BD9151MUV Datasheet, PDF (2/17 Pages) Rohm – Output 1.5A or Less High Efficiency Step-down Switching Regulator with Built-in Power MOSFET

BD9151MUV
●Electrical Characteristics
◎(Unless otherwise noted, Ta=25℃, AVCC=PVCC=3.3V, EN=AVCC)
Parameter
Symbol
MIN.
Limit
TYP.
Standby Current
ISTB
-
0
Bias Current
ICC
-
400
EN Low Voltage
VENL
-
GND
EN High Voltage
VENH
2
Vcc
EN Input Current
IEN
-
1
Oscillation Frequency
FOSC
0.8
1.0
Pch FET ON Resistance
RONP1
-
RONP2
-
0.27
0.18
Nch FET ON Resistance
RONN1
-
RONN2
-
0.27
0.18
ITH Sink Current 1
ITHSI1
10
20
ITH Source Current 1
ITHSO1
10
20
ITH Sink Current 2
ITHSI2
10
20
ITH Source Current 2
ITHSO2
10
20
FB Reference Voltage 1
FB1
1.773
1.800
FB Reference Voltage 2
FB2
1.182
1.200
UVLO Threshold Voltage
VUVLOL
2.4
2.5
UVLO Release Voltage
VUVLOH
2.45
2.6
Reset Threshold Voltage
PG1
2.74
2.87
Reset Release Voltage
PG2
2.84
2.97
Reset ON resistance
RONPG
-
140
Reset Delay
TPG
8
16
MONI Discharge Resistance
RMONI
-
110
PGATEB Sink Current
IPGATEB
1.5
4
Soft start time
TSS
0.25
0.5
Timer latch time
TLATCH
0.5
1.0
Output Short circuit
Threshold Voltage
VSCP1
-
0.9
VSCP2
-
0.6
MAX
10
800
0.8
-
10
1.2
0.46
0.30
0.46
0.30
-
-
-
-
1.827
1.218
2.6
2.8
3.00
3.10
240
32
190
6.5
1.0
2.0
1.26
0.84
Technical Note
Unit
µA
µA
V
V
µA
MHz
Ω
Ω
Ω
Ω
µA
µA
µA
µA
V
V
V
V
V
V
Ω
ms
Ω
uA
ms
ms
V
V
Conditions
EN=0V
In standby mode
In active mode
VEN=2V
AVCC = PVCC =3.3V
AVCC = PVCC =3.3V
AVCC = PVCC =3.3V
AVCC = PVCC =3.3V
VFB1=2.0V
VFB 1=1.6V
VFB 2=1.4V
VFB 2=1.0V
±1.5%
±1.5%
AVCC =3.3→0V
AVCC =0→3.3V
AVCC =3.3V→0V
AVCC =0V→3.3V
AVCC =3.3V
In SCP/TSD operation
FB1=1.8→0V
FB2=1.2→0V
●Top View
4.0±0.1
D9151
Lot No.
S
0.08 S
C0.2 ^2.1±0.1
1
5
20
6
16
15
1.0
0.5
10
11
0.25^+-00..0045
VQFN020V4040 (Unit :mm)
Fig.1 BD9151MUV TOP View
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© 2009 ROHM Co., Ltd. All rights reserved.
2/16
2009.08 - Rev.A