MB3785A Datasheet, PDF (9/29 Pages) Fujitsu Component Limited. – Switching Regulator Controller (4 Channels plus High-Precision, High-Frequency Capabilities)

MB3785A
s ELECTRICAL CHARACTERISTICS
Parameter
Symbol
Conditions
Reference voltage
Rate of changed in output
voltage vs. Temperature
Input stability
Load stability
Sort-circuit output current
Threshold voltage
Hysteresis width
VREF
∆VREF
/VREF
Line
Load
IOS
VtH
VtL
VHYS
IOR = –1 mA
Ta = –30°C to +85°C
VCC = 3.6 V to 18 V
IOR = –0.1 mA to –1 mA
VREF = 2 V
—
—
—
(VCC = +6 V, Ta = +25°C)
Value
Unit
Min. Typ. Max.
2.475 2.500 2.525 V
–2 ±0.2
2
%
–10
–2
–10
–3
–25
–8
— 2.72
— 2.60
80
120
10 mV
10 mV
–3 mA
—
V
—
V
— mV
Reset voltage (VCC)
VR
—
1.5
1.9
—
V
Input threshold voltage
Input bias current
Input voltage range
Input offset voltage
Input bias current
Common mode input
voltage range
Threshold voltage
Input standby voltage
Input latch voltage
Input source current
Oscillation frequency
Frequency stability (VCC)
Vth
—
IIB VI = 0 V
VI
—
VIO
—
IIB VI = 0 V
VICM
—
VtPC
—
VSTB
—
VI
—
2.45 2.50 2.55 V
–200 –100 — nA
–0.2 —
VCC
V
0.58 0.65 0.72 V
–200 –100 — nA
–0.2
— VCC–1.8 V
0.60 0.65 0.70 V
—
50
100 mV
—
50
100 mV
Ilbpc
—
–1.4 –1.0 –0.6 µA
fOSC CT = 300 pF, RT = 6.2 kΩ 450
500
550 kHz
∆f/fdv VCC = 3.6 V to 18 V
—
±1
—
%
Frequency stability (Ta)
∆f/fdT Ta = –30°C to +85°C
–4
—
4
%
(Continued)
9