ISL8036 Ver la hoja de datos (PDF) - Renesas Electronics

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Fabricante

ISL8036

Dual 3A 1MHz/2.5MHz High Efficiency Synchronous Buck Regulator

Renesas Electronics 

ISL8036, ISL8036A

ISL8036 Typical Operating Performance for Dual PWM Operation

Unless otherwise noted, operating conditions are: VOUT1 = 1.8V; VOUT2 = 0.8V; IOUT1 = 0A to 3A; IOUT2 = 0A to 3A, FSW = 1MHz. (Continued)

EN2 2V/DIV

EN1 2V/DIV

VOUT2 0.5V/DIV

VOUT1 1V/DIV

IL2 0.5A/DIV

IL1 2A/DIV

PG2 5V/DIV

FIGURE 16. SOFT-START WITH NO LOAD CHANNEL 2

PG1 5V/DIV

FIGURE 17. SOFT-START AT FULL LOAD CHANNEL 1

EN2 2V/DIV

VOUT2 0.5V/DIV

IL2 2A/DIV

PG2 5V/DIV

FIGURE 18. SOFT-START AT FULL LOAD CHANNEL 2

EN1 5V/DIV

PG1 5V/DIV

VOUT1 0.5V/DIV

IL1 0.5A/DIV

FIGURE 19. SOFT-DISCHARGE SHUTDOWN CHANNEL 1

IL2 0.5A/DIV

EN2 2V/DIV

VOUT2 0.5V/DIV

PG2 5V/DIV

FIGURE 20. SOFT-DISCHARGE SHUTDOWN CHANNEL 2

LX1 2V/DIV

SYNCH 5V/DIV

VOUT1 RIPPLE 20mV/DIV

IL1 1A/DIV

FIGURE 21. STEADY STATE OPERATION CHANNEL 1 AT NO LOAD

WITH FSW = 2.4MHz

FN6853 Rev 3.00

August 17, 2012

Page 12 of 26

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