ISL8013A Ver la hoja de datos (PDF) - Renesas Electronics

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Fabricante

ISL8013A

3A Low Quiescent Current 1MHz High Efficiency Synchronous Buck Regulator

Renesas Electronics 

ISL8013A

Typical Operating Performance Unless otherwise noted, operating conditions are: TA = +25°C, VIN = 2.5V to 5.5V, EN = VIN,

SYNCH = 0V, L = 1.5µH, C1 = 2x22µF, C2 = 2x22µF, IOUT = 0A to 3A. (Continued)

1.830

1.830

1.820

1.810

1.800

3A LOAD PWM

0A LOAD PWM

1.820

1.810

1.800

3A LOAD

0A LOAD

1.790

1.790

1.780

1.780

1.770

1.770

1.760

1.760

1.750

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

INPUT VOLTAGE (V)

1.7502.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

INPUT VOLTAGE (V)

FIGURE 14. OUTPUT VOLTAGE REGULATION vs VIN

(PWM VOUT = 1.8 )

FIGURE 15. OUTPUT VOLTAGE REGULATION vs VIN

(PFM VOUT = 1.8V)

LX 2V/DIV

VOUT RIPPLE 20mV/DIV

IL 0.5A/DIV

FIGURE 16. STEADY STATE OPERATION AT NO LOAD (PWM)

LX 2V/DIV

VOUT RIPPLE 20mV/DIV

IL 0.5A/DIV

FIGURE 17. STEADY STATE OPERATION AT NO LOAD (PFM)

LX 2V/DIV

IL 1A/DIV

VOUT RIPPLE 20mV/DIV

FIGURE 18. STEADY STATE OPERATION WITH FULL LOAD

LX 2V/DIV

VOUT RIPPLE 50mV/DIV

IL 1A/DIV

FIGURE 19. MODE TRANSITION CCM TO DCM

FN7526 Rev 2.00

November 17, 2014

Page 8 of 16

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