MB3881 Datasheet, PDF (10/40 Pages) Fujitsu Component Limited. – 8-ch DC/DC Converter IC with Synchronous Rectifier for Voltage Step-up and Step-down

MB3881
s ELECTRICAL CHARACTERISTICS
Parameter
Sym-
bol
Reference voltage
VREF
Output voltage
∆VREF/
temperature stability VREF
Input stability
Line
Load stability
Load
Short-circuit output
current
Ios
Threshold voltage
VTH
Hysteresis width
VH
Reset voltage
VRST
Pin No.
24
24
24
24
24
50
50
50
(Ta = +25 °C, VCC = 9 V, VSS = 4.4 V, VDD = 5 V)
Conditions
Value
Unit
Min. Typ. Max.

2.475 2.5 2.525 V
Ta = −30 °C to +85 °C  0.5*  %
VCC = 4 V to 13 V
−10 
VREF = 0 mA to −1 mA −10 
10 mV
10 mV
VREF = 2 V
−20 −5 −1 mA
VCC =
2.6 2.8 3.0 V

 0.2  V
VCC =
1.20 1.30 1.40 V
Threshold voltage
VTH
64
VCC =
1.25 1.45 1.65 V
Input standby voltage VSTB
32

 50 100 mV
Charge current
ICS
32

−1.4 −1.0 −0.6 µA
Threshold voltage
VTH
26

0.65 0.70 0.75 V
Input standby voltage VSTB
26

 50 100 mV
Input latch voltage
VI
26

 50 100 mV
Input source current ICSCP
26

−1.4 −1.0 −0.6 µA
Oscillator frequency
fOSC
50, 53, 56, 57, 60, CT = 100 pF, RT = 11 kΩ
61, 62, 64, 51, 54 VB = 2 V
450
500
550 kHz
Frequency stability
for voltage
∆f/fdv
50, 53, 56, 57, 60,
61, 62, 64, 51, 54
VCC = 4 V to 13 V
 1 10 %
Frequency stability
for temperature
∆f/fdt
50, 53, 56, 57, 60,
61, 62, 64, 51, 54
Ta = −30 °C to +85 °C

1*  %
Output voltage
VB
36

1.980 2.000 2.020 V
VIH
SYNC input condition
VIL
50
Input “H” level
50
Input “L” level
2.0   V
0  0.8 V
Input current
*: Standard design value.
ISYNC
35
SYNC = 5 V
 50 100 µA
(Continued)
10