MIC29302A
3A Fast-Response LDO Regulator
Super ßeta PNP is a registered trademark of Micrel, Inc.
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
General Description
The MIC29302A is a high-current, low-cost, low-dropout
voltage regulator which uses Micrel's proprietary Super
βeta PNP® process with a PNP pass element. The 3A
LDO regulator features 450mV (full load) dropout voltage
and very low ground current. Designed for high-current
loads, these devices also find applications in lower current,
low dropout-critical systems, where their dropout voltage
and ground current values are important attributes.
Along with a total accuracy of ±2% (over temperature, line
and load regulation) the regulator features very-fast
transient recovery from input voltage surges and output
load current changes.
The MIC29302A has an adjustable output which can be
set by two external resistors to a voltage between 1.24V to
15V. In addition, the device is fully protected against over
current faults, reversed input polarity, reversed lead
insertion, and overtemperature operation. A TTL logic
enable (EN) pin is available in the MIC29302A to
shutdown the regulator. When not used, the device can be
set to continuous operation by connecting EN to the input
(IN). The MIC29302A is available in the standard and 5-pin
TO-263 and TO-252 packages with an operating junction
temperature range of −40°C to +125°C.
Data sheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
Features
• High-current capability
− 3A over full temperature range
• Low-dropout voltage of 450mV at full load
• Low ground current
• Accurate 1% guaranteed tolerance
• Extremely-fast transient response
• Zero-current shutdown mode
• Error flag signals output out-of-regulation
• Adjustable output voltage
• Packages: TO-263-5L and TO-252-5L
Applications
• Processor peripheral and I/O supplies
• High-efficiency “Green” computer systems
• Automotive electronics
• High-efficiency linear lower supplies
• Battery-powered equipment
• PC add-in cards
• High-efficiency lost-regulator for switching supply
_________________________________________________________________________________________________________________________
Typical Application
⎟
⎠
⎞
⎜
⎝
⎛+×= 1
R2
R1
1.242VOUT
Dropout Voltage
vs. Output Current
0
100
200
300
400
500
0.0 0.5 1.0 1.5 2.0 2.5 3.0
OUTPUT CURRENT (A)
DROPOUT VOLTAGE (mV)
V
IN
= 3.3V
V
ADJ
= 0V
T
A
= 25ºC
MIC29302A Adjustable Output Regulator
August 2011
M9999-080411-A
Micrel, Inc. MIC29302A
August 2011 2 M9999-080411-A
Ordering Information
Part Number Voltage Junction Temperature Range Package
MIC29302AWU Adjustable –40°C to +125°C 5-Pin TO-263
MIC29302AWD Adjustable –40°C to +125°C 5-Pin TO-252
Pin Configuration
5-Pin TO-263 (D2Pak) Adjustable Voltage (U)
MIC29302AWU
5-Pin TO-252 (D-Pak) Adjustable Voltage (D)
MIC29302AWD
Pin Description
Pin Number
TO-263
Pin Number
TO-252 Pin Name Pin Name
1 1 EN Enable (Input): Active-high CMOS compatible control input. Do not float.
2 2 IN INPUT: Unregulated input, +2.8V to +16V maximum
3, TAB 3, TAB GND GND: TAB is also connected internally to the IC’s ground on both packages.
4 4 OUT OUTPUT: The regulator output voltage
5 5 ADJ Feedback Voltage: 1.24V feedback from external resistor divider.
Micrel, Inc. MIC29302A
August 2011 3 M9999-080411-A
Absolute Maximum Ratings(1)
Input Supply Voltage (VIN)(1) ........................... –20V to +20V
Enable Input Voltage (VEN)................................ –0.3V to VIN
Lead Temperature (soldering, 5sec.)......................... 260°C
Power Dissipation .....................................Internally Limited
Storage Temperature Range ....................–65°C to +150°C
ESD Rating all pins(3)
Operating Ratings(2)
Operating Junction Temperature .............. −40°C to +125°C
Operating Input Voltage ....................................... 3V to 16V
Package Thermal Resistance
TO-263 (θJC).........................................................3°C/W
TO-252 (θJC).........................................................3°C/W
TO-252 (θJA) ......................................................35°C/W
TO-263 (θJA).......................................................28°C/W
Electrical Characteristics(4)
VIN = 4.2V; IOUT = 100mA; TA = 25°C, bold values indicate −40°C≤ TJ ≤ +125°C, unless noted.
Parameter Condition Min. Typ. Max. Units
Output Voltage
Output Voltage Accuracy 100mA ≤ IOUT ≤3A, (VOUT + 1V) ≤ VIN ≤ 16V −2 2 %
Line Regulation IOUT = 100mA, (VOUT + 1V) ≤ VIN ≤ 16V 0.1 0.5 %
Load Regulation VIN = VOUT + 1V, 100mA ≤ IOUT ≤ 3A 0.2 1 %
ΔVOUT = −1%(6)
IOUT = 100mA 80 200
IOUT = 750mA 220
IOUT = 1.5A 275
Dropout Voltage
IOUT = 3A 450 800
mV
Ground Current
IOUT = 750mA, VIN = VOUT + 1V 5 20
IOUT = 1.5A 15
Ground Current
IOUT = 3A 60 150
mA
IGRNDDO Ground Pin Current
@ Dropout VIN = 0.5V less than specified VOUT × IOUT = 10mA 2
Current Limit VOUT = 0V(7) 3 4 A
en, Output Noise Voltage
(10Hz to 100kHz CL = 10µF 400
IL = 100mA CL = 33 µF 260
µV
(rms)
Ground Pin Current in Shutdown Input Voltage VIN = 16V 32 µA
Micrel, Inc. MIC29302A
August 2011 4 M9999-080411-A
Electrical Characteristics(4) (Continued)
VIN = 4.2V; IOUT = 10mA; TA = 25°C, bold values indicate −40°C≤ TJ ≤ +125°C, unless noted.
Reference
Reference Voltage (8) 1.215 1.267 V
40
Adjust Pin Bias Current
120 nA
ENABLE Input
Low (OFF) 0.8
Input Logic Voltage High (ON) 2.4 V
15 30
VEN = 8V
75
2
Enable Pin Input Current
VEN = 0.8V 4
µA
10
Regulator Output Current
in Shutdown
(10)
20 µA
Notes:
1. Exceeding the absolute maximum rating may damage the device.
2. The device is not guaranteed to function outside its operating rating.
3. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF.
4. Specification for packaged product only
5. Output voltage temperature coefficient is defined as the worst case voltage change divided by the total temperature change.
6. Dropout voltage is defined as the input-to-output differential when output voltage drops to 99% of its normal value with VOUT + 1V applied to VIN.
7. VIN =VOUT (nominal) + 1V. For example, use VIN = 4.3V for a 3.3Vregulator or use 6V for a 5V regulator. Employ pulse testing procedure for current limit.
8. VREF ≤ VOUT ≤ VIN -1, 3V ≤ VOUT ≤ 16V, 10mA ≤ IL ≤ IFL, TJ ≤ TJmax.
9. Thermal regulation is defined as the change in the output voltage at a time T after a change in power dissipation is applied, excluding load or line
regulation effects. Specifications are for a 250mA load pulse at VIN =16V (a 4W pulse) for T= 10ms.
10. VEN ≤ 0.8V, VIN ≤ 16V and VOUT = 0V.
Micrel, Inc. MIC29302A
August 2011 5 M9999-080411-A
Typical Characteristics
Dropout Voltage
vs. Input Voltage
0
100
200
300
400
500
04812
INPUT VOLTAGE (V)
DROPOUT VOLTAGE (mV)
16
I
OUT
= 3A
I
OUT
= 1.0A
GND Pin Current
vs. Input Voltage
0.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
04812
INPUT VOLTAGE (V)
GROUND CURRENT (mA)
16
I
OUT
= 3A
Adjust Pin Voltage
vs. Input Voltage
1.230
1.235
1.240
1.245
1.250
04812
INPUT VOLTAGE (V)
ADJ PIN VOLTAGE (V)
16
V
OUT
= 1.8V
I
OUT
= 3A
Adjust Pin Current
vs. Input Voltage
40
42
44
46
04812
INPUT VOLTAGE (V)
ADJ PIN CURRENT (nA)
16
I
LOAD
= 10mA
Load Regulation
vs. Input Voltage
0.000
0.100
0.200
0.300
04812
INPUT VOLTAGE (V)
LOAD REGULATION (%)
16
V
OUT
= 1.8V
I
OUT
= 10mA to 3A
Short-Circuit Current
vs. Input Voltage
0
2
4
6
8
10
0 4 8 12 16
INPUT VOLTAGE (V)
CURRENT LIMIT (A)
V
OUT
= 0V
Enable Pin Current
vs. Input Voltage
0.00
5.00
10.00
15.00
20.00
04812
INPUT VOLTAGE (V)
ENABLE PIN CURRENT (µA)
16
V
OUT
= 1.8V
I
OUT
= 10mA
V
EN
= V
IN
Output Voltage
vs. Input Voltage
1.240
1.241
1.242
1.243
04812
INPUT VOLTAGE (V)
OUTPUT VOLTAGE (V)
16
V
OUT
= 1.24V
I
OUT
= 10mA
Micrel, Inc. MIC29302A
August 2011 6 M9999-080411-A
Typical Characteristics (Continued)
GND Pin Current
vs. Temperature
0.00
2.00
4.00
6.00
8.00
10.00
-50 -25 0 25 50 75 100 125
TEMPERATURE (°C)
GROUND CURRENT (mA)
V
IN
=4.2V
V
OUT
= 1.8V
I
OUT
= 750mA
Enable Bias Current
vs. Temperature (B06)
0
5
10
15
20
25
30
-50 -25 0 25 50 75 100 125
TEMPERATURE (°C)
EN PIN CURRENT (nA)
V
IN
= V
EN
= 8V
V
OUT
= 2.5V
I
OUT
= 10mA
Dropout Voltage
vs. Temperature
0
100
200
300
400
500
600
-50 -25 0 25 50 75 100 125
TEMPERATURE (°C)
DROPOUT VOLTAGE (mV)
VIN = 4.2V
IOUT = 1.5A
IOUT = 3A
Dropout Voltage
vs. Temperature
0
100
200
300
400
-50 -25 0 25 50 75 100 125
TEMPERATURE (°C)
DROPOUT VOLTAGE (mV)
V
IN
= 4.2V
I
OUT
= 750mA
I
OUT
= 100mA
Short-Circuit Current
vs. Temperature
3.500
3.750
4.000
4.250
-50 -25 0 25 50 75 100 125
TEMPERATURE (°C)
CURRENT LIMIT (A)
V
IN
= 4.2V
V
OUT
= 0V
Adjust Pin Voltage
vs. Temperature
1.235
1.238
1.240
1.243
-50-25 0 255075100125
TEMPERATURE (°C)
ADJ PIN VOLTAGE (V)
V
IN
=4.2V
V
OUT
= 1.8V
I
OUT
= 10mA
Adjust Pin Current
vs. Temperature
0
20
40
60
80
-50 -25 0 25 50 75 100 125
TEMPERATURE (°C)
ADJ PIN CURRENT (nA)
V
IN
= 4.2V
I
LOAD
= 10mA
Line Regulation
vs. Temperature
0.0
0.1
0.2
0.3
0.4
0.5
-50 -25 0 25 50 75 100 125
TEMPERATURE (°C)
LINE REGULATION (%/V)
V
IN
= 3V to 16V
V
OUT
= 1.8V
I
OUT
= 10mA
Micrel, Inc. MIC29302A
August 2011 7 M9999-080411-A
Typical Characteristics (Continued)
Dropout Voltage
vs. Output Current
0
100
200
300
400
500
0.0 0.5 1.0 1.5 2.0 2.5 3.0
OUTPUT CURRENT (A)
DROPOUT VOLTAGE (mV)
V
IN
= 3V
V
ADJ
= 0V
A
DJUSTABLE OPTION
Dropout Voltage
vs. Output Current
0
100
200
300
400
500
0.0 0.5 1.0 1.5 2.0 2.5 3.0
OUTPUT CURRENT (A)
DROPOUT VOLTAGE (mV)
V
IN
= 4.2V
V
ADJ
= 0V
Adjust Pin Voltage
vs. Output Current
1.236
1.238
1.240
1.242
1.244
1.246
0.0 0.5 1.0 1.5 2.0 2.5 3.0
OUTPUT CURRENT (A)
ADJ PIN VOLTAGE (V)
V
IN
= 4.2V
V
OUT
= 1.8V
Line Regulation
vs. Output Current
-0.2
-0.1
0.0
0.1
0.2
0.0 0.5 1.0 1.5 2.0 2.5 3.0
OUTPUT CURRENT (A)
LINE REGULATION (%)
V
IN
= 4.2V to 16V
V
OUT
= 1.8V
GND Pin Current
vs. Output Current
0
10
20
30
40
50
60
70
0.0 0.5 1.0 1.5 2.0 2.5 3.0
OUTPUT CURRENT (A)
GROUND CURRENT (mA)
V
IN
= 4.2V
V
OUT
= 1.8V
Output Noise
vs. Frequency
0.001
0.01
0.1
1
10
100
1000
0.01 0.1 1 10 100 1000
FREQUENCY (kHz)
OUTPUT NOISE (µV/√Hz)
Noise Spectral
Density
V
IN
=3.3V
V
OUT
= 1.8V
I
OUT
= 3A
C
OUT
= 47µF
Ripple Rejection (I
OUT
= 10mA)
vs. Frequency
0
10
20
30
40
50
60
70
80
0.01 0.1 1 10 100 1000
FREQUENCY (kHz)
RIPPLE REJECTION (dB)
Gain (dB)
V
IN
=3.3V
V
OUT
= 1.8V
I
OUT
= 10mA
C
OUT
= 22µF
Ripple Rejection (I
OUT
= 1.5A)
vs. Frequency
0
10
20
30
40
50
60
70
80
0.01 0.1 1 10 100 1000
FREQUENCY (kHz)
RIPPLE REJECTION (dB)
Gain (dB)
V
IN
=3.3V
V
OUT
= 1.8V
I
OUT
= 1.5A
C
OUT
= 22µF
Ripple Rejection (I
OUT
= 3A)
vs. Frequency
0
10
20
30
40
50
60
70
80
0.01 0.1 1 10 100 1000
FREQUENCY (kHz)
RIPPLE REJECTION (dB)
Gain (dB)
V
IN
=3.3V
V
OUT
= 1.8V
I
OUT
= 3A
C
OUT
= 22µF
Micrel, Inc. MIC29302A
August 2011 8 M9999-080411-A
Functional Characteristics
Figure 2. MIC29302A Load Transient Response Test Circuit
Micrel, Inc. MIC29302A
August 2011 9 M9999-080411-A
Functional Diagram
Micrel, Inc. MIC29302A
August 2011 10 M9999-080411-A
Application Information
The MIC29302A is a high-performance, low-dropout
voltage regulator suitable for all moderate to high-current
voltage regulation applications. Its 450mV typical
dropout voltage at full load makes it especially valuable
in battery-powered systems and as high efficiency noise
filters in “post-regulator” applications. Unlike older NPN-
pass transistor designs, where the minimum dropout
voltage is limited by the base-emitter voltage drop and
collector-emitter saturation voltage, dropout performance
of the PNP output is limited merely by the low VCE
saturation voltage.
A trade-off for the low-dropout voltage is a varying base
driver requirement. But Micrel’s Super ßeta PNP®
process reduces this drive requirement to merely 1% of
the load current.
The MIC29302A regulator is fully protected from damage
due to fault conditions. Current limiting is linear; output
current under overload conditions is constant. Thermal
shutdown disables the device when the die temperature
exceeds the 125°C maximum safe operating
temperature. The output structure of the regulators
allows voltages in excess of the desired output voltage
to be applied without reverse current flow. The
MIC29302A offer a logic level ON/OFF control: when
disabled, the devices draw nearly zero current.
Figure 3. Linear Regulators Require Only Two Capacitors
for Operation
Thermal Design
Linear regulators are simple to use. The most
complicated set of design parameters to consider are
thermal characteristics. Thermal design requires the
following application-specific parameters:
• Maximum ambient temperature, TA
• Output Current, IOUT
• Output Voltage, VOUT
• Input Voltage, VIN
First, we calculate the power dissipation of the regulator
from these numbers and the device parameters from this
datasheet:
(
)
OUTINOUTD V1.02VIP −
=
Where the ground current is approximated by 2% of IOUT.
Then the heat sink thermal resistance is determined with
this formula:
()
CSJC
D
AJMAX
SA θθ
P
TT
θ+−
−
=
where:
TJMAX ≤ 125°C and θCS is between 0 and 2°C/W.
The heat sink may be significantly reduced in
applications where the minimum input voltage is known
and is large compared to the dropout voltage. A series
input resistor can be used to drop excessive voltage and
distribute the heat between this resistor and the
regulator. The low-dropout properties of Micrel Super
βeta PNP® regulators allow very significant reductions in
regulator power dissipation and the associated heat sink
without compromising performance. When this technique
is employed, a capacitor of at least 0.1µF is needed
directly between the input and regulator ground.
Please refer to Application Note 9 and Application Hint
17 on Micrel’s website (www.micrel.com) for further
details and examples on thermal design and heat sink
specification.
With no heat sink in the application, calculate the
junction temperature to determine the maximum power
dissipation that will be allowed before exceeding the
maximum junction temperature of the MIC29302A. The
maximum power allowed can be calculated using the
thermal resistance (θJA) of the D-Pak (TO252) adhering
to the following criteria for the PCB design: 2 oz. copper
and 100mm2 copper area for the MIC29302A.
For example, given an expected maximum ambient
temperature (TA) of 75°C with VIN = 3.3V, VOUT = 2.5V,
and IOUT = 1.5A, first calculate the expected PD using:
(
)()()
2.3472W0.016A3.3V3A2.5V3.3VP
D=×−×−=
Micrel, Inc. MIC29302A
August 2011 11 M9999-080411-A
For best performance the total resistance (R1+R2)
should be small enough to pass the minimum regulator
load current of 10mA.
Next, calcualte the junction temperature for the expected
power dissipation:
TJ = (θJA×PD) + TA = (35°C/W × 2.3472W)
+ 75°C = 157.15°C
Adjustable Regulator Design
The output voltage can be programmed anywhere
between 1.25V and the 15V. Two resistors are used.
The resistor values are calculated by:
Now determine the maximum power dissipation allowed
that would not exceed the IC’s maximum junction
temperature (125°C) without the use of a heat sink by:
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−×= 1
1.240
V
RR OUT
21
PD(MAX) = (TJ(MAX) – TA) / θJA
= (125°C – 75°C) / (35°C/W) where VOUT is the desired output voltage.
= 1.428W
Capacitor Requirements Figure 4 shows component definition. Applications with
widely varying load currents may scale the resistors to
draw the minimum load current required for proper
operation (see “Minimum Load Current” section).
For stability and minimum output noise, a capacitor on
the regulator output is necessary. The value of this
capacitor is dependent upon the output current; lower
currents allow smaller capacitors. The MIC29302A is
stable with a 10μF capacitor at full load.
This capacitor need not be an expensive low-ESR type;
aluminum electrolytics are adequate. In fact, extremely
low-ESR capacitors may contribute to instability.
Tantalum capacitors are recommended for systems
where fast load transient response is important.
When the regulator is powered from a source with high
AC impedance, a 0.1µF capacitor connected between
input and GND is recommended.
Transient Response and 5V to 3.3V Conversion
The MIC29302A has excellent response to variations in
input voltage and load current. By virtue of its low
dropout voltage, the device does not saturate into
dropout as readily as similar NPN-based designs. A 3.3V
output Micrel LDO will maintain full speed and
performance with an input supply as low as 4.2V, and
will still provide some regulation with supplies down to
3.8V, unlike NPN devices that require 5.1V or more for
good performance and become nothing more than a
resistor under 4.6V of input. Micrel’s PNP regulators
provide superior performance in “5V to 3.3V” conversion
applications than NPN regulators, especially when all
tolerances are considered.
Figure 4. Adjustable Regulator with Resistors
Enable Input
MIC29302A features an enable (EN) input that allows
ON/OFF control of the device. Special design allows
“zero” current drain when the device is disabled—only
microamperes of leakage current flows. The EN input
has TTL/CMOS compatible thresholds for simple
interfacing with logic, or may be directly tied to VIN.
Enabling the regulator requires approximately 20µA of
current into the EN pin.
Minimum Load Current
The MIC29302A regulator operates within a specified
load range. If the output current is too small, leakage
currents dominate and the output voltage rises.
A minimum load current of 10mA is necessary for proper
regulation and to swamp any expected leakage current
across the operating temperature range.
Micrel, Inc. MIC29302A
August 2011 12 M9999-080411-A
Evaluation Board Schematic
Micrel, Inc. MIC29302A
August 2011 13 M9999-080411-A
Bill of Materials
Item Part Number Manufacturer Description Qty.
C2012X5R0J106K TDK(1)
GRM2196R60J106K Murata(2)
C1
08056D106KAT2A Vishay(3)
10µF, 6.3V, Ceramic Capacitor, X5R, 0805 1
B45196H4106K309 Kemet(4)
C2,C3 TR3C106K020C0450 Vishay(3) 10µF, 20V, Tantalum Capacitor, 2312 2
C5 EEU-FM1C102 Panasonic(5) 1000µF, 16V, Elect Capacitor, through hole, 10X20-case 1
T495D107K016ATE125 Kemet(4)
C6 TR3D107K016C0125 Vishay(3) 100µF, 20V, Tantalum Capacitor, 2917 1
R1 CRCW06031K00FKTA Vishay(3) 1K, Resistor, 1%, 0603 1
R2 Open (CRCW06031002FRT1) Vishay(3) 10K, Resistor, 1%, 0603 1
R3 CRCW06038061FRT1 Vishay(3) 8.06K, Resistor, 1%, 0603 1
R4 CRCW06034751FRT1 Vishay(3) 4.75K, Resistor, 1%, 0603 1
R5 CRCW06033241FRT1 Vishay(3) 3.24K, Resistor, 1%, 0603 1
R6 CRCW06031911RFRT1 Vishay(3) 1.91k, Resistor, 1%, 0603 1
R7 CRCW06030000FKTA Vishay(3) 0Ω, Resistor, 1%, 0603 1
R8 CRCW060350R0FRT1 Vishay(3) 50Ω, Resistor, 1%, 0603 1
U1 MIC29302AWU Micrel(6) 3A Fast-Response LDO Regulator 1
Notes:
1. TDK: www.tdk.com.
2. Murata: www.murata.com.
3. Vishay: www.vishay.com.
4. Kemet: www.kemet.com.
5. Panasonic.: www.panasonic.com.
6. Micrel, Inc.: www.micrel.com.
Micrel, Inc. MIC29302A
August 2011 14 M9999-080411-A
PCB Layout Recommendations
MIC29302A Evaluation Board Top Layer
MIC29302A Evaluation Board Top Silk
Micrel, Inc. MIC29302A
August 2011 15 M9999-080411-A
PCB Layout Recommendations (Continued)
MIC29302A Evaluation Board Bottom Layer
MIC29302A Evaluation Board Bottom Silk
Micrel, Inc. MIC29302A
August 2011 16 M9999-080411-A
Package Information
5-Pin TO-263 (U)
Micrel, Inc. MIC29302A
August 2011 17 M9999-080411-A
Package Information (Continued)
5-Pin TO-252 (D)
Micrel, Inc. MIC29302A
August 2011 18 M9999-080411-A
Recommended Landing Pattern
5-Pin TO-263 (U)
Micrel, Inc. MIC29302A
August 2011 19 M9999-080411-A
Recommended Landing Pattern (Continued)
5-Pin TO-252 (D)
Micrel, Inc. MIC29302A
August 2011 20 M9999-080411-A
MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA
TEL +1 (408) 944-0800 FAX +1 (408) 474-1000 WEB http://www.micrel.com
Micrel makes no representations or warranties with respect to the accuracy or completeness of the information furnished in this data sheet. This
information is not intended as a warranty and Micrel does not assume responsibility for its use. Micrel reserves the right to change circuitry,
specifications and descriptions at any time without notice. No license, whether express, implied, arising by estoppel or otherwise, to any intellectual
property rights is granted by this document. Except as provided in Micrel’s terms and conditions of sale for such products, Micrel assumes no liability
whatsoever, and Micrel disclaims any express or implied warranty relating to the sale and/or use of Micrel products including liability or warranties
relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright or other intellectual property right.
Micrel Products are not designed or authorized for use as components in life support appliances, devices or systems where malfunction of a product
can reasonably be expected to result in personal injury. Life support devices or systems are devices or systems that (a) are intended for surgical implant
into the body or (b) support or sustain life, and whose failure to perform can be reasonably expected to result in a significant injury to the user. A
Purchaser’s use or sale of Micrel Products for use in life support appliances, devices or systems is a Purchaser’s own risk and Purchaser agrees to fully
indemnify Micrel for any damages resulting from such use or sale.
© 2011 Micrel, Incorporated.
