Datasheet
500mA Variable / Fixed Output
LDO Regulators
BDxxIA5WEFJ
●General
Description
BDxxIA5WEFJ series devices are LDO regulators with an output current of 0.5A. The output accuracy is ±1% of the output
voltage. Both fixed and variable output voltage devices are available. The output voltage of the variable output voltage
device can be varied from 0.8 to 4.5V using external resistors. Various fixed output voltage devices that do not use external
resistors are also available. It can be used for a wide range of digital appliance applications. It has a small package type:
HTSOP-J8 (4.90mm x 6.00mm x 1.00mm). These devices have built in over current protection to protect the device when
output is shorted, 0µA shutdown mode and thermal shutdown circuit to protect the device during over load conditions.
These LDO regulators are usable with ceramic capacitors that enable a smaller layout and longer life.
●Features
■
+/-1% output voltage accuracy
■
Built-in Over Current Protection circuit (OCP)
■
Built-in Thermal Shut Down circuit (TSD)
■
Zero µA Shutdown mode
●Key
Specifications
Input Power Supply Voltage range:
2.4V to 5.5V
Output voltage range(Variable type):
0.8V to 4.5V
Output voltage(Fixed type):
1.0V/1.2V/1.5V/1.8V/2.5V/3.0V/3.3V
Output current:
0.5A (Max.)
Shutdown current:
0μA (Typ.)
Operating temperature range:
-25℃ to +85℃
●Package
HTSOP-J8
(Typ.)
(Typ.)
(Max.)
4.90mm x 6.00mm x 1.00mm
HTSOP-J8
●Typical
Application Circuit
V
CC
C
IN
EN
GND
FIN
V
O
R
1
FB
R
2
C
IN
,C
OUT
: Ceramic Capacitor
V
CC
C
OUT
C
IN
EN
GND
FIN
V
O
V
O_S
C
OUT
C
IN
,C
OUT
: Ceramic Capacitor
Output voltage variable type
Output voltage fixed type
○Product
structure：Silicon monolithic integrated circuit
○This
product is not designed with protection against radioactive rays.
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© 2012 ROHM Co., Ltd. All rights reserved.
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BDxxIA5WEFJ
●Ordering
Information
Datasheet
B
D
x
x
I
A
5
W
E
F
J
-
E2
Part
Number
Output
voltage
Input
voltage
range
Output
current
Shutdown
mode
Package
Packaging and forming specification
00 : Variable I:7V
10:1.0V
12:1.2V
15:1.5V
18:1.8V
25:2.5V
30:3.0V
33:3.3V
A5:0.5A “W”:included EFJ :HTSOP-J8
E2:Emboss tape reel
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© 2012 ROHM Co., Ltd. All rights reserved.
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BDxxIA5WEFJ
●Block
Diagram
BD00IA5WEFJ(Variable output voltage type)
Datasheet
V
CC
OCP
SOFT
START
V
O
FB
EN
TSD
GND
Fig.1 Block Diagram
●Pin
Configuration
TOP VIEW
V
O
FB
GND
N.C.
V
CC
N.C.
N.C.
EN
●Pin
Description
Pin No.
1
2
3
4
5
6
7
8
Reverse
Pin name
V
O
FB
GND
N.C.
EN
N.C.
N.C.
V
CC
FIN
Pin Function
Output pin
Feedback pin
GND pin
No Connect (Connect to GND or leave OPEN)
Enable pin
No Connect (Connect to GND or leave OPEN)
No Connect (Connect to GND or leave OPEN)
Input pin
Substrate(Connect to GND)
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© 2012 ROHM Co., Ltd. All rights reserved.
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BDxxIA5WEFJ
●Block
Diagram
BDxxIA5WEFJ(Fixed output voltage type)
Datasheet
V
CC
OCP
SOFT
START
V
O
EN
TSD
V
O_S
GND
Fig.2 Block Diagram
●Pin
Configuration
TOP VIEW
V
O
V
O_S
GND
N.C.
V
CC
N.C.
N.C.
EN
●Pin
Description
Pin No.
1
2
3
4
5
6
7
8
Reverse
Pin name
V
O
V
O_S
GND
N.C.
EN
N.C.
N.C.
V
CC
FIN
Pin Function
Output pin
Output voltage monitor pin
GND pin
No Connect (Connect to GND or leave OPEN)
Enable pin
No Connect (Connect to GND or leave OPEN)
No Connect (Connect to GND or leave OPEN)
Input pin
Substrate(Connect to GND)
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BDxxIA5WEFJ
●Absolute
Maximum Ratings
(Ta=25℃)
Parameter
Power supply voltage
EN voltage
Power dissipation
HTSOP-J8
Operating Temperature Range
Storage Temperature Range
Junction Temperature
*1
*2
Datasheet
Symbol
V
CC
V
EN
Pd
*2
Ratings
7.0
7.0
2110
*2
*1
Unit
V
V
mW
℃
℃
℃
Topr
Tstg
Tjmax
-25 to +85
-55 to +150
+150
Not to exceed Pd
Reduced by 16.9mW/℃ for each increase in Ta of 1℃ over 25℃. (when mounted on a board 70mm×70mm×1.6mm glass-epoxy board, two layer)
●
Parameter
Recommended Operating Ratings
(Ta=25℃)
Symbol
V
CC
V
EN
V
O
I
O
Ratings
Min.
2.4
0.0
0.8
0.0
Max.
5.5
5.5
4.5
0.5
Unit
V
V
V
A
Input power supply voltage
EN voltage
Output voltage setting range
Output current
●
Electrical Characteristics
(Unless otherwise noted, Ta=25℃, EN=3V, V
CC
=3.3V, R
1
=16kΩ, R
2
=7.5kΩ)
Limits
Parameter
Symbol
Unit
Conditions
Min.
Typ.
Max.
I
SD
I
CC
Reg.I
Reg I
O
V
CO1
V
CO2
V
CO3
V
CO4
V
FB
V
O
V
EN _Low
V
EN _High
I
EN
-
-
-1
-1.5
-
-
-
-
0.792
Vo×0.99
0
2.4
1
0
250
-
-
0.1
0.2
0.3
0.4
0.800
Vo
-
-
3
5
500
1
1.5
0.15
0.30
0.45
0.60
0.808
Vo×1.01
0.8
5.5
9
µA
µA
%
%
V
V
V
V
V
V
V
V
µA
V
CC
=( V
O
+0.6V )→5.5V
I
O
=0→0.5A
V
CC
=3.3V, I
O
=125mA
V
CC
=3.3V, I
O
=250mA
V
CC
=3.3V, I
O
=375mA
V
CC
=3.3V, I
O
=500mA
I
O
=0A
I
O
=0A
V
EN
=0V, OFF mode
Circuit current at shutdown mode
Bias current
Line regulation
Load regulation
Minimum dropout voltage1
Minimum dropout voltage2
Minimum dropout voltage3
Minimum dropout voltage4
Output reference voltage(Variable type)
Output voltage(Fixed type)
EN Low voltage
EN High voltage
EN Bias current
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© 2012 ROHM Co., Ltd. All rights reserved.
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