BD9109FVM-LB Datasheet, PDF (6/23 Pages) Rohm – Synchronous Buck Converter Integrated FET

BD9109FVM-LB
Absolute Maximum Ratings(Ta=25°C)
Parameter
Symbol
Rating
Unit
VCC Voltage
PVCC Voltage
VCC
-0.3 to +7 ^{(Note 1)}
V
PVCC
-0.3 to +7 ^{(Note 1)}
V
EN Voltage
EN
-0.3 to +7
V
SW, ITH Voltage
Power Dissipation 1
Power Dissipation 2
SW,ITH
-0.3 to +7
V
Pd1
387.5 ^{(Note 2)}
mW
Pd2
587.4 ^{(Note 3)}
mW
Operating Temperature Range
Topr
-25 to +85
°C
Storage Temperature Range
Tstg
-55 to +150
°C
EN Voltage
Tjmax
+150
°C
(Note 1) Pd should not be exceeded.
(Note 2) Derating in done 3.1mW/℃ for temperatures above Ta=25℃
(Note 3) Derating in done 4.7mW/℃ for temperatures above Ta=25℃,Mounted on 70mm×70mm×1.6mm Glass Epoxy PCB.
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=25°C)
Parameter
Symbol
Min
Typ
Max Unit
VCC voltage
PVCC voltage
EN voltage
SW average output current
(Note 4) Pd should not be exceeded.
VCC ^{(Note 4)}
4.5
5.0
5.5
V
PVCC ^{(Note 4)}
4.5
5.0
5.5
V
EN
0
-
VCC
V
Isw ^{(Note 4)}
-
-
0.8
A
Electrical Characteristics(Unless otherwise specified Ta=25°C VCC=PVCC=5V EN=VCC)
Parameter
Symbol Min
Typ
Max
Unit
Conditions
Standby current
ISTB
Bias current
ICC
EN Low voltage
VENL
EN High voltage
VENH
EN input current
IEN
Oscillation frequency
Pch FET ON resistance ^{(Note 5)}
Nch FET ON resistance ^{(Note 5)}
FOSC
RONP
RONN
Output voltage
VOUT
ITH SInk current
ITHSI
ITH Source Current
ITHSO
UVLO threshold voltage
VUVLO1
UVLO hysteresis voltage
VUVLO2
Soft start time
TSS
Timer latch time
TLATCH
Output Short circuit
Threshold Voltage
VSCP
(Note 5) Outgoing inspection is not done on all products
-
-
-
2.0
-
0.8
-
-
3.234
10
10
3.6
3.65
0.5
1
-
0
250
GND
VCC
1
1
0.35
0.25
3.300
20
20
3.8
3.9
1
2
2
10
400
0.8
-
10
1.2
0.60
0.50
3.366
-
-
4.0
4.2
2
3
2.7
μA
μA
V
V
μA
MHz
Ω
Ω
V
μA
μA
V
V
ms
ms
V
EN=GND
Standby mode
Active mode
VEN=5V
PVCC=5V
PVCC=5V
VOUT =H
VOUT =L
VCC=H→L
VCC=L→H
SCP/TSD operated
VOUT =H→L
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TSZ22111 • 15 • 001
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TSZ02201-0J4J0AJ00600-1-2
21.Feb.2014 Rev.002