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参数资料
| 型号： | LM78S40CNMDA |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 1.5 A SWITCHING REGULATOR, 100 kHz SWITCHING FREQ-MAX, UUC |
| 封装： | DIE |
| 文件页数： | 11/13页 |
| 文件大小： | 349K |
| 代理商： | LM78S40CNMDA |
Typical Applications (Continued)
Characteristic
Condition
Typical
Value
Output Voltage
I
O = 50 mA
25V
Line Regulation
5.0V
≤ V
I ≤ 15V
4.0 mV
Load Regulation
5.0 mA
≤ I
O
2.0 mV
I
O ≤ 100 mA
Max Output Current
V
O = 23.75V
160 mA
Output Ripple
I
O = 50 mA
30 mV
Efficiency
I
O = 50 mA
79%
Standby Current
I
O = 50 mA
2.6 mA
Characteristic
Condition
Typical
Value
Output Voltage
I
O = 100 mA
15V
Line Regulation
8.0V
≤ V
I ≤ 18V
5.0 mV
Load Regulation
5.0 mA
≤ I
O
3.0 mV
I
O ≤ 150 mA
Max Output Current
V
O = 14.25V
160 mA
Output Ripple
I
O = 100 mA
20 mV
Efficiency
I
O = 100 mA
70%
Standby Current
I
O = 100 mA
2.3 mA
DS010057-4
FIGURE 2. Typical Step-Up Regulator and
Operational Performance (T
A = 25C)
DS010057-5
FIGURE 3. Typical Inverting Regulator and
Operational Performance (T
A = 25C)
7
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