MPM3805GQB-18 [MPS]
6V Input, 0.6A Module Synchronous Step-Down Converter with Integrated Inductor;
| 型号： | MPM3805GQB-18 |
| 厂家： | 
MONOLITHIC POWER SYSTEMS |
| 描述： | 6V Input, 0.6A Module Synchronous Step-Down Converter with Integrated Inductor |
| 文件： | 总16页 (文件大小：890K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MPM3805
6V Input, 0.6A Module
Synchronous Step-Down Converter
with Integrated Inductor
The Future of Analog IC Technology
DESCRIPTION
FEATURES
The MPM3805 is a step-down module converter
with built-in power MOSFETs and inductor. The
module’s integrated inductor simplifies the power
system design and provides easy, efficient use.
The DC-DC module comes in a small surface-
mount QFN-12 (2.5mmx3.0mmx0.9mm) package
and achieves 0.6A continuous output current
from a 2.5V to 6V input voltage with excellent
load and line regulation. The output voltage is
regulated as low as 0.6V. For adjustable output,
only FB resistors and input and output capacitors
are needed to complete the design.
•
•
•
•
•
•
•
•
•
•
•
Wide 2.5V to 6V Operating Input Range
Fixed and Adjustable Output from 0.6V
QFN-12 (2.5mmx3.0mmx0.9mm) Package
Total Solution Size 6mm x 3.8mm
Up to 0.6A Output Current
100% Duty Cycle in Dropout
Ultra Low IQ: 17μA
EN and Power Good for Power Sequencing
Cycle-by-Cycle Over-Current Protection
Short-Circuit Protection with Hiccup Mode
Adjustable Output Only Needs 4 External
Components: 2 Ceramic Capacitors and FB
Divider Resistors
The Constant-on-time control (COT) scheme
provides fast transient response and eases loop
stabilization. Fault condition protection includes
cycle-by-cycle current limiting and thermal
shutdown (TSD).
•
Fixed Output only Needs Input and Output
Capacitors
APPLICATIONS
•
•
•
•
•
Low Voltage I/O System Power
LDO Replacement
Power for Portable Products
Storage (SSD/HDD)
The MPM3805 is ideal for a wide range of
applications including high performance DSPs,
FPGAs, PDAs, portable instruments and storage.
Space-Limited Applications
All MPS parts are lead-free and adhere to the RoHS directive. For MPS green
status, please visit MPS website under Products, Quality Assurance page.
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of
Monolithic Power Systems, Inc.
TYPICAL APPLICATION (Fixed Output)
MPM3805 Rev.1.11
3/23/2015
www.MonolithicPower.com
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© 2015 MPS. All Rights Reserved.
1
MPM3805 –6V, 0.6A SIMPLE MODULE WITH INTEGRATED INDUCTOR
ORDERING INFORMATION
Part Number
Package
Top Marking
Vo Range
QFN-12
(2.5mmX3.0mmX0.9mm)
QFN-12
MPM3805GQB*
AGR
Adjustable
MPM3805GQB-12
MPM3805GQB-18
MPM3805GQB-25
MPM3805GQB-33
AHE
AHD
AJK
AJJ
Fixed 1.2V
Fixed 1.8V
Fixed 2.5V
Fixed 3.3V
(2.5mmX3.0mmX0.9mm)
QFN-12
(2.5mmX3.0mmX0.9mm)
QFN-12
(2.5mmX3.0mmX0.9mm)
QFN-12
(2.5mmX3.0mmX0.9mm)
* For Tape & Reel, add suffix –Z (e.g. MPM3805GQB–Z);
PACKAGE REFERENCE
MPM3805GQB-12
MPM3805GQB-18
MPM3805GQB-33
MPM3805GQB
MPM3805GQB-25
QFN-12 (2.5mmX3.0mmX0.9mm)
ABSOLUTE MAXIMUM RATINGS (1)
Supply Voltage VIN ......................................6.5V
Thermal Resistance (4)
QFN-12 (2.5mmX3.0mm)……65
θJA θJC
13 °C/W
V
SW ....................................................................
Notes:
-0.3V (-5V for <10ns) to 6.5V (7V for <10ns)
1) Exceeding these ratings may damage the device.
2) The maximum allowable power dissipation is a function of the
maximum junction temperature TJ (MAX), the junction-to-
ambient thermal resistance θJA, and the ambient temperature
TA. The maximum allowable continuous power dissipation at
any ambient temperature is calculated by PD (MAX) = (TJ
(MAX)-TA)/θJA. Exceeding the maximum allowable power
dissipation will cause excessive die temperature, and the
regulator will go into thermal shutdown. Internal thermal
shutdown circuitry protects the device from permanent
damage.
All Other Pins............................... -0.3V to 6.5 V
Junction Temperature..............................150°C
Lead Temperature ...................................260°C
Continuous Power Dissipation (TA = +25°C)
……….….. .................................................1.9W
(2)
Storage Temperature...............-65°C to +150°C
Recommended Operating Conditions (3)
Supply Voltage VIN ............................ 2.5V to 6V
Output Voltage VOUT..................12% x VIN to VIN
Operating Junction Temp. (TJ). -40°C to +125°C
3) The device is not guaranteed to function outside of its
operating conditions.
4) Measured on JESD51-7, 4-layer PCB.
MPM3805 Rev.1.11
3/23/2015
www.MonolithicPower.com
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© 2015 MPS. All Rights Reserved.
2
MPM3805 –6V, 0.6A SIMPLE MODULE WITH INTEGRATED INDUCTOR
ELECTRICAL CHARACTERISTICS
VIN = 5V, TJ = -40°C to +125°C, Typical value is tested at TJ = +25°C. The limit over temperature is
guaranteed by characterization, unless otherwise noted.
Parameter
Symbol Condition
Min
Typ
Max
Units
Feedback Voltage
(MPM3805GQB Only)
VFB
2.5V ≤ VIN ≤ 6V, TJ=+25oC
588
600
612
mV
Only for MPM3805GQB-
12, IOUT=10mA, TJ=+25oC
1.17
1.755
2.437
3.217
1.2
1.8
2.5
3.3
10
1.23
1.845
2.563
3.383
Only for MPM3805GQB-
18, IOUT=10mA, TJ=+25oC
Fixed Output Voltage
Feedback Current
V
Only for MPM3805GQB-
25, IOUT=10mA, TJ=+25oC
Only for MPM3805GQB-
33, IOUT=10mA, TJ=+25oC
VFB
=
0.63V, Only for
IFB
nA
MPM3805GQB
PFET Switch-On Resistance
NFET Switch-On Resistance
Inductor L Value
RDSON P
RDSON N
L
110
70
mΩ
mΩ
μH
Inductance value at 1MHz
100% on duty
0.47
125
235
Inductor DC Resistance
Dropout Resistance
RDCR
RDR
mΩ
mΩ
VEN = 0V, VIN = 6V
VSW = 0V and 6V,
TJ=+25oC
Switch Leakage
0
1
μA
PFET Current Limit
On Time
1.0
A
VIN=5V, VOUT=1.2V
VIN=3.6V, VOUT=1.2V
70
TON
Fs
ns
100
Switching Frequency
VOUT=1.2V
2800
3500
4200
kHz
Minimum Off Time
Soft-Start Time
TMIN-OFF
TSS-ON
60
ns
1.5
ms
Power Good Upper Trip
Threshold
FB Voltage in Respect to
the Regulation
PGH
+10
%
Power Good Lower Trip
Threshold
PGL
PGD
VPG-L
-10
50
%
μs
V
Power Good Delay
Power Good Sink Current
Capability
Sink 1mA
0.4
Power Good Logic High
Voltage
VPG-H
RPG
VIN=5V, VFB=0.6V
4.9
V
kΩ
V
Power Good Internal Pull Up
Resistor
550
2.3
Under Voltage Lockout
Threshold Rising
2.15
2.48
Under Voltage Lockout
Threshold Hysteresis
300
mV
MPM3805 Rev.1.11
3/23/2015
www.MonolithicPower.com
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© 2015 MPS. All Rights Reserved.
3
MPM3805 –6V, 0.6A SIMPLE MODULE WITH INTEGRATED INDUCTOR
ELECTRICAL CHARACTERISTICS (continued)
VIN = 5V, TJ = -40°C to +125°C, Typical value is tested at TJ = +25°C. The limit over temperature is
guaranteed by characterization, unless otherwise noted.
Parameter
Symbol Condition
Min
Typ
Max
Units
V
EN Input Logic Low Voltage
EN Input Logic High Voltage
0.4
1.2
V
VEN=2V
VEN=0V
1.5
0.1
μA
μA
μA
EN Input Current
1
1
Supply Current (Shutdown)
Supply Current (Quiescent)
VEN=0V, TJ=+25oC
VEN=2V,VFB=0.63V,VIN=5V,
TJ=+25oC
17
21
μA
Thermal Shutdown(5)
Thermal Hysteresis(5)
150
30
°C
°C
Notes:
5) Not production test, guaranteed by design.
MPM3805 Rev.1.11
3/23/2015
www.MonolithicPower.com
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© 2015 MPS. All Rights Reserved.
4
MPM3805 –6V, 0.6A SIMPLE MODULE WITH INTEGRATED INDUCTOR
TYPICAL CHARACTERISTICS
VIN = 5V, VOUT = 1.2V, CIN=10µF, COUT=20µF, TA = +25ºC, unless otherwise noted.
MPM3805 Rev.1.11
3/23/2015
www.MonolithicPower.com
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© 2015 MPS. All Rights Reserved.
5
MPM3805 –6V, 0.6A SIMPLE MODULE WITH INTEGRATED INDUCTOR
TYPICAL CHARACTERISTICS (continued)
VIN = 5V, VOUT = 1.2V, CIN=10µF, COUT=20µF, TA = +25ºC, unless otherwise noted.
MPM3805 Rev.1.11
3/23/2015
www.MonolithicPower.com
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© 2015 MPS. All Rights Reserved.
6
MPM3805 –6V, 0.6A SIMPLE MODULE WITH INTEGRATED INDUCTOR
TYPICAL PERFORMANCE CHARACTERISTICS
VIN = 5V, VOUT = 1.2V, CIN=10µF, COUT=20µF, TA = +25ºC, unless otherwise noted.
MPM3805 Rev.1.11
3/23/2015
www.MonolithicPower.com
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© 2015 MPS. All Rights Reserved.
7
MPM3805 –6V, 0.6A SIMPLE MODULE WITH INTEGRATED INDUCTOR
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
VIN = 5V, VOUT = 1.2V, CIN=10µF, COUT=20µF, TA = +25ºC, unless otherwise noted.
MPM3805 Rev.1.11
3/23/2015
www.MonolithicPower.com
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© 2015 MPS. All Rights Reserved.
8
MPM3805 –6V, 0.6A SIMPLE MODULE WITH INTEGRATED INDUCTOR
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
VIN = 5V, VOUT = 1.2V, CIN=10µF, COUT=20µF, TA = +25ºC, unless otherwise noted.
MPM3805 Rev.1.11
3/23/2015
www.MonolithicPower.com
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© 2015 MPS. All Rights Reserved.
9
MPM3805 –6V, 0.6A SIMPLE MODULE WITH INTEGRATED INDUCTOR
PIN FUNCTIONS
Pin #
Name
PGND
NC
Description
1, 2
Power Ground.
3, 4
Internal SW Pad. Connected with copper pad for thermal sink.
Output Voltage Power Rail. Connect load to OUT. Output capacitor is needed.
5, 6
OUT
Supply Voltage. The MPM3805 operates from a +2.5V to +6V unregulated input. A
decouple capacitor is needed to prevent large voltage spikes from appearing at the
input. Place the decoupling capacitor as close to VIN as possible.
7
VIN
Power Good Indicator. The output of PG is an open drain with an internal pull up
resistor to VIN. PG is pulled up to VIN when the FB voltage is within 10% of the
regulation level. If FB voltage is out of that regulation range, PG is low.
8
9
PG
EN
On/Off Control.
FB
(MPM3805GQB
only)
Feedback. An external resistor divider from the output to GND (tapped to the FB),
sets the output voltage.
10
NC
(Fixed Output Internal Test Pad. Do Not Connect.
Version only)
11
12
AGND
Analogy Ground for Internal Control Circuit.
Output Voltage Sense.
OUT_S
MPM3805 Rev.1.11
3/23/2015
www.MonolithicPower.com
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© 2015 MPS. All Rights Reserved.
10
MPM3805 –6V, 0.6A SIMPLE MODULE WITH INTEGRATED INDUCTOR
OPERATION
The DC-DC module has a small surface-mount
QFN-12 (2.5mmx3.0mmx0.9mm) package. The
module’s integrated inductor simplifies the
schematic and layout design. Only FB resistors
and input and output capacitors are needed to
complete the design. MPM3805 uses constant
on-time control (COT) with input voltage feed
forward to stabilize the switching frequency over
a full-input range. At light load, MPM3805
employs a proprietary control of the low-side
switch and inductor current to improve efficiency.
continuous conduction mode (CCM) should be
longer than 60ns. For example, if Vin is 3.6V and
Vo is 3.3V, the off-time in CCM is 24ns. It is
difficult to enter DCM at light load.
Enable (EN)
If the input voltage is greater than the under-
voltage lockout threshold (UVLO), typically 2.3V,
MPM3805 is enabled by pulling EN above 1.2V.
Leaving EN to float or be pulled down to ground
disables MPM3805. There is an internal 1MΩ
resistor from EN to ground.
Constant On-Time Control (COT)
Soft-Start (SS)
Compared to a fixed-frequency PWM control,
constant on-time control (COT) offers the
advantage of a simpler control loop and faster
transient response. Using input voltage feed
forward, the MPM3805 maintains a nearly constant
switching frequency across the input and output
voltage range. The on-time of the switching pulse
is estimated as follows:
MPM3805 has a built-in soft-start that ramps up
the output voltage in a controlled slew rate. This
avoids overshoot at startup. The soft-start time is
about 1.5ms typically.
Power GOOD Indictor (PGOOD)
MPM3805 has an open drain with a 550kꢀ pull-
up resistor pin for the power good indicator
(PGOOD). When FB is within +/-10% of
regulation voltage (i.e. 0.6V), PGOOD is pulled
up to IN by the internal resistor. If FB pin voltage
is out of the +/-10% window, PGOOD is pulled
down to ground by an internal MOS FET. The
MOS FET has a maximum Rdson of less than
400ꢀ.
VOUT
TON
=
⋅0.28μs
V
IN
To prevent inductor current run away during load
transition, MPM3805 fixes the minimum off time to
60ns. However, this minimum-off time limit does
not affect operation in a steady state.
Light Load Operation
Current Limit
In a light-load condition, MPM3805 uses a
proprietary control scheme to save power and
improve efficiency. The MPM3805 turns off the
low-side switch when the inductor current begins
to reverse. Then MPM3805 works in
discontinuous conduction mode (DCM) operation.
MPM3805 has a minimum 1A current limit for the
high-side switch. When the high-side switch
reaches the current limit, MPM3805 hits the
hiccup threshold until the current decreases. This
prevents the inductor current from continuing to
build, which results in damage to the components.
A zero current cross circuit detects if the inductor
current begins to reverse. Considering the
internal circuit propagation time, the typical delay
time is 30ns. This means the inductor current
continues to fall after the ZCD is triggered. If the
inductor current falling slew rate is fast (Vo
voltage is high or close to Vin), the low-side
MOSFET turns off (this means the inductor
current may be negative). This does not allow the
MPM3805 to enter DCM operation. If DCM is
required, the off-time of the low-side MOSFET in
Short Circuit and Recovery
MPM3805 enters short-circuit protection (SCP)
mode when the current limit is reached, then it
tries to recover from the short circuit with hiccup
mode. In SCP, MPM3805 disables the output
power stage, discharges the soft-start cap and
then automatically tries to soft-start again. If the
short circuit remains after the soft-start ends,
MPM3805 repeats the cycle until the short circuit
disappears, and the output rises back to the
regulation level.
MPM3805 Rev.1.11
3/23/2015
www.MonolithicPower.com
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© 2015 MPS. All Rights Reserved.
11
MPM3805 –6V, 0.6A SIMPLE MODULE WITH INTEGRATED INDUCTOR
FUNCTIONAL BLOCK DIAGRAM
VIN
Bias
&
Voltage
Soft start
EN
+
COMP
VTH
Reference
SW
-
Lo-Iq
Main
Switch
0. 6V
( PCH)
RST
Constant
PDRV
+
+
-
PWM
E.A.
PWM
On- Time
Pulse
Integrated Inductor
0.47uH
Lo-Iq
+
+
-
EN
OUT
FBCOMP
Lo-Iq
Driver
FB
VOUT
Synchronous
Rectifier
( NCH)
Ramp
generator
SW
NDRV
Lo-Iq
Hi-Z
OUT_S
PGND
AGND
IN
0. 66V
FB for
fixed output
+
+
COMP
COMP
-
-
Lo-Iq
+
COMP
PG
0. 54V
-
Figure 1: Functional Block Diagram
MPM3805 Rev.1.11
3/23/2015
www.MonolithicPower.com
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12
MPM3805 –6V, 0.6A SIMPLE MODULE WITH INTEGRATED INDUCTOR
APPLICATION INFORMATION
For higher output voltage, a 22µF may be
needed to enhance system stability.
COMPONENT SELECTION
Setting the Output Voltage
Since the input capacitor absorbs the input
switching current it requires an adequate ripple
current rating. The RMS current in the input
capacitor can be estimated by:
The external resistor divider is used to set the
output voltage (see Typical Application on page
16). The feedback resistor R1 cannot be too
large or too small considering the trade-off for
stability and dynamics. Choose R1 between
40kꢀ to 80kꢀ. R2 is given by:
⎛
⎞
⎟
VOUT
VIN
VOUT
VIN
IC1 = ILOAD
×
×
⎜⎜1−
⎟
⎟
⎠
⎜
⎝
R1
R2 =
Vout
The worst case condition occurs at VIN = 2VOUT
,
−1
where:
0.6
The feedback circuit is shown in Figure 2.
ILOAD
IC1 =
2
For simplification, choose the input capacitor that
has a RMS current rating greater than half of the
maximum load current.
OUT
MPM3805
R1
FB
The input capacitor can be electrolytic, tantalum
or ceramic. When using electrolytic or tantalum
R2
capacitors,
a
small, high quality ceramic
capacitor (i.e. 0.1μF), should be placed as close
to the IC as possible. When using ceramic
capacitors, check that they have enough
capacitance to provide sufficient charge to
prevent an excessive voltage ripple at input. The
input-voltage ripple caused by capacitance is
estimated by:
Figure 2: Feedback Network
Table 1 lists the recommended resistor values for
common output voltages.
Table 1: Resistor Values for Common Output
Voltages
⎛
⎞
⎟
⎠
ILOAD
VOUT
VOUT
ΔV =
×
× 1−
⎜
IN
fS ×C1
V
IN
V
IN
⎝
VOUT (V)
1.0
R1 (kΩ)
40(1%)
40(1%)
60(1%)
80(1%)
80(1%)
R2 (kΩ)
60(1%)
40(1%)
30(1%)
25(1%)
17.7(1%)
Selecting the Output Capacitor
1.2
The output capacitor (COUT) is required to
maintain the DC output voltage. Ceramic
capacitors are recommended. Low ESR
capacitors are preferred to keep the output-
voltage ripple low. The output voltage ripple is
estimated by:
1.8
2.5
3.3
Selecting the Input Capacitor
The input current to the step-down converter is
discontinuous, therefore a capacitor is required to
supply the AC current while maintaining the DC input
voltage. For optimal performance, use low ESR
capacitors. Ceramic capacitors with X5R or X7R
dielectrics are highly recommended due to their
low ESR and small temperature coefficients. For
most applications, a 10µF capacitor is sufficient.
⎛
⎞ ⎛
⎞
⎟
⎠
VOUT
VOUT
1
ΔVOUT
=
× 1−
⎜
× R
⎟ ⎜
+
ESR
fS ×L1
V
8× fS ×C2
⎝
IN ⎠ ⎝
Where L1 is the inductor value, and RESR is the
equivalent series resistance (ESR) value of the
output capacitor (L1 is 0.47µH).
When using ceramic capacitors, the impedance
at the switching frequency is dominated by the
MPM3805 Rev.1.11
3/23/2015
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© 2015 MPS. All Rights Reserved.
13
MPM3805 –6V, 0.6A SIMPLE MODULE WITH INTEGRATED INDUCTOR
capacitance. The output-voltage ripple is mainly
caused by the capacitance. For simplification,
the output-voltage ripple is estimated by:
GND
VIN
⎛
⎞
⎟
⎠
VOUT
VOUT
ΔVOUT
=
× 1−
⎜
2
8× fS ×L1 ×C2
V
IN
⎝
When using tantalum or electrolytic capacitors,
the ESR dominates the impedance at the
switching frequency. For simplification, the
output ripple can be approximated by:
PGND
PGND
PG
VIN
VOUT
VOUT
⎛
⎞
OUT
N/C
ΔVOUT
=
× 1−
×RESR
⎜
⎟
⎠
fS ×L1
V
IN
⎝
OUT
N/C
The characteristics of the output capacitor
affect the stability of the regulation system.
PCB Layout
GND
OUT
The module’s integrated inductor simplifies the
schematic and layout design (see Figures 3 and
4). Only FB resistors and input and output
capacitors are needed to complete the design.
The high-current paths (PGND, IN and OUT)
should be placed very close to the device with
short, direct, and wide traces. The input
capacitor needs to be as close to IN and PGND
as possible. The external feedback resistors
should be placed next to FB. Keep the
switching node away from the feedback
network. For additional device applications,
please refer to related evaluation board
datasheets (EVB).
Figure 3: Top View of Layout Guide
VIN
GND
EN
OUT
PG
FB
GND
VIN
GND
OUT
Figure 4: Bottom View of Layout Guide
MPM3805 Rev.1.11
3/23/2015
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14
MPM3805 –6V, 0.6A SIMPLE MODULE WITH INTEGRATED INDUCTOR
Typical Application Circuits (ADJUSTABLE OUTPUT)
Figure 5: Typical Application Circuit
MPM3805 Rev.1.11
3/23/2015
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15
MPM3805 –6V, 0.6A SIMPLE MODULE WITH INTEGRATED INDUCTOR
PACKAGE INFORMATION
QFN-12 (2.5mmX3.0mmX0.9mm)
NOTICE: The information in this document is subject to change without notice. Please contact MPS for current specifications.
Users should warrant and guarantee that third party Intellectual Property rights are not infringed upon when integrating MPS
products into any application. MPS will not assume any legal responsibility for any said applications.
MPM3805 Rev. 1.11
3/23/2015
www.MonolithicPower.com
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© 2015 MPS. All Rights Reserved.
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SMBus Multi-Output Power-Supply ControllerWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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SI9136_11
Multi-Output Power-Supply ControllerWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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VISHAY
SI9130CG-T1-E3
Pin-Programmable Dual Controller - Portable PCsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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SI9130LG-T1-E3
Pin-Programmable Dual Controller - Portable PCsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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VISHAY
SI9130_11
Pin-Programmable Dual Controller - Portable PCsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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SI9137
Multi-Output, Sequence Selectable Power-Supply Controller for Mobile ApplicationsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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VISHAY
SI9137DB
Multi-Output, Sequence Selectable Power-Supply Controller for Mobile ApplicationsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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VISHAY
SI9137LG
Multi-Output, Sequence Selectable Power-Supply Controller for Mobile ApplicationsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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VISHAY
SI9122E
500-kHz Half-Bridge DC/DC Controller with Integrated Secondary Synchronous Rectification DriversWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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VISHAY
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