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BD8301MUV fiches techniques PDF

ROHM Semiconductor - High-effciency Step-up/down Switching Regulator

Numéro de référence BD8301MUV
Description High-effciency Step-up/down Switching Regulator
Fabricant ROHM Semiconductor 
Logo ROHM Semiconductor 





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BD8301MUV fiche technique
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Single-chip Type with Built-in FET Switching Regulator Series
High-efficiency Step-up/down
Switching Regulator
with Built-in Power MOSFET
BD8301MUV
No.09027ECT07
General Description
ROHM’s highly-efficient step-up/down switching regulator BD8301MUV produces step-up/down output including 3.3 V from
1 cell of lithium battery with just one coil.
This IC adopts an original step-up/down drive system and creates a higher efficient power supply than conventional
Sepic-system or H-bridge system switching regulators.
Features
1) Highly-efficient step-up/down DC/DC converter to be constructed just with one inductor.
2) Input voltage
2.5 V - 5.5 V
3) Output current
1 A at 3.3 V
800 mA at 5.0 V
4) Incorporates soft-start function.
5) Incorporates timer latch system short protecting function.
6) High heat radiation surface mounted package
VQFN020V4040
Application
General portable equipment like portable audio or DSC/DVC
Absolute Maximum Ratings
Parameter
Symbol
Ratings
Unit
Maximum applied power voltage
Vcc,PVCC
7.0 V
Maximum input current
Iinmax
2.0 A
Maximum input voltage
Lx1 7.0 V
Lx2 7.0 V
Power dissipation
Pd 700 mW
Operating temperature range
Topr
-25 to +85
ºC
Storage temperature range
Tstg
-55 to +150
ºC
Junction temperature
Tjmax
150 ºC
*1 When installed on a 70.0 mm × 70.0 mm × 1.6 mm glass epoxy board. The rating is reduced by 5.6 mW/°C at Ta = 25°C or more.
Operating Conditions (Ta = 25°C)
Parameter
Power supply voltage
Output voltage
Symbol
Vcc
OUT
Voltage range
2.5 to 5.5
2.8 to 5.2
Unit
V
V
www.rohm.com
c 2009 ROHM Co., Ltd. All rights reserved.
1/13
2009.09 - Rev.C

PagesPages 14
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