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参数资料
| 型号： | LM2670TADJEP |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 5.4 A SWITCHING REGULATOR, 280 kHz SWITCHING FREQ-MAX, PZFM7 |
| 封装： | PLASTIC, TO-220, 7 PIN |
| 文件页数： | 24/25页 |
| 文件大小： | 465K |
| 代理商： | LM2670TADJEP |
Typical Performance Characteristics (Continued)
Continuous Mode Switching Waveforms
V
IN = 20V, VOUT = 5V, ILOAD =3A
L=33H, C
OUT = 200 F, COUTESR=26m
Discontinuous Mode Switching Waveforms
V
IN = 20V, VOUT = 5V, ILOAD = 500 mA
L=10H, C
OUT = 400 F, COUTESR=13m
20097717
A: VSW Pin Voltage, 10 V/div.
B: Inductor Current, 1 A/div
C: Output Ripple Voltage, 20 mV/div AC-Coupled
Horizontal Time Base: 1 s/div
20097718
A: VSW Pin Voltage, 10 V/div.
B: Inductor Current, 1 A/div
C: Output Ripple Voltage, 20 mV/div AC-Coupled
Horizontal Time Base: 1 s//iv
Load Transient Response for Continuous Mode
V
IN = 20V, VOUT =5V
L=33H, C
OUT = 200 F, COUTESR=26m
Load Transient Response for Discontinuous Mode
V
IN = 20V, VOUT = 5V,
L=10H, C
OUT = 400 F, COUTESR=13m
20097719
A: Output Voltage, 100 mV//div, AC-Coupled.
B: Load Current: 500 mA to 3A Load Pulse
Horizontal Time Base: 100 s/div
20097720
A: Output Voltage, 100 mV/div, AC-Coupled.
B: Load Current: 200 mA to 3A Load Pulse
Horizontal Time Base: 200 s/div
LM2670EP
Enhanced
Plastic
www.national.com
8
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