BU33DV7NUX Datasheet, PDF (2/27 Pages) Rohm – 1.8V to 5.5V, 300mA 1ch Synchronous Boost DC/DC Converter

BU33DV7NUX
Datasheet
●Absolute maximum ratings(Ta=25℃)
Parameter
Symbol
Ratings
Unit
Condition
Maximum applied voltage
Vmax
7.0
V
Power dissipation1
Pd1
464 (Note1)
mW
1layer(74.2x74.2mm)board
(Surface heat radiation c²opper foil：6.28mm² )
Power dissipation2
Pd2
Operating temperature range Topr
Storage temperature range
Tstr
1440 (Note2)
-40 to +85
-55 to +125
4layer(74.2x74.2mm)board
mW (1,4layer heat radiation copper foil：6.28mm² )
(2,3layer heat radiation copper foil：5500mm² )
o_C
o_C
*1 When it is used by more than Ta=25℃, it is reduced by 4.64mW/℃.
*2 When it is used by more than Ta=25℃, it is reduced by 14.4mW/℃.
●Operating conditions
Parameter
Power supply voltage range
Symbol
VCC
Ratings
1.8 to 5.5
Unit
Condition
V VIN terminal voltage
●Electrical characteristics [BU34DV7NUX]
(Unless otherwise specified Ta=25℃、VIN=2.4V)
Parameter
Symbol
Min.
Typ.
Circuit current1(EN=0V)
Circuit current2(EN=0V)
Circuit current1 no switching
(EN=VIN,VOUT=5V)
Circuit current2 no switching
(EN=VIN,VOUT=5V)
Circuit current1(EN=VIN)
Circuit current2(EN=VIN)
Oscillation frequency
Output voltage range
Current limit
EN Input High
EN Input Low
MODE Input High
MODE Input Low
RSTBO output low voltage
RSTBO output high voltage
RSTBC output resistance
SWN1 switch on resistance
SWP1 switch on resistance
SWN2 switch on resistance
SWP2 switch on resistance
UVLO Release Threshold
UVLO Detect Threshold
UVLO Hysteresis
VIN Thru
VIN Thru Hysteresis
ICC1A
ICC2A
ICC1B
-
1.6
-
0.3
-
140
ICC2B
ICC1C
ICC2C
Fsw
Vout
Ilim
VIH_EN
VIL_EN
VIH_MODE
VIL_MODE
Vrstol
Vrstoh
Rrstbc
Rswn1
Rswp1
Rswn2
Rswp2
VuvloR
VuvloD
Vuvlohys
Vinthru
Vinthruhys
-
25
-
-
0.5
3.23
1.4
0.9
-
0.9
-
-
VIN-0.2
450
-
-
-
-
1.9
1.75
-
3.2
20
3.5
30
0.6
3.3
1.85
-
-
-
-
0.1
VIN-0.1
600
90
160
1.0
60
2.0
1.8
0.2
3.3
50
Max.
4.5
1.5
250
50
-
-
0.7
3.37
2.2
-
0.2
-
0.2
0.2
-
750
-
-
-
-
2.1
1.85
-
3.4
80
Unit
µA
µA
µA
µA
mA
µA
MHz
V
A
V
V
V
V
V
V
kΩ
mΩ
mΩ
kΩ
Ω
V
V
V
V
mV
Condition
EN=0V,MODE=0V
EN=0V,MODE=VIN
EN=VIN,MODE=0V,
VOUT=5.0V (not include SW)
EN=VIN,MODE=VIN,
VOUT=5.0V (not include SW)
EN=VIN,MODE=0V, Io=0mA
EN=VIN,MODE=VIN, Io=0mA
Io=1mA
DC - Current
Ioi=100uA,MODE=0V
Ioi=-100uA,MODE=0V
VOUT=3.3V
MODE=VIN,EN=0V
MODE=0V,EN=0V
VIN rising
VIN falling
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TSZ22111・15・001
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TSZ02201-0Q1Q0AH00110-1-2
02.Aug.2012 Rev.001