BD9528AMUV Datasheet, PDF (4/30 Pages) Rohm – High Performance Regulators for PCs Main Power Supply for Notebook PCs(With Built-in Linear Regulator)

BD9528AMUV
Technical Note
●ELECTRICAL CHARACTERISTICS
(unless otherwise noted, Ta=25℃ VIN=12V, CTL=OPEN, EN1=EN2=5V, FS1=FS2=51kΩ)
Parameter
Symbol
Limits
Unit
Min.
Typ.
Max.
[H³REG block]
Condition
Ontime1
TON1
0.760
0.910
1.060
μs Vo1= 5V
Ontime2
TON2
0.470
0.620
0.770
μs Vo2= 3.3V
Maximum On time 1
TONMAX1 2.5
5
10
μs Vo1= 5V
Maximum On time 2
TONMAX2 1.65
3.3
6.6
μs Vo2= 3.3V
Minimum Off time
TOFFMIN
-
[FET driver block]
HG higher side ON resistor
HGHON
-
0.2
0.4
μs
3.0
6.0
Ω
HG lower side ON resistor
HGLON
-
2.0
4.0
Ω
LG higher side ON resistor
LGHON
-
2.0
4.0
Ω
LG lower side ON resistor
[Over voltage protection block]
OVP threshold voltage
OVP Hysteresis
[Short circuit protection block]
SCP threshold voltage
Delay time
Current limit protection block]
Offset voltage
[Power good block]
Power good low threshold
Power good low voltage
LGLON
VOVP
dV_OVP
VSCP
TSCP
dVSMAX
VPGTHL
VPGL
-
0.5
1.0
0.77
(+10%)
50
0.84
(+20%)
150
0.91
(+30%)
300
0.42
(-40%)
0.4
0.49
(-30%)
0.75
0.56
(-20%)
1.5
80
100
120
0.525
(-25%)
-
0.595
(-15%)
0.1
0.665
(-5%)
0.2
Ω
V
mV
V
ms
mV ILIM=100kΩ
V
V IPGOOD=1mA
Delay time
TPGOOD
0.4
0.75
1.5
ms
Power good leakage current
ILEAKPG
-2
0
2
μA VPGOOD=5V
[Soft start block]
Charge current
ISS
1.5
2.3
3.1
μA
Standby voltage
[Mode control block]
MCTL Low voltage
MCTL High voltage
MCTL bias current
VSS_STB
-
VMCTL_L
-0.3
VMCTL_H
2.3
Imctl
8
-
50
mV
-
0.3
V
-
REG1
+0.3
V
16
24
μA MCTL=5V
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2011.11 - Rev.A