BD9123MUV_14 Datasheet, PDF (3/28 Pages) Rohm – Synchronous Buck Converter with Integrated FET

BD9123MUV
Datasheet
Absolute Maximum Ratings (Ta=25°C)
Parameter
Symbol
Rating
Unit
VCC Voltage
PVCC Voltage
VCC
PVCC
-0.3 to +7 ^{(Note 1)}
V
-0.3 to +7 ^{(Note 1)}
V
EN,SW,ITH Voltage
VEN, VSW, VITH
-0.3 to +7
V
Logic Input Voltage
Power Dissipation 1
VVID<2:0>
Pd1
-0.3 to +7
V
0.27 ^{(Note 2)}
W
Power Dissipation 2
Pd2
0.62 ^{(Note 3)}
W
Power Dissipation 3
Pd3
1.77 ^{(Note 4)}
W
Power Dissipation 4
Pd4
2.66 ^{(Note 5)}
W
Operating Temperature Range
Topr
-40 to +95
°C
Storage Temperature Range
Tstg
-55 to +150
°C
Maximum Junction Temperature
Tjmax
+150
°C
(Note 1) Pd should not be exceeded.
(Note 2) IC only
(Note 3) Mounted on a 1-layer 74.2mmx74.2mmx1.6mm glass-epoxy board, occupied area by copper foil : 6.28mm²
(Note 4) Mounted on a 4-layer 74.2mmx74.2mmx1.6mm glass-epoxy board, 1^st and 4^th copper foil area : 6.28mm² , 2^nd and 3^rd copper foil area : 5505mm²
(Note 5) Mounted on a 4-layer 74.2mmx74.2mmx1.6mm glass-epoxy board, occupied area by copper foil : 5505mm², in each layers
Caution: Operating the IC over the absolute maximum ratings may damage the IC. The damage can either be a short circuit between pins or an open circuit
between pins and the internal circuitry. Therefore, it is important to consider circuit protection measures, such as adding a fuse, in case the IC is operated over
the absolute maximum ratings.
Recommended Operating Conditions (Ta=-40°C to +95°C)
Parameter
Power Supply Voltage
EN Voltage
Logic Input Voltage
Output Voltage Setting Range
SW Average Output Current
(Note 6) Pd should not be exceeded.
Symbol
VCC
PVCC
VEN
VVID<2:0>
VOUT
ISW
Min
2.7
2.7
0
0
0.85
-
Rating
Unit
Typ
Max
3.3
5.5
V
3.3
5.5
V
-
VCC
V
-
5.5
V
-
1.2
V
-
1.2^{(Note 6)}
A
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02.Oct.2014 Rev.002