LM2576HV データシートの表示（PDF） - Unspecified

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LM2576HV

Simple high-efficiency step-down (buck) regulator

Unspecified 



LM2575HV/LM2576HV/HM2676HV

Typical Performance Characteristics (Circuit of Figure 2) (Continued)

MinMimauxmimOupmerPaotiwngerVDolitsasgiepationQuiescent CurreFnetedback Pin CFeuerdrebnact k Voltage

(TO-263)

vs Duty Cycle

vs Duty Cycle

Adjustable Version Only

Adjustable Version Only

JA = 32°C/W

VOUT  1.23V

ILOAD = 500mA

JA = 37°C/W

JUNJAC=T5I0O°CN/WTEMPERATURE (°C)

Adjustable Version Only

VIN = 7V

VIN = 40V

ILOAD = 500mA

DUTY CYCLE (%)

Adjustable Version Only

ILOAD = 500mA

VIN = 40V

VIN = 7V

DUTY CYCLE (%)

JA = 73°C/W

AMBIENT TEMPERATURE (°C)

Typical Performance Characteristics (Circuit of Figure 2) (Continued)

JUNCTION TEMPERATURE (°C)

Switching Waveforms

Load Transient Response

A

Output

B

Voltage

Change

C

D

5 s/div

Load

Current

100 s/div

VOUT =15V

A: Output Pin Voltage, 50V/div

B: Output Pin Current, 2A/div

C: Inductor Current, 2A/div

D: Output Ripple Voltage, 50mV/div,

AC-Coupled

Horizontal Time Base: 5s/div

9

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