NCP582
Ultra-Fast, Low Noise
150 mA CMOS LDO
Regulator with Enable
The NCP582 series of low dropout regulators are designed for
portable battery powered applications which require precise output
voltage accuracy, low quiescent current, and high ripple rejection.
These devices feature an enable function and are offered in active
low and active high with auto discharge.
The following ceramic capacitors are the recommended values to
be used with these devices; for V
out
< 2.5 V, C
in
= C
out
= 1.0
mF,
V
out
w
2.5 V, C
in
= C
out
= 0.47
mF.
Features
4
1
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MARKING
DIAGRAMS
SC−82AB
SQ SUFFIX
CASE 419C
1
•
•
•
•
•
•
•
•
•
•
•
•
Ultra−Low Dropout Voltage of 220 mV at 150 mA
Low Output Noise of 30
mVrms
without Noise Reduction Cap
Excellent Line Regulation of 0.02%/V
Excellent Load Regulation of 22 mV
High Output Voltage Accuracy of
"2%
Low Iq Current of 75
mA
Very Low Shutdown Current
Excellent Power Supply Rejection Ratio of 70 dB at f = 1.0 kHz
Wide Output Voltage Range of 1.5 V to 3.3 V
Fast Dynamic Performance
Fold Back Protection Circuit
Low Temperature Drift Coefficient on the Output Voltage of
"100
ppm/°C
•
Input Voltage up to 6.5 V
•
These are Pb−Free Devices
Typical Applications
6
1
X
T
SOT−563
XV SUFFIX
CASE 463A
1
= Device Code
= Traceability Information
XXX
XTT
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 10 of this data sheet.
•
Portable Equipment
•
Hand−Held Instrumentation
•
Camcorders and Cameras
V
in
V
out
V
in
V
out
-
+
V
ref
Current Limit
CE
GND
CE
V
ref
-
+
Current Limit
GND
Figure 1. Simplified Block Diagram
for Active Low
©
Semiconductor Components Industries, LLC, 2009
Figure 2. Simplified Block Diagram
for Active High with Auto Discharge
1
Publication Order Number:
NCP582/D
May, 2009
−
Rev. 10
XX
TT
NCP582
PIN FUNCTION DESCRIPTION
SOT−563 Pin
1
2
3
4
5
6
SC−82AB Pin
4
2
3
−
−
1
Symbol
Vin
GND
Vout
NC
GND
CE or CE
Power supply inout voltage.
Power supply ground.
Regulated output voltage.
No connect.
Power supply ground.
Chip enable pin.
Description
MAXIMUM RATINGS
Rating
Input Voltage
Input Voltage (CE or CE Pin)
Output Voltage
Output Current
Power Dissipation
SC−82AB
SOT−563
ESD Capability, Human Body Model, C = 100 pF, R = 1.5 kW
ESD Capability, Machine Model, C = 200 pF, R = 0
W
Operating Ambient Temperature Range
Maximum Junction Temperature
Storage Temperature Range
Symbol
V
in
V
CE
V
out
I
out
P
D
Value
6.5
−0.3
to V
in
+0.3
−0.3
to V
in
+0.3
200
150
500
2000
200
−40
to +85
125
−55
to +150
Unit
V
V
V
mA
mW
ESD
HBM
ESD
MM
T
A
T
J(max)
T
stg
V
V
°C
°C
°C
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.
ELECTRICAL CHARACTERISTICS
(V
in
= V
out
+ 1.0 V, T
A
= 25°C, unless otherwise noted.)
Characteristic
Input Voltage
Output Voltage (I
out
= 1.0 mA to 30 mA)
Line Regulation (I
out
= 30 mA),
(V
out
> 1.7 V; V
out
+ 0.5 V
v
V
in
v
6.0 V)
(V
out
= 1.5 V; 2.2 V
v
V
in
v
6.0 V)
Symbol
V
in
V
out
Reg
line
Reg
load
V
DO
Min
2.0
V
out
X 0.980
−
−
−
−
−
−
−
150
−
−
Typ
−
−
0.02
22
0.38
0.32
0.28
0.22
75
−
0.1
40
Max
6.0
V
out
X 1.020
0.10
40
0.70
0.55
0.50
0.35
95
−
1.0
−
Unit
V
V
%/V
mV
V
Load Regulation (I
out
= 1.0 mA to 150 mA)
Dropout Voltage (I
out
= 150 mA)
V
out
= 1.5 V
V
out
= 1.8 V
V
out
= 2.5 V
2.8 V
v
V
out
v
3.3 V
Quiescent Current (I
out
= 0 mA)
Output Current
Shutdown Current (V
CE
= Gnd for Active High with Auto Discharge)
(V
CE
= V
in
for Active Low)
Output Short Circuit Current (V
out
= 0)
Ripple Rejection (I
out
= 30 mA)
(V
out
> 1.7 V; V
in
– V
out
= 1.0 V)
(V
out
= 1.5 V; V
in
– V
out
= 1.2 V)
f = 1.0 kHz
f = 10 kHz
High
Low
Iq
I
out
I
SD
I
lim
RR
mA
mA
mA
mA
dB
−
−
Vth
enh
Vth
enl
V
n
DV
out
/DT
R
Low
1.5
0
−
−
−
70
60
−
−
30
"100
60
−
−
V
in
0.3
−
−
−
V
mVrms
ppm/°C
W
Enable Input Threshold Voltage
Output Noise Voltage (Bandwidth = 10 Hz to 100 kHz)
Output Voltage Temperature Coefficient (I
out
= 30 mA,
−40°C
v
T
A
v
85°C)
N−Channel On Resistance for Auto Discharge
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2
NCP582
TYPICAL CHARACTERISTICS
1.6
OUTPUT VOLTAGE V
out
(V)
OUTPUT VOLTAGE V
out
(V)
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
0
100
200
2.0 V
V
out
= 1.5 V
300
400
V
in
= 3.5 V
2.5 V
1.8 V
3.0
2.5
2.0
1.5
1.0
0.5
0
3.8 V
3.5 V
3.1 V
V
in
= 4.8 V
V
out
= 2.8 V
0
100
200
300
400
OUTPUT CURRENT I
out
(mA)
OUTPUT CURRENT I
out
(mA)
Figure 3. Output Voltage vs. Output Current
Figure 4. Output Voltage vs. Output Current
1.7
OUTPUT VOLTAGE V
out
(V)
OUTPUT VOLTAGE V
out
(V)
1.6
1.5
1.4
1.3
1.2
1.1
1.0
1.0
2.0
3.0
4.0
I
out
= 1.0 mA
I
out
= 30 mA
I
out
= 50 mA
V
out
= 1.5 V
5.0
6.0
2.9
2.8
2.7
2.6
2.5
2.4
2.3
2.2
2.1
2.0
2.0
3.0
4.0
INPUT VOLTAGE V
in
(V)
V
out
= 2.8 V
5.0
6.0
I
out
= 1.0 mA
I
out
= 30 mA
I
out
= 50 mA
INPUT VOLTAGE V
in
(V)
Figure 5. Output Voltage vs. Input Voltage
Figure 6. Output Voltage vs. Input Voltage
90
QUIESCENT CURRENT, I
q
(mA)
QUIESCENT CURRENT, I
q
(mA)
80
70
60
50
40
30
20
10
0
0
1.0
2.0
3.0
4.0
V
out
= 1.5 V
5.0
6.0
90
80
70
60
50
40
30
20
10
0
0
1.0
2.0
3.0
4.0
V
out
= 2.8 V
5.0
6.0
INPUT VOLTAGE V
in
(V)
INPUT VOLTAGE V
in
(V)
Figure 7. Quiescent Current vs. Input Voltage
Figure 8. Quiescent Current vs. Input Voltage
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NCP582
TYPICAL CHARACTERISTICS
1.53
OUTPUT VOLTAGE, V
out
(V)
OUTPUT VOLTAGE, V
out
(V)
1.52
1.51
1.50
1.49
1.48
1.47
1.46
−40
−15
10
35
V
out
= 1.5 V
60
85
2.86
2.84
2.82
2.80
2.78
2.76
V
out
= 2.8 V
2.74
−40
−15
10
35
60
85
TEMPERATURE (°C)
TEMPERATURE (°C)
Figure 9. Output Voltage vs. Temperature
90
QUIESCENT CURRENT, I
q
(mA)
QUIESCENT CURRENT, I
q
(mA)
80
70
60
50
40
30
20
10
0
−40
−15
10
35
V
out
= 1.5 V
60
85
90
80
70
60
50
40
30
20
10
0
−40
Figure 10. Output Voltage vs. Temperature
V
out
= 2.8 V
−15
10
35
60
85
TEMPERATURE (°C)
TEMPERATURE (°C)
Figure 11. Quiescent Current vs. Temperature
Figure 12. Quiescent Current vs. Temperature
0.6
DROPOUT VOLTAGE, V
DO
(V)
0.5
0.4
0.3
0.2
0.1
V
out
= 1.5 V
0.0
0
25
50
75
100
125
150
25°C
85°C
DROPOUT VOLTAGE, V
DO
(V)
0.6
0.5
0.4
85°C
0.3
0.2
−40°C
0.1
V
out
= 1.8 V
0.0
0
25
50
75
100
125
150
25°C
−40°C
OUTPUT CURRENT I
out
(mA)
OUTPUT CURRENT I
out
(mA)
Figure 13. Dropout Voltage vs. Output Current
Figure 14. Dropout Voltage vs. Output Current
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NCP582
TYPICAL CHARACTERISTICS
0.40
DROPOUT VOLTAGE, V
DO
(V)
RIPPLE REJECTION, RR (dB)
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0.00
0
25
50
75
100
−40°C
V
out
= 2.8 V
125
150
25°C
85°C
90
80
70
60
50
40
30
20
10
0
0.1
V
in
= 2.5 Vdc + 0.5 Vp−p
C
out
= Ceramic 1.0
mF
1
10
I
out
= 50 mA
I
out
= 30 mA
I
out
= 1 mA
V
out
= 1.5 V
100
OUTPUT CURRENT I
out
(mA)
FREQUENCY, f (kHz)
Figure 15. Dropout Voltage vs. Output Current
Figure 16. Ripple Rejection vs. Frequency
90
RIPPLE REJECTION, RR (dB)
80
70
I
out
= 1 mA
RIPPLE REJECTION, RR (dB)
90
80
70
60
50
40
30
20
10
0
0.1
I
out
= 30 mA
I
out
= 1 mA
60 I
out
= 30 mA
50
40
30
20
10
0
0.1
I
out
= 50 mA
I
out
= 50 mA
V
in
= 2.5 Vdc + 0.5 Vp−p
C
out
= Ceramic 2.2
mF
1
10
V
out
= 1.5 V
100
V
in
= 3.8 Vdc + 0.5 Vp−p
C
out
= Ceramic 0.47
mF
1
10
V
out
= 2.8 V
100
FREQUENCY, f (kHz)
FREQUENCY, f (kHz)
Figure 17. Ripple Rejection vs. Frequency
Figure 18. Ripple Rejection vs. Frequency
90
RIPPLE REJECTION, RR (dB)
80
70
60
50
40
30
20
10
0
0.1
I
out
= 30 mA
I
out
= 1 mA
I
out
= 50 mA
V
in
= 3.8 Vdc + 0.5 Vp−p
C
out
= Ceramic 1.0
mF
1
10
V
out
= 2.8 V
100
FREQUENCY, f (kHz)
Figure 19. Ripple Rejection vs. Frequency
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