NCV1117DT25RK [ONSEMI]
1.0 A Low-Dropout Positive Fixed and Adjustable Voltage Regulators; 1.0低压差正，固定式和可调式稳压器
| 型号： | NCV1117DT25RK |
| 厂家： | 
ONSEMI |
| 描述： | 1.0 A Low-Dropout Positive Fixed and Adjustable Voltage Regulators |
| 文件： | 总16页 (文件大小：147K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
NCP1117, NCV1117
1.0 A Low−Dropout Positive
Fixed and Adjustable
Voltage Regulators
The NCP1117 series are low dropout positive voltage regulators that
are capable of providing an output current that is in excess of 1.0 A
with a maximum dropout voltage of 1.2 V at 800 mA over
temperature. This series contains eight fixed output voltages of 1.5 V,
1.8 V, 2.0 V, 2.5 V, 2.85 V, 3.3 V, 5.0 V, and 12 V that have no
minimum load requirement to maintain regulation. Also included is an
adjustable output version that can be programmed from 1.25 V to
18.8 V with two external resistors. On chip trimming adjusts the
reference/output voltage to within ±1.0% accuracy. Internal protection
features consist of output current limiting, safe operating area
compensation, and thermal shutdown. The NCP1117 series can
operate with up to 20 V input. Devices are available in SOT−223 and
DPAK packages.
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Tab
SOT−223
ST SUFFIX
CASE 318H
1
1 2 3
3
(Top View)
Pin: 1. Adjust/Ground
2. Output
3. Input
Heatsink tab is connected to Pin 2.
Tab
Features
• Output Current in Excess of 1.0 A
• 1.2 V Maximum Dropout Voltage at 800 mA Over Temperature
• Fixed Output Voltages of 1.5 V, 1.8 V, 2.0 V, 2.5 V, 2.85 V, 3.3 V,
5.0 V, and 12 V
DPAK
DT SUFFIX
CASE 369C
1
2
3
1
3
(Top View)
• Adjustable Output Voltage Option
• No Minimum Load Requirement for Fixed Voltage Output Devices
• Reference/Output Voltage Trimmed to ±1.0%
• Current Limit, Safe Operating and Thermal Shutdown Protection
• Operation to 20 V Input
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on pages 11 and 12 of this data sheet.
DEVICE MARKING INFORMATION
See general marking information in the device marking
section on page 13 of this data sheet.
• NCV Prefix for Automotive and Other Applications Requiring Site
and Control Changes
• Pb−Free Packages are Available
Applications
• Consumer and Industrial Equipment Point of Regulation
• Active SCSI Termination for 2.85 V Version
• Switching Power Supply Post Regulation
• Hard Drive Controllers
• Battery Chargers
TYPICAL APPLICATIONS
110 W
110 W
110 W
3
2
NCP1117
XT285
Input
Output
2
3
NCP1117
XTA
18 to 27
Lines
+
+
22
mF
10
mF
Input
Output
+
+
10
mF
10
3
NCP1117
XTXX
2
1
1
mF
+
+
10
mF
10
mF
4.75 V
to
+
1
110 W
5.25 V
Figure 1. Fixed
Output Regulator
Figure 2. Adjustable
Output Regulator
Figure 3. Active SCSI Bus Terminator
Semiconductor Components Industries, LLC, 2004
1
Publication Order Number:
July, 2004 − Rev. 11
NCP1117/D
NCP1117, NCV1117
MAXIMUM RATINGS
Rating
Symbol
Value
20
Unit
V
Input Voltage (Note 1)
V
in
Output Short Circuit Duration (Notes 2 and 3)
−
Infinite
−
Power Dissipation and Thermal Characteristics
Case 318H (SOT−223)
Power Dissipation (Note 2)
P
D
Internally Limited
W
Thermal Resistance, Junction−to−Ambient, Minimum Size Pad
Thermal Resistance, Junction−to−Case
Case 369A (DPAK)
R
160
15
°C/W
°C/W
q
JA
JC
R
q
Power Dissipation (Note 2)
P
D
Internally Limited
W
Thermal Resistance, Junction−to−Ambient, Minimum Size Pad
Thermal Resistance, Junction−to−Case
R
67
°C/W
°C/W
q
JA
JC
R
6.0
q
Maximum Die Junction Temperature Range
Storage Temperature Range
TJ
−55 to 150
−65 to 150
°C
°C
°C
Tstg
Operating Ambient Temperature Range
T
A
NCP1117
NCV1117
0 to +125
−40 to +125
Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit
values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied,
damage may occur and reliability may be affected.
1. This device series contains ESD protection and exceeds the following tests:
Human Body Model 2000 V per MIL−STD−883, Method 3015.
Machine Model Method 200 V.
2. Internal thermal shutdown protection limits the die temperature to approximately 175°C. Proper heatsinking is required to prevent activation.
The maximum package power dissipation is:
T
* T
J(max)
A
P
D
+
R
in
qJA
3. The regulator output current must not exceed 1.0 A with V greater than 12 V.
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NCP1117, NCV1117
ELECTRICAL CHARACTERISTICS (C = 10 mF, C = 10 mF, for typical value T = 25°C, for min and max values T is the
in
out
A
A
operating ambient temperature range that applies unless otherwise noted. (Note 6)
Characteristic
Symbol
Min
Typ
Max
Unit
Reference Voltage, Adjustable Output Devices
Vref
V
(V –V = 2.0 V, I = 10 mA, T = 25°C)
(V –V = 1.4 V to 10 V, Iout = 10 mA to 800 mA) (Note 6)
in out
1.238
1.225
1.25
−
1.262
1.270
in out
out
A
Output Voltage, Fixed Output Devices
Vout
V
1.5 V (V = 3.5 V, Iout = 10 mA, TA = 25 °C)
1.485
1.470
1.500
−
1.515
1.530
in
(V = 2.9 V to 11.5 V, Iout = 0 mA to 800 mA) (Note 6)
in
1.8 V (V = 3.8 V, Iout = 10 mA, TA = 25 °C)
1.782
1.755
1.800
−
1.818
1.845
in
(V = 3.2 V to 11.8 V, Iout = 0 mA to 800 mA) (Note 6)
in
2.0 V (V = 4.0 V, Iout = 10 mA, TA = 25 °C)
1.970
1.960
2.000
−
2.030
2.040
in
(V = 3.4 V to 12 V, Iout = 0 mA to 800 mA) (Note 6)
in
2.5 V (V = 4.5 V, Iout = 10 mA, TA = 25 °C)
2.475
2.450
2.500
−
2.525
2.550
in
(V = 3.9 V to 10 V, Iout = 0 mA to 800 mA,) (Note 6)
in
2.85 V (V = 4.85 V, Iout = 10 mA, TA = 25 °C)
2.821
2.790
2.790
2.850
−
−
2.879
2.910
2.910
in
(V = 4.25 V to 10 V, Iout = 0 mA to 800 mA) (Note 6)
in
(V = 4.0 V, Iout = 0 mA to 500 mA) (Note 6)
in
3.3 V (V = 5.3 V, Iout = 10 mA, TA = 25 °C)
3.267
3.235
3.300
−
3.333
3.365
in
(V = 4.75 V to 10 V, Iout = 0 mA to 800 mA) (Note 6)
in
5.0 V (V = 7.0 V, Iout = 10 mA, TA = 25 °C)
4.950
4.900
5.000
−
5.050
5.100
in
(V = 6.5 V to 12 V, Iout = 0 mA to 800 mA) (Note 6)
in
12 V
(V = 14 V, Iout = 10 mA, TA = 25 °C)
in
11.880 12.000 12.120
(V = 13.5 V to 20 V, Iout = 0 mA to 800 mA) (Note 6)
in
11.760
−
12.240
Line Regulation (Note 4)
Regline
Adjustable (V = 2.75 V to 16.25 V, Iout = 10 mA)
−
0.04
0.1
%
in
1.5 V (V = 2.9 V to 11.5 V, Iout = 0 mA)
−
−
−
−
−
−
−
−
0.3
0.4
0.5
0.5
0.8
0.8
0.9
1.0
1.0
1.0
2.5
2.5
3.0
4.5
6.0
7.5
mV
in
1.8 V (V = 3.2 V to 11.8 V, Iout = 0 mA)
in
2.0 V (V = 3.4 V to 12 V, Iout = 0 mA)
in
2.5 V (V = 3.9 V to 10 V, Iout = 0 mA)
in
2.85 V (V = 4.25 V to 10 V, Iout = 0 mA)
in
3.3 V (V = 4.75 V to 15 V, Iout = 0 mA)
in
5.0 V (V = 6.5 V to 15 V, Iout = 0 mA)
in
12 V
(V = 13.5 V to 20 V, Iout = 0 mA)
in
Load Regulation (Note 4)
Regline
Adjustable (Iout = 10 mA to 800 mA, V = 4.25 V)
−
0.2
0.4
%
in
1.5 V (Iout = 0 mA to 800 mA, V = 2.9 V)
−
−
−
−
−
−
−
−
2.3
2.6
3.0
3.3
3.8
4.3
6.7
16
5.5
6.0
6.0
7.5
8.0
10
in
1.8 V (Iout = 0 mA to 800 mA, V = 3.2 V)
mV
in
2.0 V (Iout = 0 mA to 800 mA, V = 3.4 V)
in
2.5 V (Iout = 0 mA to 800 mA, V = 3.9 V)
in
2.85 V (Iout = 0 mA to 800 mA, V = 4.25 V)
in
3.3 V (Iout = 0 mA to 800 mA, V = 4.75 V)
in
5.0 V (Iout = 0 mA to 800 mA, V = 6.5 V)
15
28
in
12 V
(Iout = 0 mA to 800 mA, V = 13.5 V)
in
Dropout Voltage (Measured at Vout − 100 mV)
(Iout = 100 mA)
(Iout = 500 mA)
Vin−Vout
V
−
−
−
0.95
1.01
1.07
1.10
1.15
1.20
(Iout = 800 mA)
Output Current Limit (V −V = 5.0 V, T = 25°C, Note 5)
Iout
1000
1500
2200
mA
in out
A
4. Low duty cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible.
5. The regulator output current must not exceed 1.0 A with V greater than 12 V.
in
6. NCP1117: T = 0°C ,
T
= 125°C
= 125°C
low
high
high
NCV1117: T = −40°C, T
low
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NCP1117, NCV1117
ELECTRICAL CHARACTERISTICS (C = 10 mF, C = 10 mF, for typical value T = 25°C, for min and max values T is the
in
out
A
A
operating ambient temperature range that applies unless otherwise noted. (Note 7)
Characteristic
Symbol
Min
Typ
Max
Unit
Minimum Required Load Current for Regulation, Adjustable Output Devices
I
−
0.8
5.0
mA
L(min)
(V = 15 V)
in
Quiescent Current
IQ
mA
1.5 V (V = 11.5 V)
−
−
−
−
−
−
−
−
3.6
4.2
4.5
5.2
5.5
6.0
6.0
6.0
10
10
10
10
10
10
10
10
in
1.8 V (V = 11.8 V)
in
2.0 V (V = 12 V)
in
2.5 V (V = 10 V)
in
2.85 V (V = 10 V)
in
3.3 V (V = 15 V)
in
5.0 V (V = 15 V)
in
12 V
(V = 20 V)
in
Thermal Regulation (T = 25°C, 30 ms Pulse)
−
0.01
0.1
%/W
dB
A
Ripple Rejection (V −V = 6.4 V, I = 500 mA, 10 V 120 Hz Sinewave)
RR
in out
out
pp
Adjustable
1.5 V
1.8 V
2.0 V
2.5 V
2.85 V
3.3 V
5.0 V
67
66
64
64
62
62
60
57
50
73
72
70
70
68
68
64
61
54
−
−
−
−
−
−
−
−
−
12 V
Adjustment Pin Current (V = 11.25 V, Iout = 800 mA)
Iadj
−
−
52
120
5.0
mA
mA
in
Adjust Pin Current Change
DIadj
0.4
(V −V = 1.4 V to 10 V, Iout = 10 mA to 800 mA)
in out
Temperature Stability
ST
St
N
−
−
−
0.5
0.3
−
−
−
%
%
Long Term Stability (T = 25°C, 1000 Hrs End Point Measurement)
A
RMS Output Noise (f = 10 Hz to 10 kHz)
0.003
%Vout
7. NCP1117: T = 0°C ,
T
= 125°C
= 125°C
low
high
high
NCV1117: T = −40°C, T
low
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NCP1117, NCV1117
2.0
1.5
1.4
V
I
= V + 3.0 V
= 10 mA
T = 25°C
J
Adj, 1.5 V,
1.8 V, 2.0 V,
2.5 V
in
out
1.2
1.0
out
T = −40°C
J
1.0
0.5
0.8
0.6
0.4
0.2
0
T = 125°C
J
0
−0.5
−1.0
−1.5
−2.0
2.85 V, 3.3 V,
5.0 V, 12.0 V
Load pulsed at 1.0% duty cycle
150
−50
−25
0
25
50
75
100
125
0
200
400
600
800
1000
I
, OUTPUT CURRENT (mA)
T , AMBIENT TEMPERATURE (°C)
A
out
Figure 4. Output Voltage Change
vs. Temperature
Figure 5. Dropout Voltage
vs. Output Current
2.0
1.8
1.6
1.4
1.2
1.0
2.0
1.5
1.0
0.5
T = 25°C
J
V
= 5.0 V
in
Load pulsed at 1.0% duty cycle
Load pulsed at 1.0% duty cycle
0
0
2
4
6
8
10 12 14
16 18 20
−50
−25
0
25
50
75
100
125
150
V
in
− V , VOLTAGE DIFFERENTIAL (V)
T , AMBIENT TEMPERATURE (°C)
A
out
Figure 6. Output Short Circuit Current
vs. Differential Voltage
Figure 7. Output Short Circuit Current
vs. Temperature
100
80
60
40
20
0
10
5.0
0
−5.0
−10
−15
−20
I
= 10 mA
out
−50
−25
0
25
50
75
100
125
150
−50
−25
0
25
50
75
100
125
150
T , AMBIENT TEMPERATURE (°C)
A
T , AMBIENT TEMPERATURE (°C)
A
Figure 8. Adjust Pin Current
vs. Temperature
Figure 9. Quiescent Current Change
vs. Temperature
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NCP1117, NCV1117
100
80
100
V
v 3.0 V
V
v 0.5 V
ripple
P−P
ripple P−P
f
V
= 120 Hz
ripple
V
− V w 3.0 V
out
v 3.0 V
in
ripple
P−P
80
60
40
20
0
60
f
= 20 kHz
ripple
V
V
I
C
C
= 5.0 V
out
V
v 0.5 V
ripple
P−P
− V = 3.0 V
in
out
= 0.5 A
= 10 mF
V
− V w V
out dropout
in
40
out
V
= 5.0 V
− V = 3.0 V
out
= 10 mF
= 25 mF
out
out
adj
V
in
= 25 mF, f > 60 Hz
C
C
out
20
0
C
= 200 mF, f v 60 Hz
adj
adj
T = 25°C
A
T = 25°C
A
0
200
400
600
800
1000
10
100
1.0 k
10 k
100 k
I
, OUTPUT CURRENT (mA)
f
ripple
, RIPPLE FREQUENCY (Hz)
out
Figure 10. NCP1117XTA Ripple Rejection
vs. Output Current
Figure 11. NCP1117XTA Ripple Rejection
vs. Frequency
C
C
= 1.0 mF
in
0.1
0
= 10 mF
out
I
= 0.1 A
out
5.25
4.25
T = 25°C
A
C
C
= 10 mF
−0.1
in
= 10 mF
out
V
in
= 4.5 V
Preload = 0.1 A
20
0
T = 25°C
A
0.5
0
−20
0
40
80
120
160
200
0
40
80
120
160
200
t, TIME (ms)
t, TIME (ms)
Figure 12. NCP1117XT285
Line Transient Response
Figure 13. NCP1117XT285
Load Transient Response
C
C
= 1.0 mF
in
0.1
0
= 10 mF
out
I
= 0.1 A
out
7.5
6.5
T = 25°C
A
C
C
= 10 mF
in
−0.1
= 10 mF
out
V
in
= 6.5 V
Preload = 0.1 A
20
T = 25°C
A
0.5
0
0
−20
0
40
80
120
160
200
0
40
80
120
160
200
t, TIME (ms)
t, TIME (ms)
Figure 14. NCP1117XT50
Line Transient Response
Figure 15. NCP1117XT50
Load Transient Response
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NCP1117, NCV1117
C
C
= 1.0 mF
in
0.1
= 10 mF
out
I
= 0.1 A
out
0
14.5
13.5
T = 25°C
A
C
C
= 10 mF
−0.1
in
= 10 mF
out
V
in
= 13.5 V
Preload = 0.1 A
20
0
T = 25°C
A
0.5
0
−20
0
40
80
120
160
200
0
40
80
120
160
200
t, TIME (ms)
t, TIME (ms)
Figure 17. NCP1117XT12 Load
Transient Response
Figure 16. NCP1117XT12 Line
Transient Response
180
160
1.6
1.4
1.2
P
for T = 50°C
D(max)
A
140
120
100
80
2.0 oz. Copper
L
Minimum
Size Pad
1.0
0.8
0.6
0.4
L
R
q
JA
60
0
5.0
10
15
20
25
30
L, LENGTH OF COPPER (mm)
Figure 18. SOT−223 Thermal Resistance and Maximum
Power Dissipation vs. P.C.B. Copper Length
1.6
1.4
1.2
1.0
0.8
0.6
0.4
100
90
P
for T = 50°C
A
D(max)
2.0 oz. Copper
80
70
60
50
L
Minimum
Size Pad
L
R
q
JA
40
0
5.0
10
15
20
25
30
L, LENGTH OF COPPER (mm)
Figure 19. DPAK Thermal Resistance and Maximum
Power Dissipation vs. P.C.B. Copper Length
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NCP1117, NCV1117
APPLICATIONS INFORMATION
Introduction
Frequency compensation for the regulator is provided by
The NCP1117 features a significant reduction in dropout
voltage along with enhanced output voltage accuracy and
temperature stability when compared to older industry
standard three−terminal adjustable regulators. These
devices contain output current limiting, safe operating area
compensation and thermal shutdown protection making
them designer friendly for powering numerous consumer
and industrial products. The NCP1117 series is pin
compatible with the older LM317 and its derivative device
types.
capacitor C and its use is mandatory to ensure output
out
stability. A minimum capacitance value of 4.7 mF with an
equivalent series resistance (ESR) that is within the limits of
0.25 W to 2.2 W is required. The capacitor type can be
ceramic, tantalum, or aluminum electrolytic as long as it
meets the minimum capacitance value and ESR limits over
the circuit’s entire operating temperature range. Higher
values of output capacitance can be used to enhance loop
stability and transient response with the additional benefit of
reducing output noise.
Output Voltage
Input
C
Output
3
2
NCP1117
XTA
The typical application circuits for the fixed and
adjustable output regulators are shown in Figures 20 and 21.
The adjustable devices are floating voltage regulators. They
develop and maintain the nominal 1.25 V reference voltage
between the output and adjust pins. The reference voltage is
programmed to a constant current source by resistor R1, and
this current flows through R2 to ground to set the output
voltage. The programmed current level is usually selected to
be greater than the specified 5.0 mA minimum that is
+
+
R1
C
C
V
in
out
ref
1
I
adj
+
adj
R2
R2
ref ǒ1 ) Ǔ) I
V
+ V
R2
out
adj
R1
Figure 21. Adjustable Output Regulator
required for regulation. Since the adjust pin current, I , is
adj
significantly lower and constant with respect to the
programmed load current, it generates a small output
voltage error that can usually be ignored. For the fixed
output devices R1 and R2 are included within the device and
The output ripple will increase linearly for fixed and
adjustable devices as the ratio of output voltage to the
reference voltage increases. For example, with a 12 V
regulator, the output ripple will increase by 12 V/1.25 V or
9.6 and the ripple rejection will decrease by 20 log of this
ratio or 19.6 dB. The loss of ripple rejection can be restored
to the values shown with the addition of bypass capacitor
the ground current I , ranges from 3.0 mA to 5.0 mA
gnd
depending upon the output voltage.
External Capacitors
Input bypass capacitor C may be required for regulator
in
C
adj
, shown in Figure 21. The reactance of C at the ripple
adj
stability if the device is located more than a few inches from
the power source. This capacitor will reduce the circuit’s
sensitivity when powered from a complex source impedance
and significantly enhance the output transient response. The
input bypass capacitor should be mounted with the shortest
possible track length directly across the regulator’s input
and ground terminals. A 10 mF ceramic or tantalum
capacitor should be adequate for most applications.
frequency must be less than the resistance of R1. The value
of R1 can be selected to provide the minimum required load
current to maintain regulation and is usually in the range of
100 W to 200 W.
1
C
u
adj
2 p f
R1
ripple
The minimum required capacitance can be calculated
from the above formula. When using the device in an
application that is powered from the AC line via a
transformer and a full wave bridge, the value for C is:
adj
Input
Output
3
2
f
120 Hz, R1 + 120 W, then C
u 11.1 mF
adj
NCP1117
XTXX
ripple +
+
+
The value for C is significantly reduced in applications
adj
C
C
out
in
1
where the input ripple frequency is high. If used as a post
regulator in a switching converter under the following
conditions:
I
gnd
f
+ 50 kHz, R1 + 120 W, then C
u 0.027 mF
adj
ripple
Figure 20. Fixed Output Regulator
Figures 10 and 11 shows the level of ripple rejection that
is obtainable with the adjust pin properly bypassed.
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NCP1117, NCV1117
Protection Diodes
The second condition is that the ground end of R2 should be
connected directly to the load. This allows true Kelvin
sensing where the regulator compensates for the voltage
drop caused by wiring resistance RW −.
The NCP1117 family has two internal low impedance
diode paths that normally do not require protection when
used in the typical regulator applications. The first path
connects between V and V , and it can withstand a peak
out
in
surge current of about 15 A. Normal cycling of V cannot
Input
RW+ Output
in
3
2
NCP1117
XTA
generate a current surge of this magnitude. Only when V
in
+
Remote
Load
is shorted or crowbarred to ground and C is greater than
C
out
out
+
R1
1
C
in
50 mF, it becomes possible for device damage to occur.
R2
Under these conditions, diode D1 is required to protect the
device. The second path connects between C and V , and
adj
out
it can withstand a peak surge current of about 150 mA.
Protection diode D2 is required if the output is shorted or
RW−
crowbarred to ground and C is greater than 1.0 mF.
adj
Figure 23. Load Sensing
D1
Thermal Considerations
1N4001
This series contains an internal thermal limiting circuit
that is designed to protect the regulator in the event that the
maximum junction temperature is exceeded. When
activated, typically at 175°C, the regulator output switches
off and then back on as the die cools. As a result, if the device
is continuously operated in an overheated condition, the
output will appear to be oscillating. This feature provides
protection from a catastrophic device failure due to
accidental overheating. It is not intended to be used as a
substitute for proper heatsinking. The maximum device
power dissipation can be calculated by:
Input
C
Output
3
NCP1117
XTA
2
+
+
D2
1N4001
R1
C
in
out
1
+
C
adj
R2
Figure 22. Protection Diode Placement
A combination of protection diodes D1 and D2 may be
required in the event that V is shorted to ground and C
is greater than 50 mF. The peak current capability stated for
the internal diodes are for a time of 100 ms with a junction
temperature of 25°C. These values may vary and are to be
used as a general guide.
T
* T
A
J(max)
P
+
D
in
adj
R
qJA
The devices are available in surface mount SOT−223 and
DPAK packages. Each package has an exposed metal tab
that is specifically designed to reduce the junction to air
thermal resistance, R , by utilizing the printed circuit
qJA
board copper as a heat dissipater. Figures 18 and 19 show
Load Regulation
typical R
values that can be obtained from a square
The NCP1117 series is capable of providing excellent
load regulation; but since these are three terminal devices,
only partial remote load sensing is possible. There are two
conditions that must be met to achieve the maximum
available load regulation performance. The first is that the
top side of programming resistor R1 should be connected as
close to the regulator case as practicable. This will minimize
the voltage drop caused by wiring resistance RW + from
appearing in series with reference voltage that is across R1.
qJA
pattern using economical single sided 2.0 ounce copper
board material. The final product thermal limits should be
tested and quantified in order to insure acceptable
performance and reliability. The actual R
can vary
qJA
considerably from the graphs shown. This will be due to any
changes made in the copper aspect ratio of the final layout,
adjacent heat sources, and air flow.
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9
NCP1117, NCV1117
Constant Current
Output
Input
NCP1117
XTA
3
2
Output
Input
R
+
+
NCP1117
XTA
3
2
10
mF
10
mF
R1
1
+
+
50 k 1N4001
10
mF
10
mF
1
R2
2N2907
10
mF
V
R
ref
I
+
) I
out
adj
Figure 24. Constant Current Regulator
Figure 25. Slow Turn−On Regulator
Output
Input
NCP1117
XTA
3
2
+
+
10
mF
10
mF
R1
R2
1
Output
Input
NCP1117
XTA
3
2
+
+
10
10
mF
120
360
1
mF
2N2222
1.0 k
Output Control
On
2N2222
1.0 k
Off
Output Voltage Control
Resistor R2 sets the maximum output voltage. Each
transistor reduces the output voltage when turned on.
V
+ V
ref
out(Off)
Figure 26. Regulator with Shutdown
Figure 27. Digitally Controlled Regulator
Output
Input
3
NCP1117
XT50
2
+
+
10
10
1
mF
mF
50 W
Input
Output
5.0 V to
12 V
+
3
2
NCP1117
XT50
5.3 V AC Line
5.0 V Battery
R
CHG
+
10
mF
10
mF
1
NCP1117
XT50
3
2
+
+
10
10
+
6.6 V
2.0 k
1
mF
mF
−
The 50 W resistor that is in series with the ground pin of the
upper regulator level shifts its output 300 mV higher than the
lower regulator. This keeps the lower regulator off until the
input source is removed.
Figure 28. Battery Backed−Up Power Supply
Figure 29. Adjusting Output of Fixed
Voltage Regulators
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10
NCP1117, NCV1117
ORDERING INFORMATION
Nominal Output
†
Voltage
Adjustable
Adjustable
Device
NCP1117DTA
Package
Shipping
DPAK
75 Units / Rail
75 Units / Rail
NCP1117DTAG
DPAK
(Pb−Free)
NCP1117DTARK
Adjustable
Adjustable
DPAK
2500 / Tape & Reel
2500 / Tape & Reel
NCP1117DTARKG
DPAK
(Pb−Free)
NCP1117DTAT5
NCP1117STAT3
NCP1117STAT3G
Adjustable
Adjustable
Adjustable
DPAK
2500 / Tape & Reel
4000 / Tape & Reel
4000 / Tape & Reel
SOT−223
SOT−223
(Pb−Free)
NCP1117DT12
12
12
DPAK
DPAK
75 Units / Rail
2500 / Tape & Reel
4000 / Tape & Reel
75 Units / Rail
NCP1117DT12RK
NCP1117DT12T3
NCP1117DT15
12
SOT−223
DPAK
1.5
1.5
1.5
NCP1117DT15RK
NCP1117DT15RKG
DPAK
2500 / Tape & Reel
2500 / Tape & Reel
DPAK
(Pb−Free)
NCP1117ST15T3
1.5
1.5
SOT−223
4000 / Tape & Reel
4000 / Tape & Reel
NCP1117ST15T3G
SOT−223
(Pb−Free)
NCP1117DT18
1.8
1.8
1.8
DPAK
DPAK
75 Units / Rail
NCP1117DT18RK
NCP1117DT18RKG
2500 / Tape & Reel
2500 / Tape & Reel
DPAK
(Pb−Free)
NCP1117DT18T5
NCP1117DT18T5G
1.8
1.8
DPAK
2500 / Tape & Reel
2500 / Tape & Reel
DPAK
(Pb−Free)
NCP1117ST18T3
1.8
1.8
SOT−223
4000 / Tape & Reel
4000 / Tape & Reel
NCP1117ST18T3G
SOT−223
(Pb−Free)
NCP1117DT20
2.0
2.0
2.0
2.0
DPAK
DPAK
75 Units / Rail
NCP1117DT20RK
NCP1117ST20T3
NCP1117ST20T3G
2500 / Tape & Reel
4000 / Tape & Reel
4000 / Tape & Reel
SOT−223
SOT−223
(Pb−Free)
NCP1117DT25
2.5
2.5
2.5
DPAK
DPAK
75 Units / Rail
NCP1117DT25RK
NCP1117DT25RKG
2500 / Tape & Reel
2500 / Tape & Reel
DPAK
(Pb−Free)
NCP1117DT25T5
NCP1117ST25T3
NCP1117ST25T3G
2.5
2.5
2.5
DPAK
2500 / Tape & Reel
4000 / Tape & Reel
4000 / Tape & Reel
SOT−223
SOT−223
(Pb−Free)
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifi-
cations Brochure, BRD8011/D.
*NCV prefix is for automotive and other applications requiring site and control changes.
http://onsemi.com
11
NCP1117, NCV1117
ORDERING INFORMATION
Nominal Output
†
Voltage
2.85
2.85
2.85
3.3
Device
NCP1117DT285
Package
DPAK
Shipping
75 Units / Rail
2500 / Tape & Reel
4000 / Tape & Reel
75 Units / Rail
NCP1117DT285RK
NCP1117ST285T3
NCP1117DT33
DPAK
SOT−223
DPAK
NCP1117DT33RK
NCP1117DT33RKG
3.3
DPAK
2500 / Tape & Reel
2500 / Tape & Reel
3.3
DPAK
(Pb−Free)
NCP1117DT33T5
NCP1117DT33T5G
3.3
3.3
DPAK
2500 /Tape & Reel
2500 /Tape & Reel
DPAK
(Pb−Free)
NCP1117ST33T3
3.3
3.3
SOT−223
4000 /Tape & Reel
4000 /Tape & Reel
NCP1117ST33T3G
SOT−223
(Pb−Free)
NCP1117DT50
5.0
5.0
5.0
DPAK
DPAK
75 Units/Rail
NCP1117DT50RK
NCP1117DT50RKG
2500 / Tape & Reel
2500 / Tape & Reel
DPAK
(Pb−Free)
NCP1117ST50T3
NCV1117DTARK*
NCV1117STAT3*
NCV1117STAT3G*
5.0
SOT−223
DPAK
4000 /Tape & Reel
2500 / Tape & Reel
4000 / Tape & Reel
4000 / Tape & Reel
Adjustable
Adjustable
Adjustable
SOT−223
SOT−223
(Pb−Free)
NCV1117ST12T3*
NCV1117ST12T3G*
12
12
SOT−223
4000 / Tape & Reel
4000 / Tape & Reel
SOT−223
(Pb−Free)
NCV1117DT15RK*
NCV1117DT15RKG*
1.5
1.5
DPAK
2500 / Tape & Reel
2500 / Tape & Reel
DPAK
(Pb−Free)
NCV1117ST15T3*
NCV1117DT18T5*
NCV1117DT25RK*
NCV1117ST25T3*
NCV1117DT33T5*
NCV1117DT50RK*
1.5
1.8
2.5
2.5
3.3
5.0
SOT−223
DPAK
4000 / Tape & Reel
2500 / Tape & Reel
2500 / Tape & Reel
4000 / Tape & Reel
2500 / Tape & Reel
2500 / Tape & Reel
DPAK
SOT−223
DPAK
DPAK
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifi-
cations Brochure, BRD8011/D.
*NCV prefix is for automotive and other applications requiring site and control changes.
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12
NCP1117, NCV1117
MARKING DIAGRAMS
SOT−223
ST SUFFIX
CASE 318H
ALYW
117−A
ALYW
17−15
ALYW
17−18
ALYW
117−2
ALYW
17−25
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
Adjustable
1.5 V
1.8 V
2.0 V
2.5 V
ALYW
7−285
ALYW
17−33
ALYW
117−5
ALYW
17−12
1
2
3
1
2
3
1
2
3
1
2
3
2.85 V
3.3 V
5.0 V
12 V
DPAK
DT SUFFIX
CASE 369C
117AJ
17−15
17−18
117−2
17−25
ALYWW
ALYWW
ALYWW
ALYWW
ALYWW
2
2
2
2
2
1
3
1
3
1
3
1
3
1
3
Adjustable
1.5 V
1.8 V
2.0 V
2.5 V
17285
17−33
117−5
17−12
ALYWW
ALYWW
ALYWW
ALYWW
2
2
2
2
1
3
1
3
1
3
1
3
2.85 V
3.3 V
5.0 V
12 V
A
L
= Assembly Location
= Wafer Lot
Y
= Year
WW, W = Work Week
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13
NCP1117, NCV1117
PACKAGE DIMENSIONS
SOT−223
ST SUFFIX
CASE 318H−01
ISSUE O
0.08
NOTES:
E
1. DIMENSIONS ARE IN MILLIMETERS.
2. INTERPRET DIMENSIONS AND TOLERANCES
PER ASME Y14.5M, 1994.
3. DIMENSION E1 DOES NOT INCLUDE INTERLEAD
FLASH OR PROTRUSION. INTERLEAD FLASH OR
PROTRUSION SHALL NOT EXCEED 0.23 PER
SIDE.
4. DIMENSIONS b AND b2 DO NOT INCLUDE
DAMBAR PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.08 TOTAL IN EXCESS
OF THE b AND b2 DIMENSIONS AT MAXIMUM
MATERIAL CONDITION.
M
S
0.2
C B
C
H
B
3
2
e
A
e1
A
5. TERMINAL NUMBERS ARE SHOWN FOR
REFERENCE ONLY.
6. DIMENSIONS D AND E1 ARE TO BE DETERMINED
AT DATUM PLANE H.
4
B
1
b2
0.1
A1
A
MILLIMETERS
E1
B
DIM MIN
MAX
1.80
0.11
0.88
0.80
3.10
3.05
0.35
0.30
6.70
7.30
3.70
A
M
S
S
B
A
C
A
A1
b
−−−
0.02
0.60
0.60
2.90
2.90
0.24
0.24
6.30
6.70
3.30
b1
b2
b3
c
(b)
b1
(b2)
c
c1
c1
D
T
E
E1
e
b3
2.30
4.60
SECTION B−B
L
SECTION A−A
e1
L
−−−
10
0.25
0
T
_
_
SOLDERING FOOTPRINT*
3.8
0.15
2.0
0.079
6.3
0.248
2.3
0.091
2.3
0.091
2.0
0.079
mm
inches
ǒ
Ǔ
1.5
0.059
SCALE 6:1
*For additional information on our Pb−Free strategy and soldering
details, please download the ON Semiconductor Soldering and
Mounting Techniques Reference Manual, SOLDERRM/D.
http://onsemi.com
14
NCP1117, NCV1117
PACKAGE DIMENSIONS
DPAK
DT SUFFIX
CASE 369C−01
ISSUE O
NOTES:
SEATING
PLANE
−T−
1. DIMENSIONING AND TOLERANCING
PER ANSI Y14.5M, 1982.
C
B
R
2. CONTROLLING DIMENSION: INCH.
E
V
INCHES
DIM MIN MAX
MILLIMETERS
MIN
5.97
6.35
2.19
0.69
0.46
0.94
MAX
6.22
6.73
2.38
0.88
0.58
1.14
A
B
C
D
E
F
G
H
J
0.235 0.245
0.250 0.265
0.086 0.094
0.027 0.035
0.018 0.023
0.037 0.045
0.180 BSC
0.034 0.040
0.018 0.023
0.102 0.114
0.090 BSC
4
2
Z
A
K
S
1
3
U
4.58 BSC
0.87
0.46
2.60
1.01
0.58
2.89
K
L
F
2.29 BSC
J
R
S
U
V
Z
0.180 0.215
0.025 0.040
4.57
0.63
0.51
0.89
3.93
5.45
1.01
−−−
1.27
−−−
L
H
0.020
0.035 0.050
0.155 −−−
−−−
D 2 PL
M
G
0.13 (0.005)
T
SOLDERING FOOTPRINT*
6.20
3.0
0.244
0.118
2.58
0.101
5.80
0.228
1.6
0.063
6.172
0.243
mm
inches
ǒ
Ǔ
SCALE 3:1
*For additional information on our Pb−Free strategy and soldering
details, please download the ON Semiconductor Soldering and
Mounting Techniques Reference Manual, SOLDERRM/D.
http://onsemi.com
15
NCP1117, NCV1117
ON Semiconductor and
are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice
to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability
arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.
“Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All
operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights
nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications
intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should
Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates,
and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death
associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal
Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.
PUBLICATION ORDERING INFORMATION
LITERATURE FULFILLMENT:
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Order Literature: http://www.onsemi.com/litorder
Literature Distribution Center for ON Semiconductor
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Phone: 81−3−5773−3850
For additional information, please contact your
local Sales Representative.
NCP1117/D
相关型号：
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