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| 型号： | LMX2575MX-ADJ |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 3.2 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PDSO24 |
| 封装： | SMT-24 |
| 文件页数： | 30/30页 |
| 文件大小： | 676K |
| 代理商： | LMX2575MX-ADJ |
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Typical Performance Characteristics (Circuit of Figure 2) (Continued)
Test Circuit and Layout Guidelines
As in any switching regulator, layout is very important. Rap-
idly switching currents associated with wiring inductance
generate voltage transients which can cause problems. For
minimal inductance and ground loops, the length of the leads
indicated by heavy lines should be kept as short as possible.
Single-point grounding (as indicated) or ground plane con-
struction should be used for best results. When using the Ad-
justable version, physically locate the programming resistors
near the regulator, to keep the sensitive feedback wiring
short.
Feedback Pin Current
DS011475-5
Maximum Power Dissipation
(TO-263) (See (Note 12))
DS011475-28
Switching Waveforms
DS011475-6
VOUT = 5V
A: Output Pin Voltage, 10V/div
B: Output Pin Current, 1A/div
C: Inductor Current, 0.5A/div
D: Output Ripple Voltage, 20 mV/div,
AC-Coupled
Horizontal Time Base: 5 s/div
Load Transient Response
DS011475-7
www.national.com
9
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LMX2581 | 制造商:TI 制造商全称:Texas Instruments 功能描述:LMX2581 Wideband Frequency Synthesizer with Integrated VCO |
| LMX2581EVAL/NOPB | 功能描述:时钟和定时器开发工具 LMX2581 EVAL MOD RoHS:否 制造商:Texas Instruments 产品:Evaluation Modules 类型:Clock Conditioners 工具用于评估:LMK04100B 频率:122.8 MHz 工作电源电压:3.3 V |
| LMX2581EVM | 功能描述:LMX2581 - Timing, Frequency Synthesizer Evaluation Board 制造商:texas instruments 系列:- 零件状态:有效 主要用途:计时，频率合成器 嵌入式:- 使用的 IC/零件:LMX2581 主要属性:带 VCO 的单路分数-N PLL 辅助属性:- 所含物品:板 标准包装:1 |
| LMX2581SQ | 制造商:TI 制造商全称:Texas Instruments 功能描述:LMX2581 Wideband Frequency Synthesizer with Integrated VCO |
| LMX2581SQ/NOPB | 制造商:Texas Instruments 功能描述:IC FREQ SYNTHESIZER VCO 32WQFN 制造商:Texas Instruments 功能描述:CLOCK GENERATION/OTHER IC |
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