BD9528AMUV Datasheet, PDF (2/30 Pages) Rohm – High Performance Regulators for PCs Main Power Supply for Notebook PCs(With Built-in Linear Regulator)

BD9528AMUV
Technical Note
●Maximum Absolute Ratings (Ta=25℃)
Parameter
Symbol
Limits
Unit
Terminal Voltage
VIN, CTL, SW1, SW2
30 *¹*²
V
EN1, EN2, PGOOD1, PGOOD2
Vo1, Vo2, MCTL1, MCTL2
6 *¹*²
V
FS1, FS2, FB1, FB2, ILIM1, ILIM2,
SS1, SS2, LG1, LG2, REF,REG2
REG1+0.3 *¹
V
BOOT1, BOOT2
35 *¹*²
V
BOOT1-SW1, BOOT2-SW2,
HG1-SW1, HG2-SW2
7 *¹*²
V
HG1
BOOT1+0.3 *¹*²
V
HG2
BOOT2+0.3 *¹*²
V
Power Dissipation1
Power Dissipation2
Power Dissipation3
Power Dissipation4
PGND1, PGND2
Pd1
Pd2
Pd3
Pd4
AGND±0.3 *¹*²
V
0.38 *³
W
0.88 *⁴
W
3.26 *⁵
W
4.56 *⁶
W
Operating temperature Range
Topr
-20～+100
℃
Storage temperature Range
Tstg
-55～+150
℃
Junction Temperature
Tjmax
+150
℃
*1 Do not however exceed Pd.
*2 Instantaneous surge voltage, back electromotive force and voltage under less than 10% duty cycle.
*3 Reduced by 3.0mW for each increase in Ta of 1℃ over 25℃ (when don’t mounted on a heat radiation board )
*4 Reduced by 7.0mW for increase in Ta of 1℃ over 25℃. (when mounted on a board 74.2mm×74.2mm×1.6mm Glass-epoxy PCB which has 1 layer.
(Copper foil area : 20.2mm²)
*5 Reduced by 26.1mW for increase in Ta of 1℃ over 25℃. (when mounted on a board 74.2mm×74.2mm×1.6mm Glass-epoxy PCB which has 4 layers.
(1^st and 4^th copper foil area : 20.2mm², 2^nd and 3^rd copper foil area : 5505mm²)
*6 Reduced by 36.5mW for increase in Ta of 1℃ over 25℃. (when mounted on a board 74.2mm×74.2mm×1.6mm Glass-epoxy PCB which has 4 layers.
(All copper foil area : 5505mm²)
●Operating Conditions (Ta=25℃)
Parameter
Symbol
VIN
CTL
EN1, EN2, MCTL1, MCTL2
Terminal Voltage
BOOT1, BOOT2
SW1, SW2
BOOT1-SW1, BOOT2-SW2,
HG1-SW1, HG2-SW2
Vo1, Vo2, PGOOD1, PGOOD2
MIN ON TIME
TONmin
★ This product should not be used in a radioactive environment.
Min.
5.5
-0.3
-0.3
4.5
-0.3
-0.3
-0.3
-
Max.
28
28
5.5
33
28
5.5
5.5
150
Unit
V
V
V
V
V
V
V
nsec
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2011.11 - Rev.A