參數(shù)資料
型號(hào): LM2672LD-5.0/NOPB
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類(lèi): 穩(wěn)壓器
英文描述: 2.2 A SWITCHING REGULATOR, 275 kHz SWITCHING FREQ-MAX, PDSO16
封裝: LLP-16
文件頁(yè)數(shù): 25/26頁(yè)
文件大?。?/td> 626K
代理商: LM2672LD-5.0/NOPB
Typical Performance Characteristics (Circuit of Figure 2)
Continuous Mode Switching Waveforms
V
IN = 20V, VOUT = 5V, ILOAD = 1A
L = 47
μH, C
OUT = 68 μF, COUTESR = 50 mΩ
1293418
A: V
SW Pin Voltage, 10 V/div.
B: Inductor Current, 0.5 A/div
C: Output Ripple Voltage, 20 mV/div AC-Coupled
Horizontal Time Base: 1
μs/div
Discontinuous Mode Switching Waveforms
V
IN = 20V, VOUT = 5V, ILOAD = 300 mA
L = 15
μH, C
OUT = 68 μF (2×), COUTESR = 25 mΩ
1293419
A: V
SW Pin Voltage, 10 V/div.
B: Inductor Current, 0.5 A/div
C: Output Ripple Voltage, 20 mV/div AC-Coupled
Horizontal Time Base: 1
μs/div
Load Transient Response for Continuous Mode
V
IN = 20V, VOUT = 5V, ILOAD = 1A
L = 47
μH, C
OUT = 68 μF, COUTESR = 50 mΩ
1293420
A: Output Voltage, 100 mV/div, AC-Coupled
B: Load Current: 200 mA to 1A Load Pulse
Horizontal Time Base: 50
μs/div
Load Transient Response for Discontinuous Mode
V
IN = 20V, VOUT = 5V,
L = 47
μH, C
OUT = 68 μF, COUTESR = 50 mΩ
1293421
A: Output Voltage, 100 mV/div, AC-Coupled
B: Load Current: 100 mA to 300 mA Load Pulse
Horizontal Time Base: 200
μs/div
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