NCP51460
20 mA Micropower
Precision Voltage
Reference
The NCP51460 is a high performance, low power precision voltage
reference. This device combines very high accuracy, low power
dissipation and small package size. It can supply output current up to
20 mA at a 3.3 V fixed output voltage with excellent line and load
regulation characteristics making it ideal for precision regulator
applications. It is designed to be stable with or without an output
capacitor. The protective features include Short Circuit and Reverse
Input Voltage Protection. The NCP51460 is packaged in a 3−lead
surface mount SOT−23 package.
Features
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SOT−23
CASE 318
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Fixed Output Voltage 3.3 V
V
OUT
Accuracy 1% over 0 to +100°C
Wide Input Voltage Range up to 28 V
Low Quiescent Current
Low Noise
Reverse Input Voltage Protection
Stable Without an Output Capacitor
Available in 3 leads SOT−23 Package
This is a Pb−Free Device
MARKING DIAGRAM
AND PIN ASSIGNMENT
GND
3
46AMG
G
1
V
IN
2
V
OUT
(Top View)
46A
= Specific Device Code
M
= Date Code
G
= Pb−Free Package
(Note: Microdot may be in either location)
Typical Applications
Handheld Instruments
Precision Regulators
Data Acquisition Systems
High Accuracy Micropower Supplies
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 10 of this data sheet.
V
IN
= 4.2 to 28 V
V
IN
C
IN
0.1
mF
NCP51460
(3.3 V fixed)
GND
V
OUT
V
OUT
3.3 V
Figure 1. Typical Application Schematics
©
Semiconductor Components Industries, LLC, 2009
1
October, 2016 − Rev. 1
Publication Order Number:
NCP51460/D
NCP51460
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Table 1. PIN FUNCTION DESCRIPTION
Pin No.
1
2
3
Pin Name
V
IN
Description
Positive Input Voltage
V
OUT
GND
Regulated Output Voltage
Power Supply Ground; Device Substrate
Table 2. ABSOLUTE MAXIMUM RATINGS
Rating
Input Voltage (Note 1)
Reverse Input Voltage
Output Short Circuit Duration, T
A
= 25°C
V
IN
≤
27 V
V
IN
> 27 V
Maximum Junction Temperature
Storage Temperature
ESD Capability, Human Body Model (Note 2)
ESD Capability, Machine Model (Note 2)
Symbol
V
IN
V
IN
t
SC
Value
30
−15
R
50
150
Unit
V
V
sec
T
J(max)
T
STG
ESD
HBM
ESD
MM
°C
°C
V
V
−65 to 150
2000
200
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be affected.
1. Refer to ELECTRICAL CHARACTERISTICS and APPLICATION INFORMATION for Safe Operating Area.
2. This device series incorporates ESD protection and is tested by the following methods:
ESD Human Body Model tested per AEC−Q100−002 (EIA/JESD22−A114)
ESD Machine Model tested per AEC−Q100−003 (EIA/JESD22−A115)
Latch up Current Maximum Rating:
±150
mA per JEDEC standard: JESD78.
Table 3. THERMAL CHARACTERISTICS
Rating
Thermal Characteristics, SOT−23 package
Thermal Resistance, Junction−to−Ambient (Note 3)
3. Soldered on 1 oz 50 mm
2
FR4 copper area.
Symbol
R
qJA
Value
246
Unit
°C/W
Table 4. OPERATING RANGES
Rating
Operating Input Voltage (Note 4)
Operating Ambient Temperature Range
Symbol
V
IN
T
A
Min
V
OUT
+ 0.9
0
Max
28
100
Unit
V
°C
4. Refer to ELECTRICAL CHARACTERISTICS and APPLICATION INFORMATION for Safe Operating Area.
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NCP51460
Table 5. ELECTRICAL CHARACTERISTICS
(V
IN
= V
OUT
+ 2.5 V, I
OUT
= 0, C
IN
= 0.1
mF,
C
OUT
= 0
mF;
For typical values
T
A
= 25°C, for min/max values 0°C
≤
T
A
≤
100°C unless otherwise noted.) (Note 5).
Parameter
Output Voltage
Test Conditions
Symbol
V
OUT
V
IN
= V
OUT
+ 0.9 V to V
OUT
+ 2.5 V
V
IN
= V
OUT
+ 2.5 V to V
OUT
+ 20 V
I
OUT
= 0 to 100
mA
I
OUT
= 0 to 10 mA
I
OUT
= 0 to 20 mA
Measured at V
OUT
− 2%
I
OUT
= 0 mA
I
OUT
= 10 mA
I
OUT
= 0 mA, T
A
= 25°C
I
OUT
= 0 mA, 0°C
≤
T
A
≤
100°C
V
OUT
= 0 V, T
A
= 25°C
V
IN
= − 15 V, T
A
= 25°C
f = 0.1 Hz to 10 Hz
f = 10 Hz to 1 kHz
0°C
≤
T
A
≤
100°C
Reg
LINE
Reg
LOAD
Min
3.267
(−1%)
−
−
−
−
−
−
−
I
Q
I
SC
I
LEAK
V
N
T
CO
−
−
−
−
−
−
Typ
3.3
Max
3.333
(+1%)
500
130
4000
300
300
0.9
1.4
200
220
−
10
−
−
mA
mA
mA
mV
PP
mV
rms
ppm/°C
Unit
V
Line Regulation
Load Regulation
150
65
1100
150
120
0.65
0.9
140
80
0.1
12
18
18
ppm/V
ppm/mA
Dropout Voltage
V
DO
V
Quiescent Current
Output Short Circuit Current
Reverse Leakage
Output Noise Voltage (Note 6)
Output Voltage Temperature
Coefficient
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
5. Performance guaranteed over the indicated operating temperature range by design and/or characterization, tested at T
J
= T
A
= 25°C. Low
duty cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible.
6. The noise spectral density from 0.1 Hz to 10 Hz is measured, then the integral output noise voltage in this range is calculated. Finally the
peak to peak noise is calculated as 5x integral output noise.
TYPICAL CHARACTERISTICS
3.332
3.327 I
OUT
= 0 mA
3.322 C
OUT
= 0
mF
3.317
3.312
V
IN
= V
OUT
+ 20 V
3.307
3.302
3.297
3.292
V
IN
= V
OUT
+ 0.9 V
V
IN
= V
OUT
+ 2.5 V
3.287
3.282
3.277
3.272
3.267
−40 −20 0
20
40
60
80
100 120
T
J
, JUNCTION TEMPERATURE (°C)
3.332
3.327 V
IN
= V
OUT
+ 2.5 V
3.322 C
OUT
= 0
mF
3.317
3.312
I
OUT
= 0 mA
3.307
3.302
3.297
3.292
I
OUT
= 10 mA
3.287
3.282
I
OUT
= 20 mA
3.277
3.272
3.267
−40 −20 0
20
40
60
80
V
OUT
, OUTPUT VOLTAGE (V)
140
V
OUT
, OUTPUT VOLTAGE (V)
100
120 140
T
J
, JUNCTION TEMPERATURE (°C)
Figure 2. Output Voltage vs. Temperature
Figure 3. Output Voltage vs. Temperature
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NCP51460
TYPICAL CHARACTERISTICS
3.332
3.327 V
IN
= 5.8 V
3.322 I
OUT
= 0 mA
3.317 C
OUT
= 0
mF
3.312
Unit 1
3.307
3.302
3.297
3.292
3.287
Unit 3 Unit 2
3.282
3.277
3.272
3.267
−40 −20 0
20
1.2
V
DROP
, DROPOUT VOLTAGE (V)
Three Typical Parts
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
−40
−20
0
20
40
60
80
100
120 140
I
O
= 0 mA
I
O
= 1 mA
I
O
= 5 mA
C
OUT
= 0
mF
V
OUT
, OUTPUT VOLTAGE (V)
I
O
= 20 mA
I
O
= 10 mA
40
60
80
100
120
140
T
J
, JUNCTION TEMPERATURE (°C)
T
J
, JUNCTION TEMPERATURE (°C)
Figure 4. Output Voltage vs. Temperature
450
I
Q
, QUIESCENT CURRENT (mA)
400
350
300
250
200
150
100
50
0
0
2
4
6
8
10
12
14
16
18
20
V
IN
, INPUT VOLTAGE (V)
T
J
= −25°C
T
J
= 125°C
T
J
= 25°C
I
OUT
= 0 mA
C
OUT
= 0
mF
REG
LINE
, LINE REGULATION (mV)
5.0
Figure 5. Dropout Voltage
I
OUT
= 0 mA
4.5 C
OUT
= 0
mF
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
−40
−20
0
20
V
IN
= 5.8 to 23.3 V
V
IN
= 5.8 to 18.3 V
V
IN
= 5.8 to 15.3 V
V
IN
= 5.8 to 12.3 V
V
IN
= 5.8 to 9.3 V
40
60
80
100
120 140
T
J
, JUNCTION TEMPERATURE (°C)
Figure 6. Quiescent Current
12
10
8
6
4
2
0
−40
I
OUT
= 0 to
1 mA
−20
0
20
40
60
V
IN
= 5.8 V
C
OUT
= 0
mF
I
OUT
= 0 to I
OUT
= 0 to
20 mA
10 mA
LOAD
REG
, LOAD REGULATION (mV)
REG
LOAD
, LOAD REGULATION (mV)
I
OUT
= 0 to
15 mA
160
140
120
100
80
60
Figure 7. Line Regulation
V
IN
= 5.8 V
C
OUT
= 0
mF
I
OUT
= 0 mA
down to −2 mA
I
OUT
= 0 mA
40 down to −1.50 mA
20
0
−40
−20
0
I
OUT
= 0 mA
down to −1.2 mA
I
OUT
= 0
mA
down to −500
mA
I
OUT
= 0 to
5 mA
80
100
120
140
20
40
60
80
100
120 140
T
J
, JUNCTION TEMPERATURE (°C)
T
J
, JUNCTION TEMPERATURE (°C)
Figure 8. Load Regulation Sourcing
Figure 9. Load Regulation Sinking
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NCP51460
TYPICAL CHARACTERISTICS
I
SC
, SHORT CIRCUIT CURRENT (mA)
140
130
120
110
100
90
80
70
60
50
40
−40
−20
0
20
40
60
80
100
120
140
V
IN
= 5.8 V
V
IN
= 28 V
V
IN
= 15 V
C
OUT
= 0
mF
PSRR, POWER SUPPLY REJECTION RATIO (dB)
80
70
60
50
40
30
20
10
0
10
I
OUT
= 0 mA
V
IN
= 5.8 VDC
$50
mVAC
C
OUT
= 0
mF
T
J
= 25°C
100
1000
10k
I
OUT
= 20 mA
I
OUT
= 1 mA
100k
1M
T
J
, JUNCTION TEMPERATURE (°C)
f, FREQUENCY
Figure 10. Short Circuit Current
PSRR, POWER SUPPLY REJECTION RATIO (dB)
80
70
60
50
40
I
OUT
= 0 mA
30
20
10
0
10
V
IN
= 5.8 VDC
$50
mVAC
C
OUT
= 0.1
mF
MLCC
T
J
= 25°C
100
I
OUT
= 20 mA
I
OUT
= 1 mA
PSRR, POWER SUPPLY REJECTION RATIO (dB)
100
90
80
70
60
50
40
30
20
10
0
10
Figure 11. Power Supply Rejection Ratio
C
out
= 0
mF
I
OUT
= 1 mA
I
OUT
= 0 mA
I
OUT
= 20 mA
V
IN
= 5.8 VDC
$50
mVAC
C
OUT
= 1
mF
MLCC
T
J
= 25°C
100
1000
10k
f, FREQUENCY
1000
10k
f, FREQUENCY
100k
1M
100k
1M
Figure 12. Power Supply Rejection Ratio
C
out
= 0.1
mF
PSRR, POWER SUPPLY REJECTION RATIO (dB)
90
80
70
60
50
40
30
20
10
0
4
5
6
7
8
9
10
V
IN
, INPUT VOLTAGE (V)
11
12
f
RIPPLE
= 100 kHz
f
RIPPLE
= 1 MHz
f
RIPPLE
= 10 kHz
I
OUT
= 10 mA, C
OUT
= 0
mF,
T
A
= 25°C
f
RIPPLE
= 100 Hz
PSRR, POWER SUPPLY REJECTION RATIO (dB)
80
70
60
50
40
30
20
10
0
4
Figure 13. Power Supply Rejection Ratio
C
out
= 1
mF
I
OUT
= 20 mA, C
OUT
= 0
mF,
T
A
= 25°C
f
RIPPLE
= 100 Hz
f
RIPPLE
= 10 kHz
f
RIPPLE
= 100 kHz
f
RIPPLE
= 1 MHz
5
6
7
8
9
10
V
IN
, INPUT VOLTAGE (V)
11
12
Figure 14. Power Supply Rejection Ratio vs.
Input Voltage
Figure 15. Power Supply Rejection Ratio vs.
Input Voltage
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