BA3257FPHFP Datasheet, PDF (1/2 Pages) Rohm – Dual Low Drop Out Regulator Ceramic Capacitor Available

Dual Low Drop Out Regulator
Ceramic Capacitor Available
BA3257FP/HFP
Description
BA3257FP/HFP is a power supply IC in which
2-output series regulators are incorporated into
a power package (TO252-5/HRP-5). 2-outputs
are 3.3V and a variable output.(Above 1.5V can
be set.) Each current is 1A. Ceramic capacitor
is available for output.
Features
1) 3.3V/1A and Variable(1.25V standard)/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
Dimension (Unit : mm)
BA3257FP
6.5±0.2
5.1^{+−00..21}
2-C0.5
2.3±0.2
0.5±0.1
123
45
0.5
1.27
0.5±0.1
1.0±0.2
TO252-5
BA3257HFP
9.39±0.125
8.82±0.1
(5.59)
1.905±0.1
Applications
HDD/DVD
1 2345
1.2575
4.5°
+
−
5.5°
4.5°
0.27
+
−
00..015
S
Absolute Maximum Ratings (Ta=25˚C)
Parameter
Symbol
Limits
Unit
Power supply voltage
VCC
Power
dissipation
HRP-5
TO252-5
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.
Recommended Operating Conditions (Ta=25˚C)
Parameter
Symbol Min. Typ. Max. Unit
Power supply voltage
VCC
4.75
-
14.0
V
1.72
0.73±0.1
D 0.08 S
HRP-5