
I
O
= 10mA to 1A, V
IN
- V
O
=
3V
0.1
0.4
%
REG1117A-1.8(1)
I
O
= 0 to 1A, V
IN
= 3.8V
2
10
mV
REG1117A-2.5
I
O
= 0 to 1A, V
IN
= 4.5V
2
10
mV
REG1117A-5
I
O
= 0 to 1A, V
IN
= 7.0V
3
15
mV
DROPOUT VOLTAGE(3)
All Models(1)
I
O
= 100mA
1.00
1.10
V
See Note 1
I
O
= 500mA
1.05
1.15
V
REG1117 Models(1)
I
O
= 800mA
1.10
1.20
V
REG1117A
I
O
= 1A
1.2
1.30
V
See Note 1
I
O
= 1A
1.2
1.55
V
(1) Specification applies over the full specified junction temperature range, 0
C to +125
C.
(2) REG1117 and REG1117A adjustable versions require a minimum load current for
3% regulation.
(3) Dropout voltage is the input voltage minus output voltage that produces a 1% decrease in output voltage.
(4) Percentage change in unloaded output voltage before versus after a 30ms power pulse of IO = 800mA (REG1117 models), IO = 1A (REG1117A),
VIN - VO = 1.4V (reading taken 10ms after pulse).
REG1117
REG1117A
SBVS001D - OCTOBER 1992 - REVISED JULY 2004
www.ti.com
5
ELECTRICAL CHARACTERISTICS (continued)
At T
J
= +25
C, unless otherwise noted.
REG1117, REG1117A
PARAMETER
UNIT
MAX
TYP
MIN
CONDITION
CURRENT LIMIT
REG1117 Models
V
IN
- V
O
= 5V
800
950
1200
mA
REG1117A
V
IN
- V
O
= 5V
1000
1250
1600
mA
MINIMUM LOAD CURRENT
Adjustable Models(1)(2)
V
IN
- V
O
= 13.75V
1.7
5
mA
QUIESCENT CURRENT
Fixed-Voltage Models(1)
V
IN
- V
O
= 5V
4
10
mA
ADJUSTABLE PIN CURRENT(1)(2)
I
O
= 10mA, V
IN
- V
O
= 1.4 to 10V
50
120
A
vs Load Current, REG1117(1)
I
O
= 10mA to 800mA, V
IN
- V
O
= 1.4 to 10V
0.5
5
A
vs Load Current, REG1117A(1)
I
O
= 10mA to 1A, V
IN
- V
O
= 1.4 to 10V
0.5
5
A
THERMAL REGULATION
All Models(4)
30ms Pulse
0.01
0.1
%/W
RIPPLE REJECTION
All Models
f = 120Hz, V
IN
- V
OUT
= 3V + 1VPP Ripple
62
dB
TEMPERATURE DRIFT
Fixed-Voltage Models
T
J
= 0
C to +125
C
0.5
%
Adjustable Models
T
J
= 0
C to +125
C
2
%
LONG-TERM STABILITY
All Models
TA = 125
C, 1000Hr
0.3
%
OUTPUT NOISE
rms Noise, All Models
f = 10Hz to 10kHz
0.003
%
THERMAL RESISTANCE
Thermal Resistance,
q
JC
(Junction-to-Case at Tab)
3-Lead SOT-223 Surface-Mount
15
C/W
3-Lead DDPAK Surface-Mount
f > 50Hz
2
C/W
dc
3
C/W
Thermal Resistance,
q
JA
(Junction-to-Case at Tab)
3-Lead DDPAK Surface-Mount
No Heatsink
65
C/W
(1) Specification applies over the full specified junction temperature range, 0
C to +125
C.
(2) REG1117 and REG1117A adjustable versions require a minimum load current for
3% regulation.
(3) Dropout voltage is the input voltage minus output voltage that produces a 1% decrease in output voltage.
(4) Percentage change in unloaded output voltage before versus after a 30ms power pulse of IO = 800mA (REG1117 models), IO = 1A (REG1117A),
VIN - VO = 1.4V (reading taken 10ms after pulse).