NCP140
LDO Voltage Regulator,
150 mA, Capacitor Free,
Low Noise
The NCP140 is a 150 mA very low dropout regulator which offers
excellent voltage accuracy and clean output voltage for power
sensitive application. The NCP140 is very suitable for battery
powered application due to very low quiescent current and virtually
zero current at disable mode. This device is stable with or without
output capacitors and allows minimize footprint and BOM. The
XDFN4 package is optimized for use in space constrained
applications.
Features
1
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T
MARKING
DIAGRAMS
XDFN4, 0.8x0.8
CASE 711BF
XM
M
1
•
Stable Operation with or without Capacitors
•
Operating Input Voltage Range: 1.6 V to 5.5 V
•
Available in Fixed Voltage Options: 1.5 V to 5 V
•
•
•
•
•
•
•
Contact Factory for Other Voltage Options
±1%
Typical Accuracy @ 25°C
Very Low Quiescent Current of Typ. 45
mA
Standby Current: 0.1
mA
Very Low Dropout: 125 mV for 3.3 V @ 150 mA
High PSRR: 55 dB @ 1 kHz
Available in − XDFN4 − 0.8 mm x 0.8 mm x 0.4 mm Package
− XDFN4 − 1.0 mm x 1.0 mm x 0.4 mm Package
These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
1
X
= Specific Device Code
MM = Date Code
XDFN4, 1.0x1.0
CASE 711AJ
XX M
1
XX = Specific Device Code
M = Date Code
PIN CONNECTIONS
EN
3
IN
4
Typical Applications
•
Battery−powered Equipment
•
Smartphones, Tablets
•
Cameras, DVRs, STB and Camcorders
V
IN
V
OUT
2
GND
1
OUT
(Bottom View)
IN
EN
ON
OFF
OUT
NCP140
ORDERING INFORMATION
GND
See detailed ordering and shipping information on page 13 of
this data sheet.
Figure 1. Typical Application Schematic
©
Semiconductor Components Industries, LLC, 2016
1
July, 2018 − Rev. 2
Publication Order Number:
NCP140/D
NCP140
IN
EN
BANDGAP
REFERENCE
ENABLE
LOGIC
THERMAL
SHUTDOWN
INTEGRATED
SOFT−START
MOSFET
DRIVER WITH
CURRENT LIMIT
OUT
*
ACTIVE DISCHARGE
EN
GND
*Active output discharge is available only for NCP140Axxx options.
Figure 2. Simplified Schematic Block Diagram
PIN FUNCTION DESCRIPTION
Pin No.
1
2
3
4
−
Pin Name
OUT
GND
EN
IN
EPAD
Description
Regulated output voltage pin. A small ceramic capacitor can be connected to improve fast load transient.
Ground pin
Driving EN over 0.9 V turns on the regulator. Driving EN below 0.4 V puts the regulator into shutdown mode.
Input pin
Expose pad must be connect to GND pin as short as possible. Soldered to a large ground copper plane al-
lows for effective heat removal.
ABSOLUTE MAXIMUM RATINGS
Rating
Input Voltage (Note 1)
Output Voltage
Chip Enable Input
Output Short Circuit Duration
Maximum Junction Temperature
Storage Temperature
ESD Capability, Human Body Model (Note 2)
ESD Capability, Machine Model (Note 2)
Symbol
V
IN
V
OUT
V
CE
t
SC
T
J
T
STG
ESD
HBM
ESD
MM
Value
−0.3 V to 6
−0.3 V to V
IN
+ 0.3 V or 6 V
−0.3 V to 6 V
unlimited
150
−55 to 150
2000
200
Unit
V
V
V
s
°C
°C
V
V
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 EIA/JESD22−A114
ESD Machine Model tested per EIA/JESD22−A115
Latchup Current Maximum Rating tested per JEDEC standard: JESD78.
THERMAL CHARACTERISTICS
Rating
Thermal Characteristics, XDFN4 0.8 mm x 0.8 mm Thermal Resistance, Junction−to−Air (Note 3)
Thermal Characteristics, XDFN4 1.0 mm x 1.0 mm Thermal Resistance, Junction−to−Air (Note 3)
Symbol
R
qJA
R
qJA
Value
252
265
Unit
°C/W
°C/W
3. Measured according to JEDEC board specification. Detailed description of the board can be found in JESD51−7
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2
NCP140
ELECTRICAL CHARACTERISTICS
−40°C
≤
T
J
≤
85°C; V
IN
= V
OUT(NOM)
+ 0.5 V; I
OUT
= 1 mA, C
IN
= C
OUT
= none, unless
otherwise noted. V
EN
= 0.9 V. Typical values are at T
J
= +25°C. Min/Max values are for −40°C
≤
T
J
≤
85°C (Note 3)
Parameter
Operating Input Voltage
Output Voltage Accuracy
V
OUT
≥
1.8 V, T
J
= 25°C
V
OUT
< 1.8 V, T
J
= 25°C
V
OUT
≥
1.8 V, −40°C
≤
T
J
≤
85°C
V
OUT
< 1.8 V, −40°C
≤
T
J
≤
85°C
Line Regulation
Load Regulation
Dropout Voltage (Note 5)
I
OUT
= 150 mA
Output Current Limit
Short Circuit Current
Quiescent Current
Shutdown Current
EN Pin Threshold Voltage
V
OUT(NOM)
+ 0.5 V
≤
V
IN
≤
5.5 V
I
OUT
= 0 mA to 150 mA
V
OUT(NOM)
= 1.8 V
V
OUT(NOM)
= 3.3 V
I
CL
I
SC
I
Q
I
DIS
V
ENH
V
ENL
I
EN
T
ON
PSRR
0.01
100
62
55
V
N
T
SD
T
SDH
R
DISCH
17
160
20
100
mV
RMS
°C
°C
W
0.9
0.4
1.0
mA
ms
dB
Line
Reg
Load
Reg
V
DO
−2
−50
1.0
10
255
125
230
250
45
0.1
75
1.0
Test Conditions
Symbol
V
IN
V
OUT
Min
1.6
±1
±20
+2
+50
5.0
30
390
220
mA
mA
mA
mA
V
Typ.
Max
5.5
Unit
V
%
mV
%
mV
mV
mV
mV
V
OUT
= 90% V
OUT(NOM)
V
OUT
= 0V
I
OUT
= 0 mA
V
EN
≤
0.4 V, V
IN
= 5.5 V
EN Input Voltage “H”
EN Input Voltage “L”
EN Pin Current
Turn−On Time
Power Supply Rejection Ratio
V
EN
= 5.5 V
C
OUT
= 1
mF,
I
OUT
=150 mA,
From assertion of V
EN
to V
OUT
= 98%V
OUT(NOM)
V
IN
= 3.5 V, V
OUT(NOM)
= 2.5 V,
I
OUT
= 10 mA
f = 100 Hz
f = 1 kHz
Output Noise Voltage
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
Output Discharge Pull−Down
V
IN
= 2.3 V, V
OUT(NOM)
= 1.8 V,
I
OUT
= 10 mA f = 100 Hz to 100 kHz
Temperature increasing from T
J
= +25°C
Temperature falling from T
SD
V
EN
≤
0.4 V, A options only
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.
4. Performance guaranteed over the indicated operating temperature range by design and/or characterization. Production tested at T
A
= 25°C.
Low duty cycle pulse techniques are used during the testing to maintain the junction temperature as close to ambient as possible.
5. Dropout voltage is characterized when V
OUT
falls 100 mV below V
OUT(NOM)
.
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3
NCP140
TYPICAL CHARACTERISTICS
1.810
V
OUT
, OUTPUT VOLTAGE (V)
I
OUT
= 1 mA
V
OUT
, OUTPUT VOLTAGE (V)
1.805
1.800
1.795
I
OUT
= 150 mA
3.34
3.33
3.32
3.31
3.30
3.29
3.28
3.27
3.26
3.25
3.24
−40 −20
V
IN
= 3.8 V
V
OUT
= 3.3 V
C
IN
= 1
mF
C
OUT
= 1
mF
0
20
40
60
80
100
120 140
I
OUT
= 150 mA
I
OUT
= 1 mA
1.790
1.785
1.780
1.775
1.770
1.765
1.760
−40 −20
V
IN
= 2.3 V
V
OUT
= 1.8 V
C
IN
= 1
mF
C
OUT
= 1
mF
0
20
40
60
80
100
120
140
T
J
, JUNCTION TEMPERATURE (°C)
T
J
, JUNCTION TEMPERATURE (°C)
Figure 3. Output Voltage vs. Temperature −
V
OUT
= 1.8 V
5.0
REG
LINE
, LINE REGULATION (mV)
REG
LINE
, LINE REGULATION (mV)
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
−40 −25
V
IN
= 2.3 to 5.5 V
V
OUT
= 1.8 V
C
IN
= 1
mF
C
OUT
= 1
mF
2.50
2.25
2.00
1.75
1.50
1.25
1.00
0.75
0.50
Figure 4. Output Voltage vs. Temperature −
V
OUT
= 3.3 V
V
IN
= 4.3 to 5.5 V
V
OUT
= 3.3 V
C
IN
= 1
mF
C
OUT
= 1
mF
−10
5
20
35
50
65
80
95
0.25
0
−40 −20
0
20
40
60
80
100
120 140
T
J
, JUNCTION TEMPERATURE (°C)
T
J
, JUNCTION TEMPERATURE (°C)
Figure 5. Line Regulation vs. Temperature −
V
OUT
= 1.8 V
REG
LOAD
, LOAD REGULATION (mV)
REG
LOAD
, LOAD REGULATION (mV)
15.0
13.5
12.0
10.5
9.0
7.5
6.0
4.5
3.0
1.5
0
−40 −25
−10
5
20
35
50
65
80
95
V
IN
= 2.3 V
V
OUT
= 1.8 V
I
OUT
= 0 to 150 mA
C
IN
= 1
mF
C
OUT
= 1
mF
15.0
13.5
12.0
10.5
9.0
7.5
6.0
4.5
3.0
Figure 6. Line Regulation vs. Temperature −
V
OUT
= 3.3 V
V
IN
= 3.8 V
V
OUT
= 3.3 V
I
OUT
= 0 to 150 mA
C
IN
= 1
mF
C
OUT
= 1
mF
1.5
0
−40 −20
V
IN
= 3.8 V
V
OUT
= 1.8 V
C
IN
= 1
mF
C
OUT
= 1
mF
0
20
40
60
80
100
120 140
T
J
, JUNCTION TEMPERATURE (°C)
T
J
, JUNCTION TEMPERATURE (°C)
Figure 7. Load Regulation vs. Temperature −
V
OUT
= 1.8 V
Figure 8. Load Regulation vs. Temperature −
V
OUT
= 3.3 V
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NCP140
TYPICAL CHARACTERISTICS
47
I
GND
, GROUND CURRENT (mA)
T
J
= 85°C
T
J
= 25°C
T
J
= −40°C
I
GND
, GROUND CURRENT (mA)
46
45
44
43
42
41
40
39
38
37
0
15
30
45
60
75
90
V
IN
= 2.3 V
V
OUT
= 1.8 V
C
IN
= 1
mF
C
OUT
= 1
mF
105 120 135 150
47
46
45
44
43
42
41
40
39
38
37
0
15
30
45
60
75
90
V
IN
= 3.8 V
V
OUT
= 3.3 V
C
IN
= 1
mF
C
OUT
= 1
mF
105 120 135 150
T
J
= −40°C
T
J
= 85°C
T
J
= 25°C
T
J
, JUNCTION TEMPERATURE (°C)
T
J
, JUNCTION TEMPERATURE (°C)
Figure 9. Ground Current vs. Load Current −
V
OUT
= 1.8 V
50
I
Q
, QUIESCENT CURRENT (mA)
I
Q
, QUIESCENT CURRENT (mA)
45
40
35
30 T
J
= 85°C
25
20
15
10
5
0
0
T
J
= −40°C
1
2
3
4
T
J
= 25°C
V
IN
= 2.3 V
V
OUT
= 1.8 V
C
IN
= 1
mF
C
OUT
= 1
mF
I
OUT
= 0 mA
5
6
50
45
40
35
30
25
20
15
10
5
0
0
Figure 10. Ground Current vs. Load Current −
V
OUT
= 3.3 V
T
J
= 85°C
T
J
= −40°C
T
J
= 25°C
V
IN
= 3.8 V
V
OUT
= 3.3 V
C
IN
= 1
mF
C
OUT
= 1
mF
I
OUT
= 0 mA
1
2
3
4
5
6
V
IN
, INPUT VOLTAGE (V)
T
J
, JUNCTION TEMPERATURE (°C)
Figure 11. Quiescent Current vs. Input Voltage −
V
OUT
= 1.8 V
350
V
DROP
, DROPOUT VOLTAGE (mV)
315
280
245
210
175
140
105
70
35
0
0
15
30
45
60
75
90
105 120 135
150
I
OUT
, OUTPUT CURRENT (mA)
T
J
= −40°C
V
DROP
, DROPOUT VOLTAGE (mV)
V
OUT
= 1.8 V
C
IN
= 1
mF
C
OUT
= 1
mF
T
J
= 25°C
T
J
= 85°C
200
180
160
140
120
100
80
60
40
20
0
Figure 12. Quiescent Current vs. Input Voltage −
V
OUT
= 3.3 V
V
OUT
= 3.3 V
C
IN
= 1
mF
C
OUT
= 1
mF
T
J
= 25°C
T
J
= 85°C
T
J
= −40°C
0
15
30
45
60
75
90
105 120 135 150
I
OUT
, OUTPUT CURRENT (mA)
Figure 13. Dropout Voltage vs. Load Current −
V
OUT
= 1.8 V
Figure 14. Dropout Voltage vs. Load Current −
V
OUT
= 3.3 V
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