BD9528AMUV Datasheet, PDF (3/30 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.
Condition
VIN standby current
VIN bias current
ISTB
IIN
70
150
250
μA EN1=EN2=0V, CTL=5V
60
130
230
μA _Vo1=5V
VIN shut down mode current
ISHD
6
12
18
μA CTL=0V
CTL Low Voltage
VCTLL
-0.3
-
0.8
V
CTL High Voltage
VCTLH
2.3
-
28
V
CTL bias current
ICTL
-18
-12
-6
μA CTL=0V
EN Low Voltage
VENL
-0.3
-
0.8
V
EN High Voltage
VENH
2.3
-
5.5
V
EN bias current
[5V linear regulator](VIN)
REG1 output voltage
IEN
VREG1
-
3
6
μA EN=3V
4.90
5.00
5.10
V IREG1=1mA
Maximum current
IREG1
100
-
-
mA IREG2=0mA*
Line Regulation
Reg.l1
-
90
180
mV VIN=5.5 to 28V
Load Regulation
[3.3V linear regulator]
REG2 output voltage
Reg.L1
VREG2
-
30
50
mV IREG1=0 to 30mA
3.27
3.30
3.33
V IREG2=1mA
Maximum current
IREG2
100
-
-
mA IREG1=0mA*
Line Regulation
Reg.l2
-
-
20
mV VIN=5.5 to 28V
Load Regulation
[5V linear regulator](Vo1)
Input threshold voltage
Reg.L2
-
-
30
mV IREG2=0 to 30mA
REG1th
4.1
4.4
4.7
V Vo1: Sweep up
Input delay time
TREG1
1.5
3
6
ms
Switch resistance
RREG1
-
1.0
3.0
Ω
[Under Voltage lock out block]
REG1 threshold voltage
REG1_UVLO 3.9
4.2
4.5
V REG1: Sweep up
Hysteresis voltage
[Output voltage sense block]
Feedback voltage1
dV_UVLO
50
100
200
mV REG1: Sweep down
VFB1
0.693
0.700
0.707
V
FB1 bias current
IFB1
-
0
1
μA FB1=REF
Output discharge resistance1
RDISOUT1
50
100
200
Ω
Feedback voltage2
VFB2
0.693
0.700
0.707
V
FB2 bias current
IFB2
-
0
1
μA FB2=REF
Output discharge resistance2
RDISOUT2
50
* IREG1+IREG2≦100mA
100
200
Ω
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2011.11 - Rev.A