MB3778 Datasheet, PDF (6/29 Pages) Fujitsu Component Limited. – Switching Regulator Controller

MB3778
s ABSOLUTE MAXIMUM RATINGS (See NOTE)
Parameter
Symbol
Condition
Power Supply Voltage
Error Amp. Input Voltage
Control Input Voltage
Collector Output Voltage
Collector Output Current
Power Dissipation
Operating Temperature
Storage Temperature
VCC
VIN
VCTL
VOUT
IOUT
PD
Top
Tstg





Ta ≤ +25 °C (SOP)
Ta ≤ +25 °C (SSOP)
Ta ≤ +25 °C (DIP)


*1: The packages are mounted on the epoxy board (4 cm × 4 cm)
*2: The packages are mounted on the epoxy board (10 cm × 10 cm)
Rating
Min.
Max.

20
−0.3
+10
−0.3
+20

20

75

620*¹

444*²

1000
−30
+85
−55
+125
(Ta = 25 °C)
Unit
V
V
V
V
mA
mW
mW
mW
°C
°C
WARNING: Semiconductor devices can be permanently damaged by application of stress (voltage, current,
temperature, etc.) in excess of absolute maximum ratings. Do not exceed these ratings.
s RECOMMENDED OPERATING CONDITIONS
Parameter
Symbol
Min.
Value
Typ.
Unit
Max.
Power Supply Voltage
VCC
3.6
6.0
18
V
Error Amp. Input Voltage
VIN
1.05

1.45
V
Control Input Voltage
VCTL
0

18
V
Collector Output Voltage
VOUT


18
V
Collector Output Current
IOUT
0.3

50
mA
Timing Capacitor
CT
150

15000
pF
Timing Resistor
RT
5.1

100
kΩ
Oscillator Frequency
fOSC
1

500
kHz
Operating Temperature
Top
−30
25
85
°C
WARNING: The recommended operating conditions are required in order to ensure the normal operation of the
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.
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