LM2596 データシートの表示（PDF） - Estek Electronics Co. Ltd

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LM2596

3A Step-Down Voltage Regulator

Estek Electronics Co. Ltd 

LM2596

TYPICAL PERFORMANCE CHARACTERISTICS

Continuous Mode Switching Waveforms

VIN=20V, VOUT=5V, ILOAD=2A

L=32H, COUT=220F, COUTESR=50m

20V

A 10V

0V

2A

B 1A

0A

Discontinuous Mode Switching Waveforms

VIN=20V, VOUT=5V, ILOAD=500mA L=10H,

COUT=330F, COUTESR=45m

20V

A 10V

0V

1A

B

0A

C AC/

div

C AC/

div

A: Output Pin Voltage,10V/ div

B: Inductor Current 1A/ div

C: Output Ri pple Voltage,50mV/ div

Horizontal Time Base: 2s/ div

A: Output Pin Voltage,10V/ div

B: Inductor Current 1A/ div

C: Output Ri pple Voltage,100mV/ div

Horizontal Time Base: 2s/ div

Load Transient Response for Continuous Mode

VIN=20V, VOUT=5V, ILOAD=500mA to 2A

L=32H, COUT=220F, COUTESR=50m

Load Transient Response for Discontinuous Mode

VIN=20V, VOUT=5V, ILOAD=500mA to 2A

L=10H, COUT=330F, COUTESR=45m

A AC

div

A AC

div

B 1A

0A

A: Output Voltage, 100mV/ div.(AC)

B: 500mA to 2A Load Pulse

Horizontal Time Base: 100 / div

s

B 1A

0A

A: Output Voltage,100mV/ div. (AC)

B: 500mA to 2A Load Pulse

Horizontal Time Base: 200s/ div

BEIJING ESTEK ELECTRONICS CO.,LTD

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