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MC34268DT Fiches technique(PDF) 2 Page - ON Semiconductor

No de pièce MC34268DT
Description  SCSI-2 Active Terminator Regulator
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Fabricant  ONSEMI [ON Semiconductor]
Site Internet  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

MC34268DT Fiches technique(HTML) 2 Page - ON Semiconductor

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MC34268
http://onsemi.com
2
MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Power Supply Input Voltage
Vin
15
V
Power Dissipation and Thermal Characteristics
DT Suffix, Plastic Package, Case 369A
TA = 25°C, Derate Above TA = 25°C
Thermal Resistance, Junction–to–Case
Thermal Resistance, Junction–to–Air
D Suffix, Plastic Package, Case 751
TA = 25°C, Derate Above TA = 25°C
Thermal Resistance, Junction–to–Case
Thermal Resistance, Junction–to–Air
ST Suffix, Plastic Package, Case 318E
TA = 25°C, Derate Above TA = 25°C
Thermal Resistance, Junction–to–Case
Thermal Resistance, Junction–to–Air
PD
R
θJC
R
θJA
PD
R
θJC
R
θJA
PD
R
θJC
R
θJA
Internally Limted
5.0
87
Internally Limited
22
140
Internally Limited
15
245
W
°C/W
°C/W
W
°C/W
°C/W
W
°C/W
°C/W
Operating Junction Temperature Range
TJ
0 to +150
°C
Storage Temperature
Tstg
– 55 to +150
°C
ELECTRICAL CHARACTERISTICS
(Vin = 4.25 V, CO = 10 µF, for typical values TJ = 25°C, for min/max values TJ = 0°C to +125°C, unless otherwise noted.)
Characteristic
Symbol
Min
Typ
Max
Unit
Output Voltage (TJ = 25°C, IO = 0 mA)
Output Voltage, over Line, Load, and Temperature (Vin = 3.9 V to 15 V,
IO = 0 mA to 490 mA)
VO
2.81
2.76
2.85
2.85
2.89
2.93
V
Line Regulation (Vin = 4.25 V to 15 V, IO = 0 mA, TJ = 25°C)
Regline
0.3
%
Load Regulation (IO = 0 mA to 800 mA, TJ = 25°C)
Regload
0.5
%
Dropout Voltage (IO = 490 mA)
Vin –VO
0.95
1.1
V
Ripple Rejection (f = 120 Hz)
RR
55
dB
Maximum Output Current (Vin = 5.0 V)
I(max)
800
mA
Bias Current (Vin = 4.25 V, IO = 0 mA)
IB
5.0 to 3.0
8.0
mA
Minimum Load Current to maintain Regulation (Vin = 15 V)
IL(min)
0
mA
IO, OUTPUT LOAD CURRENT (mA)
Figure 1. Dropout Voltage versus
Output Load Current
1.5
1.3
1.1
0.9
0.7
0.5
0
200
400
600
800
1000
Figure 2. Transient Load Regulation
TJ = 25°C
20 ms/DIV
Vin = 5.0 V
CO = 10 µF
TA = 25°C


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