Buck DC/DC Converter IC Replacement Guide

Switching Regulator Series
Buck DC/DC Converter IC Replacement Guide
No.15027EAY09
From BD9328EFJ and BD9329AEFJ to BD9Cx01 Series
●Function comparison
Parameter
BD9328EFJ
Input Voltage
Range
Input Voltage
Maximum Rating
Output Voltage
Range
Output Current
Switching
Frequency
Standby Current
MOSFET On
Resistance
BD9329AEFJ
BD9C301FJ
BD9C401EFJ
BD9C501EFJ
4.2V to 18V
4.5V to 18V
20V
20V
0.9V to (VIN×0.7)V
2A
3A
(VIN×0.075)V to (VIN×0.7)V
(VIN×0.075) ≥ 0.8V
(VIN×0.125)V to (VIN×0.7)V
(VIN×0.125) ≥ 0.8V
3A
BD9C601EFJ
4A
5A
380kHz
500kHz
15μA
1μA
6A
150mΩ / 130mΩ
65mΩ / 35mΩ
50mΩ / 35mΩ
Efficiency
(12V→3.3V, 2A)
88%
91%
90.5%
Voltage Reference
0.9V
0.8V
Voltage Reference
Tolerance
±1.55%
±1.0%
Inductor
10μH
Soft Start
Adjustable
Fixed (1ms)
Automatic Recovery
Latch
Operating
Temperature Range
-40℃ to +85℃
-40℃ to +85℃
Package
HTSOP-J8
4.9mm×6.0mm
h: 1.0mm
SOP-J8
4.9mm×6.0mm
h: 1.65mm
HTSOP-J8
4.9mm×6.0mm
h: 1.0mm
Flow Soldering
Unsupported t
Supported
Unsupported
Over Current
Protection
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© 2015 ROHM Co., Ltd. All rights reserved.
4.7μH
1/1
3.3μH
JUL.2015 - Rev.A
Notice
Notes
1) The information contained herein is subject to change without notice.
2) Before you use our Products, please contact our sales representative and verify the latest specifications :
3) Although ROHM is continuously working to improve product reliability and quality, semiconductors can break down and malfunction due to various factors.
Therefore, in order to prevent personal injury or fire arising from failure, please take safety
measures such as complying with the derating characteristics, implementing redundant and
fire prevention designs, and utilizing backups and fail-safe procedures. ROHM shall have no
responsibility for any damages arising out of the use of our Poducts beyond the rating specified by
ROHM.
4) Examples of application circuits, circuit constants and any other information contained herein are
provided only to illustrate the standard usage and operations of the Products. The peripheral
conditions must be taken into account when designing circuits for mass production.
5) The technical information specified herein is intended only to show the typical functions of and
examples of application circuits for the Products. ROHM does not grant you, explicitly or implicitly,
any license to use or exercise intellectual property or other rights held by ROHM or any other
parties. ROHM shall have no responsibility whatsoever for any dispute arising out of the use of
such technical information.
6) The Products are intended for use in general electronic equipment (i.e. AV/OA devices, communication, consumer systems, gaming/entertainment sets) as well as the applications indicated in
this document.
7) The Products specified in this document are not designed to be radiation tolerant.
8) For use of our Products in applications requiring a high degree of reliability (as exemplified
below), please contact and consult with a ROHM representative : transportation equipment (i.e.
cars, ships, trains), primary communication equipment, traffic lights, fire/crime prevention, safety
equipment, medical systems, servers, solar cells, and power transmission systems.
9) Do not use our Products in applications requiring extremely high reliability, such as aerospace
equipment, nuclear power control systems, and submarine repeaters.
10) ROHM shall have no responsibility for any damages or injury arising from non-compliance with
the recommended usage conditions and specifications contained herein.
11) ROHM has used reasonable care to ensur the accuracy of the information contained in this
document. However, ROHM does not warrants that such information is error-free, and ROHM
shall have no responsibility for any damages arising from any inaccuracy or misprint of such
information.
12) Please use the Products in accordance with any applicable environmental laws and regulations,
such as the RoHS Directive. For more details, including RoHS compatibility, please contact a
ROHM sales office. ROHM shall have no responsibility for any damages or losses resulting
non-compliance with any applicable laws or regulations.
13) When providing our Products and technologies contained in this document to other countries,
you must abide by the procedures and provisions stipulated in all applicable export laws and
regulations, including without limitation the US Export Administration Regulations and the Foreign
Exchange and Foreign Trade Act.
14) This document, in part or in whole, may not be reprinted or reproduced without prior consent of
ROHM.
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More detail product informations and catalogs are available, please contact us.
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http://www.rohm.com/contact/
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© 2015 ROHM Co., Ltd. All rights reserved.
R1102A
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