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参数资料
| 型号： | LM2677LD-12 |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 8.75 A SWITCHING REGULATOR, 280 kHz SWITCHING FREQ-MAX, PDSO14 |
| 封装： | LLP-14 |
| 文件页数： | 25/26页 |
| 文件大小： | 449K |
| 代理商： | LM2677LD-12 |
Typical Performance Characteristics
Continuous Mode Switching Waveforms
V
IN = 20V, VOUT = 5V, ILOAD =5A
L = 10 H, C
OUT = 400 F, COUTESR=13 m
Discontinuous Mode Switching Waveforms
V
IN = 20V, VOUT = 5V, ILOAD = 500 mA
L = 10 H, C
OUT = 400 F, COUTESR=13 m
10130117
A: VSW Pin Voltage, 10 V/div.
B: Inductor Current, 2 A/div
C: Output Ripple Voltage, 20 mV/div AC-Coupled
Horizontal Time Base: 1 s/div
10130118
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 = 10 H, C
OUT = 400 F, COUTESR=13 m
Load Transient Response for Discontinuous Mode
V
IN = 20V, VOUT = 5V,
L = 10 H, C
OUT = 400 F, COUTESR=13 m
10130119
A: Output Voltage, 100 mV//div, AC-Coupled.
B: Load Current: 500 mA to 5A Load Pulse
Horizontal Time Base: 100 s/div
10130120
A: Output Voltage, 100 mV/div, AC-Coupled.
B: Load Current: 200 mA to 5A Load Pulse
Horizontal Time Base: 200 s/div
LM2677
www.national.com
8
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| LM2677SDX-3.3/NOPB | 8.75 A SWITCHING REGULATOR, 280 kHz SWITCHING FREQ-MAX, DSO14 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LM2677LD-5.0 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| LM2677LD-ADJ | 制造商:Rochester Electronics LLC 功能描述:5A STEP DOWN SIMP SWITCH 260KH - Bulk 制造商:Texas Instruments 功能描述: |
| LM2677S-12 | 功能描述:直流/直流开关转换器 RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| LM2677S-12/NOPB | 功能描述:直流/直流开关转换器 RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| LM2677S-12/NOPB | 制造商:Texas Instruments 功能描述:DC/DC Converter IC |
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