NCP186
Fast Transient Response
Low Voltage 1 A LDO
The NCP186x series are CMOS LDO regulators featuring 1 A
output current. The input voltage is as low as 1.8 V and the output
voltage can be set from 0.8 V.
Features
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MARKING
DIAGRAMS
XDFN8
MX SUFFIX
CASE 711AS
XX = Specific Device Code
M = Date Code
G
= Pb−Free Package
(Note: Microdot may be in either location)
DFN12
MU SUFFIX
CASE 506CE
XXXXXX
XXXXXX
ALYWG
G
XXMG
G
•
•
•
•
•
•
•
•
•
•
•
Operating Input Voltage Range: 1.8 V to 5.5 V
Output Voltage Range: 0.8 to 3.9 V
Fixed or Adjustable Output Voltage Applications
Quiescent Current typ. 90
mA
Low Dropout: 100 mV typ. at 1 A, V
OUT
= 3.0 V
High Output Voltage Accuracy
±1%
Stable with Small 1
mF
Ceramic Capacitors
Over−current Protection
Built−in Soft Start Circuit to Suppress Inrush Current
Thermal Shutdown Protection: 165°C
With (NCP186A) and Without (NCP186B) Output Discharge
Function
•
Available in XDFN8 1.2x1.6mm & DFN12 4x4mm Packages
•
These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
Typical Applications
1
•
Battery Powered Equipment
•
Portable Communication Equipment
•
Cameras, Image Sensors and Camcorders
Fixed Output Voltage Application
V
IN
IN
OUT
C
IN
V
OUT
=0.8V
C
OUT
XXXXXX = Specific Device Code
A
= Assembly Location
L
= Wafer Lot
Y
= Year
W
= Work Week
G
= Pb−Free Package
(Note: Microdot may be in either location)
PIN CONNECTIONS
OUT
OUT
N/C
FB/ADJ
1
2
3
4
(Top View)
8 IN
7 IN
6 EN
5 GND
1
mF
NCP186 0.8V
ON
1
mF
EN
OFF
GND
FB/
ADJ
Adjustable Output Voltage Application
V
IN
IN
OUT
R
1
5k1
0.8V
R
2
10k
C
1
1 nF
C
OUT
C
IN
V
OUT−ADJ
=1.2V
N/C 1
OUT 2
OUT 3
N/C 4
FB/ADJ 5
N/C 6
(Top View)
12 N/C
11 IN
10 IN
9 EN
8 GND
7 N/C
1
mF
NCP186 0.8V
ON
1
mF
EN
OFF
GND
FB/
ADJ
R
R
V
OUT−ADJ
+
V
OUT−NOM
@
1
)
1
+
0.8
@
1
)
1
R
2
R
2
Set I
R1
, I
R2
in range from 10
mA
to 100
mA
Figure 1. Typical Application Schematic
ORDERING INFORMATION
See detailed ordering and shipping information on page 12 of
this data sheet.
This document contains information on some products that are still under development.
ON Semiconductor reserves the right to change or discontinue these products without
notice.
©
Semiconductor Components Industries, LLC, 2015
September, 2018
−
Rev. 5
1
Publication Order Number:
NCP186/D
NCP186
IN
PROG. VOLTAGE
REFERENCE AND
SOFT−START
OUT
IN
PROG. VOLTAGE
REFERENCE AND
SOFT−START
OUT
FB/ADJ
FB/ADJ
EN
0.7 V
EN
0.7 V
THERMAL
SHUTDOWN
GND
THERMAL
SHUTDOWN
GND
NCP186A (with output active discharge)
NCP186B (without output active discharge)
Figure 2. Internal Block Diagram
Table 1. PIN FUNCTION DESCRIPTION
Pin No.
XDFN8
1, 2
3
4
5
6
7, 8
EPAD
Pin No.
DFN12
2, 3
1,4,6,7,12
5
8
9
10, 11
EPAD
Pin
Name
OUT
N/C
FB/ADJ
GND
EN
IN
EPAD
LDO output pin
Tune the space here, this line is not horizontally aligned with others. Not internally connected.
This pin can be tied to the ground plane to improve thermal dissipation.
Feedback / adjustable input pin (connect this pin directly to the OUT pin or to the resistor di-
vider)
Ground pin
Chip enable input pin (active “H”)
Power supply input pin
It’s recommended to connect the EPAD to GND, but leaving it open is also acceptable
Description
Table 2. ABSOLUTE MAXIMUM RATINGS
Rating
Input Voltage (Note 1)
Output Voltage
Chip Enable Input
Output Current
Maximum Junction Temperature
Storage Temperature
ESD Capability, Human Body Model (Note 2)
ESD Capability, Machine Model (Note 2)
Symbol
IN
OUT
EN
I
OUT
T
J(MAX)
T
STG
ESD
HBM
ESD
MM
Value
−0.3
to 6.0
−0.3
to V
IN
+ 0.3
−0.3
to 6.0
Internally Limited
150
−55
to 150
2000
200
Unit
V
V
V
mA
°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 AEC−Q100−002 (EIA/JESD22−A114)
ESD Machine Model tested per AEC−Q100−003 (EIA/JESD22−A115)
Latchup Current Maximum Rating tested per JEDEC standard: JESD78
Table 3. THERMAL CHARACTERISTICS
Rating
Thermal Resistance, Junction−to−Air, XDFN8 1.2 mm x 1.6 mm
Thermal Resistance, Junction−to−Air, DFN12 4 mm x 4 mm
Symbol
R
qJA
R
qJA
Value
111
44
Unit
°C/W
°C/W
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2
NCP186
Table 4. ELECTRICAL CHARACTERISTICS
V
IN
= V
OUT_NOM
+ 0.5 V or V
IN
= 1.8 V whichever is greater; I
OUT
= 1 mA; C
IN
= C
OUT
= 1.0
mF
(effective capacitance) (Note 3);
V
EN
= 1.2 V; T
J
= 25°C (Note 4); FB/ADJ pin connected to OUT; unless otherwise noted. The specifications in bold are guaranteed at
−40°C
≤
T
J
≤
125°C.
Parameter
Operating Input Voltage
Output Voltage Accuracy
V
OUT_NOM
+ 0.5 V
≤
V
IN
≤
5.5 V,
I
OUT
= 0 to 1 A,
−40°C
≤
T
J
≤
85°C
V
OUT_NOM
+ 0.5 V
≤
V
IN
≤
5.5 V,
I
OUT
= 0 to 1 A,
−40°C
≤
T
J
≤
125°C
Load Regulation
Line Regulation
Dropout Voltage
I
OUT
= 1 mA to 1000 mA
V
IN
= V
OUT_NOM
+ 0.5 V to 5.0 V
XDFN8 1.2x1.6
I
OUT
= 1 A
When V
OUT
falls to
V
OUT_NOM
– 100 mV
V
OUT_NOM
= 1.2 V
V
OUT_NOM
= 1.75 V
V
OUT_NOM
= 1.8 V
V
OUT_NOM
= 1.85 V
V
OUT_NOM
= 2.5 V
V
OUT_NOM
= 2.8 V
V
OUT_NOM
= 2.95 V
V
OUT_NOM
= 3.0 V
V
OUT_NOM
= 3.3 V
V
OUT_NOM
= 3.5 V
V
OUT_NOM
= 3.9 V
Dropout Voltage
DFN12 4x4
I
OUT
= 1 A
When V
OUT
falls to
V
OUT_NOM
– 100 mV
Quiescent Current
Standby Current
FB/ADJ Pin Input Current
Output Current Limit
Output Short Circuit Current
Enable Input Current
Enable Threshold Voltage
EN Input Voltage “H”
EN Input Voltage “L”
Power Supply Rejection Ratio
Output Noise
Output Discharge Resistance
(NCP186A option only)
Thermal Shutdown
Temperature
Thermal Shutdown Hysteresis
V
IN
= V
OUT_NOM
+ 1.0 V, Ripple 0.2 Vp−p,
I
OUT
= 30 mA, f = 1 kHz
f = 10 Hz to 100 kHz
V
IN
= 5.5 V, V
EN
= 0 V, V
OUT
= 1.8 V
Temperature rising from T
J
= +25°C
Temperature falling from T
SD
V
OUT
= 90% of V
OUT_NOM
V
OUT
= 0 V
I
OUT
= 0 mA
V
EN
= 0 V
I
Q
I
STBY
I
FB/ADJ
I
OCL
I
OSC
I
EN
V
ENH
V
ENL
PSRR
V
N
R
AD
T
SD
T
SDH
75
48
34
165
20
1.0
0.4
dB
mV
RMS
W
°C
°C
1100
1100
90
0.1
10
1400
1400
0.15
0.6
140
1.5
mA
mA
nA
mA
mA
mA
V
V
OUT_NOM
= 0.8 V
V
DO
LoadReg
LineReg
V
DO
Test Conditions
Symbol
V
IN
V
OUT−NOM
Min
1.8
−1.0
−2.0
0.7
0.002
405
180
175
170
120
110
102
100
95
92
86
TBD
Typ
Max
5.5
1.0
1.0
5.0
0.1
585
295
285
280
190
170
163
160
145
135
130
TBD
mV
mV
%/V
mV
Unit
V
%
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.
3. Effective capacitance, including the effect of DC bias, tolerance and temperature. See the Application Information section for more
information.
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.
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3
NCP186
TYPICAL CHARACTERISTICS
V
IN
= V
OUT−NOM
+ 0.5 V or V
IN
= 1.8 V, whichever is greater, V
EN
= 1.2 V, I
OUT
= 1 mA, C
IN
= C
OUT
= 1.0
mF,
T
J
= 25°C.
1.212
1.209
1.206
OUTPUT VOLTAGE (V)
1.203
1.200
1.197
1.194
1.191
1.188
1.185
1.182
1.179
1.176
−40
V
OUT−NOM
= 1.2 V
−20
0
20
40
60
80
100
120
OUTPUT VOLTAGE (V)
1.814
1.809
1.804
1.799
1.794
1.789
1.784
1.779
1.774
1.769
1.764
−40
V
OUT−NOM
= 1.8 V
−20
0
20
40
60
80
100
120
TEMPERATURE (°C)
TEMPERATURE (°C)
Figure 3. Output Voltage vs. Temperature
Figure 4. Output Voltage vs. Temperature
3.324
OUTPUT VOLTAGE (V)
3.304
3.294
3.284
3.274
3.264
3.254
3.244
3.234
−40
−20
0
20
40
60
80
100
120
V
OUT−NOM
= 3.3 V
OUTPUT VOLTAGE (V)
3.314
3.932
3.922
3.912
3.902
3.892
3.882
3.872
3.862
3.852
3.842
3.832
3.822
−40
V
OUT−NOM
= 3.9 V
−20
0
20
40
60
80
100
120
TEMPERATURE (°C)
TEMPERATURE (°C)
Figure 5. Output Voltage vs. Temperature
0.10
0.08
LINE REGULATION (%/V)
0.06
0.04
0.02
0
−0.02
−0.04
−0.06
V
IN
= V
OUT−NOM
+ 0.5 V to 5.0 V, V
IN
≥
1.8 V
−0.08
−0.10
−40 −20
0
20
40
60
80
100 120
TEMPERATURE (°C)
5
4
LOAD REGULATION (mV)
3
2
1
0
−1
−2
−3
−4
−5
−40
Figure 6. Output Voltage vs. Temperature
V
OUT−NOM
= 1.2 V
V
OUT−NOM
= 1.8 V
V
OUT−NOM
= 3.3 V
V
OUT−NOM
= 3.9 V
V
OUT−NOM
= 1.2 V
V
OUT−NOM
= 1.8 V
V
OUT−NOM
= 3.3 V
V
OUT−NOM
= 3.9 V
I
OUT
= 1 mA to 1000 mA
−20
0
20
40
60
80
100
120
TEMPERATURE (°C)
Figure 7. Line Regulation vs. Temperature
Figure 8. Load Regulation vs. Temperature
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NCP186
TYPICAL CHARACTERISTICS
V
IN
= V
OUT−NOM
+ 0.5 V or V
IN
= 1.8 V, whichever is greater, V
EN
= 1.2 V, I
OUT
= 1 mA, C
IN
= C
OUT
= 1.0
mF,
T
J
= 25°C.
275
250
DROPOUT VOLTAGE (mV)
225
200
175
150
125
100
75
50
25
0
T
J
=
−40°C
V
OUT−NOM
= 1.8 V
DROPOUT VOLTAGE (mV)
XDFN8 (AMX/BMX)
T
J
= 25°C
T
J
= 125°C
275
250
225
200
175
150
125
100
75
50
25
0
−40
I
OUT
= 200 mA
I
OUT
= 10 mA
100 120
80
I
OUT
= 500 mA
V
OUT−NOM
= 1.8 V
XDFN8 (AMX/BMX)
I
OUT
= 1000 mA
0
200
400
600
800
1000
−20
0
20
40
60
OUTPUT CURRENT (mA)
TEMPERATURE (°C)
Figure 9. Dropout Voltage vs. Output Current
Figure 10. Dropout Voltage vs. Temperature
140
DROPOUT VOLTAGE (mV)
120
100
80
60
40
20
0
0
200
400
600
V
OUT−NOM
= 3.3 V
XDFN8 (AMX/BMX)
T
J
= 25°C
T
J
= 125°C
DROPOUT VOLTAGE (mV)
140
120
100
80
60
40
20
V
OUT−NOM
= 3.3 V
XDFN8 (AMX/BMX)
I
OUT
= 1000 mA
I
OUT
= 500 mA
T
J
=
−40°C
I
OUT
= 200 mA
I
OUT
= 10 mA
−20
0
20
40
60
80
100
120
800
1000
0
−40
OUTPUT CURRENT (mA)
TEMPERATURE (°C)
Figure 11. Dropout Voltage vs. Output Current
450
400
GROUND CURRENT (mA)
350
300
250
200
150
100
50
0
0
200
400
600
V
OUT−NOM
= 1.8 V
800
1000
T
J
=
−40°C
T
J
= 25°C
120
QUIESCENT CURRENT (mA)
110
100
90
80
70
60
−40
Figure 12. Dropout Voltage vs. Temperature
T
J
= 125°C
V
OUT−NOM
= 1.2 V
V
OUT−NOM
= 1.8 V
V
OUT−NOM
= 3.3 V
V
OUT−NOM
= 3.9 V
I
OUT
= 0 mA
−20
0
20
40
60
80
100
120
OUTPUT CURRENT (mA)
TEMPERATURE (°C)
Figure 13. Ground Current vs. Output Current
Figure 14. Quiescent Current vs. Temperature
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