Page 1
© Semiconductor Components Industries, LLC, 2007
April, 2007 − Rev. 3
1 Publication Order Number:
NCP5663/D
NCP5663, NCV5663
Low Output Voltage,
Ultra−Fast 3.0 A Low Dropout
Linear Regulator with Enable
The NCP5663/NCV5663 is a high performance, low dropout linear
regulator designed for high power applications that require up to 3.0 A
current. It is offered in both fixed and adjustable output versions. With
output voltages as low as 0.9 V and ultra−fast response times for load
transients, the NCP5663/NCV5663 also provides additional features
such as Enable and Error Flag (for the fixed output version),
increasing the utility of this device. A thermally robust, 5 pin D
2
PAK,
combined with an architecture that offers low ground current
(independent of load), provides for a superior high−current LDO
solution.
Features
• Ultra−Fast Transient Response (Settling Time: 1−3 ms)
• Low Noise Without Bypass Capacitor (28 mV
rms)
• Low Ground Current Independent of Load (3.0 mA Maximum)
• Fixed/Adjustable Output Voltage Versions
• Enable Function
• Error Flag (Fixed Output Version)
• Current Limit Protection
• Thermal Protection
• 0.9 V Reference Voltage for Ultra−Low Output Operation
• Power Supply Rejection Ratio > 65 dB
• NCV Prefix for Automotive and Other Applications Requiring Site
and Control Changes
• This is a Pb−Free Device
Applications
• Servers
• ASIC Power Supplies
• Post Regulation for Power Supplies
• Constant Current Source
• Networking Equipment
• Gaming and STB Modules
D2PAK
CASE 936A
1
5
x = P or V
y = A for Adjustable Version
B for Fixed 1.5 V Version
C for Fixed 1.8 V Version
A = Assembly Location
W = Wafer Lot
Y = Year
WW = Work Week
G = Pb−Free
MARKING
DIAGRAM
x5663DSy
AWYYWWG
Tab = Ground
Pin 1. Enable
2. V
in
3. Ground
4. V
out
5. Adj (adjustable output)
5. Error Flag (fixed output)
http://onsemi.com
MARKING
DIAGRAM
See detailed ordering and shipping information in the package
dimensions section on page 11 of this data sheet.
ORDERING INFORMATION
1
NC
Page 2
NCP5663, NCV5663
http://onsemi.com
2
PIN FUNCTION DESCRIPTION
Pin
Adj/Fixed
Pin Name Description
1 Enable This pin allows for on/off control of the regulator. To disable the device, connect to Ground. If this
function is not in use, connect to V
in
.
2 V
in
Positive Power Supply Input Voltage
3 Ground Power Supply Ground
4 V
out
Regulated Output Voltage
5 Adj
(Adjustable Version)
This pin is connected to the resistor divider network and programs the output voltage.
5 Error Flag
(Fixed Version)
An Error Flag is triggered when the output voltage is out of regulation excluding transient signals
that may occur. Requires a pullup resistor f 100 kW.
ABSOLUTE MAXIMUM RATINGS
Rating Symbol Value Unit
Input Voltage (Note 1) V
in
18 V
Output Pin Voltage V
out
−0.3 to Vin +0.3 V
Adjust Pin Voltage V
adj
−0.3 to Vin +0.3 V
Enable Pin Voltage V
en
−0.3 to Vin +0.3 V
Error Flag Voltage V
ef
−0.3 to Vin +0.3 V
Error Flag Current I
ef
3.0 mA
Thermal Characteristics (Note 1)
Thermal Resistance Junction−to−Air (Note 2)
Thermal Resistance Junction−to−Case
R
θ
JA
R
θ
JC
45
5.0
°C/W
Operating Junction Temperature Range T
J
−40 to +150 °C
Storage Temperature Range T
stg
−55 to +150 °C
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Opera t i n g Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
NOTE: This device series contains ESD protection and exceeds the following tests:
Human Body Model (HBM) JESD 22−A114−B
Machine Model (MM) JESD 22−A115−A.
1. Refer to Electrical Characteristics table and Application Information section for Safe Operating Area.
2. As measured using a copper heat spreading area of 625 mm
2
, 1 oz. copper thickness.
Page 3
NCP5663, NCV5663
http://onsemi.com
3
ELECTRICAL CHARACTERISTICS
(V
in
− V
out
= 1.5 V, for typical values TJ = 25°C, for min/max values TJ = −40°C to 85°C (125°C for NCV versions), Cin = C
out
= 150 mF
unless otherwise noted.)
Characteristic
Symbol Min Typ Max Unit
ADJUSTABLE OUTPUT VERSION
Input Voltage V
in
2.0 − 9.0 V
Output Noise Voltage V
n
− 28 −
mV
rms
Output Voltage Accuracy
T
J
= 25°C (V
in
= V
out
+1.5 V to 7.0 V, I
out
= 10 mA to 3.0 A)
T
J
= −20 to +125°C (V
in
= V
out
+1.5 V to 7.0 V, I
out
= 10 mA to 3.0 A)
T
J
= −40 to +150°C (V
in
= V
out
+1.5 V to 7.0 V, I
out
= 10 mA to 3.0 A)
V
out
−1%
−1.5%
−2%
−
0.9
−
+1%
+1.5%
+2%
V
Adjustable Pin Input Current I
adj
− 40 − nA
Line Regulation (I
out
= 10 mA, V
out
+1.5 V < Vin < 7.0 V) REG
line
− 0.03 − %
Load Regulation (10 mA < I
out
< 3.0 A) REG
load
− 0.03 − %
Dropout Voltage (I
out
= 3.0 A) V
DO
− 1.0 1.3 V
Peak Output Current Limit I
out
3.0 − − A
Internal Current Limitation I
lim
− 4.5 − A
Ripple Rejection (120 Hz)
Ripple Rejection (1 kHz)
RR −
−
70
65
−
−
dB
Thermal Shutdown (Guaranteed by Design) T
SHD
− 160 − °C
Ground Current
I
out
= 3.0 A
Disabled State
I
q
I
qds
−
−
1.3
10
3.0
300
mA
mA
Enable Input Threshold Voltage
Voltage Increasing, On state, Logic High
Voltage Decreasing, Off state, Logic Low
V
en
1.3
−
−
−
−
0.3
V
Enable Input Current
Enable Pin Voltage = 0.3 V
max
Enable Pin Voltage = 1.3 V
min
I
en
−
−
0.5
0.5
−
−
mA
Page 4
NCP5663, NCV5663
http://onsemi.com
4
ELECTRICAL CHARACTERISTICS
(V
in
− V
out
= 1.5 V, for typical values TJ = 25°C, for min/max values TJ = −40°C to 85°C (125°C for NCV versions), Cin = C
out
= 150 mF
unless otherwise noted.)
Characteristic
Symbol Min Typ Max Unit
FIXED OUTPUT VOLTAGE
Input Voltage
V
in
2.0 − 9.0 V
Output Noise Voltage (V
out
= 0.9 V) V
n
− 28 −
mV
rms
Output Voltage Accuracy (Note 3)
T
J
= 25°C (V
in
= V
out
+1.5 V to 7.0 V, I
out
= 10 mA to 3.0 A)
T
J
= −20 to +125°C (V
in
= V
out
+1.5 V to 7.0 V, I
out
= 10 mA to 3.0 A)
T
J
= −40 to +150°C (V
in
= V
out
+1.5 V to 7.0 V, I
out
= 10 mA to 3.0 A)
V
out
−1%
−1.5%
−2%
−
V
out
−
+1%
+1.5%
+2%
V
Line Regulation (I
out
= 10 mA, V
out
+1.5 V < Vin < 7.0 V) REG
line
− 0.03 − %
Load Regulation (10 mA < I
out
< 3.0 A) REG
load
− 0.2 − %
Dropout Voltage (I
out
= 3.0 A) V
DO
− 1.0 1.3 V
Peak Output Current Limit I
out
3.0 − − A
Internal Current Limitation I
lim
− 4.5 − A
Ripple Rejection (120 Hz)
Ripple Rejection (1 kHz)
RR −
−
70
65
−
−
dB
Thermal Shutdown (Guaranteed by Design) T
SHD
− 160 − °C
Ground Current
I
out
= 3.0 A
Disabled State
I
q
I
qds
−
−
1.3
30
3.0
300
mA
mA
Enable Input Threshold Voltage
Voltage Increasing, On state, Logic High
Voltage Decreasing, Off state, Logic Low
V
en
1.3
−
−
−
−
0.3
V
Enable Input Current
Enable Pin Voltage = 0.3 V
max
Enable Pin Voltage = 1.3 V
min
I
en
−
−
0.5
0.5
−
−
mA
Error Flag (Fixed Output) V
cflt
91 94 97 % of V
out
Error Flag Output Low Voltage Saturation (Ief = 1.0 mA) V
cfdo
− 200 − mV
Error Flag Leakage I
efleak
− 1.0 −
mA
Error Flag Blanking Time (Note 4) T
ef
− 50 −
ms
3. Refer to Ordering Information Table for available voltage options.
4. Can be disabled per customer request.
Page 5
NCP5663, NCV5663
http://onsemi.com
5
Figure 1. Typical Schematic, Adjustable Output Version
Voltage
Reference
Block
V
ref
= 0.9 V
Output
Stage
C
in
R1
R2
V
out
ADJ
GND
IN
Ck
GND
Figure 2. Typical Schematic, Fixed Output Version
Enable
Block
R3
R4
EN
ON
OFF
Voltage
Reference
Block
V
ref
= 0.9 V
Output
Stage
R1
R2
V
out
GND
IN
Cc
GND
Enable
Block
R3
R4
EN
ON
OFF
Rflag
Error
Flag
EF
R1 + R2
ǒ
V
out
V
ref
* 1
Ǔ
C
out
V
in
C
in
C
out
V
in
Page 6
NCP5663, NCV5663
http://onsemi.com
6
0.70
0.80
0.90
1.00
1.10
1.20
1.30
0 0.5 1.0 1.5 2.0 2.5 3.
0
I
out
, OUTPUT CURRENT (A)
V
DO
, DROPOUT VOLTAGE (V)
V
out
= 2.5 V
C
in
= 150 mF
C
out
= 10 to 150 mF
T
J
= 25°C
910
0 0.5 1.0 1.5 2.0 2.5 3
.0
I
out
, OUTPUT CURRENT (A)
V
out
, OUTPUT VOLTAGE (mV)
908
906
904
902
900
898
896
894
892
890
Vin = 3.3 V
I
out
= 3.0 A maximum
C
in
= 150 mF
C
out
= 1.0 to 150 mF
T
J
= 25°C
−50 −25
0 25 50 75 100 125 15
0
TJ, JUNCTION TEMPERATURE (°C)
I
SC
, SHORT CIRCUIT LIMIT (A)
5.00
0.0
0.5
1.0
1.5
2.0
2.5
−50 −25
0 25 50 75 100 125 150
TJ, JUNCTION TEMPERATURE (°C)
I
GND
, GROUND CURRENT (mA)
0.0
0.2
0.4
0.6
0.8
1.0
1.2
−50 −25
0 25 50 75 100 125 150
Figure 1. Dropout Voltage vs. Temperature Figure 2. Dropout Voltage vs. Output Current
Figure 3. Ground Current vs. Temperature Figure 4. Short Circuit Current Limit vs.
Temperature
TJ, JUNCTION TEMPERATURE (°C)
V
DO
, DROPOUT VOLTAGE (V)
I
out
= 3.0 A
I
out
= 300 mA
910
1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0
Vin, INPUT VOLTAGE (V)
V
out
, OUTPUT VOLTAGE (mV)
Figure 5. Output Voltage vs. Input Voltage
4.75
4.50
4.25
4.00
3.75
3.50
3.25
3.00
908
906
904
902
900
898
896
894
892
890
I
out
= 10 mA
C
in
= 150 mF
C
out
= 1.0 to 150 mF
T
J
= 25°C
Figure 6. Output Voltage vs. Output Load Curren
t
Vin = 2.5 V
C
in
= 150 mF
Page 7
NCP5663, NCV5663
http://onsemi.com
7
0
10
20
30
40
50
60
70
80
90
0 1.0 10 100 100
0
Figure 7. Output Current vs. Input−Output
Voltage Differential
I
out
= 1.0 A
I
out
= 10 mA
F, FREQUENCY (kHz)
RR, RIPPLE REJECTION (dB)
Vin = 3.3 V
V
out
= 0.9 V
I
out
= 10 mA
C
in
= 150 mF
C
out
= 150 nF
T
J
= 25°C
0
10
20
30
40
50
60
70
80
100
F, FREQUENCY (kHz)
NOISE DENSITY (nV
rms
/
Ǩ
Hz)
90
0
10
20
30
40
50
60
70
80
100
F, FREQUENCY (kHz)
NOISE DENSITY (nV
rms
/ǨHz)
90
Vin = 3.3 V
V
out
= 0.9 V
I
out
= 3.0 A
C
in
= 150 mF
C
out
= 1.0 mF
T
J
= 25°C
Start 1.0 kHz Stop 200 kHz
Start 1.0 kHz Stop 500 kH
z
Vin = 2.5 V
V
out
= 0.9 V
C
in
= 100 nF
C
out
= 1.0 mF
T
J
= 25°C
Figure 8. Ripple Rejection vs. Frequency
Figure 9. Noise Density vs. Frequency Figure 10. Noise Density vs. Frequency
OUTPUT CURRENT (A)
INPUT−OUTPUT VOLTAGE DIFFERENTIAL (V)
1.2
1.0
0.8
0.6
0.4
0.2
0.0
TA = 25°C
L = 25 mm Copper
201610201412468
Page 8
NCP5663, NCV5663
http://onsemi.com
8
1.0 A/Div
I
out
20 mV/Div
V
out
I
out
= 3.0 A to 10 mA
Vin = 3.3 V
V
out
= 0.9 V
C
in
= 150 mF
C
out
= 150 mF
T
A
= 25°C
TIME (1.0 ms/Div)
I
out
= 3.0 A to 10 mA
Vin = 3.3 V
V
out
= 0.9 V
C
in
= 150 mF
C
out
= 150 mF
T
A
= 25°C
TIME (100 ns/Div)
Vin = 3.3 V
V
out
= 0.9 V
C
in
= 150 mF
C
out
= 150 mF
T
A
= 25°C
I
out
= 10 mA to 3.0 A
TIME (1.0 ms/Div)
Figure 11. Load Transient Response Figure 12. Load Transient Response
Figure 13. Load Transient Response
Figure 14. Load Transient Response
Vin = 3.3 V
V
out
= 0.9 V
C
in
= 150 mF
C
out
= 150 mF
T
A
= 25°C
I
out
= 10 mA to 3.0 A
TIME (100 ns/Div)
1.0 A/Div 20 mV/Div
I
out
V
out
1.0 A/Div 20 mV/Div
I
out
V
out
1.0 A/Div 20 mV/Div
I
out
V
out
Vin = 3.3 V
V
out
= 0.9 V
C
in
= 150 mF
C
out
= 10 mF
T
A
= 25°C
I
out
= 10 mA to 3.0 A
TIME (500 ns/Div)
1.0 A/Div 20 mV/Div
I
out
V
out
Vin = 3.3 V
V
out
= 0.9 V
C
in
= 150 mF
C
out
= 10 mF
T
A
= 25°C
I
out
= 3.0 A to 10 mA
TIME (5.0 ms/Div)
1.0 A/Div 20 mV/Div
I
out
V
out
Figure 15. Load Transient Response Figure 16. Load Transient Response
Page 9
NCP5663, NCV5663
http://onsemi.com
9
APPLICATION INFORMATION
The NCP5663/NCV5663 is a high performance low
dropout 3.0 A linear regulator suitable for high power
applications, featuring an ultra−fast response time and low
noise without a bypass capacitor. It is offered in both fixed
and adjustable output versions with voltages as low as 0.9 V.
Additional features, such as Enable and Error Flag (fixed
output version) increase the utility of the
NCP5663/NCV5663. It is thermally robust and includes t he
safety features necessary during a fault condition, which
provide for an attractive high current LDO solution for
server, ASIC power supplies, networking equipment
applications, and many others.
Input Capacitor
The recommended input capacitor value is a 150 mF
OSCON with an Equivalent Series Resistance (ESR) of
50 mW. It is especially required if the power source is
located more than a few inches from the
NCP5663/NCV5663. This capacitor will reduce device
sensitivity and enhance the output transient response time.
The PCB layout is very important and in order to obtain the
optimal solution, the Vin and GND traces should be
sufficiently wide to minimize noise and unstable operation.
Output Capacitor
Proper output capacitor selection is required to maintain
stability. The NCP5663/NCV5663 is stable for C
out
as low
as 10 mF (Figures 15 and 16) and guaranteed to be stable at
an output capacitance of, C
out
> 33 mF with an ESR < 300
mW over the output current range of 10 mA to 3.0 A. For
PCB layout considerations, place the recommended ceramic
capacitor close to the output pin and keep the leads short.
This should help ensure ultra−fast transient response times.
Adjustable Output Operation
The application circuit for the adjustable output version is
shown in Figure 1. The reference voltage is 0.9 V and the
adjustable pin current is typically 40 nA. A resistor divider
network, R1 and R2, is calculated using the following
formula:
R1 + R2
ǒ
V
out
V
ref
* 1
Ǔ
Current Limit Operation
As the peak output current increases beyond its limitation,
the device is internally clampled to 4.5 A, thus causing the
output voltage to decrease and go out of regulation. This
allows the device never to exceed the maximum power
dissipation.
Error Flag Operation
The Error Flag pin on the NCP5663/NCV5663 will
produce a logic Low when it drops below the nominal output
voltage. Refer to the electrical characteristics for the
threshold values at which point the Error Flag goes Low.
When the NCP5663/NCV5663 is above the nominal output
voltage, the Error Flag will remain at logic High.
The external pullup resistor needs to be connected
between V
in
and the Error Flag pin. A resistor of
approximately 100 kW is recommended to minimize the
current consumption. No pullup resistor is required if the
Error Flag output is not being used.
Thermal Consideration
This series contains an internal thermal limiting circuit
that is designed to protect the regulator in the event that the
maximum junction temperature is exceeded. This feature
provides protection from a catastrophic device failure due to
accidental overheating. It is not intended to be used as a
substitute for proper heat sinking. The maximum device
power dissipation can be calculated by:
P
D
+
T
J(max)
* T
A
R
qJA
The bipolar process employed for this IC is fully
characterized and rated for reliable 18 V V
CCmax
operation.
To avoid damaging the part or degrading it’s reliability,
power dissipation transients should be limited to under 30 W
for D
2
PAK. For open−circuit to short−circuit transient,
P
DTransient
= V
CCmax
* ISC.
Page 10
NCP5663, NCV5663
http://onsemi.com
10
Figure 17. T est Board used for Evaluation
Page 11
NCP5663, NCV5663
http://onsemi.com
11
ORDERING INFORMATION
Device Nominal Output Voltage Package Shipping†
NCP5663DSADJR4G Adj
D2PAK
(Pb−Free)
800 Tape & Reel
NCP5663DS15R4G (Note 5) Fixed, 1.5 V 800 Tape & Reel
NCP5663DS18R4G (Note 5) Fixed, 1.8 V 800 Tape & Reel
NCP5663DS18G (Note 5) Fixed, 1.8 V 50 Units / Rail
NCV5663DSADJR4G Adj 800 Tape & Reel
NCV5663DS15R4G (Note 5) Fixed, 1.5 V 800 Tape & Reel
5. Other fixed output voltages available at 0.9 V, 1.2 V, 2.5 V, 3.0 V, 3.3 V per request.
†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.
Page 12
NCP5663, NCV5663
http://onsemi.com
12
PACKAGE DIMENSIONS
D2PAK 5−LEAD
CASE 936A−02
ISSUE C
5 REF
A
123
K
B
S
H
D
G
C
E
M
L
P
N
R
V
U
TERMINAL 6
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
3. TAB CONTOUR OPTIONAL WITHIN
DIMENSIONS A AND K.
4. DIMENSIONS U AND V ESTABLISH A MINIMUM
MOUNTING SURFACE FOR TERMINAL 6.
5. DIMENSIONS A AND B DO NOT INCLUDE
MOLD FLASH OR GATE PROTRUSIONS. MOLD
FLASH AND GATE PROTRUSIONS NOT TO
EXCEED 0.025 (0.635) MAXIMUM.
DIMAMIN MAX MIN MAX
MILLIMETERS
0.386 0.403 9.804 10.236
INCHES
B 0.356 0.368 9.042 9.347
C 0.170 0.180 4.318 4.572
D 0.026 0.036 0.660 0.914
E 0.045 0.055 1.143 1.397
G 0.067 BSC 1.702 BSC
H 0.539 0.579 13.691 14.707
K 0.050 REF 1.270 REF
L 0.000 0.010 0.000 0.254
M 0.088 0.102 2.235 2.591
N 0.018 0.026 0.457 0.660
P 0.058 0.078 1.473 1.981
R 5 REF
S 0.116 REF 2.946 REF
U 0.200 MIN 5.080 MIN
V 0.250 MIN 6.350 MIN
__
45
M
0.010 (0.254) T
−T−
OPTIONAL
CHAMFER
8.38
0.33
1.016
0.04
16.02
0.63
10.66
0.42
3.05
0.12
1.702
0.067
SCALE 3:1
ǒ
mm
inches
Ǔ
SOLDERING FOOTPRINT
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.
NCP5663/D
The product described herein (NCP5663/NCV5663), may be covered by one or more of the following U.S. patents: 5,920,184; 5,834,926.
There may be other patents pending.
PUBLICATION ORDERING INFORMATION
N. American Technical Support: 800−282−9855 Toll Free
USA/Canada
Europe, Middle East and Africa Technical Support:
Phone: 421 33 790 2910
Japan Customer Focus Center
Phone: 81−3−5773−3850
LITERATURE FULFILLMENT:
Literature Distribution Center for ON Semiconductor
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
ON Semiconductor Website: www.onsemi.com
Order Literature: http://www.onsemi.com/orderlit
For additional information, please contact your local
Sales Representative
Loading...