NCP511
150 mA CMOS Low Iq
Low-Dropout Voltage
Regulator
The NCP511 series of fixed output low dropout linear regulators are
designed for handheld communication equipment and portable battery
powered applications which require low quiescent current. The
NCP511 series features an ultra−low quiescent current of 40
mA.
Each
device contains a voltage reference unit, an error amplifier, a PMOS
power transistor, resistors for setting output voltage, current limit, and
temperature limit protection circuits.
The NCP511 has been designed to be used with low cost ceramic
capacitors and requires a minimum output capacitor of 1.0
mF.
The
device is housed in the micro−miniature TSOP−5 surface mount
package. Standard voltage versions are 1.5 V, 1.8 V, 2.5 V, 2.7 V, 2.8 V,
3.0 V, 3.3 V, and 5.0 V. Other voltages are available in 100 mV steps.
Features
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TSOP−5
SN SUFFIX
CASE 483
PIN CONNECTIONS AND
MARKING DIAGRAM
Low Quiescent Current of 40
mA
Typical
Low Dropout Voltage of 100 mV at 100 mA
Excellent Line and Load Regulation
Maximum Operating Voltage of 6.0 V
Low Output Voltage Option
High Accuracy Output Voltage of 2.0%
Industrial Temperature Range of
−40C
to 85C
These are Pb−Free Devices
Cellular Phones
Battery Powered Instruments
Hand−Held Instruments
Camcorders and Cameras
V
in
1
Thermal
Shutdown
Enable
ON
3
Driver w/
Current
Limit
5
V
out
V
in
GND
Enable
1
xxxAYWG
G
(Top View)
2
3
5
V
out
4
N/C
Typical Applications
xxx
A
Y
W
G
= Specific Device Code
= Assembly Location
= Year
= Work Week
= Pb−Free Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 10 of this data sheet.
OFF
GND
2
This device contains 82 active transistors
Figure 1. Representative Block Diagram
Semiconductor Components Industries, LLC, 2013
May, 2013
−
Rev. 12
1
Publication Order Number:
NCP511/D
NCP511
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PIN FUNCTION DESCRIPTION
Pin No.
1
2
3
4
5
Pin Name
V
in
Description
Positive power supply input voltage.
Power supply ground.
GND
Enable
N/C
This input is used to place the device into low−power standby. When this input is pulled low, the device
is disabled. If this function is not used, Enable should be connected to V
in.
No internal connection.
V
out
Regulated output voltage.
MAXIMUM RATINGS
Input Voltage
Rating
Symbol
V
in
Value
Unit
V
V
V
0 to 6.0
Enable Voltage
Output Voltage
Enable
V
out
−0.3
to V
in
+0.3
−0.3
to V
in
+0.3
Power Dissipation and Thermal Characteristics
Power Dissipation
Thermal Resistance, Junction to Ambient
Operating Junction Temperature
Operating Ambient Temperature
Storage Temperature
P
D
R
qJA
T
J
T
A
Internally Limited
250
+150
W
C/W
C
C
C
−40
to +85
T
stg
−55
to +150
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. This device series contains ESD protection and exceeds the following tests:
Human Body Model 2000 V per MIL−STD−883, Method 3015
Machine Model Method 200 V
2. Latch up capability (85C)
100
mA DC with trigger voltage.
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2
NCP511
ELECTRICAL CHARACTERISTICS
(V
in
= V
out(nom.)
+ 1.0 V, V
enable
= V
in
, C
in
= 1.0
mF,
C
out
= 1.0
mF,
T
J
= 25C, unless otherwise noted.)
Characteristic
Output Voltage (T
A
= 25C, I
out
= 1.0 mA)
1.5 V
1.8 V
2.5 V
2.7 V
2.8 V
3.0 V
3.3 V
5.0 V
Output Voltage (T
A
=
−40C
to 85C, I
out
= 1.0 mA)
1.5 V
1.8 V
2.5 V
2.7 V
2.8 V
3.0 V
3.3 V
5.0 V
Line Regulation (I
out
= 10 mA)
1.5 V−4.4 V (V
in
= V
out(nom.)
+ 1.0 V to 6.0 V)
4.5 V−5.0 V (V
in
= 5.5 V to 6.0 V)
Load Regulation (I
out
= 1.0 mA to 150 mA)
Output Current (V
out
= (V
out
at I
out
= 150 mA)
−3%)
1.5 V−1.8 V (V
in
= 4.0 V)
1.9 V−3.0 V (V
in
= 5.0 V)
3.1 V−5.0 V (V
in
= 6.0 V)
Dropout Voltage (I
out
= 100 mA, Measured at V
out
−3.0%)
1.5 V
1.8 V
2.5 V
2.7 V
2.8 V
3.0 V
3.3 V
5.0 V
Quiescent Current
(Enable Input = 0 V)
(Enable Input = V
in
, I
out
= 1.0 mA to I
o(nom.)
)
Output Voltage Temperature Coefficient
Enable Input Threshold Voltage
(Voltage Increasing, Output Turns On, Logic High)
(Voltage Decreasing, Output Turns Off, Logic Low)
Output Short Circuit Current (V
out
= 0 V)
1.5 V−1.8 V (V
in
= 4.0 V)
1.9 V−3.0 V (V
in
= 5.0 V)
3.1 V−5.0 V (V
in
= 6.0 V)
Ripple Rejection (f = 1.0 kHz, I
o
= 60 mA)
Output Noise Voltage (f = 20 Hz to 100 kHz, I
out
= 60 mA)
3. Maximum package power dissipation limits must be observed.
T
*T
A
PD
+
J(max)
R
qJA
4. Low duty cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible.
Symbol
V
out
Min
1.455
1.746
2.425
2.646
2.744
2.94
3.234
4.900
1.455
1.746
2.425
2.619
2.716
2.910
3.201
4.900
−
−
−
150
150
150
−
−
−
−
−
−
−
−
−
−
−
1.3
−
200
200
200
−
−
Typ
1.5
1.8
2.5
2.7
2.8
3.0
3.3
5.0
1.5
1.8
2.5
2.7
2.8
3.0
3.3
5.0
1.0
1.0
0.3
−
−
−
245
160
110
100
100
100
90
75
0.1
40
"100
−
−
400
400
400
50
110
Max
1.545
1.854
2.575
2.754
2.856
3.06
3.366
5.100
1.545
1.854
2.575
2.781
2.884
3.09
3.399
5.100
3.5
3.5
0.8
−
−
−
350
200
200
200
200
200
200
200
1.0
100
−
−
0.3
800
800
800
−
−
Unit
V
V
out
V
Reg
line
mV/V
Reg
load
I
out(nom.)
mV/mA
mA
V
in
−V
out
mV
I
Q
mA
T
C
V
th(en)
ppm/C
V
I
out(max)
mA
RR
V
n
dB
mV
RMS
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3
NCP511
TYPICAL CHARACTERISTICS
200
180
DROPOUT VOLTAGE (mV)
160
140
120
100
80
60
40
20
0
−60 −40 −20
0
I
out
= 50 mA
I
out
= 10 mA
20
40
60
80
I
out
= 1 mA
I
out
= 100 mA
3.5
V
out
, OUTPUT VOLTAGE (V)
3.0
2.5
2.0
1.5
1.0
0.5
0
0
1
2
3
4
V
out(nom.)
= 3.0 V
I
O
= 0 mA
C
in
= 1.0
mF
C
out
= 1.0
mF
T
A
= 25C
V
enable
= V
in
5
6
7
V
out(nom.)
= 3.0 V
I
out
= 150 mA
100 120 140
TEMPERATURE (C)
V
in
, INPUT VOLTAGE (V)
Figure 2. Dropout Voltage vs. Temperature
Figure 3. Output Voltage vs. Input Voltage
50
I
Q
, QUIESCENT CURRENT (mA)
45
40
35
30
25
20
−50
V
in
= V
out(nom.)
+ 0.5 V
V
out(nom.)
= 3.0 V
I
O
= 0 mA
−25
0
25
50
75
100
125
GROUND PIN CURRENT (mA)
45
43
41
39
37
35
33
31
29
27
25
0
25
50
75
V
out(nom.)
= 3.0 V
V
in
= 5.0 V
T
A
= 25C
100
125
150
TEMPERATURE (C)
I
out
, OUTPUT CURRENT (mA)
Figure 4. Quiescent Current vs. Temperature
Figure 5. Ground Pin Current vs. Output Current
45
GROUND PIN CURRENT (mA)
40
CURRENT LIMIT (mA)
35
30
25
20
15
10
5
0
0
1
2
3
4
V
out(nom.)
= 3.0 V
I
out
= 50 mA
T
A
= 25C
5
6
450
400
350
300
250
200
150
100
50
0
0
1
2
3
V
out(nom.)
= 3.0 V
C
in
= 1.0
mF
4
5
6
V
in
, INPUT VOLTAGE (V)
V
in
, INPUT VOLTAGE (V)
Figure 6. Ground Pin Current vs. Input Voltage
Figure 7. Current Limit vs. Input Voltage
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4
NCP511
V
in
, INPUT
VOLTAGE (V)
V
in
, INPUT
VOLTAGE (V)
OUTPUT VOLTAGE
DEVIATION (mV)
V
in
= 3.5 V to 4.5 V
V
out
= 3.0 V
C
out
= 1
mF
I
out
= 1 mA
5
4
3
60
40
20
0
−20
−40
100 200 300 400 500 600 700 800 900
TIME (ms)
5
4
3
100
50
0
−50
−100
V
in
= 3.5 V to 4.5 V
V
out
= 3.0 V
20
40
60
80
C
out
= 1
mF
I
out
= 100 mA
100 120 140 160 180
OUTPUT VOLTAGE
DEVIATION (mV)
TIME (ms)
Figure 8. Line Transient Response
Figure 9. Line Transient Response
V
in
, INPUT
VOLTAGE (V)
5
4
3
150
100
50
0
−50
−100
−150
−200
V
in
= 3.5 V to 4.5 V
V
out
= 3.0 V
C
out
= 1
mF
I
out
= 150 mA
OUTPUT VOLTAGE
DEVIATION (mV)
20
40
60
80 100 120 140 160 180
TIME (ms)
Figure 10. Line Transient Response
I
out
, OUTPUT
CURRENT (mA)
150
V
in
= 3.5 V
V
out
= 3.0 V
C
in
= 1
mF
C
out
= 10
mF
I
out
= 1 mA to 150 mA
I
out
, OUTPUT
CURRENT (mA)
150
V
in
= 3.5 V
V
out
= 3.0 V
0
200
100
0
−100
−200
200 400 600 800 1000 1200 1400 1600 1800
TIME (ms)
C
in
= 1
mF
C
out
= 1
mF
I
O
= 1 mA to 150 mA
0
OUTPUT VOLTAGE
DEVIATION (mV)
20
10
0
−10
200 400 600
800 1000 1200 1400 1600 1800
TIME (ms)
Figure 11. Load Transient Response
OUTPUT VOLTAGE
DEVIATION (mV)
Figure 12. Load Transient Response
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