LM117H MD8 [TI]
军用级 1.5A 可调节输出线性稳压器/LDO | Y | 0 | -55 to 125;
| 型号： | LM117H MD8 |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | 军用级 1.5A 可调节输出线性稳压器/LDO | Y | 0 | -55 to 125 稳压器 |
| 文件： | 总30页 (文件大小：975K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LM117QML
LM117QML 3-Terminal Adjustable Regulator
Literature Number: SNVS356C
September 6, 2011
LM117QML
3-Terminal Adjustable Regulator
supplies of several hundred volts can be regulated as long as
the maximum input to output differential is not exceeded, i.e.,
avoid short-circuiting the output.
General Description
The LM117 series of adjustable 3-terminal positive voltage
regulators is capable of supplying either 0.5A or 1.5A over a
1.2V to 37V output range. They are exceptionally easy to use
and require only two external resistors to set the output volt-
age. Further, both line and load regulation are better than
standard fixed regulators.
Also, it makes an especially simple adjustable switching reg-
ulator, a programmable output regulator, or by connecting a
fixed resistor between the adjustment pin and output, the
LM117 can be used as a precision current regulator. Supplies
with electronic shutdown can be achieved by clamping the
adjustment terminal to ground which programs the output to
1.2V where most loads draw little current.
In addition to higher performance than fixed regulators, the
LM117 series offers full overload protection available only in
IC's. Included on the chip are current limit, thermal overload
protection and safe area protection. All overload protection
circuitry remains fully functional even if the adjustment termi-
nal is disconnected.
For the negative complement, see LM137 series data sheet.
Features
Available with Radiation Guarantee
■
Normally, no capacitors are needed unless the device is sit-
uated more than 6 inches from the input filter capacitors in
which case an input bypass is needed. An optional output ca-
pacitor can be added to improve transient response. The
adjustment terminal can be bypassed to achieve very high
ripple rejection ratios which are difficult to achieve with stan-
dard 3-terminal regulators.
High Dose Rate
100 krad(Si)
100 krad(Si)
—
—
ELDRS Free
Guaranteed max. 0.3% load regulation (LM117)
Guaranteed 0.5A or 1.5A output current
Adjustable output down to 1.2V
■
■
■
■
■
■
Current limit constant with temperature
80 dB ripple rejection
Besides replacing fixed regulators, the LM117 is useful in a
wide variety of other applications. Since the regulator is “float-
ing” and sees only the input-to-output differential voltage,
Output is short-circuit protected
Ordering Information
NS Part Number
LM117E/883
SMD Part Number
NS Package Number
Package Description
E20A
H03A
20LD LCC
LM117H/883
3LD T0–39 Metal Can
LM117HRQMLV
(Note 12)
5962R9951703VXA
100 krad(Si)
H03A
3LD T0–39 Metal Can
LM117HRLQMLV (Note 13)
ELDRS Free
5962R9951705VXA
100 krad(Si)
H03A
K02C
K02C
3LD T0–39 Metal Can
2LD T0–3 Metal Can
2LD T0–3 Metal Can
LM117K/883
LM117KRQMLV
(Note 12)
5962R9951704VYA
100 krad(Si)
LM117WGRQMLV
(Note 12)
5962R9951703VZA
100 krad(Si)
WG16A
WG16A
WG16A
WG16A
(Note 1)
(Note 1)
16LD Ceramic SOIC
16LD Ceramic SOIC
16LD Ceramic SOIC
16LD Ceramic SOIC
Bare Die
LM117WGRLQMLV (Note 13)
ELDRS Free
5962R9951705VZA
100 krad(Si)
LM117GWRQMLV
(Note 12)
5962R9951706VZA
100 krad(Si)
LM117GWRLQMLV (Note 13)
ELDRS Free
5962R9951707VZA
100 krad(Si)
LM117H MDE (Note 13)
ELDRS Free
5962R9951705V9A
100 krad(Si)
LM117H MDR
(Note 12)
5962R9951703V9A
100 krad(Si)
Bare Die
LM117H MD8
(Note 1)
(Note 1)
Bare Die
Bare Die
LM117KG MD8
Note 1: FOR ADDITIONAL DIE INFORMATION, PLEASE VISIT THE HI REL WEB SITE AT: www.national.com/analog/space/level_die
© 2011 National Semiconductor Corporation
201436
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Connection Diagrams
(TO-3)
Metal Can Package
(TO-39)
Metal Can Package
20143631
CASE IS OUTPUT
Bottom View
NS Package Number H03A
20143630
CASE IS OUTPUT
Bottom View
Steel Package
NS Package Number K02C
Ceramic SOIC
Chip Carrier
Ceramic Leadless
Chip Carrier
20143634
Top View
NS Package Number E20A
20143667
Top View
NS Package Number WG16A
(Note 5)
LM117 Series Packages
Part
Number
Suffix
K
Design
Package
Load
Current
1.5A
TO-3
T0–39
H
0.5A
WG, GW
E
Ceramic SOIC
LCC
0.5A
0.5A
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2
Schematic Diagram
3
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Absolute Maximum Ratings (Note 2)
Power Dissipation (Note 3)
Input-Output Voltage Differential
Storage Temperature
Internally Limited
+40V, −0.3V
−65°C ≤ TA ≤ +150°C
+150°C
Maximum Junction Temperature (TJmax
Lead Temperature Metal Package
Thermal Resistance
ꢀꢀθJA
300°C
T0–3 Still Air
T0–3 500LF/Min Air flow
T0–39 Still Air
T0–39 500LF/Min Air flow
Ceramic SOIC Still Air “WG”
Ceramic SOIC 500LF/Min Air flow “WG”
Ceramic SOIC Still Air “GW”
Ceramic SOIC 500LF/Min Air flow “GW”
LCC Still Air
39°C/W
14°C/W
186°C/W
64°C/W
115°C/W
66°C/W
130°C/W
80°C/W
88°C/W
62°C/W
LCC 500LF/Min Air flow
ꢀꢀθJC
T0–3
T0–39 Metal Can
Ceramic SOIC “WG”(Note 6)
Ceramic SOIC “GW”
LCC
1.9°C/W
21°C/W
3.4°C/W
7°C/W
12°C/W
Package Weight
T0–39 Metal Can
SOIC “WG”
SOIC “GW”
ESD Tolerance (Note 4)
960mg
365mg
410mg
3KV
Recommended Operating Conditions
Operating Temperature Range
Input Voltage Range
−55°C ≤ TA ≤ +125°C
4.25V to 41.25V
Quality Conformance Inspection
MIL-STD-883, Method 5005 - Group A
Subgroup
Description
Temp (°C)
1
2
Static tests at
Static tests at
+25
+125
-55
3
Static tests at
4
Dynamic tests at
Dynamic tests at
Dynamic tests at
Functional tests at
Functional tests at
Functional tests at
Switching tests at
Switching tests at
Switching tests at
Settling time at
Settling time at
Settling time at
+25
+125
-55
5
6
7
+25
+125
-55
8A
8B
9
+25
+125
-55
10
11
12
13
14
+25
+125
-55
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4
5
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LM117H & WG Electrical Characteristics
DC Parameters
The following conditions apply, unless otherwise specified. VDiff = (VI − VO), IL = 8mA
Sub-
groups
Symbol
Parameter
Conditions
Notes
Min Max
Unit
VDiff = 3V
100
100
100
5.0
µA
µA
µA
mA
mA
mA
V
1
2, 3
1, 2, 3
1
IAdj
VDiff = 3.3V
VDiff = 40V
Adjustment Pin Current
VDiff = 3V, VO = 1.7V
VDiff = 3.3V, VO = 1.7V
VDiff = 40V, VO = 1.7V
VDiff = 3V
IQ
Minimum Load Current
Reference Voltage
5.0
2, 3
1, 2, 3
1
5.0
1.2
1.2
1.2
1.3
1.3
1.3
VRef
VDiff = 3.3V
V
2, 3
1, 2, 3
VDiff = 40V
V
3V ≤ VDiff ≤ 40V,
VO = 1.2V
-8.9
8.9
mV
1
VRLine
Line Regulation
Load Regulation
3.3V ≤ VDiff ≤ 40V,
-22.2 22.2
mV
mV
mV
mV
mV
µA
2, 3
1
VO = 1.2V
VDiff= 3V,
-15
-15
15
15
IL = 10mA to 500mA
VDiff= 3.3V,
2, 3
1
IL = 10mA to 500mA
VRLoad
VDiff= 40V,
-15
15
IL = 10mA to 150mA
VDiff= 40V,
-15
15
2, 3
1
IL = 10mA to 100mA
VDiff = 3V,
-5.0
-5.0
-5.0
-5.0
5.0
5.0
5.0
5.0
IL = 10mA to 500mA
VDiff = 3.3V,
µA
2, 3
1
IL = 10mA to 500mA
ΔIAdj / Load Adjustment Current Change
ΔIAdj / Line Adjustment Current Change
VDiff = 40V,
µA
IL = 10mA to 150mA
VDiff = 40V,
µA
2, 3
IL = 10mA to 100mA
-5.0
-5.0
5.0
5.0
µA
µA
1
3V ≤ VDiff ≤ 40V
3.3V ≤ VDiff ≤ 40V
2, 3
IOS
Short Circuit Current
Thermal Regulation
VDiff = 10V
0.45
-6.0
1.6
6.0
A
1
1
TA = 25°C, t = 20mS, VDiff = 40V,
IL = 150mA
mV
θR
(Note 7)
(Note 7)
0.5
A
A
1, 2, 3
1
VDiff ≤ 15V
VDiff = 40V
ICL
Current Limit
0.15
AC Parameters
Sub-
groups
Symbol
Parameter
Conditions
Notes
Min Max
Unit
VI = +6.25V, VO = VRef
,
ƒ= 120Hz, eI = 1VRMS
IL = 125mA
,
RR
Ripple Rejection
(Note 8)
66
dB
4, 5, 6
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6
LM117K Electrical Characteristics
DC Parameters
The following conditions apply, unless otherwise specified. VDiff = (VI − VO), IL = 10mA
Sub-
groups
Symbol
Parameter
Conditions
Notes
Min Max
Unit
VDiff = 3V
100
100
100
5.0
µA
µA
µA
mA
mA
mA
V
1
2, 3
1, 2, 3
1
IAdj
VDiff = 3.3V
VDiff = 40V
Adjustment Pin Current
VDiff = 3V, VO = 1.7V
VDiff = 3.3V, VO = 1.7V
VDiff = 40V, VO = 1.7V
VDiff = 3V
IQ
5.0
2, 3
1, 2, 3
1
Minimum Load Current
Reference Voltage
5.0
1.2
1.2
1.2
1.3
1.3
1.3
VRef
VDiff = 3.3V
V
2, 3
1, 2, 3
VDiff = 40V
V
3V ≤ VDiff ≤ 40V,
VO = 1.2V
-8.9
8.9
mV
1
VRLine
Line Regulation
Load Regulation
3.3V ≤ VDiff ≤ 40V,
-22.2 22.2
mV
mV
mV
mV
mV
µA
2, 3
1
VO = 1.2V
VDiff= 3V,
-15
-15
15
15
IL = 10mA to 1.5A
VDiff= 3.3V,
2, 3
1
IL = 10mA to 1.5A
VRLoad
VDiff= 40V,
-15
15
IL = 10mA to 300mA
VDiff= 40V,
-15
15
2, 3
1
IL = 10mA to 195mA
VDiff = 3V,
-5.0
-5.0
-5.0
-5.0
5.0
5.0
5.0
5.0
IL = 10mA to 1.5A
VDiff = 3.3V,
µA
2, 3
1
IL = 10mA to 1.5A
ΔIAdj / Load Adjustment Current Change
ΔIAdj / Line Adjustment Current Change
VDiff = 40V,
µA
IL = 10mA to 300mA
VDiff = 40V,
µA
2, 3
IL = 10mA to 195mA
-5.0
-5.0
1.6
5.0
5.0
3.4
µA
µA
A
1
2, 3
1
3V ≤ VDiff ≤ 40V
3.3V ≤ VDiff ≤ 40V
IOS
VDiff = 10V
Short Circuit Current
Thermal Regulation
TA = 25°C, t = 20mS,
VDiff = 40V, IL = 300mA
θR
-10.5 10.5
mV
1
(Note 7)
(Note 7)
1.5
0.3
A
A
1, 2, 3
1
VDiff ≤ 15V
VDiff = 40V
ICL
Current Limit
AC Parameters
Sub-
groups
Symbol
Parameter
Conditions
Notes
Min Max
Unit
VI = +6.25V, VO = VRef
,
ƒ= 120Hz, eI = 1VRMS
IL = 0.5A
,
RR
Ripple Rejection
(Note 8)
66
dB
4, 5, 6
7
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LM117E Electrical Characteristics
DC Parameters
The following conditions apply, unless otherwise specified. VDiff = (VI − VO), IL = 8mA, PD ≤ 1.5W
Sub-
groups
Symbol
Parameter
Conditions
Notes
Min Max
Unit
VDiff = 3V
100
100
100
5.0
µA
µA
µA
mA
mA
mA
V
1
2, 3
1, 2, 3
1
IAdj
VDiff = 3.3V
VDiff = 40V
Adjustment Pin Current
VDiff = 3V, VO = 1.7V
VDiff = 3.3V, VO = 1.7V
VDiff = 40V, VO = 1.7V
VDiff = 3V
IQ
5.0
2, 3
1, 2, 3
1
Minimum Load Current
Reference Voltage
5.0
1.2
1.2
1.2
1.3
1.3
1.3
VRef
VDiff = 3.3V
V
2, 3
1, 2, 3
VDiff = 40V
V
3V ≤ VDiff ≤ 40V,
VO = 1.2V
-8.9
8.9
mV
1
VRLine
Line Regulation
3.3V ≤ VDiff ≤ 40V,
VO = 1.2V
-22.2 22.2
mV
mV
mV
2, 3
1
VDiff= 3V,
-15
-15
15
15
IL = 10mA to 100mA
VDiff= 3.3V,
2, 3
IL = 10mA to 100mA
VDiff= 40V,
-15
15
25
mV
mV
1,2
3
VRLoad
Load Regulation
IL = 10mA to 100mA
−25
VDiff= 3V,
-15
-15
15
15
mV
mV
µA
µA
µA
1
2, 3
1
IL = 10mA to 500mA
VDiff= 3.3V,
IL = 10mA to 500mA
VDiff = 3V,
-5.0
-5.0
-5.0
5.0
5.0
5.0
IL = 10mA to 500mA
VDiff = 3.3V,
ΔIAdj / Load Adjustment Current Change
ΔIAdj / Line Adjustment Current Change
2, 3
1, 2, 3
IL = 10mA to 500mA
VDiff = 40V,
IL = 10mA to 100mA
-5.0
-5.0
0.45
5.0
5.0
1.6
µA
µA
A
1
2, 3
1
3V ≤ VDiff ≤ 40V
3.3V ≤ VDiff ≤ 40V
IOS
Short Circuit Current
Thermal Regulation
VDiff = 10V
TA = 25°C, t = 20mS,
VDiff = 40V, IL = 75mA
θR
-6.0
6.0
mV
1
(Note 7)
(Note 7)
0.5
A
A
1, 2, 3
1
VDiff ≤ 15V
VDiff = 40V
ICL
Current Limit
0.15
AC Parameters
Sub-
groups
Symbol
Parameter
Conditions
Notes
Min Max
Unit
VI = +6.25V, VO = VRef
ƒ= 120Hz, eI = 1VRMS
IL = 100mA, CAdj = 10µf
,
,
RR
Ripple Rejection
(Note 8)
66
dB
4, 5, 6
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8
LM117H & WG RH Electrical Characteristics
DC Parameters (Note 12, Note 13)
Symbol
Parameter
Conditions
Notes
Min Max
Unit
Sub-
groups
VI = 4.25V, IL = -5mA
VI = 4.25V, IL = -500mA
VI = 41.25V, IL = -5mA
VI = 41.25V, IL = -50mA
1.2
1.2
1.2
1.2
-9.0
-23
1.3
1.3
1.3
1.3
9.0
23
V
V
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1
VO
Output Voltage
Line Regulation
Load Regulation
V
V
mV
mV
4.25V ≤ VI ≤ 41.25V,
IL = -5mA
VRLine
2,3
VI = 6.25V,
-12
12
mV
mV
1, 2, 3
1, 2, 3
-500mA ≤ IL ≤ -5mA
VI = 41.25V,
VRLoad
-12
-12
12
12
-50mA ≤ IL ≤ -5mA
VI = 14.6V, IL = -500mA
VI = 4.25V, IL = -5mA
VI = 41.25V, IL = -5mA
VRTh
IAdj
mV
µA
µA
1
Thermal Regulation
Adjust Pin Current
-100 -15
-100 -15
1, 2, 3
1, 2, 3
4.25V ≤ VI ≤ 41.25V,
ΔIAdj/ Line Adjust Pin Current Change
ΔIAdj / Load Adjust Pin Current Change
-5.0
-5.0
5.0
5.0
µA
1, 2, 3
IL = -5mA
VI = 6.25V,
µA
mA
mA
mA
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
-500mA ≤ IL ≤ -5mA
VI = 4.25V,
-3.0 -0.5
-3.0 -0.5
-5.0 -1.0
Forced VO = 1.4V
VI = 14.25V,
IQ
Minimum Load Current
Forced VO = 1.4V
VI = 41.25V,
Forced VO = 1.4V
VI = 4.25V
VI = 40V
-1.8 -0.5
-0.5 -0.05
A
A
1, 2, 3
1, 2, 3
IOS
Output Short Circuit Current
Output Voltage Recovery
VI = 4.25V, RL = 2.5Ω,
CL = 20µF
1.2
1.3
V
1, 2, 3
VO (Recov)
VI = 40V, RL = 250Ω
1.2
1.2
1.3
1.3
V
V
1, 2, 3
2
VO
Output Voltage
VI = 6.25V, IL = -5mA
(Note 9)
VI = 4.25V, RL = 2.5Ω,
CL = 20µF, IL = -500mA
VStart
Voltage Start-Up
1.2
1.3
V
1, 2, 3
AC Parameters (Note 12, Note 13)
Symbol
Parameter
Conditions
Notes
Min Max
Unit
Sub -
groups
VNO
Output Noise Voltage
VI = 6.25V, IL = -50mA
120
6.0
µVRMS
mV/V
7
VI = 6.25V, ΔVI = 3V,
IL = -10mA
ΔVO / ΔVI
Line Transient Response
7
VI = 6.25V, ΔIL = -200mA,
IL = -50mA
ΔVO / ΔIL
ΔVI / ΔVO
Load Transient Response
Ripple Rejection
0.6
mV/mA
dB
7
4
VI = 6.25V, IL = -125mA,
EI = 1VRMS at ƒ = 2400Hz
65
9
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DC Drift Parameters
The following conditions apply, unless otherwise specified.
Deltas performed on QMLV devices at Group B, Subgroup 5, only.
Symbol
Parameter
Conditions
Notes
Min Max
Unit
Sub-
groups
VI = 4.25V, IL = -5mA
VI = 4.25V, IL = -500mA
VI = 41.25V, IL = -5mA
VI = 41.25V, IL = -50mA
-0.01 0.01
-0.01 0.01
-0.01 0.01
-0.01 0.01
V
V
V
V
1
1
1
1
VO
Output Voltage
4.25V ≤ VI ≤ 41.25V,
VRLine
IAdj
Line Regulation
-4.0
4.0
mV
1
IL = -5mA
Adjust Pin Current
VI = 4.25V, IL = -5mA
VI = 41.25V, IL = -5mA
-10
-10
10
10
µA
µA
1
1
VI = 4.25V, RL = 2.5Ω,
CL = 20µf
-0.01 0.01
-0.01 0.01
V
V
1
1
VO (Recov)
Output Voltage Recovery
VI = 40V, RL = 250Ω
AC/DC Post Radiation Limits @ +25°C (Note 12, Note 13)
Symbol
Parameter
Conditions
Notes
Min Max
Unit
Sub-
groups
VI = 4.25V, IL = -5mA
VI = 4.25V, IL = -500mA
VI = 41.25V, IL = -5mA
VI = 41.25V, IL = -50mA
1.2 1.350
1.2 1.350
1.2 1.350
1.2 1.350
V
V
V
V
1
1
1
1
VO
Output Voltage
4.25V ≤ VI ≤ 41.25V,
VRLine
Line Regulation
Ripple Rejection
-25
60
25
mV
dB
1
4
IL = -5mA
VI = 6.25V, IL = -125mA
EI = 1VRMS at f = 2400Hz
ΔVI / ΔVO
VI = 4.25V, RL = 2.5Ω,
CL = 20µf
1.20 1.350
1.20 1.350
V
V
1
1
VO (Recov)
Output Voltage Recovery
VI = 40V, RL = 250Ω
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10
LM117K RH Electrical Characteristics
DC Parameters (Note 12)
Symbol
Parameter
Conditions
Notes
Min Max
Unit
Sub-
groups
VI = 4.25V, IL = -5mA
VI = 4.25V, IL = -1.5A
VI = 41.25V, IL = -5mA
VI = 41.25V, IL = -200mA
1.2
1.2
1.2
1.2
-9.0
-23
1.3
1.3
1.3
1.3
9.0
23
V
V
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1
VO
Output Voltage
Line Regulation
Load Regulation
V
V
mV
mV
4.25V ≤ VI ≤ 41.25V,
IL = -5mA
VRLine
2,3
VI = 6.25V,
-3.5
-12
3.5
12
mV
mV
1
2, 3
-1.5A ≤ IL ≤ -5mA
VI = 41.25V,
VRLoad
-3.5
-12
3.5
12
mV
mV
1
2, 3
-200mA ≤ IL ≤ -5mA
VI = 14.6V, IL = -1.5A
VI = 4.25V, IL = -5mA
VI = 41.25V, IL = -5mA
VRTh
IAdj
Thermal Regulation
Adjust Pin Current
-12
12
mV
µA
µA
1
-100 -15
-100 -15
1, 2, 3
1, 2, 3
4.25V ≤ VI ≤ 41.25V,
ΔIAdj/ Line Adjust Pin Current Change
ΔIAdj / Load Adjust Pin Current Change
-5.0
-5.0
5.0
5.0
µA
1, 2, 3
IL = -5mA
VI = 6.25V,
µA
mA
mA
mA
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
-1.5A ≤ IL ≤ -5mA
VI = 4.25V,
-3.0 -0.2
-3.0 -0.2
-5.0 -0.2
Forced VO = 1.4V
VI = 14.25V,
IQ
Minimum Load Current
Forced VO = 1.4V
VI = 41.25V,
Forced VO = 1.4V
VI = 4.25V
VI = 40V
-3.5 -1.5
-1.0 -0.18
A
A
1, 2, 3
1, 2, 3
IOS
Output Short Circuit Current
Output Voltage Recovery
VI = 4.25V, RL = 0.833Ω,
CL = 20µF
1.2
1.3
V
1, 2, 3
VO (Recov)
VI = 40V, RL = 250Ω
1.2
1.2
1.3
1.3
V
V
1, 2, 3
2
VO
Output Voltage
VI = 6.25V, IL = -5mA
(Note 9)
VI = 4.25V, RL = 0.833Ω,
CL = 20µF, IL = -1.5A
VStart
Voltage Start-Up
1.2
1.3
V
1, 2, 3
AC Parameters (Note 12)
Symbol
Parameter
Conditions
Notes
Min Max
Unit
Sub-
groups
VNO
VI = 6.25V, IL = -100mA
120
18
µVRMS
mV
7
Output Noise Voltage
VI = 6.25V, ΔVI = 3V,
IL = -10mA
ΔVO / ΔVI
Line Transient Response
(Note 10)
(Note 11)
7
VI = 6.25V, ΔIL = -400mA,
IL = -100mA
ΔVO / ΔIL
ΔVI / ΔVO
Load Transient Response
Ripple Rejection
120
mV
dB
7
4
VI = 6.25V, IL = -500mA,
EI = 1VRMS at ƒ = 2400Hz
65
11
www.national.com
DC Drift Parameters
The following conditions apply, unless otherwise specified.
Deltas performed on QMLV devices at Group B, Subgroup 5, only.
Symbol
Parameter
Conditions
Notes
Min Max
Unit
Sub-
groups
VI = 4.25V, IL = -5mA
VI = 4.25V, IL = -1.5A
VI = 41.25V, IL = -5mA
VI = 41.25V, IL = -200mA
-0.01 0.01
-0.01 0.01
-0.01 0.01
-0.01 0.01
V
V
V
V
1
1
1
1
VO
Output Voltage
4.25V ≤ VI ≤ 41.25V,
IL = -5mA
VRLine
Line Regulation
-4.0
4.0
mV
1
VI = 4.25V, IL = -5mA
VI = 41.25V, IL = -5mA
-10
-10
10
10
µA
µA
1
1
IAdj
Adjust Pin Current
VI = 4.25V, RL = 0.833Ω,
CL = 20µS
-0.01 0.01
-0.01 0.01
V
V
1
1
VO (Recov)
Output Voltage Recovery
VI = 40V, RL = 250Ω
AC/DC Post Radiation Limits @ +25°C (Note 12)
Symbol
Parameter
Conditions
Notes
Min Max
Unit
Sub-
groups
VI = 4.25V, IL = -5mA
VI = 4.25V, IL = -1.5A
VI = 41.25V, IL = -5mA
VI = 41.25V, IL = -200mA
1.2 1.350
1.2 1.350
1.2 1.350
1.2 1.350
V
V
V
V
1
1
1
1
VO
Output Voltage
Line Regulation
Load Regulation
4.25V ≤ VI ≤ 41.25V,
IL = -5mA
VRLine
-25
-7.0
-7.0
60
25
7.0
7.0
mV
mV
mV
dB
1
1
1
4
VI = 6.25V,
-1.5A ≤ IL ≤ -5mA
VI = 41.25V,
VRLoad
-200mA ≤ IL ≤ -5mA
VI = 6.25V, IL = -500mA
ΔVI / ΔVO
Ripple Rejection
EI = 1VRMS at f = 2400Hz
VI = 4.25V, RL = 0.833Ω,
CL = 20µS
1.20 1.350
1.20 1.350
V
V
1
1
VO (Recov)
Output Voltage Recovery
VI = 40V, RL = 250Ω
www.national.com
12
Note 2: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics. The guaranteed
specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed test
conditions.
Note 3: The maximum power dissipation must be derated at elevated temperatures and is dictated by TJmax (maximum junction temperature), θJA (package
junction to ambient thermal resistance), and TA (ambient temperature). The maximum allowable power dissipation at any temperature is PDmax = (TJmax - TA)/
θ
JA or the number given in the Absolute Maximum Ratings, whichever is lower. "Although power dissipation is internally limited, these specifications are applicable
for power dissipations of 2W for the TO39, LCC, and ceramic SOIC packages, and 20W for the TO3 package."
Note 4: Human body model, 100 pF discharged through a 1.5 kΩ resistor.
Note 5: For the Ceramic SOIC device to function properly, the “Output” and “Output/Sense” pins must be connected on the users printed circuit board.
Note 6: The package material for these devices allows much improved heat transfer over our standard ceramic packages. In order to take full advantage of this
improved heat transfer, heat sinking must be provided between the package base (directly beneath the die), and either metal traces on, or thermal vias through,
the printed circuit board. Without this additional heat sinking, device power dissipation must be calculated using θJA, rather than θJC, thermal resistance. It must
not be assumed that the device leads will provide substantial heat transfer out the package, since the thermal resistance of the leadframe material is very poor,
relative to the material of the package base. The stated θJC thermal resistance is for the package material only, and does not account for the additional thermal
resistance between the package base and the printed circuit board. The user must determine the value of the additional thermal resistance and must combine
this with the stated value for the package, to calculate the total allowed power dissipation for the device.
Note 7: Guaranteed parameter, not tested.
Note 8: Tested @ 25°C; guaranteed, but not tested @ 125°C & −55°C
Note 9: Tested @ TA = 125°C, correlated to TA = 150°C
Note 10: SMD limit of 6mV/V is equivalent to 18mV
Note 11: SMD limit of 0.3mV/V is equivalent to 120mV
Note 12: Pre and post irradiation limits are identical to those listed under AC and DC electrical characteristics except as listed in the “Post Radiation Limits” table.
These parts may be dose rate sensitive in a space environment and demonstrate enhanced low dose rate effect. Radiation end point limits for the noted parameters
are guaranteed only for the conditions as specified in Mil-Std-883, Method 1019.5, Condition A.
Note 13: Low dose rate testing has been performed on a wafer-by-wafer basis, per test method 1019 condition D of MIL-STD-883, with no enhanced low dose
rate sensitivity (ELDRS) effect.
Typical Performance Characteristics Output Capacitor = 0μF unless otherwise noted
Load Regulation
Current Limit
20143637
20143638
13
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Adjustment Current
Dropout Voltage
20143640
20143639
20143641
20143643
Temperature Stability
Minimum Operating Current
20143642
Ripple Rejection
Ripple Rejection
20143644
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14
Ripple Rejection
Output Impedance
20143646
20143645
Line Transient Response
Load Transient Response
20143647
20143648
15
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tween 500 pF and 5000 pF. A 1μF solid tantalum (or 25μF
aluminum electrolytic) on the output swamps this effect and
insures stability. Any increase of the load capacitance larger
than 10μF will merely improve the loop stability and output
impedance.
Application Hints
In operation, the LM117 develops a nominal 1.25V reference
voltage, VREF, between the output and adjustment terminal.
The reference voltage is impressed across program resistor
R1 and, since the voltage is constant, a constant current I1
then flows through the output set resistor R2, giving an output
voltage of
LOAD REGULATION
The LM117 is capable of providing extremely good load reg-
ulation but a few precautions are needed to obtain maximum
performance. The current set resistor connected between the
adjustment terminal and the output terminal (usually 240Ω)
should be tied directly to the output (case) of the regulator
rather than near the load. This eliminates line drops from ap-
pearing effectively in series with the reference and degrading
regulation. For example, a 15V regulator with 0.05Ω resis-
tance between the regulator and load will have a load regu-
lation due to line resistance of 0.05Ω × IL. If the set resistor is
connected near the load the effective line resistance will be
0.05Ω (1 + R2/R1) or in this case, 11.5 times worse.
Figure 2 shows the effect of resistance between the regulator
and 240Ω set resistor.
20143605
FIGURE 1.
Since the 100μA current from the adjustment terminal repre-
sents an error term, the LM117 was designed to minimize
IADJ and make it very constant with line and load changes. To
do this, all quiescent operating current is returned to the out-
put establishing a minimum load current requirement. If there
is insufficient load on the output, the output will rise.
20143606
FIGURE 2. Regulator with Line Resistance in Output Lead
EXTERNAL CAPACITORS
With the TO-3 package, it is easy to minimize the resistance
from the case to the set resistor, by using two separate leads
to the case. However, with the TO-39 package, care should
be taken to minimize the wire length of the output lead. The
ground of R2 can be returned near the ground of the load to
provide remote ground sensing and improve load regulation.
An input bypass capacitor is recommended. A 0.1μF disc or
1μF solid tantalum on the input is suitable input bypassing for
almost all applications. The device is more sensitive to the
absence of input bypassing when adjustment or output ca-
pacitors are used but the above values will eliminate the
possibility of problems.
PROTECTION DIODES
The adjustment terminal can be bypassed to ground on the
LM117 to improve ripple rejection. This bypass capacitor pre-
vents ripple from being amplified as the output voltage is
increased. With a 10μF bypass capacitor 80dB ripple rejec-
tion is obtainable at any output level. Increases over 10μF do
not appreciably improve the ripple rejection at frequencies
above 120Hz. If the bypass capacitor is used, it is sometimes
necessary to include protection diodes to prevent the capac-
itor from discharging through internal low current paths and
damaging the device.
When external capacitors are used with any IC regulator it is
sometimes necessary to add protection diodes to prevent the
capacitors from discharging through low current points into
the regulator. Most 10μF capacitors have low enough internal
series resistance to deliver 20A spikes when shorted. Al-
though the surge is short, there is enough energy to damage
parts of the IC.
When an output capacitor is connected to a regulator and the
input is shorted, the output capacitor will discharge into the
output of the regulator. The discharge current depends on the
value of the capacitor, the output voltage of the regulator, and
the rate of decrease of VIN. In the LM117, this discharge path
is through a large junction that is able to sustain 15A surge
with no problem. This is not true of other types of positive
regulators. For output capacitors of 25μF or less, there is no
need to use diodes.
In general, the best type of capacitors to use is solid tantalum.
Solid tantalum capacitors have low impedance even at high
frequencies. Depending upon capacitor construction, it takes
about 25μF in aluminum electrolytic to equal 1μF solid tanta-
lum at high frequencies. Ceramic capacitors are also good at
high frequencies; but some types have a large decrease in
capacitance at frequencies around 0.5MHz. For this reason,
0.01μF disc may seem to work better than a 0.1μF disc as a
bypass.
The bypass capacitor on the adjustment terminal can dis-
charge through a low current junction. Discharge occurs when
either the input or output is shorted. Internal to the LM117 is
a 50Ω resistor which limits the peak discharge current. No
protection is needed for output voltages of 25V or less and
Although the LM117 is stable with no output capacitors, like
any feedback circuit, certain values of external capacitance
can cause excessive ringing. This occurs with values be-
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16
10μF capacitance. Figure 3 shows an LM117 with protection
diodes included for use with outputs greater than 25V and
high values of output capacitance.
When a value for θ(H−A) is found using the equation shown, a
heatsink must be selected that has a value that is less than
or equal to this number.
θ(H−A) is specified numerically by the heatsink manufacturer
in the catalog, or shown in a curve that plots temperature rise
vs power dissipation for the heatsink.
20143607
D1 protects against C1
D2 protects against C2
FIGURE 3. Regulator with Protection Diodes
Typical Applications
5V Logic Regulator with Electronic Shutdown*
Slow Turn-On 15V Regulator
20143609
20143603
*Min. output ≊ 1.2V
Adjustable Regulator with Improved Ripple Rejection
20143610
†Solid tantalum
*Discharges C1 if output is shorted to ground
17
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High Stability 10V Regulator
20143611
High Current Adjustable Regulator
20143612
‡Optional—improves ripple rejection
†Solid tantalum
*Minimum load current = 30 mA
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18
0 to 30V Regulator
Power Follower
20143613
20143614
Full output current not available at high input-output voltages
5A Constant Voltage/Constant Current Regulator
20143615
†Solid tantalum
*Lights in constant current mode
19
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1A Current Regulator
20143616
1.2V–20V Regulator with Minimum Program Current
20143617
*Minimum load current ≊ 4 mA
High Gain Amplifier
20143618
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20
Low Cost 3A Switching Regulator
20143619
†Solid tantalum
*Core—Arnold A-254168-2 60 turns
4A Switching Regulator with Overload Protection
20143620
†Solid tantalum
*Core—Arnold A-254168-2 60 turns
Precision Current Limiter
20143621
21
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Tracking Preregulator
20143622
Current Limited Voltage Regulator
20143623
(Compared to LM117's higher current limit)
—At 50 mA output only ¾ volt of drop occurs in R3 and R4
Adjusting Multiple On-Card Regulators with Single Control*
20143624
*All outputs within ±100 mV
†Minimum load—10 mA
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22
AC Voltage Regulator
20143625
12V Battery Charger
20143626
Use of RS allows low charging rates with fully charged battery.
50mA Constant Current Battery Charger
20143627
23
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Adjustable 4A Regulator
Current Limited 6V Charger
20143629
*Sets peak current (0.6A for 1Ω)
**The 1000μF is recommended to filter out input transients
Digitally Selected Outputs
20143628
1.2V–25V Adjustable Regulator
20143602
*Sets maximum VOUT
20143601
Full output current not available at high input-output voltages
*Needed if device is more than 6 inches from filter capacitors.
†Optional—improves transient response. Output capacitors in the range
of 1μF to 1000μF of aluminum or tantalum electrolytic are commonly used
to provide improved output impedance and rejection of transients.
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24
Revision History
Date Released
Revision
Section
Changes
03/17/06
A
New Release to corporate format
5 MDS data sheets were consolidated into one
corporate data sheet format. Clarified ΔIAdj/ Line
versus ΔIAdj/ Load by separating the parameters in
all of the tables. MNLM117–K Rev 1C1,
MNLM117–X Rev 0A0, MNLM117–E Rev 0B1,
MRLM117–X-RH Rev 2A0, MRLM117–K-RH Rev
3A0 will be archived.
06/29/06
B
Features, Ordering Information Table, Rad Deleted NSID LM117WGRQML, no longer
Hard Electrical Section for H and WG
packages and Notes
available. Added Available with Radiation
Guarantee, Low Dose NSID's to table
5962R9951705VXA LM117HRLQMLV,
5962R9951705VZA LM117WGRLQMLV, and
reference to Note 11 and 12. Note 12 to Rad Hard
Electrical Heading for H and WG packages. Note
12 to Notes. Archive Revision A.
11/30/2010
09/06/2011
C
D
Features, Ordering Table, Absolute
Ratings, LM117H, WG and K RH Drift
Electrical Table
Added radiation info., Update with current device
information and format, T0–39 Pkg weight, Vo
(Recov). Revision B will be Archived.
Ordering Information, Absolute Ratings
Order Info: Added 'GW' NSIDS and SMD numbers.
Abs Max Ratings: Added 'GW' Theta JA and Theta
JC along with 'GW' weight. Revision C will be
Archived.
25
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Physical Dimensions inches (millimeters) unless otherwise noted
(TO-39) Metal Can Package
NS Package Number H03A
TO-3 Metal Can Package (K)
NS Package Number K02C
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26
Ceramic Leadless Chip Carrier
NS Package Number E20A
Ceramic SOIC
NS Package Number WG16A
27
www.national.com
Notes
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