MB3800 Fujitsu Microelectronics, Inc., MB3800 Datasheet - Page 6

• Manufacturer Part Number: MB3800
• Description: Switching Regulator Controller (low Voltage)
• Manufacturer: Fujitsu Microelectronics, Inc.

6
MB3800
(Continued)
Output section
Output current
setting section/
Control section
Entire device
DIAGRAM
Reference input for short circuit
Idle period setting voltage
Power supply control SW
Soft start setting voltage
Sawtooth wave output
detection comparator
OUT pin waveforms
SCP pin waveforms
FB pin voltage
Parameter
Output voltage
Output source current
Output sink current
Pull down resistance
Pin voltage
Input off condition
Input on condition
Pin current range
Stand-by current
Average supply
current
OFF
ON
Soft start
t
S
Symbol
V
V
V
V
V
I
I
I
R
I
I
I
I
CCS
OFF
ON
CC
OH1
OH2
OL1
OL2
O +
O
BR
BR
O
–
R
R
I
R
R
I
R
R
R
BR/CTL pin open or V
R
O
O
B
B
B
B
B
B
B
B
= –10 mA
= 10 mA
= 390 , I
= 750 , V
= 390 , I
= 750 , V
= 390 , V
= 390 , V
= 390
= 390
Condition
—
—
O
O
O
O
CC
CC
= –15 mA
= 15 mA
Output
= 0.9 V
= 0.3 V
short
circuit
= 1.8 V
= 1.8 V
CC
Min.
–1.8
Output short circuit
–20
1.0
0.8
0.2
30
20
—
—
—
—
—
—
t
Value
PE
Typ. Max.
–30
1.2
1.0
0.1
0.1
0.3
5.5
60
30
—
—
—
—
Short circuit
detection
–0.1
–20
–45
0.2
0.2
0.4
9.3
40
—
—
—
0
1
Unit
mA
mA
mA
mA
k
V
V
V
V
V
A
A
A