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参数资料
| 型号： | LM2590HV3.3MDC |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 3 A SWITCHING REGULATOR, 173 kHz SWITCHING FREQ-MAX, UUC |
| 封装： | DIE |
| 文件页数： | 22/24页 |
| 文件大小： | 816K |
| 代理商： | LM2590HV3.3MDC |
Typical Performance Characteristics (Circuit of Figure 1) (Continued)
Continuous Mode Switching Waveforms
V
IN = 20V, VOUT = 5V, ILOAD =1A
L = 52 H, C
OUT = 100 F, COUT ESR = 100 m
Discontinuous Mode Switching Waveforms
V
IN = 20V, VOUT = 5V, ILOAD = 250 mA
L = 15 H, C
OUT = 150 F, COUT ESR=90 m
10134720
Horizontal Time Base: 2 s/div.
A: Output Pin Voltage, 10V/div.
B: Inductor Current 0.5A/div.
C: Output Ripple Voltage, 50 mV/div.
10134719
Horizontal Time Base: 2 s/div.
A: Output Pin Voltage, 10V/div.
B: Inductor Current 0.25A/div.
C: Output Ripple Voltage, 100 mV/div.
Load Transient Response for Continuous Mode
V
IN = 20V, VOUT = 5V, ILOAD = 250 mA to 1A
L = 52 H, C
OUT = 100 F, COUT ESR = 100 m
Load Transient Response for Discontinuous Mode
V
IN = 20V, VOUT = 5V, ILOAD = 250 mA to 1A
L = 15 H, C
OUT = 150 F, COUT ESR=90 m
10134721
Horizontal Time Base: 50 s/div.
A: Output Voltage, 100 mV/div. (AC)
B: 250 mA to 1A Load Pulse
10134722
Horizontal Time Base: 200 s/div.
A: Output Voltage, 100 mV/div. (AC)
B: 250 mA to 1A Load Pulse
Connection Diagrams and Order Information
Bent and Staggered Leads, Through Hole Package
7-Lead TO-220 (T)
Surface Mount Package
7-Lead TO-263 (S)
10134750
Order Number LM2590HVT-3.3, LM2590HVT-5.0,
or LM2590HVT-ADJ
See NS Package Number TA07B
10134723
Order Number LM2590HVS-3.3, LM2590HVS-5.0,
or LM2590HVS-ADJ
See NS Package Number TS7B
LM2590HV
www.national.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LM2590HVS-3.3 | 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 |
| LM2590HVS-3.3/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 |
| LM2590HVS-5.0 | 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 |
| LM2590HVS5.0/NOPB | 制造商:Texas Instruments 功能描述: |
| LM2590HVS-5.0/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 |
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