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 nine fixed output voltages of 1.5 V,
1.8 V, 1.9 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
1
123
3
(Top View)
Pin: 1. Adjust/Ground
2. Output
3. Input
Heatsink tab is connected to Pin 2.
Features
Tab
• 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, 1.9 V, 2.0 V, 2.5 V, 2.85 V,
•
•
•
•
•
•
•
SOT−223
ST SUFFIX
CASE 318H
1
3.3 V, 5.0 V, and 12 V
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
NCV Prefix for Automotive and Other Applications Requiring Site
and Control Changes
Pb−Free Packages are Available
2
1 3
(Top View)
3
DPAK
DT SUFFIX
CASE 369C
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 12 of this data sheet.
DEVICE MARKING INFORMATION
See general marking information in the device marking
section on page 15 of this data sheet.
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
Input
Input
10
mF
3
+
NCP1117
XTXX
1
3
10
mF
+
2 Output
+ 10
1
© Semiconductor Components Industries, LLC, 2012
3
2 Output
10
mF
+ 10
mF
4.75 V
to
5.25 V
mF
Figure 1. Fixed
Output Regulator
April, 2012 − Rev. 24
NCP1117
XTA
Figure 2. Adjustable
Output Regulator
+
+
NCP1117
XT285
1
110 W
2
+ 22
mF
110 W
18 to 27
Lines
110 W
Figure 3. Active SCSI Bus Terminator
1
Publication Order Number:
NCP1117/D
NCP1117, NCV1117
ELECTRICAL CHARACTERISTICS (Cin = 10 mF, Cout = 10 mF, for typical value TA = 25°C, for min and max values TA is the
operating ambient temperature range that applies unless otherwise noted. (Note 4)
Characteristic
Symbol
Reference Voltage, Adjustable Output Devices
(Vin–Vout = 2.0 V, Iout = 10 mA, TA = 25°C)
(Vin–Vout = 1.4 V to 10 V, Iout = 10 mA to 800 mA) (Note 4)
Vref
Output Voltage, Fixed Output Devices
1.5 V (Vin = 3.5 V, Iout = 10 mA, TA = 25 °C)
(Vin = 2.9 V to 11.5 V, Iout = 0 mA to 800 mA) (Note 4)
Vout
Min
Typ
Max
1.238
1.225
1.25
−
1.262
1.270
1.485
1.470
1.500
−
1.515
1.530
Unit
V
V
1.8 V
(Vin = 3.8 V, Iout = 10 mA, TA = 25 °C)
(Vin = 3.2 V to 11.8 V, Iout = 0 mA to 800 mA) (Note 4)
1.782
1.755
1.800
−
1.818
1.845
1.9 V
(Vin = 3.9 V, Iout = 10 mA, TA = 25 °C)
(Vin = 3.3 V to 11.9 V, Iout = 0 mA to 800 mA) (Note 4)
1.872
1.862
1.900
1.900
1.929
1.938
2.0 V
(Vin = 4.0 V, Iout = 10 mA, TA = 25 °C)
(Vin = 3.4 V to 12 V, Iout = 0 mA to 800 mA) (Note 4)
1.970
1.960
2.000
−
2.030
2.040
2.5 V
(Vin = 4.5 V, Iout = 10 mA, TA = 25 °C)
(Vin = 3.9 V to 10 V, Iout = 0 mA to 800 mA,) (Note 4)
2.475
2.450
2.500
−
2.525
2.550
2.85 V (Vin = 4.85 V, Iout = 10 mA, TA = 25 °C)
(Vin = 4.25 V to 10 V, Iout = 0 mA to 800 mA) (Note 4)
(Vin = 4.0 V, Iout = 0 mA to 500 mA) (Note 4)
2.821
2.790
2.790
2.850
−
−
2.879
2.910
2.910
3.3 V
(Vin = 5.3 V, Iout = 10 mA, TA = 25 °C)
(Vin = 4.75 V to 10 V, Iout = 0 mA to 800 mA) (Note 4)
3.267
3.235
3.300
−
3.333
3.365
5.0 V
(Vin = 7.0 V, Iout = 10 mA, TA = 25 °C)
(Vin = 6.5 V to 12 V, Iout = 0 mA to 800 mA) (Note 4)
4.950
4.900
5.000
−
5.050
5.100
12 V
(Vin = 14 V, Iout = 10 mA, TA = 25 °C)
(Vin = 13.5 V to 20 V, Iout = 0 mA to 800 mA) (Note 4)
11.880
11.760
12.000
−
12.120
12.240
−
0.04
0.1
%
−
−
−
−
−
−
−
−
−
0.3
0.4
0.5
0.5
0.5
0.8
0.8
0.9
1.0
1.0
1.0
2.5
2.5
2.5
3.0
4.5
6.0
7.5
mV
−
0.2
0.4
%
−
−
−
−
−
−
−
−
−
2.3
2.6
2.7
3.0
3.3
3.8
4.3
6.7
16
5.5
6.0
6.0
6.0
7.5
8.0
10
15
28
mV
Line Regulation (Note 5)
1.5 V
1.8 V
1.9 V
2.0 V
2.5 V
2.85 V
3.3 V
5.0 V
12 V
Regline
(Vin = 2.9 V to 11.5 V, Iout = 0 mA)
(Vin = 3.2 V to 11.8 V, Iout = 0 mA)
(Vin = 3.3 V to 11.9 V, Iout = 0 mA)
(Vin = 3.4 V to 12 V, Iout = 0 mA)
(Vin = 3.9 V to 10 V, Iout = 0 mA)
(Vin = 4.25 V to 10 V, Iout = 0 mA)
(Vin = 4.75 V to 15 V, Iout = 0 mA)
(Vin = 6.5 V to 15 V, Iout = 0 mA)
(Vin = 13.5 V to 20 V, Iout = 0 mA)
Load Regulation (Note 5)
1.5 V
1.8 V
1.9 V
2.0 V
2.5 V
2.85 V
3.3 V
5.0 V
12 V
Adjustable (Vin = 2.75 V to 16.25 V, Iout = 10 mA)
Adjustable (Iout = 10 mA to 800 mA, Vin = 4.25 V)
(Iout = 0 mA to 800 mA, Vin = 2.9 V)
(Iout = 0 mA to 800 mA, Vin = 3.2 V)
(Iout = 0 mA to 800 mA, Vin = 3.3 V)
(Iout = 0 mA to 800 mA, Vin = 3.4 V)
(Iout = 0 mA to 800 mA, Vin = 3.9 V)
(Iout = 0 mA to 800 mA, Vin = 4.25 V)
(Iout = 0 mA to 800 mA, Vin = 4.75 V)
(Iout = 0 mA to 800 mA, Vin = 6.5 V)
(Iout = 0 mA to 800 mA, Vin = 13.5 V)
Regline
4. NCP1117: Tlow = 0°C , Thigh = 125°C
NCV1117: Tlow = −40°C, Thigh = 125°C
5. Low duty cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible.
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3
