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參數資料
型號: LM2598
廠商: National Semiconductor Corporation
英文描述: SIMPLE SWITCHER Power Converter 150 kHz 1A Step-Down Voltage Regulator, with Features
中文描述: SIMPLE SWITCHER系列電源轉換器150千赫1A步降穩壓器的功能,
文件頁數: 8/33頁
文件大小: 847K
代理商: LM2598
Typical Performance Characteristics
(Circuit of Figure 1)
Continuous Mode Switching Waveforms
V
IN
= 20V, V
OUT
= 5V, I
LOAD
= 1A
L = 68 μH, C
OUT
= 120 μF, C
OUT
ESR = 100 m
DS012593-18
A: Output Pin Voltage, 10V/div.
B: Inductor Current 0.5A/div.
C: Output Ripple Voltage, 50 mV/div.
Horizontal Time Base: 2 μs/div.
Discontinuous Mode Switching Waveforms
V
IN
= 20V, V
OUT
= 5V, I
LOAD
= 600 mA
L = 22 μH, C
OUT
= 220 μF, C
OUT
ESR = 50 m
DS012593-19
A: Output Pin Voltage, 10V/div.
B: Inductor Current 0.5A/div.
C: Output Ripple Voltage, 50 mV/div.
Horizontal Time Base: 2 μs/div.
Load Transient Response for Continuous Mode
V
= 20V, V
OUT
= 5V, I
= 250 mA to 750 mA
L = 68 μH, C
OUT
= 120 μF, C
OUT
ESR = 100 m
DS012593-20
A: Output Voltage, 100 mV/div. (AC)
B: 250 mA to 750 mA Load Pulse
Horizontal Time Base: 100 μs/div.
Load Transient Response for Discontinuous Mode
V
= 20V, V
OUT
= 5V, I
= 250 mA to 750 mA
L = 22 μH, C
OUT
= 220 μF, C
OUT
ESR = 50 m
DS012593-21
A: Output Voltage, 100 mV/div. (AC)
B: 250 mA to 750 mA Load Pulse
Horizontal Time Base: 200 μs/div.
L
www.national.com
8
相關PDF資料
PDF描述
LM2598S-5.0 SIMPLE SWITCHER Power Converter 150 kHz 1A Step-Down Voltage Regulator, with Features
LM2598S-12 SIMPLE SWITCHER Power Converter 150 kHz 1A Step-Down Voltage Regulator, with Features
LM2598S-3.3 SIMPLE SWITCHER Power Converter 150 kHz 1A Step-Down Voltage Regulator, with Features
LM2598S-ADJ SIMPLE SWITCHER Power Converter 150 kHz 1A Step-Down Voltage Regulator, with Features
LM2599S-12 SIMPLE SWITCHER Power Converter 150 kHz 3A Step-Down Voltage Regulator, with Features
相關代理商/技術參數
參數描述
LM2598S-12 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
LM2598S-12/NOPB 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
LM2598S12P+ 制造商:Texas Instruments 功能描述:
LM2598S-12P+ 制造商:Texas Instruments 功能描述:2.6 A SWITCHING REGULATOR, 173 kHz SWITCHING FREQ-MAX, PSSO7
LM2598S-3.3 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
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