MB3887 Fujitsu, MB3887 Datasheet - Page 7

• Manufacturer Part Number: MB3887
• Description: DC/DC Converter IC
• Manufacturer: Fujitsu

* : Refer to “ THE SEQUENCE OF THE START-UP AND OFF OF THE POWER SUPPLY” for details.
WARNING: The recommended operating conditions are required in order to ensure the normal operation of the
Power supply voltage
Reference voltage output
current
VH terminal output current
Input voltage
OUTD terminal output voltage
OUTD terminal output current
CTL terminal input voltage
Output current
Peak output current
Oscillation frequency
Timing resistor
Soft-start capacitor
VH terminal capacitor
Reference voltage output
capacitor
Operating ambient
temperature
RECOMMENDED OPERATING CONDITIONS
Parameter
semiconductor device. All of the device’s electrical characteristics are warranted when the device is
operated within these ranges.
Always use semiconductor devices within their recommended operating condition ranges. Operation
outside these ranges may adversely affect reliability and could result in device failure.
No warranty is made with respect to uses, operating conditions, or combinations not represented on
the data sheet. Users considering application outside the listed conditions are advised to contact their
FUJITSU representatives beforehand.
Symbol
V
I
C
V
V
V
I
I
f
C
V
I
OUTD
Ta
I
OUTD
OSC
R
C
REF
OUT
OUT
VH
CTL
REF
INE
INC
CC
VH
T
S
VCC, VCC (O) terminal*
−INE1 to −INE3, +INE1,
+INE2 terminal
+INC1, +INC2, −INC1,
−INC2 terminal
Duty ≤ 5 %
(t = 1 / fosc × Duty)
Conditions
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
−600
Min
−45
100
−30
−1
27
⎯
⎯
⎯
8
0
0
0
0
0
0
Value
0.022
Typ
290
+25
0.1
0.1
47
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
V
CC
+600
Max
+45
500
130
+85
MB3887
V
1.0
1.0
1.0
25
30
17
25
0
2
− 1.8
CC
Unit
kHz
mA
mA
mA
mA
mA
kΩ
µF
µF
µF
°C
V
V
V
V
V
7