Single-Output LDO Regulators
30V Voltage Resistance
0.1A LDO Regulators
BDxxFA1FP3 series
●General Description
BDxxFA1FP3 series are LDO regulators with output current capability of 0.1A. The output voltages are 3.3V, 5.0V, 5.4V,
and 12.0V with ±1% accuracy. The SOT89-3K package is most suitable for heat dissipation. As protective function to
prevent IC from destruction, this chip has built-in over current protection circuit to protect the device when output is shorted,
and built-in thermal shutdown circuit to protect the IC during thermal over load conditions. This product can be used in
wide variety of digital appliances. These regulators can use ceramic capacitor, which have smaller size and longer life than
other capacitors.
W(Typ) D(Typ)
H(Max)
4.50mm x 4.095mm x 1.60mm
●Package
SOT89-3K
●Features
High accuracy output voltage ±1.0%
Built-in Over current protection circuit (OCP)
Built-in Temperature protection circuit (TSD)
Soft start function
●Key Features
Input power supply voltage range: Vo+3.0V to 25.0V
Output voltage:
3.3V, 5.0V, 5.4V, 12.0V
Output current:
0.1A (Max)
Operating temperature range:
Ta= -25°C to +85°C
●Typical Application Circuit
VCC
VO
COUT
CIN
GND
FIN
CIN,COUT : Ceramic Capacitor
●Ordering Information
B
Part
Number
D
x
x
F
A
Output voltage Input
Output
Voltage Current
33: 3.3V
50: 5.0V
F:30V A1:0.1A
54: 5.4V
J2: 12V
○ Product structure : Silicon monolithic integrated circuit
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TSZ22111・14・001
1
F
P
Package
3
-
Z
T
L
Manufacturing Packaging and forming
Code
specification
FP3:SOT89-3K
TL : Emboss tape reel
○This product is not designed to have protection against radioactive rays.
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Datasheet
BDxxFA1FP3
●Block Diagram
VCC
OCP
SOFT
START
VO
TSD
GND
Figure. 1 Block Diagram
●Pin Configuration
SOT89-3K
(TOP VIEW)
FIN
reverse
1
2
3
VO GND VCC
●Pin Description
Pin No.
1
2
3
reverse
Pin name
Vo
GND
Vcc
FIN
Pin Function
Output pin
GND pin
Input pin
GND (Connected to 2pin)
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Datasheet
BDxxFA1FP3
●Absolute Maximum Ratings (Ta=25°C)
Parameter
Symbol
Limits
Unit
VCC
Vo
-0.3 to +30.0 *1
-0.3 to +18
V
V
Pd*2
1.67 *2
W
Ta
Tstg
Tjmax
-25 to +85
-55 to +150
+150
°C
°C
°C
Power supply voltage
Output voltage
Power dissipation
SOT89-3K
Operating temperature range
Storage temperature range
Maximum junction temperature
*1 Not to exceed Pd.
*2 In case Ta≧25°C (114.3mm×76.2mm×1.6mm when mounted on a 4-layer PCB based on JEDEC) is reduced by 13.4mW/°C
●Recommended Operating Conditions (Ta=25°C)
Parameter
Input power supply voltage
Output current
Symbol
VCC
IO
Min.
Vo+3.0
0.0
Max.
25.0
0.1
Unit
V
A
●Recommended Operating Condition
Parameter
Output Capacitor
Symbol
COUT
Min
0.3
*3
Typ
Max
Unit
1.0
-
μF
Conditions
Ceramic capacitor recommended
*3 The minimum value of capacitor must met this specification over full operating conditions. (Ex: Temperature, DC bias)
●Electrical Characteristics (Unless otherwise specified, Vcc= Vo+5V, Ta=25°C)
Parameter
Bias current
Line Regulation
Load Regulation
Minimum dropout voltage
Output voltage
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Symbol
Limits
Unit
Conditions
Min.
-
Typ.
300
Max.
450
μA
IO=0A, Vo=3.3V
Reg.I
Reg IO
VCO
-1
-1.5
-
300
300
400
0.5
0.5
1.0
450
450
600
1
1.5
3.0
μA
μA
μA
%
%
V
IO=0A, Vo=5.0V
IO=0A, Vo=5.4V
IO=0A, Vo=12.0V
VCC =( Vo+3V )→25.0V
IO=0→0.1A
IO=0.1A
VO
Vo×0.99
Vo
Vo×1.01
V
IO=0A
ICC
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Datasheet
BDxxFA1FP3
●Performance Curve (Reference Data)
■ BD54FA1FP3
(Unless otherwise specified, Ta=25°C, Vcc=Vo+5V, CIN=COUT=1μF)
8
6
Output Voltage: Vo [V]
7
5
Vcc 6
5V/div
5 0V
4
4
3
3
Vo
2
2
2V/div
1 0V
1
0
0
0
2
4
6
0 100 200 300 400 500 600 700 800100us/div
9001000
100μs/div
8 10 12 14 16 18 20 22 24 26
Supply Voltage: Vcc [V]
Figure 3. Input sequence
(COUT = 1μF)
Figure 2. Vcc - Vo
10
10
Io 9
50mA/8
Io 9
50mA/
8
div
7
div
0mA
6
5
5
4
4
Vo
50mV3/
div
7
6
0mA
Vo
50mV3/
5.4V
div
2
1
0
5.4V
2
1
0
0
1us/div
10 20 30 40 50 60 70 801μs/div
90 100
1μs/div
0
Figure 4. Transient Response
(Io = 0A→0.1A)
(COUT = 1μF)
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10 20 30 40 50 60 70 80100us/div
90 100
100μs/div
Figure 5. Transient Response
(Io = 0.1A→0A)
(COUT = 1μF)
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Datasheet
BDxxFA1FP3
●Performance Curve (Reference Data)
■ BD54FA1FP3
(Unless otherwise specified, Ta=25°C, Vcc=Vo+5V, CIN=COUT=1μF)
450
5.45
Bias Current: Icc [μA]
Output Voltage: Vo [V]
400
5.43
5.41
5.39
5.37
350
300
250
200
150
100
50
5.35
-30 -20 -10 0 10 20 30 40 50 60 70 80 90
0
-30 -20 -10 0
Figure 6. Ta - Vo
(Io = 0mA)
Figure 7. Ta - Icc
600
6
500
5
Output Voltage: Vo [V]
Bias Current: Icc [μA]
10 20 30 40 50 60 70 80 90
Temperature: Ta [℃]
Temperature: Ta [℃]
400
300
200
100
0
4
3
2
1
0
0
10
20
30
40
50
60
70
80
90
100
0
Output Current: Io [mA]
40
60
80
100
Output Current: Io [mA]
Figure 8. Io - Icc
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Figure 9. Io - Vo
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Datasheet
BDxxFA1FP3
●Performance Curve (Reference Data)
1.2
6
1
5
Output Voltage: Vo [V]
Dropout Voltage: Vco [V]
■ BD54FA1FP3
(Unless otherwise specified, Ta=25°C, Vcc=Vo+5V, CIN=COUT=1μF)
0.8
0.6
0.4
0.2
0
4
3
2
1
0
0
10
20
30
40
50
60
70
80
90
150
100
Output Current: Io [mA]
155
160
165
Figure 10. Minimum dropout Voltage
Figure 11. TSD
(Io = 0mA)
Figure 12. OCP
Figure 13. PSRR
(Io = 50mA)
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170
175
180
Ambient Temperature: Ta [℃]
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Datasheet
BDxxFA1FP3
●Performance Curve (Reference Data)
Equivalent Series Resistance: ESR [Ω]
■ BD54FA1FP3
(Unless otherwise specified, Ta=25°C, Vcc=10.4V, CIN=COUT=1μF)
10
1
Stable Area
0.1
0.01
0
20
40
60
80
100
Output Current: Io [mA]
Figure 14. ESR Stable Region
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Datasheet
BDxxFA1FP3
●Power Dissipation
◎SOT89-3K
Power Dissipation: Pd [W]
2
θj-a
θj-a==74.8℃/W
74.8°C/W
1.5
1
0.5
0
0
25
50
75
100
125
150
Ambient Temparature: Ta [℃]
Measurement condition: mounted on 4-layer JEDEC standard board
Board size: 114.3mm × 76.2mm × 1.6mm
When considering thermal design, operation should be maintained within the following conditions.
(The temperature mentioned below is a guaranteed temperature, therefore, margins must be considered.)
1. Ambient temperature Ta is 85°C and below.
2. Junction temperature Tj is 150°C and below.
The junction temperature Tj can be determined as follows:
Calculation based on ambient temperature Ta
Tj=Ta+θj-a×W
・θj-a: SOT89-3K 74.8°C/W
JEDEC standard 4 layers PCB
Board size: 114.3mm × 76.2mm × 1.6mm
Most of the heat loss that occurs in BDxxFA1FP3 is generated from the output Pch FET. Power loss is determined by the
product of voltage drop across Vcc-Vo and the output current. Check the conditions of output voltage and output current to be
used between Vcc-Vo and compare with the power dissipation characteristics.
In addition, power dissipation may change significantly due to board conditions because BDxxFA1FP3 uses power package. It is
important to consider the board size to be used before proceeding with the design.
Power consumption [W] = { Input voltage (Vcc) – Output voltage (Vo) } × Output current (Io: Ave)
Example) Vcc = 10.4V, Vo = 5.4V, Io(Average) = 0.1A
Power consumption [W] = ( 10.4V – 5.4V ) × 0.1A
= 0.5W
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Datasheet
BDxxFA1FP3
●Input/Output Capacitor
It is recommended that a capacitor is placed close to pin between input pin and GND as well as output pin and GND. The
input capacitor becomes more necessary when the power supply impedance is high or when the PCB trace has significant
length. Moreover, the higher the capacitance of the output capacitor the more stable the output will be, even with load and
line voltage variations. However, please check the actual functionality by mounting on a board for the actual application.
Also, ceramic capacitors usually have different thermal and equivalent series resistance characteristics and may degrade
gradually over continued use.
For additional details, please check with the manufacturer and select the best ceramic capacitor for your application.
Rated Voltage: 10V
10
B1 characteristics
GRM188B11A105KA61D
0
Rated Voltage: 10V
-10
B characteristics
Capacitance Change [%]
Rated Voltage: 6.3V
-20
B characteristics
-30
-40
Rated Voltage: 10V
-50
F characteristics
-60
Rated Voltage: 4V
X6S characteristics
-70
-80
-90
-100
0
1
2
DC Bias Voltage [V]
3
4
Ceramic Capacitor Capacitance Value - DC Bias Characteristics
(Characteristics Example)
To prevent oscillation, please attach a capacitor between VO and
GND. Generally, capacitor has ESR (Equivalent Series
Resistance). Operation will be stable in ESR-Io range*1 shown in
the right.
The 1.0µF ceramic capacitor and resistor at output in this
characteristic data are connected in series and measured.
Generally, ESR of ceramic capacitor, tantalum capacitor and
electrolytic capacitor is different. Check the ESR of capacitor to
be used and use it within the range of stable region.
However, please take note that for the same value of
capacitance of different electrolytic capacitor, ESR are not
always the same. In addition, ESR characteristics may also
change due to wiring impedance of board, input power
impedance and load impedance; therefore check the behavior in
actual application.
Equivalent Series Resistance: ESR [Ω]
●Output Capacitor Equivalent Series Resistance
10
1
Stable
Area
安定領域
0.1
0.01
0
20
40
60
80
100
Output Current: Io [mA]
*1 Ta=25°C, Vcc=6.3V to 25V, Io=0A to 0.1A
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Datasheet
BDxxFA1FP3
●Input/Output Equivalent Circuit
3pin (VCC) / 1pin (VO)
3pin (VCC)
1pin (VO)
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Datasheet
BDxxFA1FP3
●Operational Notes
(1) Absolute Maximum Value Rate
Operating the IC over the absolute maximum ratings may damage the IC. In addition, it is impossible to predict all
destructive situations such as short-circuit modes, open circuit modes, etc. Therefore, it is important to consider circuit
protection measures, like adding a fuse, in case the IC is operated in a special mode exceeding the absolute maximum
ratings.
(2) Reverse connection of power supply
Connecting the power supply in reverse polarity can damage the IC. Take precautions against reverse polarity when
connecting the power supply, such as mounting an external diode between the power supply and the IC’s power supply
terminals.
(3) Power supply line
Design the PCB layout pattern to provide low impedance ground and supply lines. Separate the ground and supply lines
of the digital and analog blocks to prevent noise in the ground and supply lines of the digital block from affecting the
analog block. Furthermore, connect a capacitor to ground at all power supply pins. Consider the effect of temperature
and aging on the capacitance value when using electrolytic capacitors.
(4) Ground voltage
The voltage of the ground pin must be the lowest voltage of all pins of the IC at all operating conditions. Ensure that no
pins are at a voltage below the ground pin at any time, even during transient condition.
(5) Thermal consideration
Use a thermal design that allows for a sufficient margin by taking into account the permissible power dissipation (Pd) in
actual operating conditions.
(6) Short between pins and mounting errors
Be careful when mounting the IC on printed circuit boards. The IC may be damaged if it is mounted in a wrong
orientation or if pins are shorted together. Short circuit may be caused be conductive particles caught between the pins.
(7) Operation under strong electromagnetic field
Operating the IC in the presence of a strong electromagnetic field may cause the IC to malfunction.
(8) Thermal shutdown circuit
The IC incorporates a built-in thermal shutdown circuit, which is designed to turn off the IC when the internal temperature
of the IC reaches a specified value. It is not designed to protect the IC from damage or guarantee its operation. Do not
continue to operate the IC after this function is activated. Do not use the IC in conditions where this function will always
be activated.
BDxxFA1FP3
TSD ON Temperature [°C] (Typ)
173
Hysteresis Temperature [°C] (Typ)
8
(9) Testing on application boards
When testing the IC on an application board, connecting a capacitor directly to a low-impedance output pin may subject
the IC to stress. Always discharge capacitors completely after each process or step. The IC’s power supply should
always be turned off completely before connecting or removing it from the test setup during the inspection process. To
prevent damage from electro static discharge, ground the IC during assembly and use similar precautions during
transport and storage.
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Datasheet
BDxxFA1FP3
(10) Regarding input pins of the IC
This monolithic IC contains P+ isolation and P substrate layers between adjacent elements in order to keep them
isolated. P-N junctions are formed at the intersection of the P layers with the N layers of other elements, creating a
parasitic diode or transistor. For example (refer to figure below):
When GND > Pin A and GND > Pin B, the P-N junction operates as a parasitic diode.
When GND > Pin B, the P-N junction operates as a parasitic transistor.
Parasitic diodes inevitably occur in the structure of the IC. The operation of parasitic diodes can result in mutual
interference among circuits, operational faults, or physical damage. Therefore, conditions that cause these diodes to
operate, such as applying a voltage lower than the GND voltage to an input pin (and thus to the P substrate) should be
avoided.
(11) Ground wiring pattern
When using both small-signal and large-current GND traces, the two ground traces should be routed separately but
connected to a single ground at the reference point of the application board to avoid fluctuations in the small-signal
ground caused by large currents. Also ensure that the GND traces of external components do not cause variations on
the GND voltage. The power supply and ground lines must be as short and thick as possible to reduce line impedance.
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Datasheet
BDxxFA1FP3
●External Measurement Drawing and Packing Forming Specification
Package Name
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SOT89-3K
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Datasheet
BDxxFA1FP3
●Marking Diagram
Output
Voltage [V]
Part Number
Marking(xx)
3.3
33
Part Number Marking
5.0
50
5.4
54
LOT Number
12.0
J2
SOT89-3K
(TOP VIEW)
xxF1
1PIN
●Revision History
Date
Revision
2014.02.04
001
New release
2014.10.31
002
Added 5.0V and 12V to output voltage line-up.
2015.06.08
003
The document control number: TSZ02201-0R6R0A600600-1-2 →TSZ02201-0GAG0A600600-1-2.
Modified the package name to SOT89-3K.
Modified external measurement drawing.
004
P.1 Ordering Information changed
P.3 Electrical characteristics added
P.6 Figure 13. PSRR modified from (Io=0mA) to (Io=50mA)
The document control number: TSZ02201-0R6R0A600600-1-2 →TSZ02201-0G2G0A600060-1-2
2016.04.11
Revision contents
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Notice
Precaution on using ROHM Products
1.
Our Products are designed and manufactured for application in ordinary electronic equipments (such as AV equipment,
OA equipment, telecommunication equipment, home electronic appliances, amusement equipment, etc.). If you
(Note 1)
intend to use our Products in devices requiring extremely high reliability (such as medical equipment
, transport
equipment, traffic equipment, aircraft/spacecraft, nuclear power controllers, fuel controllers, car equipment including car
accessories, safety devices, etc.) and whose malfunction or failure may cause loss of human life, bodily injury or
serious damage to property (“Specific Applications”), please consult with the ROHM sales representative in advance.
Unless otherwise agreed in writing by ROHM in advance, ROHM shall not be in any way responsible or liable for any
damages, expenses or losses incurred by you or third parties arising from the use of any ROHM’s Products for Specific
Applications.
(Note1) Medical Equipment Classification of the Specific Applications
JAPAN
USA
EU
CHINA
CLASSⅢ
CLASSⅡb
CLASSⅢ
CLASSⅢ
CLASSⅣ
CLASSⅢ
2.
ROHM designs and manufactures its Products subject to strict quality control system. However, semiconductor
products can fail or malfunction at a certain rate. Please be sure to implement, at your own responsibilities, adequate
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a failure or malfunction of our Products may cause. The following are examples of safety measures:
[a] Installation of protection circuits or other protective devices to improve system safety
[b] Installation of redundant circuits to reduce the impact of single or multiple circuit failure
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Our Products are designed and manufactured for use under standard conditions and not under any special or
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H2S, NH3, SO2, and NO2
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[g] Use of our Products without cleaning residue of flux (even if you use no-clean type fluxes, cleaning residue of
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[h] Use of the Products in places subject to dew condensation
4.
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5.
Please verify and confirm characteristics of the final or mounted products in using the Products.
6.
In particular, if a transient load (a large amount of load applied in a short period of time, such as pulse. is applied,
confirmation of performance characteristics after on-board mounting is strongly recommended. Avoid applying power
exceeding normal rated power; exceeding the power rating under steady-state loading condition may negatively affect
product performance and reliability.
7.
De-rate Power Dissipation depending on ambient temperature. When used in sealed area, confirm that it is the use in
the range that does not exceed the maximum junction temperature.
8.
Confirm that operation temperature is within the specified range described in the product specification.
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ROHM shall not be in any way responsible or liable for failure induced under deviant condition from what is defined in
this document.
Precaution for Mounting / Circuit board design
1.
When a highly active halogenous (chlorine, bromine, etc.) flux is used, the residue of flux may negatively affect product
performance and reliability.
2.
In principle, the reflow soldering method must be used on a surface-mount products, the flow soldering method must
be used on a through hole mount products. If the flow soldering method is preferred on a surface-mount products,
please consult with the ROHM representative in advance.
For details, please refer to ROHM Mounting specification
Notice-PGA-E
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Rev.003
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1.
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characteristics of the Products and external components, including transient characteristics, as well as static
characteristics.
2.
You agree that application notes, reference designs, and associated data and information contained in this document
are presented only as guidance for Products use. Therefore, in case you use such information, you are solely
responsible for it and you must exercise your own independent verification and judgment in the use of such information
contained in this document. ROHM shall not be in any way responsible or liable for any damages, expenses or losses
incurred by you or third parties arising from the use of such information.
Precaution for Electrostatic
This Product is electrostatic sensitive product, which may be damaged due to electrostatic discharge. Please take proper
caution in your manufacturing process and storage so that voltage exceeding the Products maximum rating will not be
applied to Products. Please take special care under dry condition (e.g. Grounding of human body / equipment / solder iron,
isolation from charged objects, setting of Ionizer, friction prevention and temperature / humidity control).
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1.
Product performance and soldered connections may deteriorate if the Products are stored in the places where:
[a] the Products are exposed to sea winds or corrosive gases, including Cl2, H2S, NH3, SO2, and NO2
[b] the temperature or humidity exceeds those recommended by ROHM
[c] the Products are exposed to direct sunshine or condensation
[d] the Products are exposed to high Electrostatic
2.
Even under ROHM recommended storage condition, solderability of products out of recommended storage time period
may be degraded. It is strongly recommended to confirm solderability before using Products of which storage time is
exceeding the recommended storage time period.
3.
Store / transport cartons in the correct direction, which is indicated on a carton with a symbol. Otherwise bent leads
may occur due to excessive stress applied when dropping of a carton.
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Use Products within the specified time after opening a humidity barrier bag. Baking is required before using Products of
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Products with other articles such as components, circuits, systems or external equipment (including software).
3.
No license, expressly or implied, is granted hereby under any intellectual property rights or other rights of ROHM or any
third parties with respect to the Products or the information contained in this document. Provided, however, that ROHM
will not assert its intellectual property rights or other rights against you or your customers to the extent necessary to
manufacture or sell products containing the Products, subject to the terms and conditions herein.
Other Precaution
1.
This document may not be reprinted or reproduced, in whole or in part, without prior written consent of ROHM.
2.
The Products may not be disassembled, converted, modified, reproduced or otherwise changed without prior written
consent of ROHM.
3.
In no event shall you use in any way whatsoever the Products and the related technical information contained in the
Products or this document for any military purposes, including but not limited to, the development of mass-destruction
weapons.
4.
The proper names of companies or products described in this document are trademarks or registered trademarks of
ROHM, its affiliated companies or third parties.
Notice-PGA-E
© 2015 ROHM Co., Ltd. All rights reserved.
Rev.003
Datasheet
General Precaution
1. Before you use our Pro ducts, you are requested to care fully read this document and fully understand its contents.
ROHM shall n ot be in an y way responsible or liabl e for fa ilure, malfunction or acci dent arising from the use of a ny
ROHM’s Products against warning, caution or note contained in this document.
2. All information contained in this docume nt is current as of the issuing date and subj ect to change without any prior
notice. Before purchasing or using ROHM’s Products, please confirm the la test information with a ROHM sale s
representative.
3.
The information contained in this doc ument is provi ded on an “as is” basis and ROHM does not warrant that all
information contained in this document is accurate an d/or error-free. ROHM shall not be in an y way responsible or
liable for an y damages, expenses or losses incurred b y you or third parties resulting from inaccur acy or errors of or
concerning such information.
Notice – WE
© 2015 ROHM Co., Ltd. All rights reserved.
Rev.001