BD9111NV_14 Datasheet, PDF (3/25 Pages) Rohm – Synchronous Buck Converter with Integrated FET

BD9111NV
Datasheet
Absolute Maximum Ratings (Ta=25°C)
Parameter
Symbol
Rating
Unit
VCC Voltage
VCC
-0.3 to +7 ^{(Note 1)}
V
PVCC Voltage
PVCC
-0.3 to +7 ^{(Note 1)}
V
EN Voltage
VEN
-0.3 to +7
V
SW, ITH Voltage
VSW,VITH
-0.3 to +7
V
Power Dissipation 1
Pd1
0.9 ^{(Note 2)}
W
Power Dissipation 2
Pd2
3.9 ^{(Note 3)}
W
Operating Temperature Range
Topr
-25 to +105
°C
Storage Temperature Range
Tstg
-55 to +150
°C
Maximum Junction Temperature
Tjmax
+150
°C
(Note 1) Pd should not be exceeded.
(Note 2) Reduce by 7.2mW/°C for temperatures above Ta=25°C, mounted on 70mmx70mmx1.6mm Glass Epoxy PCB (the density of copper:3%)
(Note 3) Reduce by 31.2mW/°C for temperatures above Ta=25°C, mounted on JESD51-7.
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
Rating
Symbol
Unit
Min
Typ
Max
VCC Voltage
VCC ^{(Note 4)}
4.5
5.0
5.5
V
PVCC Voltage
PVCC(Note4)
4.5
5.0
5.5
V
EN Voltage
VEN
0
-
VCC
V
SW Average Output Current
Isw ^{(Note 4)}
-
-
2.0
A
(Note 4) Pd should not be exceeded.
Electrical Characteristics (Ta=25°C, VCC=PVCC=3.3V, VEN=VCC)
Parameter
Symbol
Min
Limit
Typ
Standby Current
ISTB
-
0
Bias Current
ICC
-
250
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
-
200
Nch FET ON Resistance
RONN
-
150
Output Voltage
VOUT
3.250
3.300
ITH SInk Current
ITHSI
10
20
ITH Source Current
ITHSO
10
20
UVLO Threshold Voltage
VUVLO1
3.6
3.8
UVLO Release Voltage
VUVLO2
3.65
3.90
Soft Start Time
tSS
0.5
1
Timer Latch Time
tLATCH
1
2
Output Short circuit Threshold Voltage VSCP
-
1.65
Max
10
450
0.8
-
10
1.2
320
270
3.350
-
-
4.0
4.2
2
3
2.31
Unit
Conditions
μA
μA
V
V
μA
MHz
mΩ
mΩ
V
μA
μA
V
V
ms
ms
V
EN=GND
Standby mode
Active mode
VEN=5V
PVCC=5V
PVCC=5V
VOUT=3.6V
VOUT=3.0V
VCC=5V to 0V
VCC=0V to 5V
SCP/TSD operated
VOUT=3.3V to 0V
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TSZ02201-0J3J0AJ00100-1-2
02.Oct.2014 Rev.002