LM2576
52 kHz Simple 3A Buck Regulator
Features
General Description
• 3.3V, 5V, 12V, and Adjustable Output Versions
• Voltage over Specified Line and Load Conditions:
- Fixed Version: ±3% Max. Output Voltage
- Adjustable Version: ±2% Max. Feedback
Voltage
• Specified 3A Output Current
• Wide Input Voltage Range of 4V to 40V
• Wide Output Voltage Range of 1.23V to 37V
• Requires Only Four External Components
• 52 kHz Fixed-Frequency Internal Oscillator
• Low Power Standby Mode IQ Typically 80%)
• Uses Readily Available Standard Inductors
• Thermal Shutdown and Current Limit Protection
• 100% Electrical Thermal Limit Built-In
The LM2576 series of monolithic integrated circuits
provide all the active functions for a step-down (buck)
switching regulator. Fixed versions are available with a
3.3V, 5V, or 12V fixed output. Adjustable versions have
an output voltage range from 1.23V to 37V. Both
versions are capable of driving a 3A load with excellent
line and load regulation.
Applications
• Simple High-Efficiency Step-Down (Buck)
Regulator
• Efficient Pre-Regulator for Linear Regulators
• On-Card Switching Regulators
• Positive and Negative Converter (Inverting
Buck-Boost)
• Isolated Flyback Converter using Minimum
Number of External Components
• Negative Boost Converter
These regulators are simple to use because they
require a minimum number of external components
and include internal frequency compensation and a
fixed-frequency oscillator. The LM2576 series offers a
high efficiency replacement for popular three-terminal
adjustable linear regulators. It substantially reduces the
size of the heat sink, and in many cases no heat sink is
required.
A standard series of inductors available from several
different manufacturers are ideal for use with the
LM2576 series. This feature greatly simplifies the
design of switch-mode power supplies.
The feedback voltage is guaranteed to ±2% tolerance
for adjustable versions, and the output voltage is
guaranteed to ±3% for fixed versions, within specified
input voltages and output load conditions. The
oscillator frequency is guaranteed to ±10%. External
shutdown is included, featuring less than 200μA
standby current. The output switch includes
cycle-by-cycle current limiting and thermal shutdown
for full protection under fault conditions.
Package Types
LM2576
TO-263 (U)
(Top View)
LM2576
TO-220 (T)
(Top View)
GND
2019 Microchip Technology Inc.
5- ON/OFF
4- FEEDBACK
3- GROUND
2- OUTPUT
1- VIN
GND
5- ON/OFF
4- FEEDBACK
3- GROUND
2- OUTPUT
1- VIN
DS20006238A-page 1
LM2576
Typical Application Circuits
LM2576
Fixed Regulator Version
7V–40V
UNREGULATED
DC INPUT
4
1
+VIN
CIN
100μF
LM2576-5.0
3
5
GND ON/OFF
FEEDBACK
OUTPUT L1
2
+5V, 3A
REGULATED
OUTPUT
100μH
D1
1N5822
COUT
330μF
NOTE: PIN NUMBERS ARE FOR TO-220 PACKAGE
LM2576
Adjustable Regulator Version
7V–40V
UNREGULATED
DC INPUT
4
1
+VIN
CIN
100μF
LM2576
3
5
GND ON/OFF
+5V, 3A
REGULATED
OUTPUT
FEEDBACK
OUTPUT L1
2
100μH
D1
1N5822
COUT
330μF
5 Nȍ
5Nȍ
NOTE: PIN NUMBERS ARE FOR TO-220 PACKAGE
DS20006238A-page 2
2019 Microchip Technology Inc.
LM2576
Functional Block Diagrams
LM2576
Fixed Regulator Version
VIN
FEEDBACK
INTERNAL
REGULATOR
1
4
5
ON/OFF
2
OUTPUT
3
GND
5
ON/OFF
2
OUTPUT
3
GND
FIXED GAIN
ERROR AMP
Nȍ
+
-
-
1.23V
BAND-GAP
REFERENCE
3 AMP
SWITCH
COMPARATOR
+
Nȍ
ON/OFF
52kHz
OSCILLATOR
DRIVER
THERMAL
SHUTDOWN
RESET
CURRENT
LIMIT
Note: Pin numbers are for the TO-220 package.
LM2576
Adjustable Regulator Version
VIN
INTERNAL
REGULATOR
1
ON/OFF
FIXED GAIN
ERROR AMP
FEEDBACK
4
-
1.23V
BAND-GAP
REFERENCE
2019 Microchip Technology Inc.
3 AMP
SWITCH
COMPARATOR
+
+
-
52kHz
OSCILLATOR
DRIVER
RESET
THERMAL
SHUTDOWN
CURRENT
LIMIT
DS20006238A-page 3
LM2576
1.0
ELECTRICAL CHARACTERISTICS
Absolute Maximum Ratings †
Maximum Supply Voltage......................................................................................................................................... +45V
ON/OFF Pin Input Voltage.................................................................................................................... –0.3V ≤ V ≤ +40V
Output Voltage to Ground........................................................................................................................................... –1V
Power Dissipation...................................................................................................................................Internally Limited
ESD Rating (Note 1)
C = 100 pF, R = 1.5 kΩ...............................................................................................................................................2 kV
FB Pin.........................................................................................................................................................................1 kV
Operating Ratings ††
Supply Voltage (VIN)................................................................................................................................................. +40V
† Notice: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device.
This is a stress rating only and functional operation of the device at those or any other conditions above those indicated
in the operational sections of this specification is not intended. Exposure to maximum rating conditions for extended
periods may affect device reliability.
†† Notice: The device is not guaranteed to function outside its operating ratings.
Note 1: Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5 kΩ in series with
100 pF.
ELECTRICAL CHARACTERISTICS
Specifications with standard typeface are for TJ = +25°C, bold values are valid for –40°C ≤ TJ ≤ +125°C. Unless
otherwise specified, VIN = 12V, and ILOAD = 500 mA. Note 1
Parameter
Sym.
Min.
Typ.
Max.
Units
Conditions
System Parameters, Adjustable Regulators (Note 2) Test Circuit Figure 4-1
Feedback Voltage
VOUT
Feedback Voltage
LM2576
VOUT
Efficiency
ɳ
1.217
1.230
1.243
1.193
1.230
1.267
1.180
—
1.280
—
82
—
V
VIN = 12V, ILOAD = 0.5A, VOUT = 5V
V
0.5A ≤ ILOAD ≤ 3A, 8V ≤ VIN ≤ 40V,
VOUT = 5V
%
VIN = 12V, ILOAD = 3A, VOUT = 5V
V
VIN = 12V, ILOAD = 0.5A, VOUT =
3.3V
V
0.5A ≤ ILOAD ≤ 3A, 6V ≤ VIN ≤ 40V,
VOUT = 3.3V
%
VIN = 12V, ILOAD = 3A
V
VIN = 12V, ILOAD = 0.5A, VOUT =
5.0V
V
0.5A ≤ ILOAD ≤ 3A, 8V ≤ VIN ≤ 40V,
VOUT = 5.0V
System Parameters, 3.3V Regulators (Note 2) Test Circuit Figure 4-1
Output Voltage
VOUT
Output voltage
LM2576-3.3
VOUT
Efficiency
ɳ
3.234
3.3
3.363
3.168
3.3
3.432
3.135
—
3.465
—
75
—
System Parameters, 5V Regulators (Note 2) Test Circuit Figure 4-1
Output Voltage
VOUT
Output voltage
LM2576-5.0
VOUT
Note 1:
2:
3:
4:
5:
4.900
5.0
5.100
4.800
5.0
5.200
4.750
—
5.250
Specification for packaged product only.
External components such as the catch diode, inductor, input and output capacitors can affect switching
regulator system performance. When the LM2576/LM1576 is used as shown in Figure 4-1 test circuit, system performance will be shown in system parameters section of Electrical Characteristics.
Output (pin 2) sourcing current. No diode, inductor or capacitor connected to output.
Feedback (pin 4) removed from output and connected to 0V.
Feedback (pin 4) removed from output and connected to 12V to force the output transistor OFF.
DS20006238A-page 4
2019 Microchip Technology Inc.
LM2576
ELECTRICAL CHARACTERISTICS (CONTINUED)
Specifications with standard typeface are for TJ = +25°C, bold values are valid for –40°C ≤ TJ ≤ +125°C. Unless
otherwise specified, VIN = 12V, and ILOAD = 500 mA. Note 1
Parameter
Sym.
Min.
Typ.
Max.
Units
ɳ
—
82
—
%
VIN = 12V, ILOAD = 3A
V
VIN = 25V, ILOAD = 0.5A, VOUT =
12V
V
0.5A ≤ ILOAD ≤ 3A, 15V ≤ VIN ≤ 40V,
VOUT = 12V
Efficiency
Conditions
System Parameters, 12V Regulators (Note 2) Test Circuit Figure 4-1
Output Voltage
VOUT
Output voltage
LM2576-12
VOUT
Efficiency
ɳ
11.760
12.0
12.240
11.520
12.0
12.480
11.400
—
12.600
—
88
—
%
VIN = 25V, ILOAD = 3A
50
500
nA
VOUT = 5V
kHz
—
Device Parameters, Adjustable Regulator
Feedback Bias Current
IB
100
Device Parameters, Fixed and Adjustable Regulators
Oscillator Frequency
Saturation Voltage
fO
VSAT
Max. Duty Cycle (ON)
DC
Current Limit
ILIM
Output Leakage Current
IL
47
52
58
42
—
63
—
1.4
1.8
—
—
2.0
93
98
—
4.2
5.8
6.9
3.5
—
7.5
—
—
2
—
7.5
—
—
—
30
V
IOUT = 3A, Note 3
%
Note 4
A
Peak current, tON ≤ 3 μs, Note 3
VIN = 40V, Note 5, Output = 0V
mA
Output = –1V
Note 5, Output = –1V
Quiescent Current
IQ
—
5
10
mA
Note 5
Standby Quiescent
Current
ISTBY
—
50
200
μA
ON/OFF Pin = 5V (OFF)
On/Off Control, Fixed and Adjustable Regulators, Test Circuit Figure 4-1
ON/OFF Pin Logic Input
Level
VIH
2.2
1.4
2.4
VIL
1.0
1.2
0.8
ON/OFF Pin Logic
Current
IIH
—
4
30
IIL
—
0.01
10
Note 1:
2:
3:
4:
5:
V
μA
VOUT = 0V
VOUT = 5V
ON/OFF Pin = 5V (OFF)
ON/OFF Pin = 0V (ON)
Specification for packaged product only.
External components such as the catch diode, inductor, input and output capacitors can affect switching
regulator system performance. When the LM2576/LM1576 is used as shown in Figure 4-1 test circuit, system performance will be shown in system parameters section of Electrical Characteristics.
Output (pin 2) sourcing current. No diode, inductor or capacitor connected to output.
Feedback (pin 4) removed from output and connected to 0V.
Feedback (pin 4) removed from output and connected to 12V to force the output transistor OFF.
2019 Microchip Technology Inc.
DS20006238A-page 5
LM2576
TEMPERATURE SPECIFICATIONS
Parameters
Sym.
Min.
Typ.
Max.
Units
Conditions
Temperature Ranges
Maximum Junction Temperature
TJ
—
—
+150
°C
—
Storage Temperature Range
TS
–65
—
+150
°C
—
Lead Temperature
—
—
—
+260
°C
Soldering, 10 sec.
Operating Temperature Range
TA
–40
—
+125
°C
—
Thermal Resistance, TO-220, TO-263
θJA
—
65
—
°C/W
Junction-to-Ambient,
Note 2
Thermal Resistance, TO-220, TO-263
θJA
—
45
—
°C/W
Junction-to-Ambient,
Note 3
Thermal Resistance, TO-220, TO-263
θJC
—
2
—
°C/W
Junction-to-Case
Package Thermal Resistance
Note 1:
2:
3:
4:
The maximum allowable power dissipation is a function of ambient temperature, the maximum allowable
junction temperature and the thermal resistance from junction to air (i.e., TA, TJ, JA). Exceeding the
maximum allowable power dissipation will cause the device operating junction temperature to exceed the
maximum +125°C rating. Sustained junction temperatures above +125°C can impact the device reliability.
Junction to ambient thermal resistance (no external heat sink) for the 5-lead TO-220 package mounted
vertically, with 1/2" leads in a socket, or on PC board with minimum copper area.
Junction to ambient thermal resistance (no external heat sink) for the 5-lead TO-220 package mounted
vertically, with 1/4" leads soldered to PC board containing approximately 4 square inches of copper area
surrounding the leads.
Junction to ambient thermal resistance with approximately 1 square inch of PC board copper surrounding
the leads. Additional copper will lower thermal resistance further.
DS20006238A-page 6
2019 Microchip Technology Inc.
LM2576
2.0
Note:
TYPICAL PERFORMANCE CURVES
The graphs and tables provided following this note are a statistical summary based on a limited number of
samples and are provided for informational purposes only. The performance characteristics listed herein
are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified
operating range (e.g., outside specified power supply range) and therefore outside the warranted range.
FIGURE 2-1:
Supply Current.
FIGURE 2-4:
Current Limit.
FIGURE 2-2:
Cycle.
Supply Current vs. Duty
FIGURE 2-5:
Efficiency.
FIGURE 2-3:
Standby Quiescent Current.
FIGURE 2-6:
Minimum Operating Voltage.
2019 Microchip Technology Inc.
DS20006238A-page 7
LM2576
FIGURE 2-7:
Line Regulation.
FIGURE 2-10:
Oscillator Frequency.
FIGURE 2-8:
Feedback Pin Current.
FIGURE 2-11:
Dropout Voltage.
FIGURE 2-9:
Normalized Output Voltage.
FIGURE 2-12:
Normalized Feedback
Voltage (Adjustable Version Only).
DS20006238A-page 8
2019 Microchip Technology Inc.
LM2576
FIGURE 2-13:
Feedback Voltage vs. Duty
Cycle (Adjustable Version Only).
FIGURE 2-14:
Load Transient Response.
FIGURE 2-15:
Switching Waveforms.
2019 Microchip Technology Inc.
DS20006238A-page 9
LM2576
3.0
PIN DESCRIPTIONS
The descriptions of the pins are listed in Table 3-1.
TABLE 3-1:
Pin Number
PIN FUNCTION TABLE
Pin Name
1
VIN
2
OUTPUT
3
GND
4
FB
5
ON/OFF
DS20006238A-page 10
Description
Supply input. Requires bypass capacitor to GND.
Switch output. Internal MOSFET switch output.
Ground.
Feedback. For fixed output versions, connect to the output. For adjustable versions,
connect to external resistive divider to set output voltage.
Enable. Logic low enables operation. Logic high shuts down the regulator. Do not leave
floating.
2019 Microchip Technology Inc.
LM2576
4.0
TEST CIRCUIT
As in any switching regulator, layout is very important. Rapidly switching currents associated with wiring inductance
generate voltage transients which can cause problems. For minimal stray inductance and ground loops, the length of
the leads indicated by heavy lines should be kept as short as possible. Single point grounding (as indicated) or
grounding plane construction should be used for best results.
FEEDBACK
+VIN
4
LM2576
7V - 40V
UNREGULATED
DC INPUT
+
100μF
GND 3
ON/OFF 5
VOUT
5V
L1
OUTPUT
1
100μH
2
+
D1
MBR360
CIN
R2
COUT
470μF
R1
L
O
A
D
CIN – 100μF, 75V Aluminum Electrolytic
COUT – 470μF, 15V Aluminum Electrolytic
D1 – Schottky, MBR360
L1 – 100μH, Pulse Eng. PE-92108
5±Nȍ
5±Nȍ
5-pin TO-220 socket – 2936 (Loranger Mfg. Co.)
4-pin TO-3 socket – 8112-AG7 (Augat Inc.)
FEEDBACK
+VIN
4
LM2576-5.0
OUTPUT
1
7V - 40V
UNREGULATED
DC INPUT
+
100μF
GND
3
ON/OFF 5
2
100μH
D1
11DQ06
CIN
VOUT
5V
L1
+
COUT
330μF
L
O
A
D
CIN – 100μF, 75V Aluminum Electrolytic
COUT – 300μF, 15V Aluminum Electrolytic
D1 – Schottky, 11DQ06
L1 – 100μH, Pulse Eng. PE-92108
5-pin TO-220 socket – 2936 (Loranger Mfg. Co.)
4-pin TO-3 socket – 8112-AG7 (Augat Inc.)
Note: Pin numbers are for TO-220 package.
FIGURE 4-1:
Test Circuit.
2019 Microchip Technology Inc.
DS20006238A-page 11
LM2576
5.0
PACKAGING INFORMATION
5.1
Package Marking Information
5-Lead TO-220*
5-Lead TO-263*
(Fixed Versions)
XXXXXX
X.XXX
WNNNP XXX
5-Lead TO-220*
5-Lead TO-263*
(Adj. Versions)
XXXXXX
XXXXXXXX
WNNNP XXX
Legend: XX...X
Y
YY
WW
NNN
e3
*
Example
LM2576
5.0WU
6710P 576
Example
MICREL
LM2576WT
1971P 576
Product code or customer-specific information
Year code (last digit of calendar year)
Year code (last 2 digits of calendar year)
Week code (week of January 1 is week ‘01’)
Alphanumeric traceability code
Pb-free JEDEC® designator for Matte Tin (Sn)
This package is Pb-free. The Pb-free JEDEC designator ( e3 )
can be found on the outer packaging for this package.
●, ▲, ▼ Pin one index is identified by a dot, delta up, or delta down (triangle
mark).
Note:
In the event the full Microchip part number cannot be marked on one line, it will
be carried over to the next line, thus limiting the number of available
characters for customer-specific information. Package may or may not include
the corporate logo.
Underbar (_) and/or Overbar (‾) symbol may not be to scale.
DS20006238A-page 12
2019 Microchip Technology Inc.
LM2576
5-Lead TO-220 Package Outline and Recommended Land Pattern
5-Lead Transistor Outline Type LB03 (B8X) - [TO-220]
Micrel Legacy Package TO220-LB03-5LD-PL-1
Note:
For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
E
A
B SEATING
PLANE
E
2
(E1)
(E2)
A1
A
Q
ș1
ØP
(D2)
D
D1
ș1
ș2
L
1
2
3
4
5
c
e
A2
TOP VIEW
5X b
0.15
B A
SIDE VIEW
BOTTOM VIEW
ș2
END VIEW
Microchip Technology Drawing C04-036 Rev C Sheet 1 of 2
2019 Microchip Technology Inc.
DS20006238A-page 13
LM2576
5-Lead Transistor Outline Type LB03 (B8X) - [TO-220]
Micrel Legacy Package TO220-LB03-5LD-PL-1
Note:
For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
Dimension Limits
Number of Leads
N
e
Pitch
Overall Height
A
Tab Height
A1
Seating Plane to Lead
A2
b
Lead Width
c
Lead Thickness
Lead Length
L
Total Body Length Including Tab
D
Molded Body Length
D1
Total Width
E
Pad Width
E1
Pad Length
D2
Hole Diameter
ØP
Q
Hole Center to Tab Edge
ș2
Molded Body Draft Angle
ș2
Molded Body Draft Angle
Min
.160
.045
.080
.025
.012
.500
.542
.348
.380
.146
.103
3
1
INCHES
Nom
5
.067 BSC
.175
.050
.098
.033
.016
.540
.580
.354
.400
0.256 REF
0.486 REF
.151
.108
7
4
Max
.190
.055
.115
.040
.020
.580
.619
.360
.420
.156
.113
10
7
Notes:
1. Pin 1 visual index feature may vary, but must be located within the hatched area.
2. Dimensioning and tolerancing per ASME Y14.5M
BSC: Basic Dimension. Theoretically exact value shown without tolerances.
REF: Reference Dimension, usually without tolerance, for information purposes only.
Microchip Technology Drawing C04-036 Rev C Sheet 2 of 2
DS20006238A-page 14
2019 Microchip Technology Inc.
LM2576
5-Lead TO-263 Package Outline and Recommended Land Pattern
Note:
For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging.
2019 Microchip Technology Inc.
DS20006238A-page 15
LM2576
NOTES:
DS20006238A-page 16
2019 Microchip Technology Inc.
LM2576
APPENDIX A:
REVISION HISTORY
Revision A (August 2019)
• Converted Micrel document LM2576 to Microchip
data sheet template DS20006238A.
• Minor grammatical text changes throughout.
2019 Microchip Technology Inc.
DS20006238A-page 17
LM2576
NOTES:
DS20006238A-page 18
2019 Microchip Technology Inc.
LM2576
PRODUCT IDENTIFICATION SYSTEM
To order or obtain information, e.g., on pricing or delivery, contact your local Microchip representative or sales office.
Examples:
Device
-X.X
X
X
-XX
Part No.
Output
Voltage
Junction
Temp. Range
Package
Media Type
Device:
LM2576:
Output Voltage:
= Adjustable
3.3
= 3.3V
5.0
= 5.0V
12
= 12V
a) LM2576WT:
LM2576, Adj. Output Voltage,
–40°C to +125°C Temp. Range,
5-Lead TO-220, 50/Tube
b) LM2576-3.3WT:
LM2576, 3.3V Output Voltage,
–40°C to +125°C Temp. Range,
5-Lead TO-220, 50/Tube
c) LM2576-5.0WT:
LM2576, 5.0V Output Voltage,
–40°C to +125°C Temp. Range,
5-Lead TO-220, 50/Tube
d) LM2576-12WT:
LM2576, 12V Output Voltage,
–40°C to +125°C Temp. Range,
5-Lead TO-220, 50/Tube
e) LM2576WU:
LM2576, Adj. Output Voltage,
–40°C to +125°C Temp. Range,
5-Lead TO-263, 50/Tube
f) LM2576-3.3WU:
LM2576, 3.3V Output Voltage,
–40°C to +125°C Temp. Range,
5-Lead TO-263, 50/Tube
g) LM2576-5.0WU:
LM2576, 5.0V Output Voltage,
–40°C to +125°C Temp. Range,
5-Lead TO-263, 50/Tube
h) LM2576-12WU:
LM2576, 12V Output Voltage,
–40°C to +125°C Temp. Range,
5-Lead TO-263, 50/Tube
i) LM2576WU-TR:
LM2576, Adj. Output Voltage,
–40°C to +125°C Temp. Range,
5-Lead TO-263, 750/Reel
j) LM2576-3.3WU-TR:
LM2576, 3.3V Output Voltage,
–40°C to +125°C Temp. Range,
5-Lead TO-263, 750/Reel
k) LM2576-5.0WU-TR:
LM2576, 5.0V Output Voltage,
–40°C to +125°C Temp. Range,
5-Lead TO-263, 750/Reel
l) LM2576-12WU-TR:
LM2576, 12V Output Voltage,
–40°C to +125°C Temp. Range,
5-Lead TO-263, 750/Reel
52 kHz Simple 3A Buck Regulator
Junction
Temperature
Range:
W
=
–40°C to +125°C, RoHS-Compliant
Package:
T
U
=
=
5-Lead TO-220
5-Lead TO-263
Media Type:
= 50/Tube
TR =
750/Reel
Note 1:
2019 Microchip Technology Inc.
Tape and Reel identifier only appears in the
catalog part number description. This identifier is
used for ordering purposes and is not printed on
the device package. Check with your Microchip
Sales Office for package availability with the
Tape and Reel option.
DS20006238A-page 19
LM2576
NOTES:
DS20006238A-page 20
2019 Microchip Technology Inc.
Note the following details of the code protection feature on Microchip devices:
•
Microchip products meet the specification contained in their particular Microchip Data Sheet.
•
Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the
intended manner and under normal conditions.
•
There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our
knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data
Sheets. Most likely, the person doing so is engaged in theft of intellectual property.
•
Microchip is willing to work with the customer who is concerned about the integrity of their code.
•
Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not
mean that we are guaranteeing the product as “unbreakable.”
Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our
products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts
allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.
Information contained in this publication regarding device
applications and the like is provided only for your convenience
and may be superseded by updates. It is your responsibility to
ensure that your application meets with your specifications.
MICROCHIP MAKES NO REPRESENTATIONS OR
WARRANTIES OF ANY KIND WHETHER EXPRESS OR
IMPLIED, WRITTEN OR ORAL, STATUTORY OR
OTHERWISE, RELATED TO THE INFORMATION,
INCLUDING BUT NOT LIMITED TO ITS CONDITION,
QUALITY, PERFORMANCE, MERCHANTABILITY OR
FITNESS FOR PURPOSE. Microchip disclaims all liability
arising from this information and its use. Use of Microchip
devices in life support and/or safety applications is entirely at
the buyer’s risk, and the buyer agrees to defend, indemnify and
hold harmless Microchip from any and all damages, claims,
suits, or expenses resulting from such use. No licenses are
conveyed, implicitly or otherwise, under any Microchip
intellectual property rights unless otherwise stated.
Trademarks
The Microchip name and logo, the Microchip logo, Adaptec,
AnyRate, AVR, AVR logo, AVR Freaks, BesTime, BitCloud, chipKIT,
chipKIT logo, CryptoMemory, CryptoRF, dsPIC, FlashFlex,
flexPWR, HELDO, IGLOO, JukeBlox, KeeLoq, Kleer, LANCheck,
LinkMD, maXStylus, maXTouch, MediaLB, megaAVR, Microsemi,
Microsemi logo, MOST, MOST logo, MPLAB, OptoLyzer,
PackeTime, PIC, picoPower, PICSTART, PIC32 logo, PolarFire,
Prochip Designer, QTouch, SAM-BA, SenGenuity, SpyNIC, SST,
SST Logo, SuperFlash, Symmetricom, SyncServer, Tachyon,
TempTrackr, TimeSource, tinyAVR, UNI/O, Vectron, and XMEGA
are registered trademarks of Microchip Technology Incorporated in
the U.S.A. and other countries.
APT, ClockWorks, The Embedded Control Solutions Company,
EtherSynch, FlashTec, Hyper Speed Control, HyperLight Load,
IntelliMOS, Libero, motorBench, mTouch, Powermite 3, Precision
Edge, ProASIC, ProASIC Plus, ProASIC Plus logo, Quiet-Wire,
SmartFusion, SyncWorld, Temux, TimeCesium, TimeHub,
TimePictra, TimeProvider, Vite, WinPath, and ZL are registered
trademarks of Microchip Technology Incorporated in the U.S.A.
Adjacent Key Suppression, AKS, Analog-for-the-Digital Age, Any
Capacitor, AnyIn, AnyOut, BlueSky, BodyCom, CodeGuard,
CryptoAuthentication, CryptoAutomotive, CryptoCompanion,
CryptoController, dsPICDEM, dsPICDEM.net, Dynamic Average
Matching, DAM, ECAN, EtherGREEN, In-Circuit Serial
Programming, ICSP, INICnet, Inter-Chip Connectivity, JitterBlocker,
KleerNet, KleerNet logo, memBrain, Mindi, MiWi, MPASM, MPF,
MPLAB Certified logo, MPLIB, MPLINK, MultiTRAK, NetDetach,
Omniscient Code Generation, PICDEM, PICDEM.net, PICkit,
PICtail, PowerSmart, PureSilicon, QMatrix, REAL ICE, Ripple
Blocker, SAM-ICE, Serial Quad I/O, SMART-I.S., SQI,
SuperSwitcher, SuperSwitcher II, Total Endurance, TSHARC,
USBCheck, VariSense, ViewSpan, WiperLock, Wireless DNA, and
ZENA are trademarks of Microchip Technology Incorporated in the
U.S.A. and other countries.
SQTP is a service mark of Microchip Technology Incorporated in
the U.S.A.
The Adaptec logo, Frequency on Demand, Silicon Storage
Technology, and Symmcom are registered trademarks of Microchip
Technology Inc. in other countries.
GestIC is a registered trademark of Microchip Technology Germany
II GmbH & Co. KG, a subsidiary of Microchip Technology Inc., in
other countries.
All other trademarks mentioned herein are property of their
respective companies.
© 2019, Microchip Technology Incorporated, All Rights Reserved.
For information regarding Microchip’s Quality Management Systems,
please visit www.microchip.com/quality.
2019 Microchip Technology Inc.
ISBN: 978-1-5224-4901-0
DS20006238A-page 21
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DS20006238A-page 22
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2019 Microchip Technology Inc.
05/14/19
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