MB3800 Datasheet, PDF (7/21 Pages) Fujitsu Component Limited. – Switching Regulator Controller (Low Voltage)

MB3800
(Continued)
Parameter
Symbol
Condition
Output section
Output voltage
Output current setting
section/
Control section
Entire device
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
7. Diagram
V_OH1
V_OH2
V_OL1
V_OL2
I_O+
I_O–
R_O
V_BR
I_OFF
I_ON
I_BR
I_CCS
I_CC
R_B = 390 , I_O = –15 mA
R_B = 750 , V_CC = 1.8 V
I_O = –10 mA
R_B = 390 , I_O = 15 mA
R_B = 750 , V_CC = 1.8 V
I_O = 10 mA
R_B = 390 , V_O = 0.9 V
R_B = 390 , V_O = 0.3 V
—
R_B = 390 
—
BR/CTL pin open or V_CC
R_B = 390 
Min
1.0
0.8
Value
Typ Max
1.2 —
1.0 —
Unit
V
V
—
0.1 0.2 V
—
0.1 0.2 V
—
–30
30
60
20
30
0.2 0.3
–20 —
—
—
–1.8 —
—
—
—
5.5
–20 mA
—
mA
40
k
0.4 V
0
A
–45 A
–0.1 mA
1
A
9.3 mA
FB pin voltage
Reference input for short circuit
detection comparator
Idle period setting voltage
Sawtooth wave output
Soft start setting voltage
OUT pin waveforms
SCP pin waveforms
ON
Power supply control SW
OFF
Soft start
tS
Output
short
circuit
t PE
Output short circuit
Short circuit
detection
Document Number: 002-08716 Rev. *A
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