BD9141MUV Datasheet, PDF (2/19 Pages) Rohm – Output 2A or More High-efficiency Step-down Switching Regulator with Built-in Power MOSFET

BD9141MUV
●Operating Conditions (Ta=-40～+105℃)
Parameter
VCC Voltage
PVCC Voltage
Symbol
BD9141MUV
Min.
Typ.
Max.
Unit
VCC ^*6
4.5^*7
8.0
13.2
V
PVCC ^*6
4.5^*7
8.0
13.2
V
EN Voltage
SW average output current
Output voltage Setting Range
＊6 Pd should not be exceeded.
＊7 VccMin. = Vout + 1.3V.
VEN
0
Isw ^*6
-
VOUT^*7
2.5
-
VCC
V
-
2.0
A
-
6.0
V
Technical Note
●Electrical Characteristics
◎BD9141MUV (Ta=25℃, VCC=PVCC=8.0V, EN=VCC, R1=8.2kΩ, R2=43kΩ, unless otherwise specified.)
Parameter
Symbol
Min.
Typ.
Max.
Unit
Conditions
Standby current
ISTB
-
0
10
μA EN=GND
Bias current
ICC
-
300
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
-
1.6
10
μA
VEN=8V
Oscillation frequency
FOSC
400
500
600
KHz
Pch FET ON resistance
RONP
-
150
300
mΩ
PVCC=8V
Nch FET ON resistance
RONN
-
80
160
mΩ
PVCC=8V
ADJ Voltage
VADJ
0.788
0.800
0.812
V
ITH SInk current
ITHSI
10
20
-
μA
VADJ=1.0V
ITH Source Current
ITHSO
10
20
-
μA
VADJ=0.6V
UVLO threshold voltage
VUVLO1
3.90
4.10
4.30
V
VCC=8V→0V
UVLO release voltage
VUVLO2
3.95
4.20
4.50
V
VCC=0V→8V
Soft start time
TSS
0.5
1
2
ms
Timer latch time
TLATCH
1
2
3
ms
SCP/TSD operated
Output Short circuit
Threshold Voltage
VSCP
-
0.4
0.56
V
VADJ=0.8V→0V
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
2/18
2009.06 - Rev.A