参数资料
型号: LM2594HV-12MWC
厂商: NATIONAL SEMICONDUCTOR CORP
元件分类: 稳压器
英文描述: 1.4 A SWITCHING REGULATOR, 173 kHz SWITCHING FREQ-MAX, UUC
封装: WAFER
文件页数: 31/33页
文件大小: 837K
代理商: LM2594HV-12MWC
Typical Performance Characteristics
Continuous Mode Switching Waveforms
V
IN = 20V, VOUT =5V, ILOAD = 400 mA
L = 100 H, C
OUT = 120 F, COUT ESR = 140 m
DS012439-17
A: Output Pin Voltage, 10V/div.
B: Inductor Current 0.2A/div.
C: Output Ripple Voltage, 20 mV/div.
Horizontal Time Base: 2 s/div.
Discontinuous Mode Switching Waveforms
V
IN = 20V, VOUT =5V, ILOAD = 200 mA
L = 33 H, C
OUT = 220 F, COUT ESR=60 m
DS012439-18
A: Output Pin Voltage, 10V/div.
B: Inductor Current 0.2A/div.
C: Output Ripple Voltage, 20 mV/div.
Horizontal Time Base: 2 s/div.
Load Transient Response for Continuous Mode
V
IN = 20V, VOUT =5V, ILOAD = 200 mA to 500 mA
L = 100 H, C
OUT = 120 F, COUT ESR = 140 m
DS012439-19
A: Output Voltage, 50 mV/div. (AC)
B: 200 mA to 500 mA Load Pulse
Horizontal Time Base: 50 s/div.
Load Transient Response for Discontinuous Mode
V
IN = 20V, VOUT =5V, ILOAD = 100 mA to 200 mA
L = 33 H, C
OUT = 220 F, COUT ESR=60 m
DS012439-20
A: Output Voltage, 50 mV/div. (AC)
B: 100 mA to 200 mA Load Pulse
Horizontal Time Base: 200 s/div.
LM2594/LM2594HV
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