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 1.2 V.
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Features
•
•
•
•
•
•
•
•
•
•
Operating Input Voltage Range: 1.8 V to 5.5 V
Output Voltage Range: 1.2 to 3.9 V
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 Small xDFN8 1.2 x 1.6 mm Package
•
These are Pb−free Devices
Typical Applications
XDFN8
MX SUFFIX
CASE 711AS
PIN CONNECTIONS
OUT
OUT
N/C
FB
1
2
3
4
(Top View)
8
7
6
5
IN
IN
EN
GND
•
Battery Powered Equipment
•
Portable Communication Equipment
•
Cameras, Image Sensors and Camcorders
V
IN
IN
C
IN
1
mF
ON
MARKING DIAGRAM
V
OUT
OUT
NCP186
EN
GND
FB
C
OUT
1
mF
XXMG
G
XX = Specific Device Code
M = Date Code
G
= Pb−Free Package
(Note: Microdot may be in either location)
OFF
Figure 1. Typical Application Schematic
ORDERING INFORMATION
See detailed ordering and shipping information in the ordering
information section on page 4 of this data sheet.
©
Semiconductor Components Industries, LLC, 2015
1
September, 2017 − Rev. 1
Publication Order Number:
NCP186/D
NCP186
IN
VOLTAGE REFERENCE
AND
SOFT−START
OUT
FB
IN
VOLTAGE REFERENCE
AND
SOFT−START
OUT
FB
EN
0.7 V
THERMAL
SHUTDOWN
EN
0.7 V
GND
THERMAL
SHUTDOWN
GND
NCP186A (with output discharge)
NCP186B (without output discharge)
Figure 2. Internal Block Diagram
Table 1. PIN FUNCTION DESCRIPTION
Pin No. XDFN6
1
2
3
4
5
6
7
8
EPAD
EPAD
It’s recommended to connect the EPAD to GND, but leaving it open is also acceptable
N/C
FB
GND
EN
IN
Not internally connected. This pin can be tied to the ground plane to improve thermal dissipation.
Feedback input pin
Ground pin
Chip enable input pin (active “H”)
Power supply input pin
Pin Name
OUT
Description
LDO output pin
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 CHARACTERISTIS 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
Symbol
R
qJA
Value
111
Unit
°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; unless otherwise noted. The specifications in bold are guaranteed at −40°C
≤
T
J
≤
125°C.
Parameter
Operating Input Voltage
Output Voltage
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
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
= 3.0 V
V
OUT_NOM
= 3.3 V
V
OUT_NOM
= 3.5 V
V
OUT_NOM
= 3.9 V
Quiescent Current
Standby 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
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
I
OUT
= 0 mA
V
EN
= 0 V
V
OUT
= 90% of V
OUT_NOM
V
OUT
= 0 V
I
Q
I
STBY
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
LoadReg
LineReg
V
DO
Test Conditions
Symbol
V
IN
V
OUT
Min
1.8
−1.0
−2.0
0.7
0.002
405
180
175
170
120
110
100
95
92
86
90
0.1
1400
1400
0.15
0.6
Typ
Max
5.5
1.0
1.0
5.0
0.1
585
295
285
280
190
170
160
145
135
130
140
1.5
mA
mA
mA
mA
mA
V
mV
%/V
mV
Unit
V
%
Thermal Shutdown Hysteresis Temperature falling from T
SD
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.
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3
NCP186
ORDERING INFORMATION TABLE
Part Number
NCP186AMX120TAG
NCP186AMX150TAG
NCP186AMX175TAG
NCP186AMX180TAG
NCP186AMX185TAG
NCP186AMX250TAG
NCP186AMX280TAG
NCP186AMX300TAG
NCP186AMX330TAG
NCP186AMX350TAG
NCP186AMX390TAG
NCP186BMX120TAG
NCP186BMX150TAG
NCP186BMX175TAG
NCP186BMX180TAG
NCP186BMX185TAG
NCP186BMX250TAG
NCP186BMX280TAG
NCP186BMX300TAG
NCP186BMX330TAG
NCP186BMX350TAG
NCP186BMX390TAG
Voltage
Option
1.2 V
1.5 V
1.75 V
1.8 V
1.85 V
2.5 V
2.8 V
3.0 V
3.3 V
3.5 V
3.9 V
1.2 V
1.5 V
1.75 V
1.8 V
1.85 V
2.5 V
2.8 V
3.0 V
3.3 V
3.5 V
3.9 V
Marking
FA
FN
FC
FD
FL
FE
FF
FG
FH
FJ
FK
HA
HN
HC
HD
HL
HE
HF
HG
HH
HJ
HK
Option
With active discharge
With active discharge
With active discharge
With active discharge
With active discharge
With active discharge
With active discharge
With active discharge
With active discharge
With active discharge
With active discharge
Without active discharge
Without active discharge
Without active discharge
Without active discharge
Without active discharge
Without active discharge
Without active discharge
Without active discharge
Without active discharge
Without active discharge
Without active discharge
XDFN8
(Pb−Free)
3000/Tape&Reel
XDFN8
(Pb−Free)
3000/Tape&Reel
Package
Shipping
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4
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
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
−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)
OUTPUT VOLTAGE (V)
3.314
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
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
100 120
−40 −20
0
20
40
60
80
TEMPERATURE (°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
Figure 6. Output Voltage vs. Temperature
5
4
LOAD REGULATION (mV)
3
2
1
0
−1
−2
−3
−4
−5
−40
I
OUT
= 1 mA to 1000 mA
V
OUT−NOM
= 1.2 V
V
OUT−NOM
= 1.8 V
V
OUT−NOM
= 3.3 V
V
OUT−NOM
= 3.9 V
−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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Microchip MCU
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