NCP508SQ18T1G [ONSEMI]
Very Low Noise, Fast Turn On, 50 mA Low Dropout Voltage Regulator; 非常低噪声，快速打开50 mA低压差稳压器
| 型号： | NCP508SQ18T1G |
| 厂家： | 
ONSEMI |
| 描述： | Very Low Noise, Fast Turn On, 50 mA Low Dropout Voltage Regulator |
| 文件： | 总15页 (文件大小：2350K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
NCP508
Very Low Noise, Fast Turn
On, 50 mA Low Dropout
Voltage Regulator
The NCP508 is a 50 mA low noise voltage regulator, designed to
exhibit fast turn on time and high ripple rejection. 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 NCP508 has been designed for use with ceramic capacitors.
The device is housed in SC−88A and WDFN6 1.5x1.5 packages.
Standard voltage versions are 1.5, 1.8, 2.5, 2.8, 3.0, and 3.3. Other
voltages are available in 100 mV steps.
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MARKING
DIAGRAM
5
3
2
1
5
SC70−5/SC−88A/SOT−353
SQ SUFFIX
xxx MG
G
CASE 419A
1
XXX
M
= Specific Device Code
= Date Code*
= Pb−Free Package
Features
• Very Low Noise at 39 mVrms without a Bypass Capacitor
• High Ripple Rejection of 70 dB at 1 kHz
• Low Dropout Voltage of 140 mV (typ) at 30 mA
G
(Note: Microdot may be in either location)
*Date Code orientation and/or position may
vary depending upon manufacturing location.
• Tight Load Regulation, typically 6 mV for DI = 50 mA
out
• Fast Enable Turn−On time of 20 msec
• Logic Level Enable
1
WDFN6
XX MG
MN SUFFIX
CASE 511BJ
• ESR can vary from a few mW to 3 W
• These are Pb−Free Devices
XX = Specific Device Code
M
G
= Date Code
= Pb−Free Package
Typical Applications
• RF Subsystems in Handsets
• Noise Sensitive Circuits; VCOs, PLL
PIN CONNECTIONS
Battery or
Unregulated
Voltage
V
out
V
1
2
5
V
out
1
2
3
5
4
in
C1
1m
C2
1m
GND
Enable
3
4
NC
ON
OFF
SC−88A
(Top View)
Figure 1. Typical Application Diagram
V
out
1
6
V
in
NC
2
3
5
4
NC
GND
Enable
WDFN6
(Top View)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 13 of this data sheet.
© Semiconductor Components Industries, LLC, 2010
1
Publication Order Number:
May, 2010 − Rev. 3
NCP508/D
NCP508
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 stand by. 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
Not connected pin
V
out
Regulated output voltage
MAXIMUM RATING
Rating
Symbol
Value
Unit
V
Input Voltage
Enable Voltage
Output Voltage
V
13.0
in(max)
Enable
Vout
−0.3 to V
+ 0.3
+ 0.3
V
in(max)
in(max)
−0.3 to V
V
Power Dissipation and Thermal Characteristics (SC−88A)
Power Dissipation
P
Internally Limited
200
W
°C/W
D
Thermal Resistance, Junction−to−Ambient (Note 4)
RqJA
Power Dissipation and Thermal Characteristics (WDFN6)
Power Dissipation
P
Internally Limited
313
W
°C/W
D
Thermal Resistance, Junction−to−Ambient (Note 4)
RqJA
Maximum Junction Temperature
Operating Ambient Temperature
Storage Temperature
TJ
+125
−40 to +85
−55 to +150
10
°C
°C
TA
Tstg
Tsolder
°C
Lead Soldering Temperature @ 260°C
sec
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 (85°C) $ 100 mA DC with trigger voltage
3. Maximum package power dissipation limits must be observed.
TJ max) * T
(
A
PD
+
RqJA
4. R
on a 30 x 30 mm PCB Cu thickness 1 oz; T = 25°C.
A
q
JA
RECOMMENDED OPERATING CONDITIONS
Rating
Symbol
Max
Unit
Maximum Operating Input Voltage
V
in
7.0
V
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NCP508
ELECTRICAL CHARACTERISTICS (V = V
+ 1.0 V, V = V , C = 1.0 mF, C = 1.0 mF, T = 25°C, unless otherwise
enable in in out J
in
out(nom)
noted)
Characteristic
Symbol
Min
−2
−3
−
Typ
−
Max
+2
+3
20
40
−
Unit
%
Output Voltage Tolerance (T = 25°C, I = 10 mA)
V
out
A
out
Output Voltage Tolerance (T = −40°C to 85°C, I = 10 mA)
V
out
−
%
A
out
Line Regulation (V = V + 1 V to 12 V, I = 10 mA) (Note 5)
Reg
2
mV
mV
mA
mV
in
out
out
line
Load Regulation (I = 1.0 mA to 50 mA) (Note 5)
Reg
−
6
out
load
Output Current (V = V
– 0.1 V)
I
out(nom)
50
−
out
out(nom)
Dropout Voltage (V = 3.0 V, Measured at V – 100 mV)
V −V
in out
out
= 30 mA
= 40 mA
= 50 mA
out
I
I
I
−
−
−
140
155
180
250
300
−
out
out
out
Quiescent Current
(Enable Input = 0V)
I
mA
mA
Q
−
0.1
1
Ground Current
(Enable Input = V , V = V + 1 V, I = 0 mA)
IGND
−
−
−
−
145
160
300
1100
200
260
500
1900
in in
out
out
(Enable Input = V , I = 1 mA)
in out
(Enable Input = V , I = 10 mA)
in out
(Enable Input = V , I = 50 mA)
in out
Enable Input Threshold Voltage
V
th(en)
V
(Voltage Increasing, Output Turns On, Logic High)
(Voltage Decreasing, Output Turns Off, Logic Low)
0.9
−
−
−
−
0.15
Enable Input Current (V
= 2.4 V)
I
−
−
8.0
20
15
−
mA
ms
enable
enable
Output Turn On Time (Note 6)
Output Short Circuit Current Limit (V = 0 V)
−
I
100
−
250
70
−
mA
out
out(max)
Ripple Rejection (V = V
+ 1 Vdc + 0.5 V , f = 1 kHz, Io = 10 mA)
RR
−
dB
in
out(nom)
pp
Output Noise Voltage (f = 100 Hz to 100 kHz) (V = 1.5 V)
V
n
−
39
−
mVrms
out
5. Low duty cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible.
6. Turn on time is defined from Enable at 10% to V at 95% nominal value. Min and max values T = −40°C to 85°C, T = 125°C. V
enable
out
A
jmax
= 0 V to V . C = 1.0 mF.
in
out
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NCP508
TYPICAL CHARACTERISTICS
300
250
200
150
100
50
300
V
out
= V
− 0.1 V
= 40 mA
V
out
= V
− 0.1 V
= 40 mA
out(nom)
out(nom)
250
200
150
100
50
I
I
load
load
0
0
−40 −20
0
20
40
60
80
100 120
−40 −20
0
20
40
60
80
100 120
TEMPERATURE (°C)
TEMPERATURE (°C)
Figure 2. Dropout Voltage vs. Temperature,
1.5 V
Figure 3. Dropout Voltage vs. Temperature,
3.3 V
1.506
1.504
1.502
1.5
3.32
3.315
3.31
V
out
= V
+ 1 V
= 1 mA
out(nom)
V
out
= V
+ 1 V
= 1 mA
out(nom)
I
load
I
load
1.498
1.496
1.494
1.492
1.49
3.305
3.3
3.295
3.29
−40 −20
0
20
40
60
80
100 120
−40 −20
0
20
40
60
80
100 120
TEMPERATURE (°C)
TEMPERATURE (°C)
Figure 4. Output Voltage vs. Temperature,
1.5 V
Figure 5. Output Voltage vs. Temperature,
3.3 V
230
220
210
200
190
180
170
160
150
250
200
150
100
50
V
out
= V
− 0.1 V
V
out
= V
− 0.1 V
out(nom)
out(nom)
0
−40 −20
0
20
40
60
80
100 120
−40 −20
0
20
40
60
80
100 120
TEMPERATURE (°C)
TEMPERATURE (°C)
Figure 6. Output Current Limit vs.
Temperature, 1.5 V
Figure 7. Output Current Limit vs.
Temperature, 3.3 V
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NCP508
TYPICAL CHARACTERISTICS
330
310
290
270
250
230
210
190
170
150
400
V
out
= 0 V
V
out
= 0 V
350
300
250
200
150
100
50
0
−40 −20
0
20
40
60
80
100 120
−40 −20
0
20
40
60
80
100 120
TEMPERATURE (°C)
TEMPERATURE (°C)
Figure 8. Short−Circuit Current Limit vs.
Figure 9. Short−Circuit Current Limit vs.
Temperature, 1.5 V
Temperature, 3.3 V
300
250
200
150
100
50
450
400
350
300
250
200
150
100
50
V
EN
= 0 V
V
EN
= 0 V
0
0
−40 −20
0
20
40
60
80
100 120
−40 −20
0
20
40
60
80
100 120
TEMPERATURE (°C)
TEMPERATURE (°C)
Figure 10. Quiescent Current vs. Temperature,
1.5 V
Figure 11. Quiescent Current vs. Temperature,
3.3 V
145
140
135
130
125
120
146
144
142
140
138
136
134
132
130
128
V
= V + 1 V
V
= V + 1 V
in
I
out
in
I
out
= 0 mA
= 0 mA
out
out
−40 −20
0
20
40
60
80
100 120
−40 −20
0
20
40
60
80
100 120
TEMPERATURE (°C)
TEMPERATURE (°C)
Figure 12. Ground Current vs. Temperature,
1.5 V
Figure 13. Ground Current vs. Temperature,
3.3 V
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NCP508
TYPICAL CHARACTERISTICS
400
350
300
250
200
150
100
50
500
V
= V
in
= 0 mA
EN
V
= V
in
= 0 mA
EN
2V8,
No Load
V
out
I
out
450 Voltage Option = 1.5 V
C
= C = 1 mF
T = 25°C
A
in
out
C
= C = 1 mF
T = 25°C
A
3V3,
No Load
in
out
400
350
300
250
1V5,
No Load
0
0
1
2
3
4
5
6
7
8
9
10 11 12 13
2
3
4
5
6
7
8
9
10 11 12 13
V , INPUT VOLTAGE (V)
in
V , INPUT VOLTAGE (V)
in
Figure 14. Quiescent Current vs. Input Voltage
Figure 15. Output Short−Circuit Current vs.
Input Voltage
240
C
= C = 1 mF
out
T = 25°C
A
in
220
200
180
160
140
120
100
80
2V8
3V
1V8
3V3
1V5
0.03
2V5
60
40
20
0
0
0.01
0.02
0.04
0.05
I
, OUTPUT CURRENT (A)
out
Figure 16. Dropout Voltage vs. Output Current
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NCP508
TYPICAL CHARACTERISTICS
1.6
1.4
1.2
1
3.6
3.2
2.8
2.4
2
I
= 1.0 mA to
50 mA
out
I
= 1.0 mA to
50 mA
out
0.8
0.6
0.4
0.2
0
1.6
1.2
V
= V
= 1.5 V
V = V
EN in
EN
in
0.8
0.4
0
V
out
V
out
= 3.3 V
C
= C = 1 mF
T = 25°C
A
C = C = 1 mF
in
out
in out
T = 25°C
A
0
2
4
6
8
10
12
0
2
4
6
8
10
12
V , INPUT VOLTAGE (V)
Figure 17. Oiuntput Voltage vs. Input Voltage
V , INPUT VOLTAGE (V)
Figure 18. Output Voltage vs. Input Voltage
in
1.6
1.4
1.2
1
3.6
3.2
2.8
2.4
2
V
in
= 4.3 V
V
in
= 2.5 V
0.8
0.6
0.4
0.2
0
1.6
1.2
0.8
0.4
0
V
= V
= 1.5 V
V
= V
= 3.3 V
EN
in
EN in
V
out
V
out
C
= C = 1 mF
T = 25°C
A
C = C = 1 mF
in
out
in out
T = 25°C
A
0
0.05
0.1
0.15
0.2
0.25
0.3
0
0.05
0.1
, OUTPUT CURRENT (A)
out
0.15
0.2
0.25
0.3
I
, OUTPUT CURRENT (A)
I
out
Figure 19. Output Voltage vs. Output Current
Figure 20. Output Voltage vs. Output Current
16
14
12
Region of Instability
Region of Stability
10
8
6
4
C
= C = 1 mF
out
T = 25°C
A
in
2
0
0
5
10 15 20 25 30 35 40 45 50
, OUTPUT CURRENT (mA)
I
out
Figure 21. Equivalent Series Resistance vs.
Output Current, X7R, MLCC Capacitor
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NCP508
TYPICAL CHARACTERISTICS
V
= 1.5 V
= 2.5 V
Input Voltage (V)
= 1.5 V
out
V
in
3.5
2.5
I
= 1 to 50 mA
= 1 uF MLCC
load
V
V
out
Load Current (mA)
C
out
= 2.5 V to 3.5 V /rate 1 V/ms
in
I
C
= 40 mA
= 1 mF MLCC
load
20 mV
10 mV
0
out
60 mV
30 mV
0
Output Voltage Deviation (mV)
Output Voltage Deviation (mV)
−10 mV
−20 mV
−30 mV
−30 mV
−60 mV
Figure 22. Line Transient Response
1.5 V/40 mA
Figure 23. Load Transient Response 1.5 V
Input voltage (V)
3.5
V
V
I
= 1.5 V
= 2.5 V to 3.5 V /rate 1 V/ms
= 50 mA
= 4.7 mF MLCC
out
in
2.5
load
C
out
20 mV
10 mV
0
Output Voltage Deviation (mV)
−10 mV
−20 mV
Figure 24. Line Transient Response
1.5 V/50 mA
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NCP508
TYPICAL CHARACTERISTICS
V
= 3.3 V
= 4.3 V
out
Input Voltage (V)
V
in
I
C
= 1 to 40 mA
= 1 mF MLCC
load
5.3
4.3
Load Current (mA)
V
V
= 3.3 V
= 4.3 V to 5.3 V /rate 1 V/ms
out
out
in
I
= 40 mA
load
20 mV
10 mV
0
C
= 1 mF MLCC
out
Output Voltage Deviation (mV)
40 mV
20 mV
0
Output Voltage Deviation (mV)
−10 mV
−20 mV
−30 mV
−20 mV
−40 mV
Figure 25. Load Transient Response 3.3 V
Figure 26. Line Transient Response
3.3 V/40 mA
Input Voltage (V)
= 3.3 V
5.3
V
V
out
= 4.3 V to 5.3 V /rate 1 V/ms
in
I
C
= 50 mA
= 4.7 mF MLCC
load
4.3
out
20 mV
Output Voltage Deviation (mV)
10 mV
0
−10 mV
−20 mV
Figure 27. Line Transient Response
3.3 V/50 mA
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NCP508
TYPICAL CHARACTERISTICS
3.0E−07
2.5E−07
2.0E−07
1.5E−07
1.0E−07
0.5E−07
0.0
RMS Noise Value (100 Hz − 100 kHz) = 39 mV
10
100
1000
10000
100000
1000000
FREQUENCY (Hz)
Figure 28. Output Voltage Noise
out = 1.5 V, Iout = 40 mA
V
90
80
70
60
50
40
30
20
10
0
1.5 V
2.5 V
3.3 V
10
100
1000
10000
100000
1000000
f
, RIPPLE FREQUENCY (Hz)
ripple
Figure 29. Ripple Rejection vs. Frequency
Iout = 40 mA, 0.5 Vpp
I
= No Load
I
= 50 mA
out
out
C
= C = 1 mF
C
= C = 1 mF
in
out
in
out
V
= V = 2.8 V
= 1.8 V
V
= V = 2.8 V
= 1.8 V
in
EN
in
EN
V
in
= V
EN
V
in
= V
EN
V
out
V
out
T = 25°C
A
T = 25°C
A
V
out
V
out
I
in
I
in
Figure 30. Startup, No Load
Figure 31. Startup, Iout = 50 mA
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NCP508
0.06
0.05
0.04
0.03
0.02
0.01
C
= C = 1 mF
out
= V = 2.8 V
EN
= 2.5 V
in
V
in
V
out
T = 25°C
A
I
= 180 mA
limit
V
= V
in
EN
C
= C = 1 mF
T = 85°C
A
in
out
50 mA/div
500 ms/div
0
0
1
2
3
4
5
6
7
8
9
10 11 12 13
V , INPUT VOLTAGE (V)
in
Figure 33. Measured Power Operating Area,
1.5 V, TA = 855C, Vout_drop = max 0.1 V
Figure 32. Hard Short−Circuit Current (by Copper Wires)
350
0.25
0.2
0.15
0.1
0.05
0
300
250
200
150
100
50
P
D
q
JA
33 x 26 mm
PCB Copper Thickness = 1.0 oz
0
0
100 200 300 400 500 600 700 800 900 1000
2
COPPER HEAT SPREADER AREA (mm )
Figure 34. Evaluation Board
Figure 35. SC70−5 Thermal Resistance vs.
Copper Heat Spreader Area
400
350
300
250
200
150
100
PCB Copper Thickness = 1.0 oz
50
0
100 200 300 400 500 600 700 800 900
2
PCB COPPER HEAT SPREADER AREA (mm )
Figure 36. WDFN6 Thermal Resistance vs.
Copper Heat Spreader Area
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NCP508
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 100 mV
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 125°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. 150°C. Depending on the
ambient power dissipation and thus the maximum available
output current.
APPLICATIONS INFORMATION
Hints
Typical application circuit for the NCP508 series is shown
in Figure 1.
Please be sure the V and GND lines are sufficiently wide.
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 as short as
possible.
in
Input Decoupling (C1)
An input capacitor of at least 1.0 mF,(ceramic or tantalum)
is recommended to improve the transient response of the
regulator and/or if the regulator is located more than a few
inches from the power source. It will also reduce the circuit’s
sensitivity to the input line impedance at high frequencies.
The capacitor should be mounted with the shortest possible
track length directly across the regular’s input terminals.
Higher values and lower ESR will improve the overall line
transient response.
Thermal Considerations
Internal thermal limiting circuitry is provided to protect
the integrated circuit in the event that the maximum junction
temperature is exceeded.
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 NCP508 has good
thermal conductivity through the PCB, the junction
temperature will be relatively low with high power
dissipation applications.
Output Decoupling (C2)
The NCP508 is a stable regulator and does not require a
minimum output current. Capacitors exhibiting ESRs
ranging from a few mW up to 3 W can safely be used. The
minimum decoupling value is 1.0 mF 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.
The maximum dissipation the package can handle is given
by:
TJ max) * T
(
A
(eq. 1)
PD
+
Enable Operation
RqJA
The enable pin will turn on or off the regulator. The limits
of threshold are covered in the electrical specification
section of this datasheet. If the enable is not used then the pin
where:
− T
is the maximum allowable junction temperature
J{max)
of the die, which is 150°C
should be connected to V .
in
− T is the ambient operating temperature
A
− R is dependent on the surrounding PCB layout
qja
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NCP508
ORDERING INFORMATION
Device
†
Nominal Output Voltage
Marking
Package
Shipping
NCP508SQ15T1G
1.5
D5A
SC−88A
3000 / Tape & Reel
3000 / Tape & Reel
3000 / Tape & Reel
3000 / Tape & Reel
3000 / Tape & Reel
3000 / Tape & Reel
3000 / Tape & Reel
3000 / Tape & Reel
3000 / Tape & Reel
3000 / Tape & Reel
3000 / Tape & Reel
3000 / Tape & Reel
(Pb−Free)
NCP508SQ18T1G
NCP508SQ25T1G
NCP508SQ28T1G
NCP508SQ30T1G
NCP508SQ33T1G
NCP508MN15TBG
NCP508MN18TBG
NCP508MN25TBG
NCP508MN28TBG
NCP508MN30TBG
NCP508MN33TBG
1.8
2.5
2.8
3.0
3.3
1.5
1.8
2.5
2.8
3.0
3.3
D5C
D5D
D5E
D5F
D5G
AA
SC−88A
(Pb−Free)
SC−88A
(Pb−Free)
SC−88A
(Pb−Free)
SC−88A
(Pb−Free)
SC−88A
(Pb−Free)
WDFN6
(Pb−Free)
AC
WDFN6
(Pb−Free)
AD
WDFN6
(Pb−Free)
AE
WDFN6
(Pb−Free)
AF
WDFN6
(Pb−Free)
AG
WDFN6
(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.
NOTE: Additional voltages in 100 mV steps are available upon request by contacting your ON Semiconductor representative.
http://onsemi.com
13
NCP508
PACKAGE DIMENSIONS
SC70−5, SC−88A, SOT−353
SQ SUFFIX
CASE 419A−02
ISSUE J
A
NOTES:
1. DIMENSIONING AND TOLERANCING
PER ANSI Y14.5M, 1982.
G
2. CONTROLLING DIMENSION: INCH.
3. 419A−01 OBSOLETE. NEW STANDARD
419A−02.
4. DIMENSIONS A AND B DO NOT INCLUDE
MOLD FLASH, PROTRUSIONS, OR GATE
BURRS.
5
4
3
−B−
S
INCHES
DIM MIN MAX
MILLIMETERS
MIN
1.80
1.15
0.80
0.10
MAX
2.20
1.35
1.10
0.30
1
2
A
B
C
D
G
H
J
0.071
0.045
0.031
0.004
0.087
0.053
0.043
0.012
0.026 BSC
0.65 BSC
M
M
D 5 PL
0.2 (0.008)
B
---
0.004
0.004
0.004
0.010
0.012
---
0.10
0.10
0.10
0.25
0.30
K
N
S
N
0.008 REF
0.20 REF
0.079
0.087
2.00
2.20
J
C
K
H
SOLDERING FOOTPRINT*
0.50
0.0197
0.65
0.025
0.65
0.025
0.40
0.0157
1.9
0.0748
mm
inches
ǒ
Ǔ
SCALE 20:1
*For additional information on our Pb−Free strategy and soldering
details, please download the ON Semiconductor Soldering and
Mounting Techniques Reference Manual, SOLDERRM/D.
http://onsemi.com
14
NCP508
PACKAGE DIMENSIONS
WDFN6 1.5x1.5, 0.5P
CASE 511BJ−01
ISSUE O
NOTES:
1. DIMENSIONING AND TOLERANCING PER
ASME Y14.5M, 1994.
L
D
A
B
2. CONTROLLING DIMENSION: MILLIMETERS.
3. DIMENSION b APPLIES TO PLATED
TERMINAL AND IS MEASURED BETWEEN
0.15 AND 0.30mm FROM TERMINAL TIP.
4. COPLANARITY APPLIES TO THE EXPOSED
PAD AS WELL AS THE TERMINALS.
L1
DETAIL A
ALTERNATE TERMINAL
CONSTRUCTIONS
E
MILLIMETERS
PIN ONE
DIM
A
MIN
0.70
0.00
MAX
0.80
0.05
REFERENCE
A3
A1
A3
b
EXPOSED Cu
MOLD CMPD
2X
0.10
C
0.20 REF
0.20
0.30
1.50 BSC
1.50 BSC
0.50 BSC
D
2X
0.10
C
E
TOP VIEW
e
A1
L
0.40
---
0.60
0.15
0.70
DETAIL B
A3
L1
L2
DETAIL B
0.05
0.05
C
C
0.50
ALTERNATE
CONSTRUCTIONS
A
A1
RECOMMENDED
MOUNTING FOOTPRINT*
NOTE 4
SEATING
C
SIDE VIEW
PLANE
5X
0.73
6X
0.35
DETAIL A
1
5X
L
e
3
L2
1.80
0.50
PITCH
0.83
6
4
DIMENSIONS: MILLIMETERS
6X b
*For additional information on our Pb−Free strategy and soldering
details, please download the ON Semiconductor Soldering and
Mounting Techniques Reference Manual, SOLDERRM/D.
0.10
C
C
A
B
NOTE 3
0.05
BOTTOM VIEW
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
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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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For additional information, please contact your local
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NCP508/D
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