MB39C308 Datasheet, PDF (15/60 Pages) Fujitsu Component Limited. – 6ch DC/DC Converter IC for LPIA Platform VR

MB39C308
Parameter
Vo2 output over voltage
threshold
CH2 block ^{Vo2 over current limit}
[CH2]
FB2 input resistance
Soft start time
CH3 output voltage
High-side FET
on-resistance
Low-side FET
on-resistance
PVDD3 standby current
CH3 block
[CH3]
CH3 efficiency
Symbol
(Ta = + 25 °C, AVDD = PVDD1 to PVDD7 = 7.2 V)
Condition
Value
Unit
Min Typ Max
Vo2 FB2 pin
3.894*¹ 3.96*¹ 4.026*¹ V
IOCP2
RFB2
SS2
Vo3
RONH3
RONL3
IPVDD3S
ηL31
ηL32
ηT31
ηT32
ηF31
ηF32
IO2
RonH1 = 16 mΩ, L = 3.3 μH
6.7*¹
FB2 pin
⎯
FB2 pin
SS1 = SS2 = AGND pin
1.19
VSEL34 = “H” Level,
FB3 pin
1.71
VSEL34 = “L” Level,
FB3 pin
1.425
LX3 pin = −100 mA,
VGS = 5 V
⎯
LX3 pin = 100 mA,
VGS = 5 V
⎯
CTL34 pin = 0 V,
PVDD3 pin = 12.6 V
⎯
VSEL34 pin = “H” Level,
Vo3 = 1.8 V
0.05 × Io (Max) < Io <
85*³
0.3 × Io (Max)
VSEL34 pin = “L” Level,
Vo3 = 1.5 V
0.05 × Io (Max) < Io <
82*³
0.3 × Io (Max)
VSEL34 pin = “H” Level,
Vo3 = 1.8 V
0.3 × Io (Max) < Io <
87*³
0.6 × Io (Max)
VSEL34 pin = “L” Level,
Vo3 = 1.5 V
0.3 × Io (Max) < Io <
85*³
0.6 × Io (Max)
VSEL34 pin = “H” Level,
Vo3 = 1.8 V
0.6 × Io (Max) < Io < Io
87*³
(Max)
VSEL34 pin = “L” Level,
Vo3 = 1.5 V
0.6 × Io (Max) < Io < Io
85*³
(Max)
7.9*¹
220
1.4
1.8
1.5
65*¹
40*¹
⎯
⎯
⎯
⎯
⎯
⎯
⎯
9.0*¹ A
⎯ kΩ
1.61 ms
1.89 V
1.575 V
⎯ mΩ
⎯ mΩ
15 μA
⎯
%
⎯
%
⎯
%
⎯
%
⎯
%
⎯
%
(Continued)
DS04-27261-6E
15