参数资料
型号: BA178M18FP-E2
厂商: Rohm Semiconductor
文件页数: 8/13页
文件大小: 0K
描述: IC REG LDO 18V .5A TO252-3
标准包装: 2,000
稳压器拓扑结构: 正,固定式
输出电压: 18V
输入电压: 21 V ~ 33 V
电压 - 压降(标准): 2V @ 500mA
稳压器数量: 1
电流 - 输出: 500mA(最小值)
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: TO-252-3,DPak(2 引线+接片),SC-63
供应商设备封装: TO-252-3
包装: 带卷 (TR)
BA78 □□ Series,BA78M □□ Series
● BA78 □□ Characteristics data (Ta=25 ℃ , Vin=10V(05), 14V(08), 23V(15)
unless otherwise specified)
Technical Note
20
20
20
15
Ta=25 ℃
Io=0mA
BA7815
15
Ta=25 ℃
Io=500mA
BA7815
15
Ta=25 ℃
Io=1A
BA7815
10
BA7808
10
BA7808
10
BA7808
5
BA7805
5
BA7805
5
BA7805
0
0
0
0
5
10
15
20
25
30
0
5
10
15
20
25
30
0
5
10
15
20
25
30
Vin [V]
Fig.13 Line Regulation (Io=0mA)
Vin [V]
Fig.14 Line Regulation (Io=500mA)
Vin [V]
Fig15. Line Regulation (Io=1A)
6
5
Ta=25 ℃
BA7805
Io=0mA
20
15
Ta=25 ℃
BA7815
2.0
1.5
Ta=25 ℃
4
BA7805
3
2
BA7808
BA7815
10
5
BA7808
BA7805
1.0
0.5
BA7808
BA7815
1
0
0
5
10
15
20
25
30
0
0.0
0.5
1.0
1.5
2.0
0.0
0
5
10
15
20
25
30
2.0
Ta=25 ℃
Vin [V]
Fig.16 Vin - Ib
2
Io [A]
Fig.17 Load Regulation
Ta=25 ℃
100
Vin [V]
Fig.18 Peak Output Current
BA7805
1.5
BA7805
BA7808
1.5
BA7805
BA7808
BA7815
80
60
1.0
BA7815
1
BA7808
BA7815
40
0.5
0.0
0.5
0
20 Ta=25 ℃
Io=100mA
0 0
100
1000 10000
100000 1000000
0
0.2
0.4
0.6
0.8
1
0
5
10
15
20
25
30
10 10
100
1K 10K
100K 1M
1.5
Io [A]
Fig.19 Dropout Voltage
Vin [V]
Fig.20 Short – Circuit Output Current
6
6
Frequency [Hz]
Fig.21 Ripple Rejection Ratio
1.0
Io=5mA
5
Io=0mA
Io=0mA
BA7815
5
Ta=25 ℃
BA7815
BA7815
BA7808
0.5
0.0
BA7815
4
3
BA7808
4
3
BA7808
-0.5
2
BA7805
2
BA7805
-1.0
-1.5
BA7805
BA7808
1
0
BA7805
1
0
-40
-20
0
20
40
60
80
100
-40
-20
0
20
40
60
80
100
0
0.2
0.4
0.6
0.8
1
Ta [ ℃ ]
Fig.22 Ta - Vo
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? 2012 ROHM Co., Ltd. All rights reserved.
Ta [ ℃ ]
Fig.23 Ta - Ib
8/12
Io [A]
Fig.24 Io - Ib
2012.03 - Rev.C
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