BD9161FVM_12 Datasheet, PDF (3/19 Pages) Rohm – 2.5V to 4.5V, 0.6A 1ch Synchronous Buck Converter Integrated FET

BD9161FVM
●Absolute Maximum Ratings(Ta=25℃)
Parameter
Symbol
Rating
Unit
VCC voltage
VCC
-0.3 to +7 *1
V
PVCC voltage
PVCC
-0.3 to +7 *1
V
EN Voltage
EN
-0.3 to +7
V
SW, ITH Voltage
SW,ITH
-0.3 to +7
V
Power Dissipation 1
Pd1
387.5*2
mW
Power Dissipation 2
Pd2
587.4*3
mW
Operating temperature range
Topr
-25 to +85
℃
Storage temperature range
Tstg
-55 to +150
℃
EN voltage
Tjmax
+150
℃
*1 Pd should not be exceeded.
*2 Derating in done 3.1mW/℃ for temperatures above Ta=25℃.
*3 Derating in done 4.7mW/℃ for temperatures above Ta=25℃,Mounted on 70mm×70mm×1.6mm Glass Epoxy PCB.
Datasheet
●Operating Ratings(Ta=25℃)
Parameter
VCC voltage
PVCC voltage
EN voltage
Output Voltage Setting Range
SW, ITH average output current
*4 Pd should not be exceeded.
Limits
Symbol
Unit
Min. Typ. Max.
VCC^*4
2.5
3.3
4.5
V
PVCC^*4
2.5
3.3
4.5
V
EN
0
-
VCC
V
SW,ITH
1.0
-
3.3
V
Isw^*4
-
-
0.6
A
●Electrical Characteristics
◎(Ta=25℃, VCC=PVCC=3.3V, EN=VCC, unless otherwise specified.)
Parameter
Limits
Symbol
Min.
Typ.
Standby current
ISTB
-
0
Bias current
ICC
-
200
EN Low voltage
VENL
-
GND
EN High voltage
VENH
2.0
VCC
EN input current
IEN
-
1
Oscillation frequency
FOSC
0.8
1
Pch FET ON resistance
RONP
-
0.35
Nch FET ON resistance
RONN
-
0.37
Output voltage
VOUT
0.784
0.8
ITH SInk current
ITHSI
10
20
ITH Source Current
ITHSO
10
20
UVLO threshold voltage
VUVLO1
2.2
2.3
UVLO hysteresis voltage
VUVLO2
2.22
2.35
Soft start time
TSS
0.5
1
Timer latch time
Output Short circuit
Threshold Voltage
TLATCH
1
2
VSCP
-
0.4
Max.
10
400
0.8
-
10
1.2
0.6
0.68
0.816
-
-
2.4
2.5
2
3
0.56
Unit
Conditions
μA
μA
V
V
μA
MHz
Ω
Ω
V
μA
μA
V
V
ms
ms
V
EN=GND
Standby mode
Active mode
VEN=3.3V
PVCC=3.3V
PVCC=3.3V
VOUT =H
VOUT =L
VCC=H→L
VCC=L→H
SCP/TSD operated
VOUT =H→L
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TSZ02201-0J3J0AJ00190-1-2
02.MAR.2012 Rev.001