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參數(shù)資料
| 型號： | LM2593HV3.3MWC |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 4 A SWITCHING REGULATOR, 173 kHz SWITCHING FREQ-MAX, UUC |
| 封裝： | WAFER |
| 文件頁數(shù)： | 24/25頁 |
| 文件大?。?/td> | 826K |
| 代理商： | LM2593HV3.3MWC |
Test Circuit and Layout Guidelines
Fixed Output Voltage Versions
10133324
Component Values shown are for VIN = 15V,
VOUT = 5V, ILOAD = 2A.
CIN
—
470 F, 50V, Aluminum Electrolytic Nichicon “PM Series”
COUT
—
220 F, 25V Aluminum Electrolytic, Nichicon “PM Series”
D1
—
3.3A, 60V Schottky Rectifier, 31DQ06 (International Rectifier)
L1
—
33 H, See Inductor Selection Procedure
Adjustable Output Voltage Versions
10133325
Select R1 to be approximately 1 k, use a 1% resistor for best stability.
Component Values shown are for VIN = 20V,
VOUT = 10V, ILOAD = 2A.
CIN:
— 470 F, 35V, Aluminum Electrolytic Nichicon “PM Series”
COUT:
— 220 F, 35V Aluminum Electrolytic, Nichicon “PM Series”
D1 — 3.3A, 60V Schottky Rectifier, 31DQ06 (International Rectifier)
L1 — 47 H, See Inductor Selection Procedure
R1 —1 k,1%
R2 — 7.15k, 1%
CFF — 3.3 nF
Typical Values
CSS — 0.1 F
CDELAY — 0.1 F
RPULL UP — 4.7k (use 22k if VOUT is ≥ 45V)
Resistive divider is required to aviod exceeding maximum rating of 45V/3mA on/into flag pin.
Small signal Schottky diode to prevent damage to feedback pin by negative spike when output is shorted (CFF not being able to discharge immediately will
drag feedback pin below ground). Required if VIN > 40V
FIGURE 1. Standard Test Circuits and Layout Guides
LM2593HV
www.national.com
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM2593HVEVAL | 功能描述:電源管理IC開發(fā)工具 EVAL BOARDFOR LM2593 RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| LM2593HVS-3.3 | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
| LM2593HVS-3.3/NOPB | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
| LM2593HVS-3.3/NOPB | 制造商:Texas Instruments 功能描述:DC/DC Converter (DC-DC) / Switching Regu |
| LM2593HVS-5.0 | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
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