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參數資料
型號: LM2596S-5.0
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 穩壓器
英文描述: SIMPLE SWITCHER Power Converter 150 kHz 3A Step-Down Voltage Regulator
中文描述: 7.5 A SWITCHING REGULATOR, 173 kHz SWITCHING FREQ-MAX, PSSO5
封裝: TO-263, SMT-5
文件頁數: 8/31頁
文件大小: 736K
代理商: LM2596S-5.0
Typical Performance Characteristics
Continuous Mode Switching Waveforms
V
= 20V, V
= 5V, I
LOAD
= 2A
L = 32 μH, C
OUT
= 220 μF, C
OUT
ESR = 50 m
Discontinuous Mode Switching Waveforms
V
= 20V, V
OUT
= 5V, I
LOAD
= 500 mA
L = 10 μH, C
OUT
OUT
ESR = 45 m
01258317
Horizontal Time Base: 2 μs/div.
A: Output Pin Voltage, 10V/div.
B: Inductor Current 1A/div.
C: Output Ripple Voltage, 50 mV/div.
01258318
Horizontal Time Base: 2 μs/div.
A: Output Pin Voltage, 10V/div.
B: Inductor Current 0.5A/div.
C: Output Ripple Voltage, 100 mV/div.
Load Transient Response for Continuous Mode
V
= 20V, V
OUT
= 5V, I
= 500 mA to 2A
L = 32 μH, C
OUT
= 220 μF, C
OUT
ESR = 50 m
Load Transient Response for Discontinuous Mode
V
= 20V, V
OUT
= 5V, I
= 500 mA to 2A
L = 10 μH, C
OUT
= 330 μF, C
OUT
ESR = 45 m
01258319
Horizontal Time Base: 100 μs/div.
A: Output Voltage, 100 mV/div. (AC)
B: 500 mA to 2A Load Pulse
01258320
Horizontal Time Base: 200 μs/div.
A: Output Voltage, 100 mV/div. (AC)
B: 500 mA to 2A Load Pulse
Test Circuit and Layout Guidelines
Fixed Output Voltage Versions
01258322
C
IN
C
OUT
D1
L1
—470 μF, 50V, Aluminum Electrolytic Nichicon “PL Series”
—220 μF, 25V Aluminum Electrolytic, Nichicon “PL Series”
—5A, 40V Schottky Rectifier, 1N5825
—68 μH, L38
L
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8
相關PDF資料
PDF描述
LM2596S-12 CA-BAYONET
LM2596S-3.3 SIMPLE SWITCHER Power Converter 150 kHz 3A Step-Down Voltage Regulator
LM2596S-ADJ SIMPLE SWITCHER Power Converter 150 kHz 3A Step-Down Voltage Regulator
LM2598T-12 SIMPLE SWITCHER Power Converter 150 kHz 1A Step-Down Voltage Regulator, with Features
LM2598T-3.3 SIMPLE SWITCHER Power Converter 150 kHz 1A Step-Down Voltage Regulator, with Features
相關代理商/技術參數
參數描述
LM2596S50 制造商:Texas Instruments 功能描述:SWITCHING REG 3A 5.0V SMD 2596
LM2596S-ADJ 功能描述:直流/直流開關轉換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT
LM2596S-ADJ NOPB 制造商:Texas Instruments 功能描述:Bulk
LM2596S-ADJ 制造商:Texas Instruments 功能描述:IC SWITCHING REG 3A ADJ SMD 2596
LM2596S-ADJ/HAPB 制造商:Texas Instruments 功能描述:
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