BD91361MUV Datasheet, PDF (2/18 Pages) Rohm – Output 2A More High-efficiency Step-down Switching Regulator with Built-in Power MOS FET

BD91361MUV
Technical Note
●Operating conditions (Ta=-40～+105℃)
Parameter
Symbol
Power Supply Voltage
VCC
PVCC
EN Voltage
VEN
Logic input voltage
VID<1:0>
Output voltage Setting Range
VOUT
SW average output current
ISW
*6 In case set output voltage 1.6V or more, VCCMin = Vout+1.2V.
*7 Pd should not be exceeded.
Ratings
Unit
Min. Typ. Max.
2.7
3.3
5.5
V
2.7
3.3
5.5
V
0
-
5.5
V
0
-
5.5
V
0.8
-
3.3*⁶ V
-
-
4.0*⁷ A
●Electrical characteristics
◎BD91361MUV (Ta=25℃ VCC=PVCC=3.3V, EN=VCC, 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
Output Short circuit Threshold Voltage
VSCP
-
0.40 0.56
V VADJ =0.8V→0V
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2010.06 - Rev.A