FUJITSU SEMICONDUCTOR
DATA SHEET
DS04-27200-6E
ASSP For Power Management Applications
BIPOLAR
Switching Regulator Controller
(Switchable between push-pull and single-end functions)
MB3759
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DESCRIPTION
The MB3759 is a control IC for constant-frequency pulse width modulated switching regulators.
The IC contains most of the functions required for switching regulator control circuits. This reduces both the
component count and assembly work.
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FEATURES
•
•
•
•
•
•
•
Drives a 200 mA load
Can be set to push-pull or single-end operation
Prevents double pulses
Adjustable dead-time
Error amplifier has wide common phase input range
Built in a circuit to prevent misoperation due to low power supply voltage.
Built in an internal 5 V reference voltage with superior voltage reduction characteristics
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PACKAGES
16-pin plastic DIP
16-pin ceramic DIP
16-pin plastic SOP
(DIP-16P-M04)
(DIP-16C-C01)
(FPT-16P-M06)
MB3759
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ABSOLUTE MAXIMUM RATINGS
Rating
Parameter
Power supply voltage
Collector output voltage
Collector output current
Amplifier input voltage
Plastic DIP
Power dissipation
Ceramic DIP
SOP *
Operating temperature
Storage temperature
Top
Tstg
P
D
Symbol
V
CC
V
CE
I
CE
V
I
Condition
Min
—
—
—
—
Ta
≤ +25 °C
Ta
≤ +60 °C
Ta
≤ +25 °C
—
—
—
—
—
—
—
—
—
−30
−55
Max
41
41
250
V
CC
+
0.3
1000
800
620
+85
+125
°C
°C
mW
V
V
mA
V
Unit
*: When mounted on a 4 cm square double-sided epoxy circuit board (1.5 mm thickness)
The ceramic circuit board is 3 cm x 4 cm (0.5 mm thickness)
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.
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RECOMMENDED OPERATING CONDITIONS
Parameter
Power supply voltage
Collector output voltage
Collector output current
Amplifier input voltage
FB sink current
FB source current
Reference section output current
Timing resistor
Timing capacitor
Oscillator frequency
Operating temperature
Symbol
V
CC
V
CE
I
CE
V
IN
I
SINK
I
SOURCE
I
REF
R
T
C
T
fosc
Top
Value
Min
7
—
5
−0.3
—
—
—
1.8
470
1
−30
Typ
15
—
—
0 to V
R
—
—
5
30
1000
40
+25
Max
32
40
200
V
CC
−
2
0.3
2
10
500
10
6
300
+85
Unit
V
V
mA
V
mA
mA
mA
kΩ
pF
kHz
°C
Note: Values are for standard derating conditions. Give consideration to the ambient temperature and power con-
sumption if using a high supply voltage.
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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