BD8629FS Datasheet, PDF (2/12 Pages) Rohm – Built-in 1ch FET Synchronous Rectification Type DC/DC converters

● Electrical characteristic
(Unless otherwise noted Ta=25℃, V_IN=5.6V)
Parameter
Symbol
Specification value
MIN
TYP
MAX
UNIT
Condition
VIN supply current (operating)
VIN supply current (standby)
I_{Q_active}
-
1.3
2.0
mA
V_FB = 0.83V, V_FC = 1V
I_{Q_stby}
-
350
700
μA
V_EN = 0V
Reference voltage (VREF)
Output rise detection voltage
Output decrease detection voltage
Terminal PDET output current
V_REF
V_OVP
V_LVP
I_PDET
0.792
0.8
0.808
V
30
60
90
mV Monitoring FB terminal
-90
-60
-30
mV Monitoring FB terminal
1
-
-
mA
V_PDET< 0.5V
Oscillation frequency
Pch FET ON resistance
Nch FET ON resistance
UVLO voltage
SW leak current
EN terminal H threshold voltage
EN terminal L threshold voltage
SS/DELAY terminal source current
f_OSC
R_PFET
R_NFET
V_UVLO
I_LSW
V_ENH
V_ENL
I_SSSO
500
550
600
kHz
R_OSC = 220kΩ
-
170
240
mΩ I_SW = 1A
-
130
200
mΩ I_SW = -1A
3.8
4.0
4.2
V
-
0
2.0
-
1
μA
V_EN= 0V, V_IN = 6V
-
V
-
-
0.5
V
2
4
6
μA
V_FB :FB terminal voltage, V_EN :EN terminal voltage, V_FC :FC terminal voltage, V_PDET: PDET terminal voltage
Current capability should not exceed Pd.
Permissible loss
Fig. 1 heat decrease curve
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