2-output LDO series regulator
BA33C25FP/HFP
Description
BA33C25FP/HFP is a 2-output LDO series regulator IC.
Output current is 1A at maximum and output voltage
accuracy is +/-2%. This IC incorporates over-current
protection and thermal protection circuits.
Dimension (Unit : mm)
BA33C25FP
1.5±0.2
6.5±0.2
+0.2
5.1
−0.1
2-C0.5
2.3±0.2
0.5±0.1
5.5±0.2
1.5
1.2575
1
2
3
4
5
4.5°
0.27
S
+
5.5°
−
4.5°
+
0.1
−
0.05
Applications
0.08±0.05
DVD-ROM, DVD-RW, HDD
1.72
0.73±0.1
D 0 .0 8 S
Absolute Maximum Ratings (Ta=25˚C)
Applied voltage
Power dissipation
Operating temperature range
Storage temperature range
Parameter
Symbol
V
CC
Pd
Topr
Tstg
-40
-55
Limits
18
2300
~
~
+105
+150
∗1
HRP-5
Unit
V
mW
∗1
Derating : 18.4mW/˚C for operation above Ta
≥
25˚C
PCB (70mmx70mm, t=1.6mm) glass epoxy mounting. (Thermal via on the board.)
(Board surface copper foil area: 10.5mmX10.5mm)
(2 layer board (Back copper foil area: 15mmX15mm)
˚C
˚C
Recommended Operating Conditions (Ta=25˚C)
Input supply voltage
3.3V output current
2.5V output voltage
Parameter
Symbol
V
CC
Io1
Io2
Min.
4.1
-
-
Typ.
-
-
-
Max.
16.0
1
1
Unit
V
A
A
1.523±0.15
0.835±0.2
10.54±0.13
8.0±0.13
Features
1) 3.3V/1A, 2.5V/1A
2) Output voltage accuracy: +/-2%
3) PNP output and LDO voltage type
4) Built-in output current limit circuit protects the IC
from destruction by short
5) Built-in temperature protection circuit protects the IC
from thermal destruction by overload state
6) TO252-5 package, HRP-5 package
0.8
0.5
1.27
0.5±0.1
1.0±0.2
TO252-5
BA33C25HFP
9.39±0.125
1.017±0.2
8.82±0.1
(5.59)
1.905±0.1
(7.49)
2.5
1
2
3
4
5
9.5±0.5
Electrical characteristics (
Unless otherwise noted; Ta=25˚C, Vcc=5V)
Parameter
Bias current
<3.3V output>
Output voltage 1
Min. I/O voltage difference 1
Output current capacity 1
Ripple rejection 1
Input stability 1
Load stability 1
Output voltage temperature
coefficient 1
Symbol
Ib
Vo1
∆Vd1
Io1
R.R. 1
Reg.I1
∗
2
Min.
-
3.234
-
1.0
50
-
-
-
-
2.450
1.0
50
-
-
-
Typ.
0.8
3.3
0.25
-
58
5
30
±0.01
300
2.5
-
58
5
30
±0.01
270
Max.
1.5
3.366
0.50
-
-
30
75
-
-
2.550
-
-
30
75
-
-
Unit
mA
V
V
A
dB
mV
mV
mA
V
A
dB
mV
mV
mA
Conditions
Io=0mA, Io2=0mA
Io1=500mA
Io1=500mA, Vcc=3.135V
f=120Hz, ein=1Vrms, Io1=200mA
Vcc=4.1
→
16V, Io1=500mA
Io1=0mA
→
1A
Vcc=16V
Reg.L1
Tcvo1
I
OS
1
Vo2
Io2
R.R. 2
Reg.I2
Reg.L2
Tcvo2
Output short current 1
<2.5V output>
Output voltage 2
% /˚C
Io1=5mA, Tj=0~125
˚C
Io2=500mA
f=120Hz, ein=1Vrms, Io2=200mA
Vcc=4.1
→
16V, Io2=500mA
Io2=0mA
→
1A
Vcc=16V
Output current capacity 2
Ripple rejection 2
Input stability 2
Load stability 2
Output voltage temperature
coefficient 2
∗
2
Output short current 2
-
I
OS
2
∗
This product is not designed for protection against radioactive rays.
∗
2 Design guaranteed (All total inspection is not performed.)
% / ˚C
Io1=5mA, Tj=0~125
˚C
Block Diagram
BA33C25FP/HFP
Reference
Voltage
Current
Limit
Vcc
Vcc
Sat.
Prevention
Vcc
Vcc
Thermal
Shut Down
Current
Limit
Sat.
Prevention
Vcc
N.C.
GND(FIN)
Vo1
Vo2
Appendix
Notes
No technical content pages of this document may be reproduced in any form or transmitted by any
means without prior permission of ROHM CO.,LTD.
The contents described herein are subject to change without notice. The specifications for the
product described in this document are for reference only. Upon actual use, therefore, please request
that specifications to be separately delivered.
Application circuit diagrams and circuit constants contained herein are shown as examples of standard
use and operation. Please pay careful attention to the peripheral conditions when designing circuits
and deciding upon circuit constants in the set.
Any data, including, but not limited to application circuit diagrams information, described herein
are intended only as illustrations of such devices and not as the specifications for such devices. ROHM
CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any
third party's intellectual property rights or other proprietary rights, and further, assumes no liability of
whatsoever nature in the event of any such infringement, or arising from or connected with or related
to the use of such devices.
Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or
otherwise dispose of the same, no express or implied right or license to practice or commercially
exploit any intellectual property rights or other proprietary rights owned or controlled by
ROHM CO., LTD. is granted to any such buyer.
Products listed in this document use silicon as a basic material.
Products listed in this document are no antiradiation design.
The products listed in this document are designed to be used with ordinary electronic equipment or devices
(such as audio visual equipment, office-automation equipment, communications devices, electrical
appliances and electronic toys).
Should you intend to use these products with equipment or devices which require an extremely high level of
reliability and the malfunction of with would directly endanger human life (such as medical instruments,
transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other
safety devices), please be sure to consult with our sales representative in advance.
About Export Control Order in Japan
Products described herein are the objects of controlled goods in Annex 1 (Item 16) of Export Trade Control
Order in Japan.
In case of export from Japan, please confirm if it applies to "objective" criteria or an "informed" (by MITI clause)
on the basis of "catch all controls for Non-Proliferation of Weapons of Mass Destruction.
Appendix1-Rev1.0
Test/Measurement
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