ISL8013A datasheet(9/17 Pages) INTERSIL

Teilenummer	ISL8013A

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

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Hersteller	INTERSIL [Intersil Corporation]

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FN7526.0

November 25, 2009

FIGURE 15. OUTPUT VOLTAGE REGULATION vs VIN

(PWM VOUT = 1.8 )

FIGURE 16. OUTPUT VOLTAGE REGULATION vs VIN

(PFM VOUT = 1.8V)

FIGURE 17. STEADY STATE OPERATION AT NO LOAD

(PWM)

FIGURE 18. STEADY STATE OPERATION AT NO LOAD

(PFM)

FIGURE 19. STEADY STATE OPERATION WITH FULL

LOAD

FIGURE 20. MODE TRANSITION CCM TO DCM

Typical Operating Performance Unless otherwise noted, operating conditions are: T

A = +25°C,

VVIN = 2.5V to 5.5V, EN = VIN, SYNCH = 0V, L = 1.5µH,

C1 = 2x22µF, C2 = 2x22µF, IOUT = 0A to 3A. (Continued)

1.750

1.760

1.770

1.780

1.790

1.800

1.810

1.820

1.830

2.02.5

3.0

3.5

4.04.5

5.05.5

INPUT VOLTAGE (V)

3A LOAD PWM

0A LOAD PWM

1.750

1.760

1.770

1.780

1.790

1.800

1.810

1.820

1.830

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

INPUT VOLTAGE (V)

3A LOAD

0A LOAD

LX 2V/DIV

VOUT RIPPLE 20mV/DIV

IL 0.5A/DIV

LX 2V/DIV

VOUT RIPPLE 20mV/DIV

IL 0.5A/DIV

LX 2V/DIV

VOUT RIPPLE 20mV/DIV

IL 1A/DIV

LX 2V/DIV

VOUT RIPPLE 50mV/DIV

IL 1A/DIV

ISL8013A

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