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參數(shù)資料
| 型號： | LM2678 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | SIMPLE SWITCHER High Efficiency 5A Step-Down Voltage Regulator |
| 中文描述： | 高效率的SIMPLE SWITCHER第5A降壓穩(wěn)壓器 |
| 文件頁數(shù)： | 8/27頁 |
| 文件大?。?/td> | 459K |
| 代理商： | LM2678 |
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Typical Performance Characteristics
(Continued)
Continuous Mode Switching Waveforms
V
= 20V, V
= 5V, I
LOAD
= 5A
L = 10 μH, C
OUT
= 400 μF, C
OUT
Discontinuous Mode Switching Waveforms
V
= 20V, V
OUT
= 5V, I
LOAD
= 500 mA
L = 10 μH, C
OUT
OUT
ESR = 13 m
10088617
A: V
SW
Pin Voltage, 10 V/div.
B: Inductor Current, 2 A/div
C: Output Ripple Voltage, 20 mV/div AC-Coupled
Horizontal Time Base: 1 μs/div
10088618
A: V
SW
Pin Voltage, 10 V/div.
B: Inductor Current, 1 A/div
C: Output Ripple Voltage, 20 mV/div AC-Coupled
Horizontal Time Base: 1 μs//iv
Load Transient Response for Continuous Mode
V
IN
= 20V, V
= 5V
L = 10 μH, C
OUT
= 400 μF, C
OUT
ESR = 13 m
Load Transient Response for Discontinuous Mode
V
IN
= 20V, V
= 5V,
L = 10 μH, C
OUT
= 400 μF, C
OUT
ESR = 13 m
10088619
A: Output Voltage, 100 mV//div, AC-Coupled.
B: Load Current: 500 mA to 5A Load Pulse
Horizontal Time Base: 100 μs/div
10088620
A: Output Voltage, 100 mV/div, AC-Coupled.
B: Load Current: 200 mA to 3A Load Pulse
Horizontal Time Base: 200 μs/div
L
www.national.com
8
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM2679S-12 | SIMPLE SWITCHER 5A Step-Down Voltage Regulator with Adjustable Current Limit |
| LM2679S-3.3 | SIMPLE SWITCHER 5A Step-Down Voltage Regulator with Adjustable Current Limit |
| LM2679S-5.0 | SIMPLE SWITCHER 5A Step-Down Voltage Regulator with Adjustable Current Limit |
| LM2679T-12 | 392 Series Industrial Potentiometer, Conductive Plastic Element, PC Terminals, 0.5 W Power Rating, 250 Ohm Resistance Value |
| LM2679T-3.3 | 392 Series Industrial Potentiometer, Conductive Plastic Element, PC Terminals, 0.5 W Power Rating, 2.5 kOhm Resistance Value |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM2678_05 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:SIMPLE SWITCHER㈢ High Efficiency 5A Step-Down Voltage Regulator |
| LM2678-12 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:SIMPLE SWITCHER High Efficiency 5A Step-Down Voltage Regulator |
| LM2678-3.3 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:SIMPLE SWITCHER High Efficiency 5A Step-Down Voltage Regulator |
| LM2678-5.0 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:SIMPLE SWITCHER High Efficiency 5A Step-Down Voltage Regulator |
| LM2678-ADJ | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:SIMPLE SWITCHER High Efficiency 5A Step-Down Voltage Regulator |
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