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ROHM Semiconductor |
Dual Low Drop Out Regulator
Ceramic Capacitor Available
BA3258FP/HFP
Description
Dimension (Unit : mm)
BA3258FP
6.5±0.2
5.1+−00..21
2-C0.5
2.3±0.2
0.5±0.1
Features
1) 3.3V/1A and 1.5V/1A
2) Output ceramic capacitor available
3) Output voltage accuracy :+/-2%
4) Built-in over-current and thermal protection circuit
5) TO252-5 package and HRP-5 package
123
45
0.5 1.27
0.5±0.1
1.0±0.2
TO252-5
BA3258HFP
9.39±0.125
8.82±0.1
(5.59)
1.905±0.1
Applications
HDD/DVD
1.2575
1
234 5
Absolute Maximum Ratings (Ta=25˚C)
Parameter
Symbol
Limits
Unit
Power supply voltage
Power
dissipation
HRP-5
TO252-5
VCC
Pd
15
2300
1300
V
∗1
∗2 mW
Operating temperature range Topr
0 ~ +85
˚C
Storage temperature range
Tstg
-55 ~ +150
˚C
∗1 Derating : 18.4mW/˚C for operation above Ta=25˚C PCB (70mmx70mm, t=1.6mm) glass epoxy mounting.
∗2 Derating : 10.4mW/˚C for operation above Ta=25˚C PCB (70mmx70mm, t=1.6mm) glass epoxy mounting.
1.72
0.73±0.1
D 0.08 S
HRP-5
4.5°
+
−
54..55°°
0.27
+
−
00..015
S
Recommended Operating Conditions (Ta=25˚C)
Parameter
Symbol Min. Typ.
Power supply voltage
VCC 4.75 -
Max.
14.0
Unit
V
Electrical characteristics (Unless otherwise noted; Ta=25˚C, Vcc=5V)
Parameter
Symbol Min. Typ. Max. Unit
Circuit current
Ib - 3 5 mA
Line regulation 1,2
∆VLINE1,2 -
5 15 mV
Load regulation 1,2
∆VLOAD1,2 -
5 20 mV
[3.3V output]
Output voltage
Vo1 3.234 3.300 3.366 V
Dropout voltage
∆VD1 - 1.1 1.3 V
Output current
Io1 1.0 - - A
[1.5V output]
Output voltage
Vo2 1.470 1.500 1.530 V
Output current
Io2 1.0 - - A
Conditions
Io1=0mA, Io2=0mA
Vcc=4.75 14V, Io=5mA
Io=5mA 1A
Io1=50mA
Io1=1A
Io2=50mA
Application Circuit
Current
Limit
VO1
5
3.3V OUT
CO1
1µF
GND
FIN
Thermal
Shutdown
Current
Limit
VO2
4
2
VO2_S
CO2
1µF
1.5V OUT
VREF
1
BA3258FP/HFP
CIN
3.3µF
VIN
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