NOT RECOMMENDED FOR NEW DESIGN
USE AP3428
AUR9703
1.5MHz, 800mA, STEP DOWN DC-DC CONVERTER
Description
Pin Assignments
The AUR9703 is a high efficiency step-down DC-DC voltage
converter. The chip operation is optimized using constant frequency,
peak-current mode architecture with built-in synchronous power
MOSFET switchers and internal compensators to reduce external
part counts. It is automatically switching between the normal PWM
mode and LDO mode to offer improved system power efficiency
covering a wide range of loading conditions.
(Top View)
The oscillator and timing capacitors are all built-in providing an
EN
1
GND
2
LX
3
internal switching frequency of 1.5MHz that allows the use of small
surface mount inductors and capacitors for portable product
implementations. Additional features included Soft Start (SS), Under
Voltage Lock Out (UVLO), and Thermal Shutdown Detection (TSD) to
provide reliable product applications.
5
FB
4
VIN
TSOT-23-5
The device is available in adjustable output voltage versions ranging
from 1V to 3.3V, and is able to deliver up to 800mA.
Applications
The AUR9703 is available in TSOT-23-5 package.
Mobile Phone, Digital Camera and MP3 Player
Headset, Radio and Other Hand-held Instrument
Features
Post DC-DC Voltage Regulation
High Efficiency Buck Power Converter
PDA and Notebook Computer
Low Quiescent Current
Output Current: 800mA
Adjustable Output Voltage from 1V to 3.3V
Wide Operating Voltage Range: 2.5V to 5.5V
Built-In Power Switches for Synchronous Rectification with High
Efficiency
Feedback Voltage: 600mV
1.5MHz Constant Frequency Operation
Automatic PWM/LDO Mode Switching Control
Thermal Shutdown Protection
Low Drop-out Operation at 100% Duty Cycle
No Schottky Diode Required
AUR9703
Document number: DS41588 Rev. 2 - 3
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AUR9703
Typical Applications Circuit (Note 1)
R2
IR2
1
EN
R1
FB
5
C1
2
GND
L 2.2μH
VOUT
3
VIN=2.5V to 5.5V
LX
VIN
4
CIN
4.7mF
COUT
10mF
Note 1:
VOUT 1 VREF (1
R1
)
R2
When R2 = 300kΩ to 60kΩ, the IR2 = 2µA to 10µA, and R1×C1 should be in the range between 3×10-6 and 6×10-6 for component selection.
VOUT (V)
R1 (kΩ)
R2 (kΩ)
C1 (pF)
L1 (μH)
1.0
68
100
82
2.2
1.2
100
100
56
2.2
1.8
200
100
30
2.2
2.5
320
100
18
2.2
3.3
453
100
13
2.2
Table 1. Component Guide
Pin Descriptions
Pin Number
Pin Name
1
EN
2
GND
3
LX
Connect to inductor
4
VIN
Power supply input
5
FB
Feedback voltage from the output
AUR9703
Document number: DS41588 Rev. 2 - 3
Function
Enable signal input, active high
This pin is the GND reference for the NMOS power stage. It must be
connected to the system ground
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Functional Block Diagram
EN
VIN
4
1
Saw-tooth
Generator
Bias
Generator
Oscillator
Over Current
Comparator
Current
Sensing
+
Soft
Start
5
+
-
FB
Control
Logic
-
+
Error
Amplifier
+
3
LX
Modulator
-
Bandgap
Reference
Buffer &
Dead Time
Control
Logic
Over Voltage
Comparator
Reverse Inductor
Current Comparator
+
2
GND
Absolute Maximum Ratings (Note 2)
Symbol
Note 2:
Parameter
Rating
Unit
VIN
Supply Input Voltage
0 to 6.0
V
VEN
Enable Input Voltage
-0.3 to VIN+0.3
V
VOUT
Output Voltage
-0.3 to VIN+0.3
V
0.85
W
PD
Power Dissipation (On PCB, TA = +25°C)
θJA
Thermal Resistance (Junction to Ambient, Simulation)
118.31
°C/W
θJC
Thermal Resistance (Junction to Case, Simulation)
113.67
°C/W
TJ
Operating Junction Temperature
+160
°C
TOP
Operating Temperature
-40 to +85
°C
TSTG
Storage Temperature
-55 to +150
°C
VHBM
ESD (Human Body Model)
2000
V
VMM
ESD (Machine Model)
200
V
Stresses greater than those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “Recommended Operating Conditions” is not implied.
Exposure to “Absolute Maximum Ratings” for extended periods may affect device reliability.
AUR9703
Document number: DS41588 Rev. 2 - 3
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AUR9703
Recommended Operating Conditions
Symbol
Parameter
Min
Max
Unit
VIN
Supply Input Voltage
2.5
5.5
V
TJ
Junction Temperature Range
-20
+125
ºC
TA
Ambient Temperature Range
-40
+80
ºC
Electrical Characteristics
(@VIN = 5V, VOUT = 3.3V, VFB = 0.6V, L = 2.2µH, CIN = 4.7µF, COUT = 10µF, TA = +25°C, IMAX =
800mA, unless otherwise specified.)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
2.5
–
5.5
V
–
0.1
1
µA
0.585
0.6
0.615
V
VIN
Input Voltage Range
–
IOFF
Shutdown Current
VEN = 0
VFB
Regulated1Feedback Voltage
For Adjustable Output Voltage
Regulated Output Voltage Accuracy
VIN = 2.5V to 5.5V,
IOUT = 0 to 800mA
-3
–
3
%
IPK
Peak Inductor Current
VIN = 5V, VFB = 0.5V
–
1.2
–
A
fOSC
Oscillator Frequency
VIN = 5V
1.2
1.5
1.8
MHz
RON(P)
PMOSFET RON
VIN = 5V, IOUT = 200mA
–
0.25
–
Ω
RON(N)
NMOSFET RON
VIN = 5V, IOUT = 200mA
–
0.27
–
Ω
IQ
Quiescent Current
IOUT = 0A, VFB = 0.7V
–
100
–
μA
ILX
LX Leakage Current
–
0.1
1
μA
IFB
Feedback Current
–
–
–
30
nA
tSS
Soft Start Time
–
–
200
–
μs
IEN
EN Leakage Current
–
–
0.01
0.1
μA
VEN_H
EN High-level Input Voltage
VIN = 2.5V to 5.5V
1.5
–
–
V
VEN_L
EN Low-Level Input Voltage
VIN = 2.5V to 5.5V
–
–
0.6
V
VUVLO
Under Voltage Lock Out
–
–
1.8
–
V
Hysteresis
–
–
0.1
–
V
Thermal Shutdown
–
–
+160
–
°C
∆VOUT/VOUT
–
TSD
AUR9703
Document number: DS41588 Rev. 2 - 3
VEN = 0V, VLX = 0V or 5V, VIN =
5V
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AUR9703
Performance Characteristics
Efficiency vs. Output Current (VOUT=1.2V)
100
90
90
80
80
70
70
Efficiency (%)
Efficiency (%)
Efficiency vs. Output Current (VOUT=1.0V)
100
60
50
VIN=2.5V
40
VIN=3.3V
30
VIN=4.2V
VIN=5.0V
20
50
VIN=2.5V
40
VIN=3.3V
30
VIN=4.2V
VIN=5.0V
20
VIN=5.5V
10
60
VIN=5.5V
10
VOUT=1.0V
0
VOUT=1.2V
0
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.0
0.8
0.1
0.2
Output Current (A)
Efficiency vs. Output Current (VOUT=1.8V)
0.5
0.6
90
80
80
70
70
Efficiency (%)
90
60
50
VIN = 2.5V
40
VIN = 3.3V
VIN = 4.2V
30
VIN = 5.0V
20
0.8
60
50
40
VIN = 3.3V
30
VIN = 4.2V
VIN = 5.0V
20
VIN = 5.5V
VOUT=1.8V
VIN = 5.5V
VOUT=2.5V
10
0
0
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
Output Current (A)
Output Current (A)
Efficiency vs. Output Current (VOUT=3.3V)
Load Regulation (VOUT=1.0±0.03V)
100
1.03
90
VIN=2.5V
1.02
80
VIN=3.3V
VIN=4.2V
Output Voltage (V)
70
Efficiency (%)
0.7
Efficiency vs. Output Current (VOUT=2.5V)
100
Efficiency (%)
0.4
Output Current (A)
100
10
0.3
60
50
40
VIN = 4.2V
30
VIN = 5.0V
20
VIN = 5.5V
VIN=5.0V
1.01
VIN=5.5V
1.00
0.99
0.98
VOUT=3.3V
10
0
0.97
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
Output Current (A)
AUR9703
Document number: DS41588 Rev. 2 - 3
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
Output Current (A)
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AUR9703
Performance Characteristics (continued)
Load Regulation (VOUT=1.2±0.03V)
Load Regulation (VOUT=1.8±0.03V)
1.24
1.85
VIN=2.5V
1.23
Output Voltage (V)
VIN=5.0V
VIN=5.5V
1.21
VIN=2.5V
VIN=3.3V
1.83
VIN=4.2V
1.22
Output Voltage (V)
1.84
VIN=3.3V
1.20
1.19
1.18
1.17
VIN=4.2V
1.82
VIN=5.0V
VIN=5.5V
1.81
1.80
1.79
1.78
1.77
1.76
1.16
1.75
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.0
0.1
0.2
Output Current (A)
0.4
0.5
0.6
0.7
0.8
Output Current (A)
Load Regulation (VOUT=2.5±0.03V)
Load Regulation (VOUT=3.3±0.03V)
3.40
2.56
VIN=3.3V
3.38
VIN=4.2V
VIN=4.2V
2.54
3.36
VIN=5.0V
VIN=5.5V
Output Voltage (V)
Output Voltage (V)
0.3
2.52
2.50
2.48
2.46
VIN=5.0V
VIN=5.5V
3.34
3.32
3.30
3.28
3.26
3.24
3.22
3.20
2.44
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.0
0.8
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
Output Current (A)
Output Current (A)
Line Regulation (VOUT=1.0±0.03V)
Line Regulation (VOUT=1.2±0.03V)
1.03
1.24
1.23
1.02
Output Voltage (V)
Output Voltage (V)
1.22
1.01
1.00
0.99
IOUT=0A
0.98
IOUT=800mA
1.21
1.20
1.19
1.18
IOUT=0A
IOUT=800mA
1.17
1.16
0.97
2.5
3.0
3.5
4.0
4.5
5.0
5.5
2.5
AUR9703
Document number: DS41588 Rev. 2 - 3
3.0
3.5
4.0
4.5
5.0
5.5
Input Voltage (V)
Input Voltage (V)
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AUR9703
Performance Characteristics (continued)
Line Regulation (VOUT=1.8±0.03V)
Line Regulation (VOUT=2.5±0.03V)
1.85
2.56
1.84
IOUT = 0A
Output Voltage (V)
1.82
Output Voltage (V)
IOUT = 0A
2.54
IOUT = 800mA
1.83
1.81
1.80
1.79
1.78
1.77
IOUT = 800mA
2.52
2.50
2.48
2.46
1.76
1.75
2.5
2.44
3.0
3.5
4.0
4.5
5.0
5.5
2.5
3.0
3.5
4.0
4.5
5.0
5.5
Input Voltage (V)
Input Voltage (V)
Line Regulation (VOUT=3.3±0.03V)
EN Threshold Voltage vs. Input Voltage
3.40
1.2
3.38
Output Voltage (V)
EN Threshold Voltage (V)
IOUT = 0A
3.36
IOUT = 800mA
3.34
3.32
3.30
3.28
3.26
3.24
3.22
1.1
1.0
0.9
High Level
0.8
Low Level
0.7
VOUT=1.2V
IOUT=200mA
3.20
0.6
3.5
4.0
4.5
5.0
5.5
2.5
3.0
3.5
Input Voltage (V)
Frequency vs. Input Voltage
4.5
5.0
5.5
Temperature vs. Output Current
1.8
50
1.7
VIN=5.0V
45
Temperature ( C)
1.6
o
Frequency (MHz)
4.0
Input Voltage (V)
1.5
1.4
VOUT=1.2V
1.3
VOUT=1.0V
VOUT=3.3V
40
35
30
IOUT=400mA
1.2
25
2.5
3.0
3.5
4.0
4.5
5.0
5.5
Input Voltage (V)
AUR9703
Document number: DS41588 Rev. 2 - 3
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
Output Current (A)
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AUR9703
Performance Characteristics (continued)
Current Limit vs. Input Voltage
Start Up through EN
(VIN=5V, VEN= 0 to 5V, VOUT=3.3V, IOUT=800mA)
3.0
2.8
Current Limit (A)
2.6
2.4
2.2
2.0
1.8
1.6
1.4
VOUT=1.2V
1.2
1.0
3.0
3.5
4.0
4.5
5.0
5.5
Input Voltage (V)
Shut Down through EN
(VIN=5V, VEN=5V to 0V, VOUT=3.3V, IOUT=800mA)
Shut Down through VIN
(VIN=5.0 to 0V, VOUT=3.3V, IOUT=800mA)
AUR9703
Document number: DS41588 Rev. 2 - 3
Start Up through VIN
(VIN=0 to 5V, VOUT=3.3V, IOUT=800mA)
Short Circuit Protection
(VIN=5.0V, VOUT =3.3V, IOUT=800mA)
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Performance Characteristics (continued)
Short Circuit Recovery
(VIN=5.0V, VOUT=3.3V, IOUT=800mA)
Load Transition
(VIN=5.0V, VOUT=1.0V, IOUT=50mA to 400mA)
Load Transition
(VIN=5.0V, VOUT=3.3V, IOUT=50mA to 400mA)
Load Transition
(VIN=5.0V, VOUT=1.0V, IOUT=50mA to 800mA)
Load Transition
(VIN=5.0V, VOUT=3.3V, IOUT=50mA to 800mA)
Output Ripple Voltage
(VIN=5.0V, VOUT=1.0V, IOUT=10mA)
AUR9703
Document number: DS41588 Rev. 2 - 3
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AUR9703
Performance Characteristics (continued)
Output Ripple Voltage
(VIN=5V, VOUT=3.3V, IOUT=10mA)
Output Ripple Voltage
(VIN=5V, VOUT=1.0V, IOUT=400mA)
Output Ripple Voltage
(VIN=5V, VOUT=3.3V, IOUT=400mA)
Output Ripple Voltage
(VIN=5V, VOUT=1.0V, IOUT=800mA)
Output Ripple Voltage
(VIN=5V, VOUT=3.3V, IOUT=800mA)
AUR9703
Document number: DS41588 Rev. 2 - 3
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AUR9703
Application Information
The basic AUR9703 application circuit is shown in Typical Application Circuit section, external components selection is determined by the load current and
is critical with the selection of inductor and capacitor values.
1. Inductor Selection
For most applications, the value of inductor is chosen based on the required ripple current with the range of 2.2µH to 4.7µH.
I L
V
1
VOUT (1 OUT )
f L
VIN
The largest ripple current occurs at the highest input voltage. Having a small ripple current reduces the ESR loss in the output capacitor and improves the
efficiency. The highest efficiency is realized at low operating frequency with small ripple current. However, larger value inductors will be required. A
reasonable starting point for ripple current setting is ∆IL=40%IMAX
be chosen according to the following equation:
L [
VOUT
VOUT
][1
]
f I L ( MAX )
VIN ( MAX )
The DC current rating of the inductor should be at least equal to the maximum output current plus half the highest ripple current to prevent inductor
core saturation. For better efficiency, a lower DC-resistance inductor should be selected.
2. Capacitor Selection
The input capacitance, CIN, is needed to filter the trapezoidal current at the source of the top MOSFET. To prevent large ripple voltage, a low ESR
input capacitor sized for the maximum RMS current must be used. The maximum RMS capacitor current is given by:
1
I RMS I OMAX
[V (V VOUT )] 2
OUT IN
VIN
It indicates a maximum value at VIN = 2VOUT, where IRMS = IOUT/2. This simple worse-case condition is commonly used for design because even
significant deviations do not much relieve. The selection of COUT is determined by the Effective Series Resistance (ESR) that is required to
minimize output voltage ripple and load step transients, as well as the amount of bulk capacitor that is necessary to ensure that the control loop is
stable. Loop stability can be also checked by viewing the load step transient response as described in the following section. The output ripple,
∆VOUT, is determined by:
VOUT I L [ ESR
1
]
8 f COUT
The output ripple is the highest at the maximum input voltage since ∆IL increases with input voltage.
3. Load Transient
A switching regulator typically takes several cycles to respond to the load current step. When a load step occurs, VOUT immediately shifts by an
amount equal to ∆ILOAD×ESR, where ESR is the effective series resistance of output capacitor. ∆ILOAD also begins to charge or discharge COUT
generating a feedback error signal used by the regulator to return VOUT to its steady-state value. During the recovery time, VOUT can be monitored
for overshoot or ringing that would indicate a stability problem.
4. Output Voltage Setting
The output voltage of AUR9703 can be adjusted by a resistive divider according to the following formula:
VOUT VREF (1
R1
R
) 0.6V (1 1 )
R2
R2
The resistive divider senses the fraction of the output voltage as shown in Figure of Setting the Output Voltage.
AUR9703
Document number: DS41588 Rev. 2 - 3
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Application Information (continued)
VOUT
R1
FB
AUR9703
R2
GND
Setting the Output Voltage
5. Efficiency Considerations
The efficiency of switching regulator is equal to the output power divided by the input power times 100%. It is usually useful to analyze the
individual losses to determine what is limiting efficiency and which change could produce the largest improvement. Efficiency can be expressed as:
Efficiency=100%-L1-L2-…..
Where L1, L2, etc. are the individual losses as a percentage of input power.
Although all dissipative elements in the regulator produce losses, two major sources usually account for most of the power losses: VIN quiescent
current and I2R losses. The VIN quiescent current loss dominates the efficiency loss at very light load currents and the I 2R loss dominates the
efficiency loss at medium to heavy load currents.
5.1 The VIN quiescent current loss comprises two parts: the DC bias current as given in the electrical characteristics and the internal MOSFET
switch gate charge currents. The gate charge current results from switching the gate capacitance of the internal power MOSFET switches. Each
cycle the gate is switched from high to low, then to high again, and the packet of charge, dQ moves from VIN to ground. The resulting dQ/dt is the
current out of VIN that is typically larger than the internal DC bias current. In continuous mode,
I GATE f (QP QN )
Where QP and QN are the gate charge of power PMOSFET and NMOSFET switches. Both the DC bias current and gate charge losses are
proportional to the VIN and this effect will be more serious at higher input voltages.
5.2
2
R losses are calculated from internal switch resistance, R SW and external inductor resistance RL. In continuous mode, the average output
current flowing through the inductor is chopped between power PMOSFET switch and NMOSFET switch. Then, the series resistance looking into
the LX pin is a function of both PMOSFET RDS(ON) and NMOSFET RDS(ON) resistance and the duty cycle (D):
RSW RDS ON P D RDS ON N 1 D
Therefore, to obtain the I2
SW
to RL and multiply the result by the square of the average output current.
Other losses including CIN and COUT ESR dissipative losses and inductor core losses generally account for less than 2% of total additional loss.
6. Thermal Characteristics
In most applications, the part does not dissipate much heat due to its high efficiency. However, in some conditions when the part is operating in
high ambient temperature with high RDS(ON) resistance and high duty cycles, such as in LDO mode, the heat dissipated may exceed the maximum
junction temperature. To avoid the part from exceeding maximum junction temperature, the user should do some thermal analysis. The maximum
power dissipation depends on the layout of PCB, the thermal resistance of IC package, the rate of surrounding airflow and the temperature
difference between junction and ambient.
AUR9703
Document number: DS41588 Rev. 2 - 3
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AUR9703
Application Information (continued)
7. PCB Layout Considerations
When laying out the printed circuit board, the following checklist should be used to optimize the performance of AUR9703.
1) The power traces, including the GND trace, the LX trace and the VIN trace should be kept direct, short and wide.
2) Place the input capacitor as close as possible to the VIN and GND pins.
3) The FB pin should be connected directly to the feedback resistor divider.
4) Keep the switching node, LX, away from the sensitive FB pin and the node should be kept small area.
VIN
GND
L
LX
AUR9703
VIN
VOUT
CIN
COUT
GND
FB
EN
GND
R2
R1
VOUT
C1
Layout Example of AUR9703
Ordering Information
AUR9703 X X X
Product Name
RoHS/Green
Output Voltage
A : Adjustable Output
Package
Temperature Range
TSOT-23-5
-40 to +80°C
AUR9703
Document number: DS41588 Rev. 2 - 3
G:RoHS Compliant
and Green
Part Number
AUR9703AGH
13 of 16
www.diodes.com
Marking ID
9703AG
Package
H : TSOT-23-5
Packing
Tape & Reel
June 2019
© Diodes Incorporated
NOT RECOMMENDED FOR NEW DESIGN
USE AP3428
AUR9703
Package Outline Dimensions (All dimensions in mm(inch).)
Please see http://www.diodes.com/package-outlines.html for the latest version.
(1)
Package Type: TSOT-23-5
2.800(0.110)
3.000(0.118)
5
0°
8°
R0.100(0.004)
MIN
4
0.600(0.024)
REF
2.600(0.102)
3.000(0.118)
1.500(0.059)
1.700(0.067)
0.300(0.012)
0.500(0.020)
2
1
3
0.950(0.037)
TYP
0.100(0.004)
0.250(0.010)
0.300(0.012)
0.510(0.020)
GAUGE PLANE
0.250(0.010)
TYP
1.900(0.075)
TYP
5°
A1
A
4X7
°
A2
A
Symbol
A1
A2
min(mm) max(mm) min(inch) max(inch) min(mm) max(mm) min(inch) max(inch) min(mm) max(mm) min(inch) max(inch)
Option1 0.700 0.900 0.028 0.035 0.700 0.800 0.028 0.031
Option2
-
AUR9703
Document number: DS41588 Rev. 2 - 3
1.000
-
.
0.039 0.840 0.900 0.033 0.035
14 of 16
www.diodes.com
0.000 0.100
0.000 0.004
0.010 0.100
0.000 0.004
June 2019
© Diodes Incorporated
NOT RECOMMENDED FOR NEW DESIGN
USE AP3428
AUR9703
Suggested Pad Layout
Please see http://www.diodes.com/package-outlines.html for the latest version.
(1)
Package Type: TSOT-23-5
E
E
Z
Y
X
Dimensions
Value
E
(mm)/(inch)
0.950/0.037
AUR9703
Document number: DS41588 Rev. 2 - 3
X
(mm)/(inch)
0.700/0.028
Y
(mm)/(inch)
1.000/0.039
15 of 16
www.diodes.com
Z
(mm)/(inch)
3.199/0.126
June 2019
© Diodes Incorporated
NOT RECOMMENDED FOR NEW DESIGN
USE AP3428
AUR9703
IMPORTANT NOTICE
DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
(AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION).
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes
without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the
application or use of this document or any product described herein; neither does Diodes Incorporated convey any license under its patent or
trademark rights, nor the rights of others. Any Customer or user of this document or products described herein in such applications shall assume
all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diodes Incorporated
website, harmless against all damages.
Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel.
Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and
hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or
indirectly, any claim of personal injury or death associated with such unintended or unauthorized application.
Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings
noted herein may also be covered by one or more United States, international or foreign trademarks.
This document is written in English but may be translated into multiple languages for reference. Only the English version of this document is the
final and determinative format released by Diodes Incorporated.
LIFE SUPPORT
Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express
written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:
A. Life support devices or systems are devices or systems which:
1. are intended to implant into the body, or
2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the
labeling can be reasonably expected to result in significant injury to the user.
B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the
failure of the life support device or to affect its safety or effectiveness.
Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and
acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any
use of Diodes Incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related
information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and its
representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems.
Copyright © 2019, Diodes Incorporated
www.diodes.com
AUR9703
Document number: DS41588 Rev. 2 - 3
16 of 16
www.diodes.com
June 2019
© Diodes Incorporated
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