参数资料
型号: BA178M18FP-E2
厂商: Rohm Semiconductor
文件页数: 7/13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
● BA78M □□ Characteristics data(Ta=25 ℃ , Vin=10V(05), 14V(08), 23V(15) unless otherwise specified)
Technical Note
20
20
20
Io=500mA
15
Ta=25 ℃
Io=0mA
BA78M15
15
Ta=25 ℃
Io=350mA
BA78M15
15
Ta=25 ℃
Io=500mA
BA78M15
10
5
0
BA78M08
BA78M05
10
5
0
BA78M08
BA78M05
10
5
0
BA78M08
BA78M05
0
5
10
15
20
25
30
0
5
10
15
20
25
30
0
5
10
15
20
25
30
Vin [V]
Fig.1 Line Regulation (Io=0mA)
Vin [V]
Fig.2 Line Regulation (Io=350mA)
Vin [V]
Fig.3 Line Regulation(Io=500mA)
6
Ta=25 ℃
Io=0mA
20
Ta=25 ℃
2.0
Ta=25 ℃
5
4
BA78M05
BA78M08
15
BA78M15
1.5
BA78M05
BA78M08
BA78M15
3
BA78M15
10
BA78M08
1.0
2
5
BA78M05
0.5
1
0
0
0.0
0
5
10
15
20
25
30
0.0
0.5
1.0
1.5
2.0
0
5
10
15
20
25
30
2.0
Ta=25 ℃
Vin [V]
IN Ib
Fig.4 Vin - Io
1.0
Io [A]
Fig.5 Load Regulation
Ta=25 ℃
100
Vin [V]
Fig.6 Peak Output Current
BA78M05
1.5
1.0
BA78M05
BA78M08
BA78M15
0.8
0.6
BA78M05
BA78M08
BA78M15
80
60
BA78M08
BA78M15
0.5
0.4
40
0.2
20
Ta=25 ℃
Io=100mA
0.0
0.0
0
0
10
100
1K 10K 100K
1M
0
0.1
0.2
0.3
0.4
0.5
0
5
10
15
20
25
30
10
100
1000 10000 100000
1000000
Io [A]
Fig.7 Dropout Voltage
Vin [V]
Fig.8 Short – Circuit Output Current
Frequency [ Hz ]
Frequency [Hz]
Fig.9 Ripple Rejection Ratio
1.5
1.0
Io=5mA
6
5
Io=0mA
BA78M15
6
5
Ta=25 ℃
BA78M15
0.5
BA78M05
4
BA78M15
4
BA78M08
BA78M08
0.0
3
3
BA78M05
-0.5
BA78M15
2
BA78M05
2
BA78M08
BA78M05
-1.0
-1.5
1
0
1
0
-40
-20
0
20 40
Ta [ ℃ ]
60
80
100
-40
-20
0
20 40
Ta[ ℃ ]
60
80
100
0
0.1
0.2
Io [A]
0.3
0.4
0.5
Fig.10 Ta - Vo
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? 2012 ROHM Co., Ltd. All rights reserved.
Fig.11 Ta - Ib
7/12
Fig.12 Io - Ib
2012.03 - Rev.C
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