NCP4586
150 mA, Low Noise, Low
Dropout Regulator
The NCP4586 is a CMOS 150 mA low dropout linear with low
noise, high ripple rejection, low dropout, high output voltage accuracy
and low supply current. The device is available in three
configurations: enable high, enable low and enable high plus
auto−discharge. Small packages allow mounting on high density
PCBs. This is an excellent general purpose regulator, well suited to
many applications.
Features
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MARKING
DIAGRAMS
1
UDFN4
CASE 517BR
XX
MM
•
•
•
•
•
•
•
•
•
•
•
•
•
Operating Input Voltage Range: 1.7 V to 6.5 V
Output Voltage Range: 1.2 to 5.0 V (available in 0.1 V steps)
Very Low Dropout: 320 mV Typ. at 150 mA
±1%
Output Voltage Accuracy (V
OUT
> 2 V, T
J
= 25°C)
High PSRR: 80 dB at 1 kHz
Current Fold Back Protection
Stable with a 0.47
mF
Ceramic Capacitors
Available in 1.0 x 1.0 UDFN, SC−82AB and SOT23−5 Package
These are Pb−Free Devices
Battery Powered Equipment
Portable Communication Equipment
Cameras, MP3 Players and Camcorder
High Stability Voltage Reference
VIN
C1
470 n
1
XX
MM
SC−82AB
CASE 419C
1
Typical Applications
SOT−23−5
CASE 1212
1
XXXMM
XX, XXX= Specific Product Code
MM
= Lot Number
NCP4586x
VIN
CE
GND
VOUT
VOUT
C2
470 n
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 15 of this data sheet.
Figure 1. Typical Application Schematic
©
Semiconductor Components Industries, LLC, 2012
February, 2012
−
Rev. 5
1
Publication Order Number:
NCP4586/D
NCP4586
NCP4586Lxxxxxxxx
NCP4586Hxxxxxxxx
VIN
VOUT
VIN
VOUT
Vref
Vref
Current Limit
CE
CE
GND
Current Limit
GND
NCP4586Dxxxxxxxx
VIN
VOUT
Vref
CE
Current Limit
GND
Figure 2. Simplified Schematic Block Diagram
PIN FUNCTION DESCRIPTION
Pin No.
UDFN4
4
2
3
1
−
Pin No.
SC82−AB
4
2
1
3
−
Pin No.
SOT23−5
1
2
3
5
4
Pin Name
VIN
GND
CE/CE
VOUT
NC
Input pin
Ground
Chip enable pin (“L” active / “H” active)
Output pin
No connection
Description
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2
NCP4586
ABSOLUTE MAXIMUM RATINGS
Rating
Input Voltage (Note 1)
Output Voltage
Chip Enable Input
Output Current
Power Dissipation UDFN4
Power Dissipation SC−82AB
Power Dissipation SOT23−5
Maximum Junction Temperature
Operating Ambient Temperature
Storage Temperature
ESD Capability, Human Body Model (Note 2)
ESD Capability, Machine Model (Note 2)
T
J(MAX)
T
A
T
STG
ESD
HBM
ESD
MM
Symbol
V
IN
V
OUT
V
CE
I
OUT
P
D
Value
7
−0.3
to V
IN
+ 0.3
−0.3
to 7
200
400
380
420
+150
−40
to +85
−55
to +125
2000
200
°C
°C
°C
V
V
mW
Unit
V
V
V
mA
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. 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.
THERMAL CHARACTERISTICS
Rating
Thermal Characteristics, UDFN4
Thermal Resistance, Junction−to−Air
Thermal Characteristics, SOT23−5
Thermal Resistance, Junction−to−Air
Thermal Characteristics, SC 82AB
Thermal Resistance, Junction−to−Air
Symbol
R
qJA
R
qJA
R
qJA
Value
250
238
263
Unit
°C/W
°C/W
°C/W
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3
NCP4586
ELECTRICAL CHARACTERISTICS
−40°C
≤
T
A
≤
85°C; V
IN
= V
OUT(NOM)
+ 1 V or 2.5 V, whichever is greater; I
OUT
= 1 mA, C
IN
=
C
OUT
= 0.47
mF,
unless otherwise noted. Typical values are at T
A
= +25
°C.
Parameter
Operating Input Voltage
Output Voltage
T
A
= +25
°C
V
OUT
> 2 V
V
OUT
≤
2 V
−40°C
≤
T
A
≤
85°C
V
OUT
> 2 V
V
OUT
≤
2 V
Output Voltage Temp. Coefficient
Line Regulation
Load Regulation
Dropout Voltage
T
A
=
−40
to 85°C
V
IN
= V
OUT
+ 0.5 V to 5 V
I
OUT
= 1 mA to 150 mA
I
OUT
= 150 mA
1.2 V
≤
V
OUT
< 1.5 V
1.5 V
≤
V
OUT
< 1.7 V
1.7 V
≤
V
OUT
< 2.0 V
2.0 V
≤
V
OUT
< 2.5 V
2.5 V
≤
V
OUT
< 4.0 V
4.0 V
≤
V
OUT
Output Current
Short Current Limit
Quiescent Current
Standby Current
CE/CE Pin Threshold Voltage
V
OUT
= 0 V
I
OUT
= 0 mA
V
CE
= V
IN
(L version), V
CE
= 0 V(H and
D version), T
A
= 25°C
CE / CE Input Voltage “H”
CE / CE Input Voltage “L”
CE Pull Down Current
Power Supply Rejection Ratio
Output Noise Voltage
Low Output N−ch Tr. On
Resistance
H and D version
V
IN
= V
OUT
+ 1 V or 3.0 V whichever is higher,
I
OUT
= 30 mA, f = 1 kHz
V
OUT
= 1.2 V, I
OUT
= 30 mA, f = 10 Hz to
100 kHz
D Version only, V
IN
= 4 V, V
CE
= 0 V
I
OUT
I
SC
I
Q
I
STB
V
CEH
V
CEL
I
PD
PSRR
V
N
R
LOW
0.4
80
30
30
1.0
0.4
mA
dB
mV
rms
W
150
40
38
0.1
58
1
Line
Reg
Load
Reg
V
DO
Test Conditions
Symbol
V
IN
V
OUT
Min
1.7
x0.99
−20
x0.985
−30
±20
0.02
10
0.67
0.54
0.46
0.41
0.32
0.24
0.10
30
1.00
0.81
0.68
0.60
0.51
0.37
mA
mA
mA
mA
V
Typ
Max
6.5
x1.01
20
x1.015
30
Unit
V
V
mV
V
mV
ppm/°C
%/V
mV
V
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4
NCP4586
TYPICAL CHARACTERISTICS
1.4
1.2
1.0
V
OUT
(V)
0.8
0.6
0.4
0.2
0.0
0
100
200
300
I
OUT
(mA)
400
500
V
IN
= 2.2 V
6.0 V
6.5 V
3.6 V
4.2 V
V
OUT
(V)
3.0
2.5
2.0
1.5
1.0
0.5
0.0
4.2 V
6.0 V
V
IN
= 6.5 V
3.8 V
0
100
200
300
I
OUT
(mA)
400
500
Figure 3. Output Voltage vs. Output Current
1.2 V Version (T
A
= 25
5C)
6
5
4
V
OUT
(V)
3
2
1
0
0
V
IN
= 6.5 V
6.0 V
V
DO
(V)
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
100
200
I
OUT
(mA)
300
400
500
0
0
Figure 4. Output Voltage vs. Output Current
2.8 V Version (T
A
= 25
5C)
25°C
85°C
−40°C
100
200
300
400
500
I
OUT
(mA)
Figure 5. Output Voltage vs. Output Current
5.0 V version (T
A
= 255C)
Figure 6. Dropout Voltage vs. Output Current
1.2 V version
0.40
0.35
0.30
V
DO
(V)
0.25
0.20
0.15
0.10
0.05
0.00
0
100
200
I
OUT
(mA)
300
400
500
85°C
−40°C
V
DO
(V)
25°C
0.30
0.25
0.20
0.15
85°C
0.10
0.05
0.00
0
25
50
75
I
OUT
(mA)
100
125
150
−40°C
25°C
Figure 7. Dropout Voltage vs. Output Current
2.8 V Version
Figure 8. Dropout Voltage vs. Output Current
5.0 V Version
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5
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