參數(shù)資料
型號(hào)： LM2673S-12
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 穩(wěn)壓器
英文描述： SIMPLE SWITCHER 3A Step-Down Voltage Regulator with Adjustable Current Limit
中文描述： 5.4 A SWITCHING REGULATOR, 280 kHz SWITCHING FREQ-MAX, PSSO7
封裝： TO-263, 7 PIN
文件頁(yè)數(shù)： 7/26頁(yè)
文件大?。?/td> 451K
代理商： LM2673S-12
Typical Performance Characteristics
(Continued)
Switching Frequency
Feedback Pin Bias Current
10091312
10091313
Load Transient Response for Continuous Mode
V
IN
= 20V, V
= 5V
L = 33 μH, C
OUT
= 200 μF, C
OUT
ESR = 26 m
Load Transient Response for Discontinuous Mode
V
IN
= 20V, V
= 5V,
L = 10 μH, C
OUT
= 400 μF, C
OUT
ESR = 13 m
10091317
A: Output Voltage, 100 mV//div, AC-Coupled.
B: Load Current: 500 mA to 3A Load Pulse
Horizontal Time Base: 100 μs/div
10091318
A: Output Voltage, 100 mV/div, AC-Coupled.
B: Load Current: 200 mA to 3A Load Pulse
Horizontal Time Base: 200 μs/div
Continuous Mode Switching Waveforms
V
= 20V, V
= 5V, I
LOAD
= 3A
L = 33 μH, C
OUT
= 200 μF, C
OUT
Discontinuous Mode Switching Waveforms
V
= 20V, V
OUT
= 5V, I
LOAD
= 500 mA
L = 10 μH, C
OUT
OUT
ESR = 13 m
10091315
A: V
SW
Pin Voltage, 10 V/div.
B: Inductor Current, 1 A/div
C: Output Ripple Voltage, 20 mV/div AC-Coupled
Horizontal Time Base: 1 μs/div
10091316
A: V
SW
Pin Voltage, 10 V/div.
B: Inductor Current, 1 A/div
C: Output Ripple Voltage, 20 mV/div AC-Coupled
Horizontal Time Base: 1 μs//iv
L
www.national.com
7
相關(guān)PDF資料
PDF描述
LM2673S-3.3 SIMPLE SWITCHER 3A Step-Down Voltage Regulator with Adjustable Current Limit
LM2673S-5.0 SIMPLE SWITCHER 3A Step-Down Voltage Regulator with Adjustable Current Limit
LM2673S-ADJ SIMPLE SWITCHER 3A Step-Down Voltage Regulator with Adjustable Current Limit
LM2673SD-12 SIMPLE SWITCHER 3A Step-Down Voltage Regulator with Adjustable Current Limit
LM2673SD-3.3 Miniature Switch, High Precision
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM2673S12 制造商:Texas Instruments 功能描述:IC SWITCHING REG 3A 12V SMD 2673
LM2673S-12/NOPB 功能描述:直流/直流開(kāi)關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開(kāi)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
LM2673S-3.3 功能描述:直流/直流開(kāi)關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開(kāi)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
LM2673S-3.3/NOPB 功能描述:直流/直流開(kāi)關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開(kāi)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
LM2673S5.0 制造商:National Semiconductor 功能描述:Conv DC-DC Single Step Down 8V to 40V 8-Pin(7+Tab) TO-263 Rail
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