NCV57302DSADJR4G [ONSEMI]
3.0 A, Very Low-Dropout (VLDO) Fast Transient Response Regulator;
| 型号： | NCV57302DSADJR4G |
| 厂家： | 
ONSEMI |
| 描述： | 3.0 A, Very Low-Dropout (VLDO) Fast Transient Response Regulator 输出元件 调节器 |
| 文件： | 总10页 (文件大小：607K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
NCP57302, NCV57302
3.0 A, Very Low-Dropout
(VLDO) Fast Transient
Response Regulator
The NCP57302 is a high precision, very low dropout (VLDO), low
minimum input voltage and low ground current positive voltage
regulator that is capable of providing an output current in excess of
3.0 A with a typical dropout voltage of 315 mV at 3.0 A load current
and input voltage from 1.8 V and up. The device is stable with ceramic
output capacitors. The device can withstand up to 18 V max input
voltage.
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MARKING
DIAGRAMS
TAB
Internal protection features consist of output current limiting,
built−in thermal shutdown and reverse output current protection.
Logic level enable pin is available. The NCP57302 is an adjustable
voltage device and is available in D2PAK−5 package.
y
1
57302
5
AWLYWWG
2
D PAK
CASE 936A
1
Features
Output Current in Excess of 3.0 A
Minimum Operating Input Voltage 1.8 V for Full 3 A Output Current
315 mV Typical Dropout Voltage at 3.0 A
Adjustable Output Voltage Range from 1.24 V to 13 V
Low Ground Current
Fast Transient Response
Stable with Ceramic Output Capacitor
Logic Compatible Enable Pin
y
A
WL
Y
WW
G
= P (NCP), V (NCV)
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
Current Limit, Reverse Current and Thermal Shutdown Protection
Operation up to 13.5 V Input Voltage
NCV Prefix for Automotive and Other Applications Requiring
Unique Site and Control Change Requirements; AEC−Q100
Qualified and PPAP Capable
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 9 of this data sheet.
These are Pb−Free Devices
Applications
Consumer and Industrial Equipment Point of Regulation
Servers and Networking Equipment
FPGA, DSP and Logic Power supplies
Switching Power Supply Post Regulation
Battery Chargers
Functional Replacement for Industry Standard MIC29300,
MIC39300, MIC37300 with Improved Minimum Input Voltage
Specification
Semiconductor Components Industries, LLC, 2013
1
Publication Order Number:
May, 2013 − Rev. 2
NCP57302/D
NCP57302, NCV57302
TYPICAL APPLICATIONS
NCP57302
V
IN
1.3 V
VIN
EN
VOUT
+
+
R1
R2
ADJ
C
IN
C
OUT
GND
47 mF, Ceramic
Figure 1. Adjustable Regulator
PIN FUNCTION DESCRIPTION
Pin Number
Pin Name
EN
Pin Function
1
2
Enable Input: CMOS and TTL logic compatible. Logic high = enable; Logic low = shutdown.
Input voltage which supplies both the internal circuitry and the current to the output load
Ground
VIN
3
GND
TAB
TAB
4
TAB is connected to ground.
VOUT
ADJ
Linear Regulator Output.
5
Adjustable Regulator Feedback Input. Connect to output voltage resistor divider central node.
ABSOLUTE MAXIMUM RATINGS
Symbol
Rating
Value
0 to 18
Unit
V
V
V
V
P
Supply Voltage
IN
EN
OUT
D
Enable Input Voltage
0 to 18
V
– V
Reverse V
– V Voltage (EN = Shutdown or V = 0 V) (Note 1)
0 to 6.5
V
IN
OUT
IN
IN
Power Dissipation (Notes 2 and 3)
Junction Temperature
Internally Limited
T
T
–40 v T v +125
C
C
V
J
J
Storage Temperature
–65 v T v +150
S
J
ESD Rating (Notes 4 and 5)
Human Body Model
Machine Model
2000
200
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.
NOTE: All voltages are referenced to GND pin unless otherwise noted.
1. The ENABLE pin input voltage must be 0.8 V or V must be connected to ground potential.
IN
2. P
= (T
– T ) / R , where R
depends upon the printed circuit board layout.
q
q
D(max)
J(max)
A
JA
JA
3. This protection is not guaranteed outside the Recommended Operating Conditions.
4. Devices are ESD sensitive. Handling precautions recommended..
5. This device series incorporates ESD protection and is tested by the following methods:
ESD Human Body Model (HBM) tested per AEC*Q100*002 (EIA/JESD22*A114C)
ESD Machine Model (MM) tested per AEC*Q100*003 (EIA/JESD22*A115C)
This device contains latch*up protection and exceeds 100 mA per JEDEC Standard JESD78.
RECOMMENDED OPERATING CONDITIONS (Note 6)
Symbol
Rating
Value
1.8 to 13.5
0 to 13.5
Unit
V
V
Supply Voltage
IN
EN
J
V
Enable Input Voltage
Junction Temperature
V
T
–40 v T v +125
C
J
6. The device is not guaranteed to function outside it’s Recommended operating conditions.
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2
NCP57302, NCV57302
ELECTRICAL CHARACTERISTICS
T = 25C with V = V
+ 0.6 V; V = V ; I = 10 mA; bold values indicate –40C < T < +125C, unless noted. (Note 7)
J
IN
OUT nominal
EN IN L J
Parameter
Conditions
Min
−1.5
−2.5
Typ
Max
+1.5
+2.5
0.5
Unit
%
Output Voltage Accuracy
I = 10 mA
L
10 mA < I
< 3 A , V
+ 0.6 V v V v 13.5 V
%
OUT
OUT nominal
IN
Output Voltage Line Regulation
Output Voltage Load Regulation
V
IN
= V
+ 0.6 V to 13.5 V; I = 10 mA
0.02
0.2
%
OUT nominal
L
I = 10 mA to 3 A
L
1
%
V
– V
Dropout Voltage
I = 1.0 A (Note 10)
182
220
250
315
60
295
350
410
520
mV
mV
mV
mV
mA
IN
OUT
L
(Note 8)
I = 1.5 A
L
I = 2.0 A (Note 10)
L
I = 3.0 A
L
Ground Pin Current (Note 9)
I = 3.0 A
L
90
120
Ground Pin Current in Shutdown
Overload Protection Current Limit
Start−up Time
V
V
V
v 0.5 V
1.0
3.5
100
5
5
mA
A
EN
= 0 V
OUT
= V , V
OUT
nominal = 2.5 V, I = 10 mA,
OUT
500
ms
EN
C
IN
OUT
= 47 mF
Reference Voltage
1.221
1.209
1.240
100
1.259
V
1.271
Adjust Pin Bias Current
200
350
nA
ENABLE INPUT
Enable Input Signal Levels
Regulator enable
Regulator shutdown
v 0.8 V (Regulator shutdown)
1.4
V
V
0.8
Enable pin Input Current
V
EN
2
4
mA
6.5 V > V w 1.4 V (Regulator enable)
15
30
40
mA
EN
7. V
can be set by external resistor divider in the application. Tested for V
= 1.240 V unless noted.
OUTnominal
OUTnominal
8. V = V – V
when V
decreases to 98% of its nominal output voltage with V = V
+ 1 V. Tested for V
= 2.5 V.
DO
IN
GND
OUT
OUT
IN
OUT
OUTnominal
9. I = I
+ I
.
IN
OUT
10.Guaranteed by design.
Package
Conditions / PCB Footprint
Thermal Resistance
D2PAK–5, Junction−to−Case
D2PAK–5, Junction−to−Air
R
= 2.1C/W
= 52C/W
q
JC
2
PCB with 100 mm 2.0 oz Copper Heat Spreading Area
R
q
JA
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NCP57302, NCV57302
TYPICAL CHARACTERISTICS
T = 25C if not otherwise noted
J
100
90
80
70
60
50
40
30
20
100
90
80
70
C
= 100 mF
Ceramic
C
= 100 mF
Ceramic
OUT
OUT
60
50
40
30
20
C
= 47 mF
Ceramic
C
= 47 mF
OUT
OUT
Ceramic
V
V
I
= 3.5 V
= 2.5 V,
= 3 A,
V
V
I
= 3.5 V
= 2.5 V,
= 1 A,
IN
OUT
IN
OUT
10 OUT
= 0
10 OUT
= 0
C
C
IN
IN
0
0
10
100
1000
10k
100k
1M
3.0
2
10
100
1000
10k
100k
1M
FREQUENCY (Hz)
FREQUENCY (Hz)
Figure 2. Power Supply Rejection Ratio
Figure 3. Power Supply Rejection Ratio
500
450
400
350
300
250
200
150
100
50
500
450
400
350
300
250
200
150
100
50
3 A
2 A
+125C
+25C
1 A
−40C
V
= 2.5 V
V
= 2.5 V
OUTnom
OUTnom
0
0
0.0
0.5
1.0
1.5
2.0
2.5
−50 −30 −10 10
30
50
70
90
110 130
TEMPERATURE (C)
OUTPUT CURRENT (A)
Figure 4. Dropout Voltage vs. Output Current
Figure 5. Dropout Voltage vs. Temperature
3.0
2.5
2.0
1.5
1.0
0.5
0.0
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
10 mA
1 A
3 A
10 mA
1 A
3 A
2 A
2 A
V
= 1.24 V
V
= 2.5 V
OUTnom
OUTnom
1
1.2
1.4
1.6
1.8
1
1.2 1.4 1.6 1.8
2
2.2 2.4 2.6 2.8
3
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
Figure 6. Dropout Characteristics
Figure 7. Dropout Characteristics
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4
NCP57302, NCV57302
TYPICAL CHARACTERISTICS
T = 25C if not otherwise noted
J
60
50
40
30
20
10
0
1.4
1.2
1
V
= 1.8 V
= 1.24 V
IN
V
OUT
0.8
0.6
0.4
0.2
0
V
= 1.24 V
10 mA
OUTnom
0
0.5
1
1.5
2
2.5
3
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
OUTPUT CURRENT (A)
SUPPLY VOLTAGE (V)
Figure 8. Ground Current vs. Output Current
Figure 9. Ground Current vs. Supply Voltage
2.5
2
120
100
80
60
40
20
0
V
= 1.24 V
V
= 2.5 V
10 mA
OUTnom
OUTnom
1.5
1
3 A
2 A
1 A
0.5
0
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
Figure 10. Ground Current vs. Supply Voltage
Figure 11. Ground Current vs. Supply Voltage
1.4
1.2
1
140
120
100
80
V
= 2.5 V
OUTnom
3 A
0.8
0.6
0.4
0.2
0
60
2 A
1 A
40
V
V
= 3.5 V
= 2.5 V,
= 10 mA
IN
OUT
20
I
OUT
0
0
1
2
3
4
5
−50 −30 −10 10
30
50
70
90
110 130
SUPPLY VOLTAGE (V)
TEMPERATURE (C)
Figure 13. Ground Current vs. Temperature
Figure 12. Ground Current vs. Supply Voltage
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NCP57302, NCV57302
TYPICAL CHARACTERISTICS
T = 25C if not otherwise noted
J
90
80
70
60
50
40
30
20
40
35
30
25
20
15
10
5
V
V
I
= 3.5 V
V
= 3.5 V
= 2.5 V,
= 3 A
IN
OUT
IN
= 2.5 V,
= 1.5 A
V
OUT
10
0
I
OUT
OUT
0
−50 −30 −10 10
30
50
70
90
110 130
−50 −30 −10 10
30
50
70
90
110 130
TEMPERATURE (C)
TEMPERATURE (C)
Figure 14. Ground Current vs. Temperature
Figure 15. Ground Current vs. Temperature
2.6
2.55
2.5
22
20
18
16
14
12
10
8
V
EN
= 6.5 V
6
2.45
4
V
= 2.5 V
= 10 mA
V
= 1.4 V
50
OUTNOM
EN
2
I
OUT
2.4
0
−50 −30 −10 10
30
50
70
90
110 130
−50 −30 −10 10
30
70
90
110 130
TEMPERATURE (C)
TEMPERATURE (C)
Figure 16. Output Voltage vs. Temperature
Figure 17. Enable Pin Input Current vs.
Temperature
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6
NCP57302, NCV57302
FUNCTIONAL CHARACTERISTICS
Figure 18. Load Transient Response
Figure 19. Line Transient Response
Figure 20. Enable Transient Response
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7
NCP57302, NCV57302
APPLICATIONS INFORMATION
Output Capacitor and Stability
The device maintains the voltage at the ADJ pin at 1.24 V
referenced to ground. The current in R2 is then equal to
1.24 V / R2, and the current in R1 is the current in R2 plus
the ADJ pin bias current. The ADJ pin bias current flows
The NCP57302 device requires an output capacitor for
stable operation. The NCP57302 is designed to operate with
ceramic output capacitors. The recommended output
capacitance value is 47 mF or greater. Such capacitors help
to improve transient response and noise reduction at high
frequency.
from V
through R1 into the ADJ pin.
OUT
NCP57302
V
IN
V
OUT
VIN
VOUT
+
+
R1
R2
Input Capacitor
C
An input capacitor of 1.0 mF or greater is recommended
when the device is more than 4 inches away from the bulk
supply capacitance, or when the supply is a battery. Small,
surface−mount chip capacitors can be used for the
bypassing. The capacitor should be place within 1 inch of
the device for optimal performance. Larger values will help
to improve ripple rejection by bypassing the input of the
regulator, further improving the integrity of the output
voltage.
C
IN
OUT
EN
ADJ
47 mF,
Ceramic
GND
R1
R2
ǒ
Ǔ
V
OUT + 1.24 V @ 1 )
) IADJ @ R1
Figure 21. Adjustable Voltage Operation
For the R2 resistor value up to 15 kW the I
impact can be neglected and the R1 resistor value can be
calculated y:
current
ADJ
Minimum Load Current
The NCP57302 regulator is specified between finite
loads. A 10 mA minimum load current is necessary for
proper operation.
VOUT
(eq. 1)
ǒ Ǔ
R1 + R2
* 1
1.24
Enable Input
NCP57302 regulators also feature an enable input for
on/off control of the device. It’s shutdown state draws “zero”
current from input voltage supply (only microamperes of
leakage). The enable input is TTL/CMOS compatible for
Where V
is the desired nominal output voltage.
OUT
Thermal Considerations
The power handling capability of the device is limited by
the maximum rated junction temperature (125C). The P
simple logic interface, but can be connected up to V .
D
IN
total power dissipated by the device has two components,
Input to output voltage differential multiplied by Output
current and Input voltage multiplied by GND pin current.
Overcurrent and Reverse Output Current Protection
The NCP57302 regulator is fully protected from damage
due to output current overload and output short conditions.
When NCP57302 output is overloaded, Output Current
limiting is provided. This limiting is linear; output current
during overload or output short conditions is constant. These
features are advantageous for powering FPGAs and other
ICs having current consumption higher than nominal during
their startup.
ǒ
Ǔ @ I
OUT ) VIN @ IGND
(eq. 2)
P
D + VIN * VOUT
The GND pin current value can be found in Electrical
Characteristics table and in Typical Characteristics graphs.
The Junction temperature T is
J
TJ + TA ) PD @ RqJA
(eq. 3)
Thermal shutdown disables the NCP57302 device when
the die temperature exceeds the maximum safe operating
temperature.
where T is ambient temperature and R
Ambient Thermal Resistance of the NCP/NCV57302
device mounted on the specific PCB.
To maximize efficiency of the application and minimize
thermal power dissipation of the device it is convenient to
use the Input to output voltage differential as low as possible.
The static typical dropout characteristics for various
output voltage and output current can be found in the Typical
Characteristics graphs.
is the Junction to
A
qJA
When NCP57302 is disabled and (V
– V ) voltage
OUT
IN
difference is less than 6.5 V in the application, the output
structure of these regulators is able to withstand output
voltage (backup battery as example) to be applied without
reverse current flow.
Adjustable Voltage Design
The NCP/NCV57302 Adjustable voltage Device Output
voltage is set by the ratio of two external resistors as shown
in Figure 21.
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8
NCP57302, NCV57302
ORDERING INFORMATION
Output
Current
Output
Voltage
†
Device
Junction Temp. Range
Package
Shipping
NCP57302DSADJR4G
3.0 A
ADJ
−40C to +125C
D2PAK−5
(Pb−Free)
800 / Tape & Reel
800 / Tape & Reel
NCV57302DSADJR4G*
3.0 A
ADJ
−40C to +125C
D2PAK−5
(Pb−Free)
†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.
*NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC−Q100 Qualified and PPAP
Capable.
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NCP57302, NCV57302
PACKAGE DIMENSIONS
D2PAK 5
CASE 936A−02
ISSUE C
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.
−T−
TERMINAL 6
OPTIONAL
CHAMFER
A
E
U
S
K
V
B
H
1
2
3
4 5
INCHES
MILLIMETERS
M
L
DIM
A
B
C
D
E
MIN
MAX
0.403
0.368
0.180
0.036
0.055
MIN
9.804
9.042
4.318
0.660
1.143
MAX
10.236
9.347
4.572
0.914
1.397
0.386
0.356
0.170
0.026
0.045
D
M
P
N
0.010 (0.254)
T
G
R
G
H
K
L
M
N
P
0.067 BSC
0.539
0.579 13.691
0.050 REF
0.000
0.088
0.018
0.058
0.010
0.102
0.026
0.078
C
R
S
U
V
5_ REF
5_ REF
0.116 REF
0.200 MIN
0.250 MIN
2.946 REF
5.080 MIN
6.350 MIN
SOLDERING FOOTPRINT
8.38
0.33
1.702
0.067
10.66
0.42
1.016
0.04
3.05
0.12
16.02
0.63
mm
inches
ǒ
Ǔ
SCALE 3:1
2
5−LEAD D PAK
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NCP57302/D
相关型号：
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