MB3870 Fujitsu Media Devices, MB3870 Datasheet - Page 7

• Manufacturer Part Number: MB3870
• Description: Pentium II DC/DC Converter IC
• Manufacturer: Fujitsu Media Devices

WARNING: The recommended operating conditions are required in order to ensure the normal operation of the
Power supply voltage
Bias voltage
Boot voltage
Reference voltage output
current
Input voltage
Output current
Peak output current
Oscillator frequency
Timing resistance
Boot capacitance
Reference voltage output
capacitance
Soft start capacitance
Discharge control resistance
Short detection capacitance
Operating 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 the recommended operating conditions. 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 representative beforehand.
V
V
V
I
V
V
V
I
I
I
f
R
C
C
C
R
C
Ta
OR
O
PG
O
OSC
Symbol
CC
B
CB
IN
IN
IN
T
B
REF
S
S
SCP
–IN pin
CTL, ENB,
VD4 to VD0 pins
VSENSE
OUT pin
PWRGOOD pin
Duty
(t = 1/f
Condition
OSC
5%
—
—
—
—
—
—
—
—
—
—
—
—
Duty)
–100
–700
Min.
100
–30
4.6
—
—
–1
—
51
—
—
—
—
—
0
0
0
Value
4700
2200
Typ.
200
130
100
+25
0.1
0.1
—
—
—
—
—
—
—
—
5
5
V
MB3870
CC
10000
10000
Max.
100
700
500
270
470
+85
V
1.0
1.0
18
18
30
18
0
1
– 0.9
CC
Unit
kHz
mA
mA
mA
mA
k
k
pF
pF
V
V
V
V
V
V
C
F
F
7