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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 3 123 (Top View) Pin: 1. Adjust/Ground 2. Output 3. Input Heatsink tab is connected to Pin 2. Tab DPAK DT SUFFIX CASE 369C
SOT-223 ST SUFFIX CASE 318H
* 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, * * * * * * * * * * * *
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 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
1 3
2 13 (Top View)
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 14 of this data sheet.
Applications
110 W Input Input 10 mF 3
+
3
+
NCP1117 XTXX 1
2 Output
+ 10
10 mF
NCP1117 XTA 1
2 Output
+ 10
3 10 mF 4.75 V to 5.25 V
+ +
NCP1117 XT285 1
2
+ 22
110 W mF 110 W 18 to 27 Lines
mF
mF
110 W
Figure 1. Fixed Output Regulator
(c) Semiconductor Components Industries, LLC, 2007
Figure 2. Adjustable Output Regulator
1
Figure 3. Active SCSI Bus Terminator
Publication Order Number: NCP1117/D
January, 2007 - Rev. 17
NCP1117, NCV1117
MAXIMUM RATINGS
Rating Input Voltage (Note 1) Output Short Circuit Duration (Notes 2 and 3) Power Dissipation and Thermal Characteristics Case 318H (SOT-223) Power Dissipation (Note 2) Thermal Resistance, Junction-to-Ambient, Minimum Size Pad Thermal Resistance, Junction-to-Case Case 369A (DPAK) Power Dissipation (Note 2) Thermal Resistance, Junction-to-Ambient, Minimum Size Pad Thermal Resistance, Junction-to-Case Maximum Die Junction Temperature Range Storage Temperature Range Operating Ambient Temperature Range NCP1117 NCV1117 Symbol Vin - Value 20 Infinite Unit V -
PD RqJA RqJC PD RqJA RqJC TJ Tstg TA
Internally Limited 160 15 Internally Limited 67 6.0 -55 to 150 -65 to 150 0 to +125 -40 to +125
W C/W C/W W C/W C/W C C C
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. 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 175C. Proper heatsinking is required to prevent activation. The maximum package power dissipation is: TJ(max) * TA PD + RqJA 3. The regulator output current must not exceed 1.0 A with Vin greater than 12 V.
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NCP1117, NCV1117
ELECTRICAL CHARACTERISTICS (Cin = 10 mF, Cout = 10 mF, for typical value TA = 25C, for min and max values TA is the operating ambient temperature range that applies unless otherwise noted. (Note 4)
Characteristic Reference Voltage, Adjustable Output Devices (Vin-Vout = 2.0 V, Iout = 10 mA, TA = 25C) (Vin-Vout = 1.4 V to 10 V, Iout = 10 mA to 800 mA) (Note 4) 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) 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) (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) (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) (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) (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 5) (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) (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) (Vin = 14 V, Iout = 10 mA, TA = 25 C) (Vin = 13.5 V to 20 V, Iout = 0 mA to 800 mA) (Note 4) Adjustable (Vin = 2.75 V to 16.25 V, Iout = 10 mA) Regline Symbol Vref 1.238 1.225 Vout 1.485 1.470 1.782 1.755 1.872 1.862 1.970 1.960 2.475 2.450 2.821 2.790 2.790 3.267 3.235 4.950 4.900 11.880 11.760 - - - - - - - - - - Regline - - - - - - - - - - 1.500 - 1.800 - 1.900 1.900 2.000 - 2.500 - 2.850 - - 3.300 - 5.000 - 12.000 - 0.04 0.3 0.4 0.5 0.5 0.5 0.8 0.8 0.9 1.0 0.2 2.3 2.6 2.7 3.0 3.3 3.8 4.3 6.7 16 1.515 1.530 1.818 1.845 1.929 1.938 2.030 2.040 2.525 2.550 2.879 2.910 2.910 3.333 3.365 5.050 5.100 12.120 12.240 0.1 1.0 1.0 2.5 2.5 2.5 3.0 4.5 6.0 7.5 0.4 5.5 6.0 6.0 6.0 7.5 8.0 10 15 28 % mV 1.25 - 1.262 1.270 V Min Typ Max Unit V
1.9 V
2.0 V
2.5 V
2.85 V
3.3 V
5.0 V
12 V
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
(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) Adjustable (Iout = 10 mA to 800 mA, Vin = 4.25 V)
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
% mV
(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)
4. The regulator output current must not exceed 1.0 A with Vin greater than 12 V. 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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NCP1117, NCV1117
ELECTRICAL CHARACTERISTICS (Cin = 10 mF, Cout = 10 mF, for typical value TA = 25C, for min and max values TA is the operating ambient temperature range that applies unless otherwise noted. (Note 6)
Characteristic Dropout Voltage (Measured at Vout - 100 mV) (Iout = 100 mA) (Iout = 500 mA) (Iout = 800 mA) Output Current Limit (Vin-Vout = 5.0 V, TA = 25C, Note 6) Minimum Required Load Current for Regulation, Adjustable Output Devices (Vin = 15 V) Quiescent Current 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 (Vin = 11.5 V) (Vin = 11.8 V) (Vin = 11.9 V) (Vin = 12 V) (Vin = 10 V) (Vin = 10 V) (Vin = 15 V) (Vin = 15 V) (Vin = 20 V) Symbol Vin-Vout - - - Iout IL(min) IQ - - - - - - - - - - RR 67 66 66 66 64 62 62 60 57 50 Iadj DIadj ST St N - - - - - 73 72 70 72 70 68 68 64 61 54 52 0.4 0.5 0.3 0.003 - - - - - - - - - - 120 5.0 - - - mA mA % % %Vout 3.6 4.2 4.3 4.5 5.2 5.5 6.0 6.0 6.0 0.01 10 10 10 10 10 10 10 10 10 0.1 %/W dB 1000 - 0.95 1.01 1.07 1500 0.8 1.10 1.15 1.20 2200 5.0 mA mA mA Min Typ Max Unit V
Thermal Regulation (TA = 25C, 30 ms Pulse) Ripple Rejection (Vin-Vout = 6.4 V, Iout = 500 mA, 10 Vpp 120 Hz Sinewave) Adjustable 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 Adjustment Pin Current (Vin = 11.25 V, Iout = 800 mA) Adjust Pin Current Change (Vin-Vout = 1.4 V to 10 V, Iout = 10 mA to 800 mA) Temperature Stability Long Term Stability (TA = 25C, 1000 Hrs End Point Measurement) RMS Output Noise (f = 10 Hz to 10 kHz) 6. NCP1117: Tlow = 0C , Thigh = 125C NCV1117: Tlow = -40C, Thigh = 125C
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NCP1117, NCV1117
Vout, OUTPUT VOLTAGE CHANGE (%) 2.0 1.5 1.0 0.5 0 Vin = Vout + 3.0 V Iout = 10 mA Vin - Vout, DROPOUT VOLTAGE (V) Adj, 1.5 V, 1.8 V, 2.0 V, 2.5 V 1.4 1.2 1.0 0.8 0.6 0.4 0.2 Load pulsed at 1.0% duty cycle 0 0 200 400 600 800 1000 Iout, OUTPUT CURRENT (mA) TJ = 25C TJ = -40C
TJ = 125C
-0.5 -1.0 -1.5 -2.0 -50 -25 0 25 50 75 100 125 150 2.85 V, 3.3 V, 5.0 V, 12.0 V
TA, AMBIENT TEMPERATURE (C)
Figure 4. Output Voltage Change vs. Temperature
Figure 5. Dropout Voltage vs. Output Current
2.0 TJ = 25C Iout, OUTPUT CURRENT (A) Iout, OUTPUT CURRENT (A) 1.5
2.0
1.8
1.6
1.0
1.4
0.5 Load pulsed at 1.0% duty cycle 0 0 2 4 6 8 10 12 14 16 18 20
1.2 Vin = 5.0 V Load pulsed at 1.0% duty cycle 1.0 -50 -25 0 25 50 75 100 125 150
Vin - Vout, VOLTAGE DIFFERENTIAL (V)
TA, AMBIENT TEMPERATURE (C)
Figure 6. Output Short Circuit Current vs. Differential Voltage
Figure 7. Output Short Circuit Current vs. Temperature
100 Iadj, ADJUST PIN CURRENT (mA)
IQ, QUIESCENT CURRENT CHANGE (%) 150
10 5.0 0
80
60
-5.0 -10 -15 -20 -50
40
20
Iout = 10 mA
0 -50
-25
0
25
50
75
100
125
-25
0
25
50
75
100
125
150
TA, AMBIENT TEMPERATURE (C)
TA, AMBIENT TEMPERATURE (C)
Figure 8. Adjust Pin Current vs. Temperature
Figure 9. Quiescent Current Change vs. Temperature
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NCP1117, NCV1117
100 RR, RIPPLE REJECTION (dB) RR, RIPPLE REJECTION (dB) fripple = 120 Hz Vripple v 3.0 VP-P 100 Vripple v 3.0 VP-P Vripple v 0.5 VP-P Vin - Vout w 3.0 V
80
80
60
fripple = 20 kHz Vripple v 0.5 VP-P Vout = 5.0 V Vin - Vout = 3.0 V Cout = 10 mF Cadj = 25 mF TA = 25C 0 200 400 600 800 1000
60 Vout = 5.0 V Vin - Vout = 3.0 V Iout = 0.5 A Cout = 10 mF Cadj = 25 mF, f > 60 Hz Cadj = 200 mF, f v 60 Hz TA = 25C 10 100 Vin - Vout w Vdropout
40
40
20
20
0 Iout, OUTPUT CURRENT (mA)
0 1.0 k 10 k 100 k fripple, RIPPLE FREQUENCY (Hz)
Figure 10. NCP1117XTA Ripple Rejection vs. Output Current
INPUT VOLTAGE (V) Cin = 1.0 mF Cout = 10 mF Iout = 0.1 A TA = 25C OUTPUT VOLTAGE DEVIATION (V)
Figure 11. NCP1117XTA Ripple Rejection vs. Frequency
0.1 0 -0.1 Cin = 10 mF Cout = 10 mF Vin = 4.5 V Preload = 0.1 A TA = 25C
5.25 4.25
OUTPUT VOLTAGE DEVIATION (mV)
20 0 -20 0 40 80 120 160 200
LOAD CURRENT CHANGE (A)
0.5 0 0 40 80 120 160 200
t, TIME (ms)
t, TIME (ms)
Figure 12. NCP1117XT285 Line Transient Response
Cin = 1.0 mF Cout = 10 mF Iout = 0.1 A TA = 25C OUTPUT VOLTAGE DEVIATION (V)
Figure 13. NCP1117XT285 Load Transient Response
INPUT VOLTAGE (V)
0.1 0 -0.1 Cin = 10 mF Cout = 10 mF Vin = 6.5 V Preload = 0.1 A TA = 25C
7.5 6.5
OUTPUT VOLTAGE DEVIATION (mV)
20 0 -20 0 40 80 120 160 200
LOAD CURRENT CHANGE (A)
0.5 0 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
OUTPUT VOLTAGE DEVIATION (V)
INPUT VOLTAGE (V)
14.5 13.5
Cin = 1.0 mF Cout = 10 mF Iout = 0.1 A TA = 25C
0.1 0 -0.1 Cin = 10 mF Cout = 10 mF Vin = 13.5 V Preload = 0.1 A TA = 25C
OUTPUT VOLTAGE DEVIATION (mV)
20 0 -20 0 40 80 120 160 200
LOAD CURRENT CHANGE (A)
0.5 0 0 40 80 120 160 200
t, TIME (ms)
t, TIME (ms)
Figure 16. NCP1117XT12 Line Transient Response
Figure 17. NCP1117XT12 Load Transient Response
180 RqJA, THERMAL RESISTANCE, JUNCTION-TO-AIR (CW) 160 140 120 100 80 RqJA 60 0 5.0 Minimum Size Pad
1.6 PD(max) for TA = 50C 2.0 oz. Copper L L 1.4 1.2 1.0 0.8 0.6 0.4 30
10 15 20 25 L, LENGTH OF COPPER (mm)
Figure 18. SOT-223 Thermal Resistance and Maximum Power Dissipation vs. P.C.B. Copper Length
100 RqJA, THERMAL RESISTANCE, JUNCTION-TO-AIR (CW) 90 80 70 60 50 Minimum Size Pad
1.6 PD(max) for TA = 50C 1.4 2.0 oz. Copper L L 1.2 1.0 0.8 0.6
RqJA 40 0 5.0 10 15 20
25
0.4 30
L, LENGTH OF COPPER (mm)
Figure 19. DPAK Thermal Resistance and Maximum Power Dissipation vs. P.C.B. Copper Length http://onsemi.com
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PD, MAXIMUM POWER DISSIPATION (W)
PD, MAXIMUM POWER DISSIPATION (W)
IIII IIII IIII IIII
III III III
NCP1117, NCV1117
APPLICATIONS INFORMATION
Introduction
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.
Output Voltage
Frequency compensation for the regulator is provided by capacitor Cout and its use is mandatory to ensure output 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.
Input Cin 3
+
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 required for regulation. Since the adjust pin current, Iadj, is 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 ground current Ignd, ranges from 3.0 mA to 5.0 mA depending upon the output voltage.
External Capacitors
NCP1117 XTA 1 Iadj R2
2 Vref
+
Output R1
+
Cout
Cadj
Vout + Vref 1 ) R2 ) Iadj R2 R1
Figure 21. Adjustable Output Regulator
Input bypass capacitor Cin may be required for regulator 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.
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 Cadj, shown in Figure 21. The reactance of Cadj at the ripple 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.
Cadj u 1 2 p fripple R1
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 Cadj is:
fripple + 120 Hz, R1 + 120 W, then Cadj u 11.1 mF
Input Cin
3
+
NCP1117 XTXX 1 Ignd
2
+
Output Cout
The value for Cadj is significantly reduced in applications where the input ripple frequency is high. If used as a post regulator in a switching converter under the following conditions:
fripple + 50 kHz, R1 + 120 W, then Cadj u 0.027 mF
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 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 Vout and Vin, and it can withstand a peak surge current of about 15 A. Normal cycling of Vin cannot generate a current surge of this magnitude. Only when Vin is shorted or crowbarred to ground and Cout is greater than 50 mF, it becomes possible for device damage to occur. Under these conditions, diode D1 is required to protect the device. The second path connects between Cadj and Vout, and it can withstand a peak surge current of about 150 mA. Protection diode D2 is required if the output is shorted or crowbarred to ground and Cadj is greater than 1.0 mF.
D1 1N4001 Input Cin
+
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 -.
Input 3
+
NCP1117 XTA 1
2
+
RW+ Cout
Output Remote Load
Cin
R1 R2
RW-
Figure 23. Load Sensing
Thermal Considerations
2 R1
+
3
NCP1117 XTA 1 R2
Output D2 1N4001
+
Cout
Cadj
Figure 22. Protection Diode Placement
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 175C, 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:
PD + TJ(max) * TA RqJA
A combination of protection diodes D1 and D2 may be required in the event that Vin is shorted to ground and Cadj 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 25C. These values may vary and are to be used as a general guide.
Load Regulation
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.
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, RqJA, by utilizing the printed circuit board copper as a heat dissipater. Figures 18 and 19 show typical RqJA values that can be obtained from a square 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 RqJA can vary 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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NCP1117, NCV1117
Input 10 mF
3
+
NCP1117 XTA 1
2
R
Constant Current Output
+
Input 10 mF
3
+
NCP1117 XTA 1
2 R1 50 k 1N4001
+
Output 10 mF
10 mF
R2 V Iout + ref ) Iadj R
2N2907
10 mF
Figure 24. Constant Current Regulator
Figure 25. Slow Turn-On Regulator
Input 10 mF Input 10 mF
+ +
3
NCP1117 XTA 1
2
+
Output R1 10 mF
3
NCP1117 XTA 1
2 120
Output
+ 10
R2
mF 2N2222
Output Control On Off
1.0 k 2N2222 1.0 k
360
Output Voltage Control Vout(Off) + Vref Resistor R2 sets the maximum output voltage. Each transistor reduces the output voltage when turned on.
Figure 26. Regulator with Shutdown
Figure 27. Digitally Controlled Regulator
Input 10 mF
3
+
NCP1117 XT50 1 50 W
2
Output
+ 10
mF Input 3
+
RCHG 3
+
5.3 V AC Line 5.0 V Battery NCP1117 XT50 1 2
10 mF
NCP1117 XT50 1
2
Output 5.0 V to 12 V + 10 mF
+ 10
6.6 V
-
10 mF
+
2.0 k
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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NCP1117, NCV1117
ORDERING INFORMATION
Device NCP1117DTA NCP1117DTAG NCP1117DTARK NCP1117DTARKG NCP1117DTAT5 NCP1117DTAT5G NCP1117STAT3 NCP1117STAT3G NCP1117DT12 NCP1117DT12G NCP1117DT12RK NCP1117DT12RKG NCP1117ST12T3 NCP1117ST12T3G NCP1117DT15 NCP1117DT15G NCP1117DT15RK NCP1117DT15RKG NCP1117ST15T3 NCP1117ST15T3G NCP1117DT18 NCP1117DT18G NCP1117DT18RK NCP1117DT18RKG NCP1117DT18T5 NCP1117DT18T5G NCP1117ST18T3 NCP1117ST18T3G NCP1117DT19RKG 1.9 1.8 1.5 12 Adjustable Nominal Output Voltage Package DPAK DPAK (Pb-Free) DPAK DPAK (Pb-Free) DPAK DPAK (Pb-Free) SOT-223 SOT-223 (Pb-Free) DPAK DPAK (Pb-Free) DPAK DPAK (Pb-Free) SOT-223 SOT-223 (Pb-Free) DPAK DPAK (Pb-Free) DPAK DPAK (Pb-Free) SOT-223 SOT-223 (Pb-Free) DPAK DPAK (Pb-Free) DPAK DPAK (Pb-Free) DPAK DPAK (Pb-Free) SOT-223 SOT-223 (Pb-Free) DPAK (Pb-Free) 4000 / Tape & Reel 2500 / Tape & Reel 2500 / Tape & Reel 75 Units / Rail 4000 / Tape & Reel 2500 / Tape & Reel 75 Units / Rail 4000 / Tape & Reel 2500 / Tape & Reel 75 Units / Rail 4000 / Tape & Reel 2500 / Tape & Reel 75 Units / Rail Shipping
For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. *NCV prefix is for automotive and other applications requiring site and control changes.
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NCP1117, NCV1117
ORDERING INFORMATION
Device NCP1117DT20 NCP1117DT20G NCP1117DT20RK NCP1117DT20RKG NCP1117ST20T3 NCP1117ST20T3G NCP1117DT25 NCP1117DT25G NCP1117DT25RK NCP1117DT25RKG NCP1117DT25T5 NCP1117DT25T5G NCP1117ST25T3 NCP1117ST25T3G NCP1117DT285 NCP1117DT285G NCP1117DT285RK NCP1117DT285RKG NCP1117ST285T3 NCP1117ST285T3G NCP1117DT33 NCP1117DT33G NCP1117DT33RK NCP1117DT33RKG NCP1117DT33T5 NCP1117DT33T5G NCP1117ST33T3 NCP1117ST33T3G NCP1117DT50 NCP1117DT50G NCP1117DT50RK NCP1117DT50RKG NCP1117ST50T3 NCP1117ST50T3G 5.0 3.3 2.85 2.5 2.0 Nominal Output Voltage Package DPAK DPAK (Pb-Free) DPAK DPAK (Pb-Free) SOT-223 SOT-223 (Pb-Free) DPAK DPAK (Pb-Free) DPAK DPAK (Pb-Free) DPAK DPAK (Pb-Free) SOT-223 SOT-223 (Pb-Free) DPAK DPAK (Pb-Free) DPAK DPAK (Pb-Free) SOT-223 SOT-223 (Pb-Free) DPAK DPAK (Pb-Free) DPAK DPAK (Pb-Free) DPAK DPAK (Pb-Free) SOT-223 SOT-223 (Pb-Free) DPAK DPAK (Pb-Free) DPAK DPAK (Pb-Free) SOT-223 SOT-223 (Pb-Free) 4000 / Tape & Reel 2500 / Tape & Reel 75 Units / Rail 4000 / Tape & Reel 2500 / Tape & Reel 75 Units / Rail 4000 / Tape & Reel 2500 / Tape & Reel 75 Units / Rail 4000 / Tape & Reel 2500 / Tape & Reel 75 Units / Rail 4000 / Tape & Reel 2500 / Tape & Reel 75 Units / Rail Shipping
For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. *NCV prefix is for automotive and other applications requiring site and control changes.
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12
NCP1117, NCV1117
ORDERING INFORMATION
Device NCV1117DTARK* NCV1117DTARKG* NCV1117STAT3* NCV1117STAT3G* NCV1117ST12T3* NCV1117ST12T3G* NCV1117DT15RK* NCV1117DT15RKG* NCV1117ST15T3* NCV1117ST15T3G* NCV1117DT18RKG* NCV1117DT18T5* NCV1117DT18T5G* NCV1117DT20RK* NCV1117DT20RKG* NCV1117ST20T3* NCV1117ST20T3G* NCV1117DT25RK* NCV1117DT25RKG* NCV1117ST25T3* NCV1117ST25T3G* NCV1117DT33T5* NCV1117DT33T5G* NCV1117ST33T3* NCV1117ST33T3G* NCV1117DT50RK* NCV1117DT50RKG* 5.0 3.3 3.3 2.5 2.0 1.8 1.5 12 Adjustable Nominal Output Voltage Package DPAK DPAK (Pb-Free) SOT-223 SOT-223 (Pb-Free) SOT-223 SOT-223 (Pb-Free) DPAK DPAK (Pb-Free) SOT-223 SOT-223 (Pb-Free) DPAK (Pb-Free) DPAK DPAK (Pb-Free) DPAK DPAK (Pb-Free) SOT-223 SOT-223 (Pb-Free) DPAK DPAK (Pb-Free) SOT-223 SOT-223 (Pb-Free) DPAK DPAK (Pb-Free) SOT-223 SOT-223 (Pb-Free) DPAK DPAK (Pb-Free) 2500 / Tape & Reel 4000 / Tape & Reel 2500 / Tape & Reel 4000 / Tape & Reel 2500 / Tape & Reel 4000 / Tape & Reel 2500 / Tape & Reel 4000 / Tape & Reel 2500 / Tape & Reel 4000 / Tape & Reel 2500 / Tape & Reel Shipping
For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. *NCV prefix is for automotive and other applications requiring site and control changes.
http://onsemi.com
13
NCP1117, NCV1117
MARKING DIAGRAMS - NCP PREFIX
SOT-223 ST SUFFIX CASE 318H
AYW 117-A G G
AYW 17-15 G G
AYW 17-18 G G
AYW 17-19 G G
AYW 117-2 G G
AYW 17-25 G G
1
2
3
1
2 1.5 V
3
1
2 1.8 V
3
1
2 1.9 V
3
1
2 2.0 V
3
1
2 2.5 V
3
Adjustable
AYW 7-285 G G
AYW 17-33 G G
AYW 117-5 G G
AYW 17-12 G G
1
2 2.85 V
3
1
2 3.3 V
3
1
2 5.0 V
3
1
2 12 V
3
DPAK DT SUFFIX CASE 369C
117AJG ALYWW 2 1 3
17-15G ALYWW 2 1 1.5 V 3
17-18G ALYWW 2 1 1.8 V 3
17-19G ALYWW 2 1 1.9 V 3
117-2G ALYWW 2 1 2.0 V 3
17-25G ALYWW 2 1 2.5 V 3
Adjustable
17285G ALYWW 2 1 3
17-33G ALYWW 2 1 3.3 V 3
117-5G ALYWW 2 1 5.0 V 3
17-12G ALYWW 2 1 12 V 3
2.85 V
A = Assembly Location L = Wafer Lot Y = Year WW, W = Work Week G or G = Pb-Free Package (Note: Microdot may be in either location)
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14
NCP1117, NCV1117
MARKING DIAGRAMS - NCV PREFIX
SOT-223 ST SUFFIX CASE 318H
AYW 117AV G G
AYW 1715V G G
AYW 1172V G G
1
2
3
1
2 1.5 V
3
1
2 2.0 V
3
Adjustable
AYW 1725V G G 1
AYW 1733V G G
AYW 1712V G G
1
2 2.5 V
3
2 3.3 V
3
1
2 12 V
3
DPAK DT SUFFIX CASE 369C
17AJVG ALYWW 2 1 3
1715VG ALYWW 2 1 1.5 V 3
1718VG ALYWW 2 1 1.8 V 3
1172VG ALYWW 2 1 2.0 V 3
Adjustable
1725VG ALYWW 2 1 2.5 V 3
1733VG ALYWW 2 1 3.3 V A = Assembly Location L = Wafer Lot Y = Year WW, W = Work Week G or G = Pb-Free Package (Note: Microdot may be in either location) 3
1175VG ALYWW 2 1 5.0 V 3
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15
NCP1117, NCV1117
PACKAGE DIMENSIONS
SOT-223 ST SUFFIX CASE 318H-01 ISSUE O
E H 0.2
M
0.08 CB
S
C B
S
B A D
2 4
b
e1
B b2 0.1
M
1
CA
S
B
S
A
E1
B
A1 A (b)
0.1
A
M
CA
e
S
3
NOTES: 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. 5. TERMINAL NUMBERS ARE SHOWN FOR REFERENCE ONLY. 6. DIMENSIONS D AND E1 ARE TO BE DETERMINED AT DATUM PLANE H. DIM A A1 b b1 b2 b3 c c1 D E E1 e MILLIMETERS MIN MAX --- 1.80 0.02 0.11 0.60 0.88 0.60 0.80 2.90 3.10 2.90 3.05 0.24 0.35 0.24 0.30 6.30 6.70 6.70 7.30 3.30 3.70 2.30 4.60 --- 0.25 0_ 10_
(b2)
T
L
c1
b3
SECTION B-B
SECTION A-A
SOLDERING FOOTPRINT*
3.8 0.15 2.0 0.079
2.3 0.091
2.3 0.091
2.0 0.079 1.5 0.059
mm inches
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.
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CC EE EE
b1
CCCCCCE EEEEEE EEEEEEE
c
T
e1 L
6.3 0.248
NCP1117, NCV1117
PACKAGE DIMENSIONS
DPAK DT SUFFIX CASE 369C-01 ISSUE O
-T- B V R
4 SEATING PLANE NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. INCHES MIN MAX 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 0.180 0.215 0.025 0.040 0.020 --- 0.035 0.050 0.155 --- MILLIMETERS MIN MAX 5.97 6.22 6.35 6.73 2.19 2.38 0.69 0.88 0.46 0.58 0.94 1.14 4.58 BSC 0.87 1.01 0.46 0.58 2.60 2.89 2.29 BSC 4.57 5.45 0.63 1.01 0.51 --- 0.89 1.27 3.93 ---
C E
A S
1 2 3
Z U
K F L D G
2 PL
J H 0.13 (0.005)
M
T
DIM A B C D E F G H J K L R S U V Z
SOLDERING FOOTPRINT*
6.20 0.244 2.58 0.101 5.80 0.228 1.6 0.063 6.172 0.243 3.0 0.118
SCALE 3:1
mm inches
*For additional information on our Pb-Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D.
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: Literature Distribution Center for ON Semiconductor P.O. Box 5163, Denver, Colorado 80217 USA Phone: 303-675-2175 or 800-344-3860 Toll Free USA/Canada Fax: 303-675-2176 or 800-344-3867 Toll Free USA/Canada Email: orderlit@onsemi.com N. American Technical Support: 800-282-9855 Toll Free USA/Canada Europe, Middle East and Africa Technical Support: Phone: 421 33 790 2910 Japan Customer Focus Center Phone: 81-3-5773-3850 ON Semiconductor Website: www.onsemi.com Order Literature: http://www.onsemi.com/orderlit For additional information, please contact your local Sales Representative
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17
NCP1117/D

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