MAX1515 Ver la hoja de datos (PDF) - Maxim Integrated

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MAX1515

Low-Voltage, Internal Switch, Step-Down/DDR Regulator

Maxim Integrated 

Low-Voltage, Internal Switch,

Step-Down/DDR Regulator

Typical Operating Characteristics (continued)

(MAX1515 Circuit of Figure 1, VIN = 2.5V, VDD = VCC = SHDN = MODE = 3.3V, TA = +25°C, unless otherwise noted.)

STARTUP AND SHUTDOWN WAVEFORM

(LIGHT LOAD)

MAX1515 toc13

3.3V

0

A

0

B

0

C

1A

0

D

1.25V

0

E

SKIP = GND, RLOAD = 100Ω

A: PGOOD, 5V/div

B: SS, 2V/div

C: SHDN, 5V/div

1ms/div

D: INDUCTOR CURRENT, 1A/div

E: OUTPUT VOLTAGE, 1V/div

2.5V

0

0

2A

0

2A

1.25V

DDR-MODE LOAD TRANSIENT

MAX1515 toc14

A

B

C

D

A: LX, 2V/div

B: LOAD CONTROL,

5V/div

SKIP = GND

20μs/div

C: INDUCTOR CURRENT, 2A/div

D: OUTPUT VOLTAGE, 50mV/div

2.5V

0

0

2A

0

-2A

1.25V

DDR-MODE LOAD TRANSIENT

MAX1515 toc15

A

B

C

D

A: LX, 2V/div

B: LOAD CONTROL,

5V/div

SKIP = GND

20μs/div

C: INDUCTOR CURRENT, 2A/div

D: OUTPUT VOLTAGE, 50mV/div

2.5V

0

0

2A

0

-2A

1.25V

DDR-MODE LOAD TRANSIENT

MAX1515 toc16

A

B

C

D

A: LX, 2V/div

B: LOAD CONTROL,

5V/div

SKIP = GND

20μs/div

C: INDUCTOR CURRENT, 2A/div

D: OUTPUT VOLTAGE, 50mV/div

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