參數(shù)資料
型號(hào)： LM2593HV
廠商： National Semiconductor Corporation
英文描述： Octal Buffers/Drivers With 3-State Outputs 20-SOIC -40 to 85
中文描述： SIMPLE SWITCHER系列電源轉(zhuǎn)換器150千赫第2A降壓穩(wěn)壓器的功能，
文件頁數(shù)： 8/21頁
文件大?。?/td> 753K
代理商： LM2593HV
Test Circuit and Layout Guidelines
Fixed Output Voltage Versions
10133324
Component Values shown are for V
IN
= 15V,
V
OUT
= 5V, I
LOAD
= 2A.
C
IN
—
470 μF, 50V, Aluminum Electrolytic Nichicon “PM Series”
C
OUT
—
220 μF, 25V Aluminum Electrolytic, Nichicon “PM Series”
D1
—
3.3A, 60V Schottky Rectifier, 31DQ06 (International Rectifier)
L1
—
33 μH, See Inductor Selection Procedure
Adjustable Output Voltage Versions
10133325
Select R
1
to be approximately 1 k
, use a 1% resistor for best stability.
Component Values shown are for V
IN
= 20V,
V
OUT
= 10V, I
LOAD
= 2A.
C
IN
:
— 470 μF, 35V, Aluminum Electrolytic Nichicon “PM Series”
C
OUT
:
— 220 μF, 35V Aluminum Electrolytic, Nichicon “PM Series”
D1 — 3.3A, 60V Schottky Rectifier, 31DQ06 (International Rectifier)
L1 — 47 μH, See Inductor Selection Procedure
R
1
— 1 k
, 1%
R
2
— 7.15k, 1%
C
FF
— 3.3 nF
Typical Values
C
SS
—0.1 μF
C
DELAY
—0.1 μF
R
PULL UP
— 4.7k (use 22k if V
OUT
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 (C
FF
not being able to discharge immediately will
drag feedback pin below ground). Required if V
IN
>
40V
FIGURE 1. Standard Test Circuits and Layout Guides
L
www.national.com
8
相關(guān)PDF資料
PDF描述
LM2594M-12 SIMPLE SWITCHER Power Converter 150 kHz 0.5A Step-Down Voltage Regulator
LM2594M-3.3 Octal Buffers/Drivers With 3-State Outputs 20-SOIC -40 to 85
LM2594M-5.0 SIMPLE SWITCHER Power Converter 150 kHz 0.5A Step-Down Voltage Regulator
LM2594M-ADJ Octal Buffers/Drivers With 3-State Outputs 20-SOIC -40 to 85
LM2594HVN-12 SIMPLE SWITCHER Power Converter 150 kHz 0.5A Step-Down Voltage Regulator
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(píng)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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