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MB39A103 Datasheet, PDF (6/33 Pages) List of Unclassifed Manufacturers – 4-Channel DC/DC Converter IC with Support for Low Voltage
MB39A103
■ ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol
Condition
Rating
Unit
Min
Max
Power supply voltage
VCC VCC, VCCO terminals
⎯
12
V
Output current
IO
OUT1 to OUT4 terminals
⎯
20
mA
Peak output current
IOP
OUT1 to OUT4 terminals
Duty ≤ 5% (t = 1/fOSC×Duty)
⎯
400
mA
TA ≤ +25 °C (TSSOP-30P)
⎯
Power dissipation
PD
TA ≤ +25 °C (BCC-32P)
⎯
1390*
mW
980*
mW
Storage temperature
TSTG
⎯
−55
+125
°C
* : The packages are mounted on the epoxy board (10 cm × 10 cm).
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.
■ RECOMMENDED OPERATING CONDITIONS
Parameter
Symbol
Condition
Min
Start power supply voltage
VCC VCC, VCCO terminals (CH4) 1.7
Power supply voltage
VCC
VCC, VCCO terminal s
(CH1 to CH4)
2.5
Reference voltage output current IREF VREF terminal
−1
Input voltage
−INE1 to −INE4 terminals
0
VINE −INS terminal
0
VDTC DTC1 to DTC4 terminals
0
Control input voltage
VCTL CTL terminal
0
Output current
IO OUT1 to OUT4 terminals
−15
Oscillation frequency
fOSC *
100
Timing capacitor
CT
⎯
39
Timing resistor
RT
⎯
11
Soft-start capacitor
CS CS1 to CS4 terminals
⎯
Short-circuit detection capacitor CSCP
⎯
⎯
Reference voltage output
capacitor
CREF
⎯
⎯
Operating ambient temperature
TA
⎯
−30
Value
Typ
⎯
Unit
Max
11
V
4
11
V
⎯
0
mA
⎯ VCC − 0.9 V
⎯
VREF
V
⎯
VREF
V
⎯
11
V
⎯
+15 mA
500
1500 kHz
100
560 pF
24
130 kΩ
0.1
1.0 µF
0.1
1.0 µF
0.1
1.0 µF
+25
+85
°C
* : See “■ SETTING THE TRIANGULAR OSCILLATION FREQUENCY”.
Note: Pin numbers referred after this part are present on TSSOP-30P PKG.
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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