LD1117
Adjustable and fixed low drop positive voltage regulator
Datasheet - production data
Description
DPAK
TO-220
SOT-223
SO-8
Features
• Low dropout voltage (1 V typ.)
• 2.85 V device performances are suitable for
SCSI-2 active termination
• Output current up to 800 mA
• Fixed output voltage of: 1.2 V, 1.8 V, 2.5 V,
3.3 V, 5.0 V
The LD1117 is a low drop voltage regulator able
to provide up to 800 mA of output current,
available even in adjustable version
(VREF = 1.25 V). Concerning fixed versions, are
offered the following output voltages: 1.2 V, 1.8 V,
2.5 V, 2.85 V, 3.3 V and 5.0 V. The device is
supplied in: SOT-223, DPAK, SO-8 and TO-220.
The SOT-223 and DPAK surface mount packages
optimize the thermal characteristics even offering
a relevant space saving effect. High efficiency is
assured by NPN pass transistor. In fact in this
case, unlike than PNP one, the quiescent current
flows mostly into the load. Only a very common
10 µF minimum capacitor is needed for stability.
On chip trimming allows the regulator to reach a
very tight output voltage tolerance, within ± 1 % at
25 °C. The adjustable LD1117 is pin to pin
compatible with the other standard. Adjustable
voltage regulators maintaining the better
performances in terms of drop and tolerance.
• Adjustable version availability (VREF = 1.25 V)
• Internal current and thermal limit
• Available in ± 1 % (at 25 °C) and 2 % in full
temperature range
• Supply voltage rejection: 75 dB (typ.)
February 2020
This is information on a product in full production.
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46
Contents
LD1117
Contents
1
Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2
Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3
Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4
Schematic application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
6
Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
7
LD1117 adjustable: application note . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
8
Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
9
Packaging mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
10
Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
11
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
2/46
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LD1117
List of tables
List of tables
Table 1.
Table 2.
Table 3.
Table 4.
Table 5.
Table 6.
Table 7.
Table 8.
Table 9.
Table 10.
Table 11.
Table 12.
Table 13.
Table 14.
Table 15.
Table 16.
Table 17.
Table 18.
Table 19.
Table 20.
Table 21.
Table 22.
Table 23.
Table 24.
Table 25.
Table 26.
Table 27.
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Electrical characteristics of LD1117#12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Electrical characteristics of LD1117#18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Electrical characteristics of LD1117#25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Electrical characteristics of LD1117#33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Electrical characteristics of LD1117#50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Electrical characteristics of LD1117 (adjustable) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Electrical characteristics of LD1117#12C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Electrical characteristics of LD1117#18C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Electrical characteristics of LD1117#25C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Electrical characteristics of LD1117#33C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Electrical characteristics of LD1117#50C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Electrical characteristics of LD1117C (adjustable) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
TO-220 mechanical data (type STD-ST Dual Gauge) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
TO-220 mechanical data (type STD-ST Single Gauge) . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
SOT-223 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
SO-8 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
DPAK (TO-252) mechanical data (type A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
DPAK (TO-252) mechanical data (type E) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
DPAK (TO-252) mechanical data type I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Footprint data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
SOT-223 tape and reel mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
SO-8 tape and reel mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
DPAK tape and reel mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
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List of figures
LD1117
List of figures
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Figure 8.
Figure 9.
Figure 10.
Figure 11.
Figure 12.
Figure 13.
Figure 14.
Figure 15.
Figure 16.
Figure 17.
Figure 18.
Figure 19.
Figure 20.
Figure 21.
Figure 22.
Figure 23.
Figure 24.
Figure 25.
Figure 26.
4/46
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Pin connections (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Application circuit (for 1.2 V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Application circuit (for other fixed output voltages) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Negative supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Circuit for increasing output voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Voltage regulator with reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Battery backed-up regulated supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Post-regulated dual supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Adjustable output voltage application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Adjustable output voltage application with improved ripple rejection . . . . . . . . . . . . . . . . . 24
Drawing dimension TO-220 (type STD-ST Dual Gauge) . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Drawing dimension TO-220 (type STD-ST Single Gauge) . . . . . . . . . . . . . . . . . . . . . . . . . 28
Drawing dimension SOT-223 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Drawing dimension SO-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
DPAK (TO-252) package outline A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
DPAK (TO-252) package outline E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
DPAK (TO-252) package outline I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
DPAK footprint recommended data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Drawing dimension tube for TO-220 Dual Gauge (mm.) . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Drawing dimension tube for TO-220 Single Gauge (mm.) . . . . . . . . . . . . . . . . . . . . . . . . . 38
Tape for SOT-223 (dimensions are in mm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Reel for SOT-223 (dimensions are in mm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
SO-8 tape and reel dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Tape for DPAK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Reel for DPAK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
DocID2572 Rev 37
LD1117
1
Diagram
Diagram
Figure 1. Block diagram
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Pin configuration
2
LD1117
Pin configuration
Figure 2. Pin connections (top view)
$'-*1'
9287
9287
9287
9287
$'-*1'
6/46
1&
9,1
9287
$'-*1'
TO-220
DPAK
Note:
SO-8
9,1
1&
9,1
SOT-223
9287
9,1
$'-*1' 9287
The TAB is connected to the VOUT.
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LD1117
3
Maximum ratings
Maximum ratings
Table 1. Absolute maximum ratings
Symbol
Parameter
Value
Unit
VIN (1)
DC input voltage
15
V
PTOT
Power dissipation
12
W
TSTG
Storage temperature range
-40 to +150
°C
TOP
Operating junction temperature range
-40 to +125
°C
0 to +125
°C
for C version
for standard version
1. Absolute maximum rating of VIN = 18 V, when IOUT is lower than 20 mA.
Table 2. Thermal data
Symbol
Parameter
SOT-223
SO-8
DPAK
TO-220
Unit
RthJC
Thermal resistance junction-case
15
20
8
5
°C/W
RthJA
Thermal resistance junction-ambient
110
55
100
50
°C/W
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Schematic application
4
LD1117
Schematic application
Figure 3. Application circuit (for 1.2 V)
Figure 4. Application circuit (for other fixed output voltages)
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LD1117
5
Electrical characteristics
Electrical characteristics
Refer to the test circuits, TJ = 0 to 125 °C, CO = 10 µF, R = 120 Ω between GND and OUT
pins, unless otherwise specified.
Table 3. Electrical characteristics of LD1117#12
Symbol
Parameter
Test condition
Min.
Typ.
Max.
Unit
VO
Output voltage
Vin = 3.2 V, IO = 10 mA, TJ = 25 °C
1.188
1.20
1.212
V
VO
Output voltage
IO = 10 to 800 mA
Vin - VO = 1.4 to 10 V
1.140
1.20
1.260
V
∆VO
Line regulation
Vin - VO = 1.5 to 13.75 V, IO = 10 mA
0.035
0.2
%
∆VO
Load regulation
Vin - VO = 3 V, IO = 10 to 800 mA
0.1
0.4
%
∆VO
Temperature stability
∆VO
Long term stability
1000 hrs, TJ = 125 °C
Vin
Operating input voltage
Iadj
Adjustment pin current
Vin ≤ 15 V
Adjustment pin current change
0.5
%
0.3
%
15
V
60
120
µA
Vin - VO = 1.4 to 10 V
IO = 10 to 800 mA
1
5
µA
Minimum load current
Vin = 15 V
2
5
mA
IO
Output current
Vin - VO = 5 V, TJ = 25 °C
950
1300
mA
eN
Output noise (%VO)
B = 10 Hz to 10 kHz, TJ = 25 °C
Supply voltage rejection
IO = 40 mA, f = 120 Hz, TJ = 25 °C
Vin - VO = 3 V, Vripple = 1 VPP
∆Iadj
IO(min)
SVR
Vd
Dropout voltage
Thermal regulation
800
60
0.003
%
75
dB
IO = 100 mA
1
1.1
IO = 500 mA
1.05
1.15
IO = 800 mA
1.10
1.2
Ta = 25 °C, 30 ms Pulse
0.01
0.1
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Electrical characteristics
LD1117
Refer to the test circuits, TJ = 0 to 125 °C, CO = 10 µF, unless otherwise specified.
Table 4. Electrical characteristics of LD1117#18
Symbol
Parameter
Test condition
Min.
Typ.
Max.
Unit
1.8
1.82
V
1.84
V
VO
Output voltage
Vin = 3.8 V, IO = 10 mA, TJ = 25 °C
1.78
VO
Output voltage
IO = 0 to 800 mA, Vin = 3.3 to 8 V
1.76
∆VO
Line regulation
Vin = 3.3 to 8 V, IO = 0 mA
1
6
mV
∆VO
Load regulation
Vin = 3.3 V, IO = 0 to 800 mA
1
10
mV
∆VO
Temperature stability
∆VO
Long term stability
1000 hrs, TJ = 125 °C
Vin
Operating input voltage
IO = 100 mA
Id
Quiescent current
Vin ≤ 8 V
IO
Output current
Vin = 6.8 V, TJ = 25 °C
eN
Output noise voltage
B = 10 Hz to 10 kHz, TJ = 25 °C
Supply voltage rejection
IO = 40 mA, f = 120 Hz, TJ = 25 °C
Vin = 5.5 V, Vripple = 1 VPP
SVR
Vd
Dropout voltage
Thermal regulation
10/46
800
60
0.5
%
0.3
%
15
V
5
10
mA
950
1300
mA
100
µV
75
dB
IO = 100 mA
1
1.1
IO = 500 mA
1.05
1.15
IO = 800 mA
1.10
1.2
Ta = 25 °C, 30 ms Pulse
0.01
0.1
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LD1117
Electrical characteristics
Refer to the test circuits, TJ = 0 to 125 °C, CO = 10 µF, unless otherwise specified.
Table 5. Electrical characteristics of LD1117#25
Symbol
Parameter
Test condition
Min.
Typ.
Max.
Unit
2.5
2.525
V
2.55
V
VO
Output voltage
Vin = 4.5 V, IO = 10 mA, TJ = 25 °C
2.475
VO
Output voltage
IO = 0 to 800 mA, Vin = 3.9 to 10 V
2.45
∆VO
Line regulation
Vin = 3.9 to 10 V, IO = 0 mA
1
6
mV
∆VO
Load regulation
Vin = 3.9 V, IO = 0 to 800 mA
1
10
mV
∆VO
Temperature stability
∆VO
Long term stability
1000 hrs, TJ = 125 °C
Vin
Operating input voltage
IO = 100 mA
Id
Quiescent current
Vin ≤ 10 V
IO
Output current
Vin = 7.5 V TJ = 25 °C
eN
Output noise voltage
B = 10 Hz to 10 kHz, TJ = 25 °C
Supply voltage rejection
IO = 40 mA, f = 120 Hz, TJ = 25 °C
Vin = 5.5 V, Vripple = 1 VPP
SVR
Vd
Dropout voltage
Thermal regulation
800
60
0.5
%
0.3
%
15
V
5
10
mA
950
1300
mA
100
µV
75
dB
IO = 100 mA
1
1.1
IO = 500 mA
1.05
1.15
IO = 800 mA
1.10
1.2
Ta = 25 °C, 30 ms Pulse
0.01
0.1
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Electrical characteristics
LD1117
Refer to the test circuits, TJ = 0 to 125 °C, CO = 10 µF, unless otherwise specified.
Table 6. Electrical characteristics of LD1117#33
Symbol
Parameter
Test condition
Min.
Typ.
Max.
Unit
3.3
3.333
V
3.365
V
VO
Output voltage
Vin = 5.3 V, IO = 10 mA, TJ = 25 °C
3.267
VO
Output voltage
IO = 0 to 800 mA, Vin = 4.75 to 10 V
3.235
∆VO
Line regulation
Vin = 4.75 to 15 V, IO = 0 mA
1
6
mV
∆VO
Load regulation
Vin = 4.75 V, IO = 0 to 800 mA
1
10
mV
∆VO
Temperature stability
∆VO
Long term stability
1000 hrs, TJ = 125 °C
Vin
Operating input voltage
IO = 100 mA
Id
Quiescent current
Vin ≤ 15 V
IO
Output current
Vin = 8.3 V, TJ = 25 °C
eN
Output noise voltage
B = 10 Hz to 10 kHz, TJ = 25 °C
Supply voltage rejection
IO = 40 mA, f = 120 Hz, TJ = 25 °C
Vin = 6.3 V, Vripple = 1 VPP
SVR
Vd
Dropout voltage
Thermal regulation
12/46
800
60
0.5
%
0.3
%
15
V
5
10
mA
950
1300
mA
100
µV
75
dB
IO = 100 mA
1
1.1
IO = 500 mA
1.05
1.15
IO = 800 mA
1.10
1.2
Ta = 25 °C, 30 ms Pulse
0.01
0.1
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LD1117
Electrical characteristics
Refer to the test circuits, TJ = 0 to 125 °C, CO = 10 µF, unless otherwise specified.
Table 7. Electrical characteristics of LD1117#50
Symbol
Parameter
Test condition
Min.
Typ.
Max.
Unit
5
5.05
V
5.1
V
VO
Output voltage
Vin = 7 V, IO = 10 mA, TJ = 25 °C
4.95
VO
Output voltage
IO = 0 to 800 mA, Vin = 6.5 to 15 V
4.9
∆VO
Line regulation
Vin = 6.5 to 15 V, IO = 0 mA
1
10
mV
∆VO
Load regulation
Vin = 6.5 V, IO = 0 to 800 mA
1
15
mV
∆VO
Temperature stability
∆VO
Long term stability
1000 hrs, TJ = 125 °C
Vin
Operating input voltage
IO = 100 mA
Id
Quiescent current
Vin ≤ 15 V
IO
Output current
Vin = 10 V, TJ = 25 °C
eN
Output noise voltage
B = 10 Hz to 10 kHz, TJ = 25 °C
Supply voltage rejection
IO = 40 mA, f = 120 Hz, TJ = 25 °C
Vin = 8 V, Vripple = 1 VPP
SVR
Vd
Dropout voltage
Thermal regulation
800
60
0.5
%
0.3
%
15
V
5
10
mA
950
1300
mA
100
µV
75
dB
IO = 100 mA
1
1.1
IO = 500 mA
1.05
1.15
IO = 800 mA
1.10
1.2
Ta = 25 °C, 30 ms Pulse
0.01
0.1
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Electrical characteristics
LD1117
Refer to the test circuits, TJ = 0 to 125 °C, CO = 10 µF, unless otherwise specified.
Table 8. Electrical characteristics of LD1117 (adjustable)
Symbol
Parameter
Test condition
Min.
Typ.
Max.
Unit
1.238
1.25
1.262
V
1.275
V
0.035
0.2
%
0.1
0.4
%
Vref
Reference voltage
Vin - VO = 2 V, IO = 10 mA, TJ = 25 °C
Vref
Reference voltage
IO = 10 to 800 mA, Vin - VO = 1.4 to 10 V 1.225
∆VO
Line regulation
Vin - VO = 1.5 to 13.75 V, IO = 10 mA
∆VO
Load regulation
Vin - VO = 3 V, IO = 10 to 800 mA
∆VO
Temperature stability
∆VO
Long term stability
Vin
Operating input voltage
Iadj
Adjustment pin current
1000 hrs, TJ = 125 °C
0.5
%
0.3
%
15
V
60
120
µA
Adjustment pin current change Vin - VO = 1.4 to 10 V, IO = 10 to 800 mA
1
5
µA
Minimum load current
Vin = 15 V
2
5
mA
IO
Output current
Vin - VO = 5 V, TJ = 25 °C
950
1300
mA
eN
Output noise (%VO)
B = 10 Hz to 10 kHz, TJ = 25 °C
Supply voltage rejection
IO = 40 mA, f = 120 Hz, TJ = 25 °C
Vin - VO = 3 V, Vripple = 1 VPP
∆Iadj
IO(min)
SVR
Vd
Dropout voltage
Thermal regulation
14/46
Vin ≤ 15 V
800
60
0.003
%
75
dB
IO = 100 mA
1
1.1
IO = 500 mA
1.05
1.15
IO = 800 mA
1.10
1.2
Ta = 25 °C, 30 ms Pulse
0.01
0.1
DocID2572 Rev 37
V
%/W
LD1117
Electrical characteristics
Refer to the test circuits, TJ = -40 to 125 °C, CO = 10 µF, R = 120 Ω between GND and OUT
pins, unless otherwise specified.
Table 9. Electrical characteristics of LD1117#12C
Symbol
Parameter
Test condition
Min.
Typ.
Max.
Unit
VO
Output voltage
Vin - VO = 2 V, IO = 10 mA, TJ = 25 °C
1.176
1.20
1.224
V
VO
Output voltage
IO = 10 to 800 mA, Vin - VO = 1.4 to 10 V
1.120
1.20
1.280
V
∆VO
Line regulation
Vin - VO = 1.5 to 13.75 V, IO = 10 mA
1
%
∆VO
Load regulation
Vin - VO = 3 V, IO = 10 to 800 mA
1
%
∆VO
Temperature stability
∆VO
Long term stability
1000 hrs, TJ = 125 °C
Vin
Operating input voltage
Iadj
Adjustment pin current
Vin ≤ 15 V
∆Iadj
Adjustment pin current
change
IO(min)
0.5
%
0.3
%
15
V
60
120
µA
Vin - VO = 1.4 to 10 V
IO = 10 to 800 mA
1
5
µA
Minimum load current
Vin = 15 V
2
5
mA
IO
Output current
Vin - VO = 5 V, TJ = 25 °C
950
1300
mA
eN
Output noise (%VO)
B = 10 Hz to 10 kHz, TJ = 25 °C
Supply voltage rejection
IO = 40 mA, f = 120 Hz, TJ = 25 °C
Vin - VO = 3 V, Vripple = 1 VPP
SVR
Vd
Dropout voltage
Thermal regulation
800
60
0.003
%
75
dB
IO = 100 mA, TJ = 0 to 125 °C
1
1.1
IO = 500 mA, TJ = 0 to 125 °C
1.05
1.2
IO = 800 mA, TJ = 0 to 125 °C
1.10
1.3
Ta = 25 °C, 30 ms Pulse
0.01
0.1
DocID2572 Rev 37
V
%/W
15/46
Electrical characteristics
LD1117
Refer to the test circuits, TJ = -40 to 125 °C, CO = 10 µF, unless otherwise specified.
Table 10. Electrical characteristics of LD1117#18C
Symbol
Parameter
Test condition
Min.
Typ.
Max.
Unit
1.8
1.84
V
1.87
V
VO
Output voltage
Vin = 3.8 V, IO = 10 mA, TJ = 25 °C
1.76
VO
Output voltage
IO = 0 to 800 mA, Vin = 3.9 to 10 V
1.73
∆VO
Line regulation
Vin = 3.3 to 8 V, IO = 0 mA
1
30
mV
∆VO
Load regulation
Vin = 3.3 V, IO = 0 to 800 mA
1
30
mV
∆VO
Temperature stability
∆VO
Long term stability
1000 hrs, TJ = 125 °C
Vin
Operating input voltage
IO = 100 mA
Id
Quiescent current
Vin ≤ 8 V
IO
Output current
Vin = 6.8 V TJ = 25 °C
eN
Output noise voltage
B = 10 Hz to 10 kHz, TJ = 25 °C
Supply voltage rejection
IO = 40 mA, f = 120 Hz, TJ = 25 °C
Vin = 5.5 V, Vripple = 1 VPP
SVR
Vd
Vd
Dropout voltage
Dropout voltage
Thermal regulation
16/46
800
60
0.5
%
0.3
%
15
V
5
10
mA
950
1300
mA
100
µV
75
dB
IO = 100 mA, TJ = 0 to 125 °C
1
1.1
IO = 500 mA, TJ = 0 to 125 °C
1.05
1.15
IO = 800 mA, TJ = 0 to 125 °C
1.10
1.2
IO = 100 mA
1.1
IO = 500 mA
1.2
IO = 800 mA
1.3
Ta = 25 °C, 30 ms Pulse
DocID2572 Rev 37
0.01
0.1
V
V
%/W
LD1117
Electrical characteristics
Refer to the test circuits, TJ = -40 to 125 °C, CO = 10 µF, unless otherwise specified.
Table 11. Electrical characteristics of LD1117#25C
Symbol
Parameter
Test condition
Min.
Typ.
Max.
Unit
2.5
2.55
V
2.6
V
VO
Output voltage
Vin = 4.5 V, IO = 10 mA, TJ = 25 °C
2.45
VO
Output voltage
IO = 0 to 800 mA, Vin = 3.9 to 10 V
2.4
∆VO
Line regulation
Vin = 3.9 to 10 V, IO = 0 mA
1
30
mV
∆VO
Load regulation
Vin = 3.9 V, IO = 0 to 800 mA
1
30
mV
∆VO
Temperature stability
∆VO
Long term stability
1000 hrs, TJ = 125 °C
Vin
Operating input voltage
IO = 100 mA
Id
Quiescent current
Vin ≤ 10 V
IO
Output current
Vin = 7.5 V TJ = 25 °C
eN
Output noise voltage
B = 10 Hz to 10 kHz, TJ = 25 °C
Supply voltage rejection
IO = 40 mA, f = 120 Hz, TJ = 25 °C
Vin = 5.5 V, Vripple = 1 VPP
SVR
Vd
Vd
Dropout voltage
Dropout voltage
Thermal regulation
800
60
0.5
%
0.3
%
15
V
5
10
mA
950
1300
mA
100
µV
75
dB
IO = 100 mA, TJ = 0 to 125 °C
1
1.1
IO = 500 mA, TJ = 0 to 125 °C
1.05
1.15
IO = 800 mA, TJ = 0 to 125 °C
1.10
1.2
IO = 100 mA
1.1
IO = 500 mA
1.2
IO = 800 mA
1.3
Ta = 25 °C, 30 ms Pulse
DocID2572 Rev 37
0.01
0.1
V
V
%/W
17/46
Electrical characteristics
LD1117
Refer to the test circuits, TJ = -40 to 125 °C, CO = 10 µF, unless otherwise specified.
Table 12. Electrical characteristics of LD1117#33C
Symbol
Parameter
Test condition
Min.
Typ.
Max.
Unit
3.3
3.36
V
3.44
V
VO
Output voltage
Vin = 5.3 V, IO = 10 mA, TJ = 25 °C
3.24
VO
Output voltage
IO = 0 to 800 mA, Vin = 4.75 to 10 V
3.16
∆VO
Line regulation
Vin = 4.75 to 15 V, IO = 0 mA
1
30
mV
∆VO
Load regulation
Vin = 4.75 V, IO = 0 to 800 mA
1
30
mV
∆VO
Temperature stability
∆VO
Long term stability
1000 hrs, TJ = 125 °C
Vin
Operating input voltage
IO = 100 mA
Id
Quiescent current
Vin ≤ 15 V
IO
Output current
Vin = 8.3 V, TJ = 25 °C
eN
Output noise voltage
B = 10 Hz to 10 kHz, TJ = 25 °C
Supply voltage rejection
IO = 40 mA, f = 120 Hz, TJ = 25 °C
Vin = 6.3 V, Vripple = 1 VPP
SVR
Vd
Vd
Dropout voltage
Dropout voltage
Thermal regulation
18/46
800
60
0.5
%
0.3
%
15
V
5
10
mA
950
1300
mA
100
µV
75
dB
IO = 100 mA, TJ = 0 to 125 °C
1
1.1
IO = 500 mA, TJ = 0 to 125 °C
1.05
1.15
IO = 800 mA, TJ = 0 to 125 °C
1.10
1.2
IO = 100 mA
1.1
IO = 500 mA
1.2
IO = 800 mA
1.3
Ta = 25 °C, 30 ms Pulse
DocID2572 Rev 37
0.01
0.1
V
V
%/W
LD1117
Electrical characteristics
Refer to the test circuits, TJ = -40 to 125 °C, CO = 10 µF, unless otherwise specified.
Table 13. Electrical characteristics of LD1117#50C
Symbol
Parameter
Test condition
Min.
Typ.
Max.
Unit
5
5.1
V
5.2
V
VO
Output voltage
Vin = 7 V, IO = 10 mA, TJ = 25 °C
4.9
VO
Output voltage
IO = 0 to 800 mA, Vin = 6.5 to 15 V
4.8
∆VO
Line regulation
Vin = 6.5 to 15 V, IO = 0 mA
1
50
mV
∆VO
Load regulation
Vin = 6.5 V, IO = 0 to 800 mA
1
50
mV
∆VO
Temperature stability
∆VO
Long term stability
1000 hrs, TJ = 125 °C
Vin
Operating input voltage
IO = 100 mA
Id
Quiescent current
Vin ≤ 15 V
IO
Output current
Vin = 10 V, TJ = 25 °C
eN
Output noise voltage
B = 10 Hz to 10 kHz, TJ = 25 °C
Supply voltage rejection
IO = 40 mA, f = 120 Hz, TJ = 25 °C
Vin = 8 V, Vripple = 1 VPP
SVR
Vd
Vd
Dropout voltage
Dropout voltage
Thermal regulation
800
60
0.5
%
0.3
%
15
V
5
10
mA
950
1300
mA
100
µV
75
dB
IO = 100 mA, TJ = 0 to 125 °C
1
1.1
IO = 500 mA, TJ = 0 to 125 °C
1.05
1.15
IO = 800 mA, TJ = 0 to 125 °C
1.10
1.2
IO = 100 mA
1.1
IO = 500 mA
1.2
IO = 800 mA
1.3
Ta = 25 °C, 30 ms Pulse
DocID2572 Rev 37
0.01
0.1
V
V
%/W
19/46
Electrical characteristics
LD1117
Refer to the test circuits, TJ = -40 to 125 °C, CO = 10 µF, unless otherwise specified.
Table 14. Electrical characteristics of LD1117C (adjustable)
Symbol
Parameter
Test condition
Min.
Typ.
Max.
Unit
1.225
1.25
1.275
V
1.3
V
Vref
Reference voltage
Vin - VO = 2 V, IO = 10 mA, TJ = 25 °C
Vref
Reference voltage
IO = 10 to 800 mA, Vin - VO= 1.4 to 10 V
∆VO
Line regulation
Vin - VO = 1.5 to 13.75 V, IO = 10 mA
1
%
∆VO
Load regulation
Vin - VO = 3 V, IO = 10 to 800 mA
1
%
∆VO
Temperature stability
∆VO
Long term stability
Vin
Operating input voltage
Iadj
Adjustment pin current
1.2
1000 hrs, TJ = 125 °C
0.5
%
0.3
%
15
V
60
120
µA
Adjustment pin current change Vin - VO = 1.4 to 10 V, IO = 10 to 800 mA
1
10
µA
Minimum load current
Vin = 15 V
2
5
mA
IO
Output current
Vin - VO = 5 V, TJ = 25 °C
950
1300
mA
eN
Output noise (%VO)
B = 10 Hz to 10 kHz, TJ = 25 °C
Supply voltage rejection
IO = 40 mA, f = 120 Hz, TJ = 25 °C
Vin - VO = 3 V, Vripple = 1 VPP
∆Iadj
IO(min)
SVR
Vd
Vd
Dropout voltage
Dropout voltage
Thermal regulation
20/46
Vin ≤ 15 V
800
60
0.003
%
75
dB
IO = 100 mA, TJ = 0 to 125 °C
1
1.1
IO = 500 mA, TJ = 0 to 125 °C
1.05
1.15
IO = 800 mA, TJ = 0 to 125 °C
1.10
1.2
IO = 100 mA
1.1
IO = 500 mA
1.2
IO = 800 mA
1.3
Ta = 25 °C, 30 ms Pulse
DocID2572 Rev 37
0.01
0.1
V
V
%/W
LD1117
6
Typical application
Typical application
Figure 5. Negative supply
Figure 6. Circuit for increasing output voltage
Figure 7. Voltage regulator with reference
DocID2572 Rev 37
21/46
Typical application
LD1117
Figure 8. Battery backed-up regulated supply
22/46
DocID2572 Rev 37
LD1117
Typical application
Figure 9. Post-regulated dual supply
DocID2572 Rev 37
23/46
LD1117 adjustable: application note
7
LD1117
LD1117 adjustable: application note
The LD1117 adjustable has a thermal stabilized 1.25 ± 0.012 V reference voltage between
the OUT and ADJ pins. IADJ is 60 µA typ. (120 µA max.) and ∆IADJ is 1 µA typ. (5 µA max.).
R1 is normally fixed to 120 Ω. From Figure 9 we obtain:
VOUT = VREF + R2 (IADJ +IR1) = VREF + R2 (IADJ +VREF /R1) = VREF (1 + R2 / R1) + R2 x IADJ.
In normal application R2 value is in the range of few kΩ, so the R2 x IADJ product could not
be considered in the VOUT calculation; then the above expression becomes:
VOUT = VREF (1 + R2 / R1).
In order to have the better load regulation it is important to realize a good Kelvin connection
of R1 and R2 resistors. In particular R1 connection must be realized very close to OUT and
ADJ pin, while R2 ground connection must be placed as near as possible to the negative
Load pin. Ripple rejection can be improved by introducing a 10 µF electrolytic capacitor
placed in parallel to the R2 resistor (see Figure 10).
Figure 10. Adjustable output voltage application
Figure 11. Adjustable output voltage application with improved ripple rejection
24/46
DocID2572 Rev 37
LD1117
8
Package information
Package information
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK packages, depending on their level of environmental compliance. ECOPACK
specifications, grade definitions and product status are available at: www.st.com.
ECOPACK is an ST trademark.
Table 15. TO-220 mechanical data (type STD-ST Dual Gauge)
mm
Dim.
Min.
Typ.
Max.
A
4.40
4.60
b
0.61
0.88
b1
1.14
1.70
c
0.48
0.70
D
15.25
15.75
D1
1.27
E
10
10.40
e
2.40
2.70
e1
4.95
5.15
F
1.23
1.32
H1
6.20
6.60
J1
2.40
2.72
L
13
14
L1
3.50
3.93
L20
16.40
L30
28.90
∅P
3.75
3.85
Q
2.65
2.95
DocID2572 Rev 37
25/46
Package information
LD1117
Figure 12. Drawing dimension TO-220 (type STD-ST Dual Gauge)
BW\SH$B5HYB7
26/46
DocID2572 Rev 37
LD1117
Package information
Table 16. TO-220 mechanical data (type STD-ST Single Gauge)
mm
Dim.
Min.
Typ.
Max.
A
4.40
4.60
b
0.61
0.88
b1
1.14
1.70
c
0.48
0.70
D
15.25
15.75
E
10
10.40
e
2.40
2.70
e1
4.95
5.15
F
0.51
0.60
H1
6.20
6.60
J1
2.40
2.72
L
13
14
L1
3.50
3.93
L20
16.40
L30
28.90
∅P
3.75
3.85
Q
2.65
2.95
DocID2572 Rev 37
27/46
Package information
LD1117
Figure 13. Drawing dimension TO-220 (type STD-ST Single Gauge)
BUHY'
28/46
DocID2572 Rev 37
LD1117
Package information
Table 17. SOT-223 mechanical data
mm
Dim.
Min.
Typ.
A
Max.
1.80
A1
0.02
0.10
B
0.60
0.70
0.85
B1
2.90
3.00
3.15
c
0.24
0.26
0.35
D
6.30
6.50
6.70
e
2.30
e1
4.60
E
3.30
3.50
3.70
H
6.70
7.00
7.30
V
10°
Figure 14. Drawing dimension SOT-223
DocID2572 Rev 37
29/46
Package information
LD1117
Table 18. SO-8 mechanical data
mm
Dim.
Min.
Typ.
A
Max.
1.75
A1
0.10
0.25
A2
1.25
b
0.28
0.48
c
0.17
0.23
D
4.80
4.90
5.00
E
5.80
6.00
6.20
E1
3.80
3.90
4.00
e
1.27
h
0.25
0.50
L
0.40
1.27
L1
k
1.04
0°
8°
ccc
0.10
Figure 15. Drawing dimension SO-8
0016023_Rev_G
30/46
DocID2572 Rev 37
LD1117
Package information
Table 19. DPAK (TO-252) mechanical data (type A)
mm
Dim.
Min.
Typ.
Max.
A
2.20
2.40
A1
0.90
1.10
A2
0.03
0.23
b
0.64
0.90
b4
5.20
5.40
c
0.45
0.60
c2
0.48
0.60
D
6.00
6.20
D1
4.95
E
6.40
E1
4.60
4.70
4.80
e
2.159
2.286
2.143
e1
4.445
4.572
4.699
H
9.35
10.10
L
1.00
1.50
L1
2.60
5.10
6.60
2.80
L2
L4
1.50
3.00
0.60
R
V2
5.25
1.00
0.20
0°
DocID2572 Rev 37
8°
31/46
Package information
LD1117
Figure 16. DPAK (TO-252) package outline A
32/46
DocID2572 Rev 37
LD1117
Package information
Table 20. DPAK (TO-252) mechanical data (type E)
mm
Dim.
Min.
A
Typ.
2.18
Max.
2.39
A2
0.13
b
0.65
0.884
b4
4.95
5.46
c
0.46
0.61
c2
0.46
0.60
D
5.97
6.22
D1
5.21
E
6.35
E1
4.32
6.73
e
2.286
e1
4.572
H
9.94
10.34
L
1.50
1.78
L1
L2
2.74
0.89
L4
1.27
1.02
DocID2572 Rev 37
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Package information
LD1117
Figure 17. DPAK (TO-252) package outline E
34/46
DocID2572 Rev 37
LD1117
Package information
Table 21. DPAK (TO-252) mechanical data type I
mm
Dim.
Min.
Typ.
Max.
A
2.20
2.30
2.38
A1
0.90
1.01
1.10
A2
0.00
-
0.10
b
0.77
-
0.89
b1
0.76
0.81
0.86
b2
0.77
-
1.10
b3
5.23
5.33
5.43
c
0.47
-
0.60
c1
0.46
0.51
0.56
c2
0.47
-
0.60
D
6.00
6.10
6.20
D1
5.25
5.40
5.60
E
6.50
6.60
6.70
E1
4.70
4.85
5.00
e
2.286 BSC
H
9.80
10.10
10.40
L
1.40
1.50
1.70
L1
L2
2.90 REF
0.90
L3
-
1.25
0.51 BSC
L4
0.60
0.80
1.00
L5
0.90
-
1.50
L6
1.80 BSC
Θ
0°
-
8°
Θ1
3°
5°
7°
Θ2
1°
3°
5°
DocID2572 Rev 37
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Package information
LD1117
Figure 18. DPAK (TO-252) package outline I
36/46
DocID2572 Rev 37
LD1117
Package information
Table 22. Footprint data
Values
mm.
inch.
A
6.70
0.264
B
6.70
0.64
C
1.8
0.070
D
3.0
0.118
E
1.60
0.063
F
2.30
0.091
G
2.30
0.091
Figure 19. DPAK footprint recommended data
DocID2572 Rev 37
37/46
Packaging mechanical data
9
LD1117
Packaging mechanical data
Figure 20. Drawing dimension tube for TO-220 Dual Gauge (mm.)
Figure 21. Drawing dimension tube for TO-220 Single Gauge (mm.)
38/46
DocID2572 Rev 37
LD1117
Packaging mechanical data
Table 23. SOT-223 tape and reel mechanical data
Tape
Reel
mm
mm
Dim.
Dim.
Min.
Typ.
Max.
Min.
Max.
A0
6.75
6.85
6.95
A
B0
7.30
7.40
7.50
N
K0
1.80
1.90
2.00
W1
12.4
F
5.40
5.50
5.60
W2
18.4
E
1.65
1.75
1.85
W3
W
11.7
12
12.3
P2
1.90
2
2.10
Base quantity pcs
1000
P0
3.90
4
4.10
Bulk quantity pcs
1000
P1
7.90
8
8.10
T
0.25
0.30
0.35
Dφ
1.50
1.55
1.60
D1φ
1.50
1.60
1.70
180
60
11.9
15.4
Figure 22. Tape for SOT-223 (dimensions are in mm)
*Cumulative tolerance of 10 sprocket holes is ±0.20 mm
DocID2572 Rev 37
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Packaging mechanical data
LD1117
Figure 23. Reel for SOT-223 (dimensions are in mm)
40/46
DocID2572 Rev 37
LD1117
Packaging mechanical data
Table 24. SO-8 tape and reel mechanical data
mm
Dim.
Min.
Typ.
A
Max.
330
C
12.8
D
20.2
N
60
13.2
T
22.4
Ao
8.1
8.5
Bo
5.5
5.9
Ko
2.1
2.3
Po
3.9
4.1
P
7.9
8.1
Figure 24. SO-8 tape and reel dimensions
DocID2572 Rev 37
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Packaging mechanical data
LD1117
Table 25. DPAK tape and reel mechanical data
Tape
Reel
mm
mm
Dim.
Dim.
Min.
Max.
A0
6.8
7
A
B0
10.4
10.6
B
1.5
12.1
C
12.8
1.6
D
20.2
G
16.4
50
B1
42/46
Min.
Max.
330
13.2
D
1.5
D1
1.5
E
1.65
1.85
N
F
7.4
7.6
T
K0
2.55
2.75
P0
3.9
4.1
Base qty.
2500
P1
7.9
8.1
Bulk qty.
2500
P2
1.9
2.1
R
40
T
0.25
0.35
W
15.7
16.3
DocID2572 Rev 37
18.4
22.4
LD1117
Packaging mechanical data
Figure 25. Tape for DPAK
10 pitches cumulative
tolerance on tape +/- 0.2 mm
T
P0
Top cover
tape
P2
D
E
F
B1
W
K0
B0
For machine ref. only
including draft and
radii concentric around B0
A0
P1
D1
User direction of feed
R
Bending radius
User direction of feed
AM08852v1
Figure 26. Reel for DPAK
T
REEL DIMENSIONS
40mm min.
Access hole
At sl ot location
B
D
C
N
A
Full radius
Tape slot
in core for
tape start 25 mm min.
width
G measured at hub
AM08851v2
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Order codes
10
LD1117
Order codes
Table 26. Order codes
Packages
SOT-223
SO-8
DPAK
(Tape and reel)
TO-220
TO-220
(Dual Gauge)
Output
voltages
LD1117S12TR
LD1117DT12TR
1.2 V
LD1117S12CTR
LD1117DT12CTR
1.2 V
LD1117S18TR
LD1117DT18TR
LD1117S18CTR
LD1117DT18CTR
1.8 V
LD1117S25TR
LD1117DT25TR
2.5 V
LD1117S25CTR
LD1117DT25CTR
2.5 V
LD1117S33TR
LD1117S33CTR
LD1117S50TR
LD1117D33TR
LD1117D33CTR
LD1117DT33TR
LD1117V18
LD1117V33
LD1117DT33CTR
LD1117V33C
LD1117DT50TR
LD1117V50
1.8 V
LD1117V33-DG
3.3 V
LD1117V33C-DG
3.3 V
3.3 V
LD1117V50-DG
5V
5V
LD1117S50CTR
LD1117DT50CTR
LD1117V50C
LD1117STR
LD1117DTTR
LD1117V
5V
LD1117V-DG
ADJ from
1.25 to 15 V
ADJ from
1.25 to 15 V
LD1117SC-R
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LD1117DTC-R
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ADJ from
1.25 to 15 V
LD1117
11
Revision history
Revision history
Table 27. Document revision history
Date
Revision
Changes
22-Sep-2004
15
Add new part number #12C; typing error: note on table 2.
25-Oct-2004
16
Add Vref reference voltage on table 12.
18-Jul-2005
17
The DPAK mechanical data updated.
25-Nov-2005
18
The TO220FM package removed.
14-Dec-2005
19
The Top on table 2 updated.
06-Dec-2006
20
DPAK mechanical data updated and added footprint data.
05-Apr-2007
21
Order codes updated.
30-Nov-2007
22
Added Table 1.
16-Apr-2008
23
Modified: Table 24 on page 42.
08-Jul-2008
24
Added note 1. on page 7.
30-Mar-2009
25
Modified: VIN max value Table 4 on page 10 and Figure 9 on page 23
29-Jul-2009
26
Modified: Table 24 on page 42.
03-Feb-2010
27
Modified Table 9 on page 15.
22-Mar-2010
28
Added: Table 16 on page 22, Figure 13 on page 23, Figure 14 on page 24,
Figure 17 and Figure 18 on page 33
15-Nov-2010
29
Modified: RthJC value for TO-220 Table 2 on page 7.
30-Nov-2011
30
Added: order code LD1117V33-DG Table 24 on page 42.
13-Feb-2012
31
Added: order codes LD1117V50-DG and LD1117V-DG Table 24 on page 42.
19-Oct-2012
32
Added: RthJA value for DPAK, SOT-223 and SO-8 Table 2 on page 7.
20-Nov-2013
33
Part number LD1117xx changed to LD1117.
Updated the Description in cover page, Section 8: Package mechanical data
and Table 24: Order codes.
Cancelled Table 1: Device summary.
Added Section 9: Packaging mechanical data.
Minor text changes.
12-Jun-2019
34
Updated Table 19, Table 20, Figure 16, Figure 17 and Figure 18.
16-Oct-2019
35
Updated Figure 2: Pin connections (top view).
04-Dec-2019
36
Added Table 20: DPAK (TO-252) mechanical data (type E).
Updated pin 3 DPAK package in Figure 2: Pin connections (top view).
11-Feb-2020
37
Updated Figure 14: Drawing dimension SOT-223.
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LD1117
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