BD9532EKN_08 Datasheet, PDF (3/21 Pages) Rohm – Switching Regulators for DDR-SDRAM Cores

●ELECTRICAL CHARACTERISTICS
(unless otherwise noted, Ta=25℃ VCC=5V,VDD=5V,EN/SLLM=5V,VIN=12V,REF=1.8V,RFS=68kΩ)
Parameter
Symbol
Standard Value
MIN
TYP
MAX
Unit
[Whole Device]
VCC Bias Current
Icc
-
700
900
μA
VIN Bias Current
Iin
-
100
200
μA
VCC Standby Current
Iccstb
-
0
10
μA
VIN Standby Current
Iinstb
-
100
200
μA
EN Low Voltage
Enlow
GND
-
0.8
V
EN HighVoltage
Enhigh
2.3
-
5.5
V
EN Bias Current
Ien
-
7
10
μA
VREG Voltage
Vreg
2.475
2.500
2.525
V
[Under Voltage Locked Out ]
VCC threshold voltage
VCC hysteresis voltage
VIN threshold voltage
VIN hysteresis voltage
VREG threshold voltage
VREG hysteresis voltage
[H³Reg^TM Controller]
Frequency
ON Time
MAX ON Time
MIN OFF Time
[FET Driver]
HG Higher side ON resistor
HG Lower side ON resistor
LG Higher side ON resistor
LG Lower side ON resistor
[Dead Time]
HG rising
LG rising
[SCP]
SCP Detect Voltage
SCP threshold voltage
Charge current
Standby voltage
[Soft start]
Charge current
Standby voltage
[Over Current Protection Block]
Vcc_UVLO
dVcc_UVLO
Vin_UVLO
dVin_UVLO
Vreg_UVLO
dVreg_UVLO
Fosc
Ton
Tonmax
Toffmin
HGhon
HGlon
LGhon
LGlon
Hgdead
LGdead
Vscp
Vscpth
Iscp
Vscp_stb
Iss
Vss_stb
4.1
100
4.1
100
2.0
100
-
400
-
-
-
-
-
-
-
-
REF
×0.65
1.2
1.5
-
1.5
-
4.3
160
4.3
160
2.2
160
300
500
3
450
3.0
2.0
2.0
0.5
50
50
REF
×0.7
1.25
2
-
2
-
4.5
220
4.5
220
2.4
220
-
600
-
550
6.0
4.0
4.0
1.0
-
-
REF
×0.75
1.3
2.5
50
2.5
50
V
mV
V
mV
V
mV
kHz
nsec
μsec
nsec
Ω
Ω
Ω
Ω
nsec
nsec
V
V
μA
mV
μA
mV
Current limit threshold1
Ilim1
43
50
57
mV
Current limit threshold2
Ilim2
160
200
240
mV
Reverse-current limit threshold1 ReIlim1
-
-50
-
mV
Reverse-current limit threshold2 ReIlim2
-
-200
-
mV
ILIM bias current
IILIM
-
15
-
nA
[VOUT setting ]
VOUT offset voltage
Voutoff REF-7m REF REF+7m
V
VOUT bias current
Ivout
-100
0
100
nA
REF bias current
Iref
-100
0
100
nA
Is+ Input current
IIs+
-1
0
1
μA
Is- Input current
IIs-
-1
0
1
μA
[SLLM ]
Continuous mode threshold
Vthcon VCC-0.5
-
VCC
V
SLLM threshold
VthSLLM
GND
-
0.5
V
* Design Guarantee
Condition
EN=0V
EN=0V
Ireg=100μA
Ta=-10℃ to 100℃*
VCC:Sweep up
VCC:Sweep down
VIN:Sweep up
VIN:Sweep down
VREG:Sweep up
VREG:Sweep down
ILIM=0.5V
Ta=-10℃ to 100℃*
ILIM=2.0V
Ta=-10℃ to 100℃*
Is+=1.8V
Is-=1.8V
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