BD91361MUV_12 Datasheet, PDF (3/23 Pages) Rohm – 2.7V to 5.5V, 4A 1ch Synchronous Buck Converter Integrated FET

BD91361MUV
Datasheet
●Absolute Maximum Ratings(Ta=25℃)
Parameter
VCC Voltage
PVCC Voltage
Symbol
VCC
PVCC
Ratings
Unit
-0.3 to +7 *¹
V
-0.3 to +7 *¹
V
BST Voltage
VBST
-0.3 to +13
V
BST_SW Voltage
VBST-SW
-0.3 to +7
V
EN Voltage
VEN
-0.3 to +7
V
SW,ITH Voltage
Power Dissipation 1
Power Dissipation 2
Power Dissipation 3
Power Dissipation 4
VSW, VITH
-0.3 to +7
V
Pd1
0.34 *²
W
Pd2
0.70 *³
W
Pd3
2.21 *⁴
W
Pd4
3.56 *⁵
W
Operating temperature range
Topr
-40 to +105
℃
Storage temperature range
Tstg
-55 to +150
℃
Maximum junction temperature
Tjmax
+150
℃
*1 Pd should not be exceeded.
*2 IC only
*3 1-layer. mounted on a 74.2mm×74.2mm×1.6mm glass-epoxy board, occupied area by copper foil : 10.29mm²
*4 4-layer. mounted on a 74.2mm×74.2mm×1.6mm glass-epoxy board, 1st and 4th copper foil area : 10.29mm² , 2nd and 3rd copper foil area : 5505mm²
*5 4-layer. mounted on a 74.2mm×74.2mm×1.6mm glass-epoxy board, occupied area by copper foil : 5505mm², in each layers
●Recommended Operating Ratings (Ta=-40 to +105℃)
Parameter
Symbol
Ratings
Unit
Min. Typ. Max.
Power Supply Voltage
VCC
2.7
3.3
5.5
V
PVCC
2.7
3.3
5.5
V
EN Voltage
VEN
0
-
5.5
V
Logic input voltage
Output voltage Setting Range
SW average output current
VID<1:0>
0
VOUT
0.8
ISW
-
-
5.5
V
-
3.3*⁶
V
-
4.0*⁷
A
*6 In case set output voltage 1.6V or more, VCCMin = Vout+1.2V.
*7 Pd should not be exceeded.
●Electrical Characteristics
(Ta=25℃ VCC=PVCC=3.3V, EN=VCC, VID<1>=VID<0>=0V, R1=10kΩ, R2=5kΩ, unless otherwise specified.)
Parameter
Symbol
Limits
Min. Typ. Max.
Unit
Conditions
Standby current
ISTB
-
0
10
µA EN=GND
Active current
ICC
-
250
500
µA
EN Low voltage
VENL
-
GND 0.8
V Standby mode
EN High voltage
VENH
2.0 Vcc
-
V Active mode
EN input current
IEN
-
3
10
µA VEN=3.3V
VID Low voltage
VVIDL
-
GND 0.8
VID High voltage
VVIDH
2.0 Vcc
-
VID input current
IVID
-
3
10
VVID=3V
Oscillation frequency
FOSC
0.8
1
1.2 MHz
High side FET ON resistance
RONH
-
60
90
mΩ PVCC=3.3V
Low side FET ON resistance
RONL
-
55
85
mΩ PVCC=3.3V
ADJ Voltage
VADJ
0.788 0.800 0.812 V VID<1:0>=(0,0)
ITH SInk current
ITHSI
10
18
-
µA VADJ=1V
ITH Source Current
ITHSO
10
18
-
µA VADJ=0.6V
UVLO threshold voltage
VUVLO1 2.400 2.500 2.600
V VCC=3.3V→0V
UVLO release voltage
VUVLO2 2.425 2.550 2.700
V VCC=0V→3.3V
Soft start time
TSS
0.5
1
2
ms
Timer latch time
TLATCH
0.5
1
2
ms SCP/TSD
Output Short circuit Threshold Voltage
VSCP
-
0.40 0.56
V VADJ =0.8V→0V
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TSZ02201-0J3J0AJ00200-1-2
02.MAR.2012 Rev.001