參數(shù)資料
型號: BA18BC0WFP
元件分類: 固定正電壓單路輸出LDO穩(wěn)壓器
英文描述: 1.8 V FIXED POSITIVE LDO REGULATOR, 0.5 V DROPOUT, PSSO4
封裝: ROHS COMPLIANT, TO-252, 5 PIN
文件頁數(shù): 4/10頁
文件大小: 436K
代理商: BA18BC0WFP
BA□□BC0 Series,BA□□BC0W Series,BA00BC0W Series
Technical Note
3/8
www.rohm.com
2009.04 - Rev.A
2009 ROHM Co., Ltd. All rights reserved.
1
1.5
2
2.5
3
3.5
4
-4 0 - 30 - 20 -1 0 0
10 203 0 4 0506 0 7 080 90 10 0
TEMPERATURE : Ta [℃]
OU
TP
U
T
V
O
L
TA
G
E
V
OU
T
[
V
]
Electrical Characteristics Curves (Unless otherwise specified, Ta = 25°C, Vcc = 8 V, VCTL = 2 V, IO = 0 mA)
0
0.5
1
1.5
2
2.5
02
46
8
10
12
14
16
18
SUPPLY VOLTAGE : Vcc [V]
C
IR
C
U
IT
U
R
E
N
T
Ic
c
[m
A
]
Fig.1 Circuit Current
0
1
2
3
4
5
6
0
2
4
6
8
10
12
14
16
18
SUPPLY VOLTAGE : Vcc [V]
OU
TPU
T
VOLTAGE
: V
OU
T
[V
]
Fig.3 Input Stability(Io = 1 A)
0
1
2
3
4
5
6
0 0.1 0.2 0 .3 0 .4 0.5 0 .6 0 .7 0.8 0.9 1
1 .1 1.2 1 .3 1 .4 1.5 1.6 1 .7
OUTPUT CURRENT : IOUT [A]
OU
TP
U
T
V
O
L
TA
G
E
V
OUT
[
V]
Fig.4 Load Stability
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
1.1 1.2 1.3
OUTPUT CURRENT : I OUT [mA]
D
R
OP
OU
T
V
O
L
T
A
G
E
Δ
V
d
[m
V
]
Fig.5 I/O Voltage Difference
0
10
20
30
40
50
60
70
0
200
400
600
800
1000
FREQUENCY : f [Hz]
R
IP
P
L
E
RE
J
E
C
T
IO
N
R.
R
.
[d
B
]
Fig.6 Ripple Rejection
Fig.7 Output Voltage vs Temperature
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
- 40 -30 - 20 -10 0
1 020
3 040
5 0
6 07 0
8 09 010 0
TEMPERATURE: Ta [℃]
C
IRC
U
IT
U
R
E
N
T
Icc
[m
A
]
Fig.8 Circuit Current Temperature
0
10
20
30
40
50
60
70
0
100
200
300 400
500
600 700
800
900 1000
OUTPUT CURRENT : IOUT [A]
C
IR
C
U
IT
U
R
E
N
T
Ic
c
[m
A
]
Fig.9 Circuit Current Classified by Load
0
1
2
3
4
5
6
024
68
10
CONTROL VOLTAGE : VCTL [V]
OU
TP
U
T
V
O
L
TA
G
E
V
OUT
[
V]
Fig.10 CTL Voltage vs Output Voltage
0
0.1
0.2
0.3
0.4
0.5
0.6
02
46
8
10
12
14
16
18
CONTROL VOLTAGE : VCTL [V]
CO
N
T
R
O
L
U
R
E
N
T
I
CT
L[
μ
A
]
Fig.11 CTL Voltage vs CTL Current
Fig.12 Thermal Shutdown Circuit
0
1
2
3
4
5
6
0
2
4
6
8
10
12
14
16
18
SUPPLY VOLTAGE : Vcc [V]
OU
TP
U
T
V
O
L
TA
G
E
V
OUT
[
mA]
[BA50BC0WFP]
0
1
2
3
4
5
6
7
8
100
120
140
160
180
200
TEMPERATURE : Ta [℃]
O
U
TP
U
T
V
O
L
TA
G
E
V
OUT
[
V]
[BA50BC0WFP]
Fig.2 Input Stability(Io=0mA)
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