NCP511SN15T1 [ONSEMI]
150 mA CMOS Low Iq Low-Dropout Voltage Regulator; 150毫安CMOS低Iq低压差稳压器
| 型号： | NCP511SN15T1 |
| 厂家： | 
ONSEMI |
| 描述： | 150 mA CMOS Low Iq Low-Dropout Voltage Regulator |
| 文件： | 总12页 (文件大小：89K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
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 m A. 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.
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The NCP511 has been designed to be used with low cost ceramic
capacitors and requires a minimum output capacitor of 1.0 m F. 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.
TSOP−5
(SOT23−5, SC59−5)
SN SUFFIX
CASE 483
PIN CONNECTIONS AND
MARKING DIAGRAM
Features
• Low Quiescent Current of 40 m A 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
V
1
2
5
V
in
out
GND
Enable
3
4
N/C
• High Accuracy Output Voltage of 2.0%
• Industrial Temperature Range of −40°C to 85°C
• Pb−Free Packages are Available
xxx = Version
Y
= Year
W
= Work Week
Typical Applications
(Top View)
• Cellular Phones
• Battery Powered Instruments
• Hand−Held Instruments
• Camcorders and Cameras
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 10 of this data sheet.
V
in
V
out
1
3
5
Driver w/
Current
Limit
Thermal
Shutdown
Enable
ON
OFF
2
GND
This device contains 82 active transistors
Figure 1. Representative Block Diagram
Semiconductor Components Industries, LLC, 2004
1
Publication Order Number:
March, 2004 − Rev. 9
NCP511/D
NCP511
PIN FUNCTION DESCRIPTION
Pin No.
Pin Name
Description
1
2
3
V
Positive power supply input voltage.
Power supply ground.
in
GND
Enable
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.
4
5
N/C
No internal connection.
V
out
Regulated output voltage.
MAXIMUM RATINGS
Rating
Symbol
Value
Unit
V
Input Voltage
Enable Voltage
Output Voltage
V
in
0 to 6.0
Enable
−0.3 to V +0.3
V
in
V
out
−0.3 to V +0.3
V
in
Power Dissipation and Thermal Characteristics
Power Dissipation
Thermal Resistance, Junction to Ambient
P
Internally Limited
250
W
°C/W
D
R
q
JA
Operating Junction Temperature
Operating Ambient Temperature
Storage Temperature
T
+125
°C
°C
°C
J
T
A
−40 to +85
−55 to +150
T
stg
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 (85°C) "100 mA DC with trigger voltage.
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NCP511
ELECTRICAL CHARACTERISTICS (V = V
+ 1.0 V, V
= V , C = 1.0 m F, C
= 1.0 m F, T = 25°C, unless
out J
in
out(nom.)
enable
in
in
otherwise noted.)
Characteristic
Symbol
Min
Typ
Max
Unit
Output Voltage (TA = 25°C, I = 1.0 mA)
V
out
V
out
1.5 V
1.8 V
2.5 V
2.7 V
2.8 V
3.0 V
3.3 V
5.0 V
1.455
1.746
2.425
2.646
2.744
2.94
1.5
1.8
2.5
2.7
2.8
3.0
3.3
5.0
1.545
1.854
2.575
2.754
2.856
3.06
3.234
4.900
3.366
5.100
Output Voltage (TA = −40°C to 85°C, I = 1.0 mA)
V
out
V
out
1.5 V
1.8 V
2.5 V
2.7 V
2.8 V
3.0 V
3.3 V
5.0 V
1.455
1.746
2.425
2.619
2.716
2.910
3.201
4.900
1.5
1.8
2.5
2.7
2.8
3.0
3.3
5.0
1.545
1.854
2.575
2.781
2.884
3.09
3.399
5.100
Line Regulation (I = 10 mA)
Reg
mV/V
out
line
1.5 V−4.4 V (V = V
+ 1.0 V to 6.0 V)
−
−
1.0
1.0
3.5
3.5
in
out(nom.)
4.5 V−5.0 V (V = 5.5 V to 6.0 V)
in
Load Regulation (I = 1.0 mA to 150 mA)
Reg
−
0.3
0.8
mV/mA
mA
out
load
Output Current (V = (V at I = 150 mA) −3%)
I
out(nom.)
out
out
out
1.5 V−1.8 V (V = 4.0 V)
150
150
150
−
−
−
−
−
−
in
1.9 V−3.0 V (V = 5.0 V)
in
3.1 V−5.0 V (V = 6.0 V)
in
Dropout Voltage (I = 100 mA, Measured at V −3.0%)
V −V
in out
mV
out
out
1.5 V
1.8 V
2.5 V
2.7 V
2.8 V
3.0 V
3.3 V
5.0 V
−
−
−
−
−
−
−
−
245
160
110
100
100
100
90
350
200
200
200
200
200
200
200
75
Quiescent Current
(Enable Input = 0 V)
I
Q
m A
−
−
0.1
40
1.0
100
(Enable Input = V , I = 1.0 mA to I
)
in out
o(nom.)
Output Voltage Temperature Coefficient
Enable Input Threshold Voltage
T
−
"100
−
ppm/°C
C
V
V
th(en)
(Voltage Increasing, Output Turns On, Logic High)
(Voltage Decreasing, Output Turns Off, Logic Low)
1.3
−
−
−
−
0.3
Output Short Circuit Current (V = 0 V)
I
mA
out
out(max)
1.5 V−1.8 V (V = 4.0 V)
200
200
200
400
400
400
800
800
800
in
1.9 V−3.0 V (V = 5.0 V)
in
3.1 V−5.0 V (V = 6.0 V)
in
Ripple Rejection (f = 1.0 kHz, I = 60 mA)
RR
−
−
50
−
−
dB
o
Output Noise Voltage (f = 20 Hz to 100 kHz, I = 60 mA)
V
n
110
m
V
r
m
s
out
3. Maximum package power dissipation limits must be observed.
T
*T
A
qJA
J(max)
PD +
R
4. Low duty cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible.
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NCP511
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
200
180
160
140
120
100
80
V
= 3.0 V
out(nom.)
I
= 150 mA
= 100 mA
out
I
out
V
= 3.0 V
out(nom.)
= 0 mA
I
O
I
= 50 mA
= 10 mA
out
C
C
= 1.0 m F
= 1.0 m F
60
in
out
40
I
= 1 mA
out
T = 25°C
A
I
out
20
V
enable
= V
in
0
0
0
0
1
2
3
4
5
6
7
−60 −40 −20
0
20 40
60 80 100 120 140
V , INPUT VOLTAGE (V)
in
TEMPERATURE (°C)
Figure 2. Dropout Voltage vs. Temperature
Figure 3. Output Voltage vs. Input Voltage
50
45
40
45
43
41
39
37
35
33
31
29
27
25
35
30
25
20
V
V
I
= V
+ 0.5 V
V
V
= 3.0 V
125
in
out(nom.)
out(nom.)
= 5.0 V
= 3.0 V
out(nom.)
= 0 mA
in
T = 25°C
O
A
−50
−25
0
25
50
75
100
125
25
50
75
100
150
TEMPERATURE (°C)
I
, OUTPUT CURRENT (mA)
out
Figure 4. Quiescent Current vs. Temperature
Figure 5. Ground Pin Current vs. Output Current
45
40
35
30
25
20
15
10
5
450
400
350
300
250
200
150
100
50
V
= 3.0 V
out(nom.)
= 50 mA
T = 25°C
V
C
= 3.0 V
= 1.0 m F
I
out(nom.)
out
in
A
0
0
0
1
2
3
4
5
6
1
2
3
4
5
6
V , INPUT VOLTAGE (V)
in
V , INPUT VOLTAGE (V)
in
Figure 6. Ground Pin Current vs. Input Voltage
Figure 7. Current Limit vs. Input Voltage
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NCP511
5
4
5
4
3
3
60
40
20
0
100
V
V
C
= 3.5 V to 4.5 V
= 3.0 V
in
50
0
out
= 1 m F
out
I
= 1 mA
out
−50
V
= 3.5 V to 4.5 V
= 3.0 V
C
= 1 m F
out
= 100 mA
in
−100
−20
−40
V
out
I
out
20 40 60 80 100 120 140 160 180
100 200 300 400 500 600 700 800 900
TIME (m s)
TIME (m s)
Figure 9. Line Transient Response
Figure 8. Line Transient Response
5
4
3
150
100
50
C
= 1 m F
= 150 mA
out
I
out
0
−50
V
= 3.5 V to 4.5 V
= 3.0 V
in
−100
−150
−200
V
out
20 40 60 80 100 120 140 160 180
TIME (m s)
Figure 10. Line Transient Response
150
150
V
out
C
= 3.5 V
in
V
= 3.0 V
V
in
= 3.5 V
= 1 m F
in
V
out
= 3.0 V
C
out
= 10 m F
out
I
= 1 mA to 150 mA
0
0
C
C
= 1 m F
in
200
= 1 m F
out
20
10
100
I
O
= 1 mA to 150 mA
0
0
−100
−10
−200
200 400 600 800 1000 1200 1400 1600 1800
200 400 600 800 1000 1200 1400 1600 1800
TIME (m s)
TIME (m s)
Figure 11. Load Transient Response
Figure 12. Load Transient Response
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NCP511
V
V
= 3.5 V
= 3.0 V
in
2
1
0
4
3
2
1
0
out
T = 25°C
A
I
= 1 mA
= 1 m F
out
C
in
C
= 10 m F
C
= 1 m F
out
out
20
40 60 80 100 120 140 160 180
TIME (m s)
Figure 13. Turn−On Response
70
1.6
1.4
1.2
V
V
= 1.5 V
= 2.5 V
= 60 mA
= 2.2 m F
V
out
= 3.0 V
out
V
in
= 3.5 V ± 0.25 V
in
DC
60
I
I
= 60 mA
out
out
C
C
= 1.0 m F
out
out
50
40
1.0
0.8
0.6
0.4
30
20
10
0
0.2
0
0.01
0.1
1.0
10
100
1000
100
1 k
10 k
f, FREQUENCY (Hz)
100 k
1 M
f, FREQUENCY (kHz)
Figure 14. Output Noise Density
Figure 15. Ripple Rejection vs. Frequency
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NCP511
DEFINITIONS
Load Regulation
Line Regulation
The change in output voltage for a change in output
current at a constant temperature.
The change in output voltage for a change in input voltage.
The measurement is made under conditions of low
dissipation or by using pulse technique such that the average
chip temperature is not significantly affected.
Dropout Voltage
The input/output differential at which the regulator output
no longer maintains regulation against further reductions in
input voltage. Measured when the output drops 3.0% below
its nominal. The junction temperature, load current, and
minimum input supply requirements affect the dropout level.
Line Transient Response
Typical over and undershoot response when input voltage
is excited with a given slope.
Thermal Protection
Internal thermal shutdown circuitry is provided to protect
the integrated circuit in the event that the maximum junction
temperature is exceeded. When activated at typically 160°C,
the regulator turns off. This feature is provided to prevent
failures from accidental overheating.
Maximum Power Dissipation
The maximum total dissipation for which the regulator
will operate within its specifications.
Quiescent Current
The quiescent current is the current which flows through
the ground when the LDO operates without a load on its
output: internal IC operation, bias, etc. When the LDO
becomes loaded, this term is called the Ground current. It is
actually the difference between the input current (measured
through the LDO input pin) and the output current.
Maximum Package Power Dissipation
The maximum power package dissipation is the power
dissipation level at which the junction temperature reaches
its maximum operating value, i.e. 125°C. Depending on the
ambient power dissipation and thus the maximum available
output current.
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NCP511
APPLICATIONS INFORMATION
Thermal
A typical application circuit for the NCP511 series is
shown in Figure 16.
As power across the NCP511 increases, it might become
necessary to provide some thermal relief. The maximum
power dissipation supported by the device is dependent
upon board design and layout. Mounting pad configuration
on the PCB, the board material and also the ambient
temperature effect the rate of temperature rise for the part.
This is stating that when the NCP511 has good thermal
conductivity through the PCB, the junction temperature will
be relatively low with high power dissipation applications.
The maximum dissipation the package can handle is
given by:
Input Decoupling (C1)
A 1.0 m F capacitor either ceramic or tantalum is
recommended and should be connected close to the NCP511
package. Higher values and lower ESR will improve the
overall line transient response.
Output Decoupling (C2)
The NCP511 is a stable Regulator and does not require any
specific Equivalent Series Resistance (ESR) or a minimum
output current. Capacitors exhibiting ESRs ranging from a
few mW up to 3.0 W can thus safely be used. The minimum
decoupling value is 1.0 m F and can be augmented to fulfill
stringent load transient requirements. The regulator accepts
ceramic chip capacitors as well as tantalum devices. Larger
values improve noise rejection and load regulation transient
response.
T
*T
A
qJA
J(max)
PD +
R
If junction temperature is not allowed above the
maximum 125°C, then the NCP511 can dissipate up to
400 mW @ 25°C.
The power dissipated by the NCP511 can be calculated
from the following equation:
Enable Operation
[
]
(I ) ) V * V
in gnd out in
[
]
P
+ V * I
* I
tot
out out
The enable pin will turn on or off the regulator. These
limits of threshold are covered in the electrical specification
section of this data sheet. If the enable is not used then the
or
)
*
I
P
V
tot
I
out out
) I
V
+
pin should be connected to V .
inMAX
in
gnd
out
Hints
If a 150 mA output current is needed then the ground
current from the data sheet is 40 m A. For an NCP511SN30T1
(3.0 V), the maximum input voltage will then be 5.6 V.
Please be sure the V and GND lines are sufficiently wide.
in
When the impedance of these lines is high, there is a chance
to pick up noise or cause the regulator to malfunction.
Set external components, especially the output capacitor,
as close as possible to the circuit, and make leads a short as
possible.
100
UNSTABLE
10
C
= 1 m F to 10 m F
out
1
0.1
T = 25°C to 125°C
A
V
in
= up to 6.0 V
Battery or
Unregulated
Voltage
V
out
1
2
3
5
4
+
C1
STABLE
50
+
C2
ON
0.01
0
25
75
100
125
150
OFF
I , OUTPUT CURRENT (mA)
O
Figure 16. Typical Application Circuit
Figure 17. Output Capacitor vs. Output Current
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NCP511
APPLICATION CIRCUITS
Input
Input
R1
R2
Q1
Q1
Q2
R3
R
Output
Output
1
2
3
5
4
1
2
3
5
4
1.0 m F
1.0 m F
1.0 m F
1.0 m F
Figure 18. Current Boost Regulator
Figure 19. Current Boost Regulator
with Short Circuit Limit
The NCP511 series can be current boosted with a PNP transis-
tor. Resistor R in conjunction with V of the PNP determines
when the pass transistor begins conducting; this circuit is not
short circuit proof. Input/Output differential voltage minimum is
BE
Short circuit current limit is essentially set by the V of Q2 and
BE
− ib * R2) / R1) + I
O(max) Regulator
R1. I = ((V
SC
BEQ2
increased by V of the pass resistor.
BE
4
3
2
1
0
3
2
Input
Output
1
1.0 m F
2
5
T = 25°C
A
V
in
= 3.5 V
1.0 m F
V
out
= 3.0 V
Enable
3
4
5
Output
1
1.0 m F
2
R = 1.0 M
W
1.0 m F
No Delay
R = 1.0 m
C = 1.0 m F
1
0
C = 0.1 m F
3
4
R
C
0
20
40 60
80
100 120
140
160
Time (ms)
Figure 20. Delayed Turn−on
Figure 21. Delayed Turn−on
If a delayed turn−on is needed during power up of several volt-
ages then the above schematic can be used. Resistor R, and
capacitor C, will delay the turn−on of the bottom regulator. A
few values were chosen and the resulting delay can be seen in
Figure 21.
The graph shows the delay between the enable signal and
output turn−on for various resistor and capacitor values.
Input
Q1
Output
5
1
2
3
1.0 m F
R
1.0 m F
4
5.6 V
Figure 22. Input Voltages Greater than 6.0 V
A regulated output can be achieved with input voltages that
exceed the 6.0 V maximum rating of the NCP511 series with
the addition of a simple pre−regulator circuit. Care must be
taken to prevent Q1 from overheating when the regulated
output (V ) is shorted to GND.
out
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NCP511
ORDERING INFORMATION
Nominal
Output Voltage
†
Device
NCP511SN15T1
Marking
Package
Shipping
1.5
1.5
1.8
1.8
2.5
2.5
2.7
2.7
2.8
2.8
3.0
3.0
3.3
3.3
5.0
5.0
LBU
LBU
LBV
LBV
LBW
LBW
LBX
LBX
LBY
LBY
LBZ
LBZ
LCA
LCA
LCB
LCB
NCP511SN15T1G
NCP511SN18T1
NCP511SN18T1G
NCP511SN25T1
NCP511SN25T1G
NCP511SN27T1
NCP511SN27T1G
NCP511SN28T1
NCP511SN28T1G
NCP511SN30T1
NCP511SN30T1G
NCP511SN33T1
NCP511SN33T1G
NCP511SN50T1
NCP511SN50T1G
3000 Units/
7″ Tape & Reel
TSOP−5
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
NOTE: Additional voltages in 100 mV steps are available upon request by contacting your ON Semiconductor representative.
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NCP511
PACKAGE DIMENSIONS
TSOP−5/SOT23−5/ SC59−5
SN SUFFIX
PLASTIC PACKAGE
CASE 483−02
ISSUE C
NOTES:
D
1. DIMENSIONING AND TOLERANCING PER
ANSI Y14.5M, 1982.
2. CONTROLLING DIMENSION: MILLIMETER.
3. MAXIMUM LEAD THICKNESS INCLUDES
LEAD FINISH THICKNESS. MINIMUM LEAD
THICKNESS IS THE MINIMUM THICKNESS
OF BASE MATERIAL.
4. A AND B DIMENSIONS DO NOT INCLUDE
MOLD FLASH, PROTRUSIONS, OR GATE
BURRS.
5
4
3
B
C
S
1
2
L
G
A
MILLIMETERS
DIM MIN MAX
INCHES
MIN MAX
A
B
C
D
G
H
J
K
L
M
S
2.90
1.30
0.90
0.25
0.85
3.10 0.1142 0.1220
1.70 0.0512 0.0669
1.10 0.0354 0.0433
0.50 0.0098 0.0197
1.05 0.0335 0.0413
J
0.05 (0.002)
H
M
K
0.013 0.100 0.0005 0.0040
0.10
0.20
1.25
0
0.26 0.0040 0.0102
0.60 0.0079 0.0236
1.55 0.0493 0.0610
10
0
10
_
_
_
_
2.50
3.00 0.0985 0.1181
SOLDERING FOOTPRINT*
1.9
0.074
0.95
0.037
2.4
0.094
1.0
0.039
0.7
0.028
mm
inches
ǒ
Ǔ
SCALE 10:1
TSOP−5/THIN SOT23−5/SC59−5
*For additional information on our Pb−Free strategy and soldering
details, please download the ON Semiconductor Soldering and
Mounting Techniques Reference Manual, SOLDERRM/D.
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NCP511
ON Semiconductor and
are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice
to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability
arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.
“Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All
operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights
nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications
intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should
Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates,
and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death
associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal
Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.
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P.O. Box 5163, Denver, Colorado 80217 USA
Phone: 303−675−2175 or 800−344−3860 Toll Free USA/Canada
Fax: 303−675−2176 or 800−344−3867 Toll Free USA/Canada
Email: orderlit@onsemi.com
Japan: ON Semiconductor, Japan Customer Focus Center
2−9−1 Kamimeguro, Meguro−ku, Tokyo, Japan 153−0051
Phone: 81−3−5773−3850
For additional information, please contact your
local Sales Representative.
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