ISL8012IRZ datasheet(8/16 Pages) INTERSIL

Part #	ISL8012IRZ

Description	2A Low Quiescent Current 1MHz High Efficiency Synchronous Buck Regulator

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Manufacturer	INTERSIL [Intersil Corporation]

Direct Link	http://www.intersil.com/cda/home

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8

March 17, 2010

FN6616.1

FIGURE 9. POWER DISSIPATION WITH NO LOAD vs

VIN (PFM VOUT = 1.8V)

FIGURE 10. VOUT REGULATION vs LOAD (1MHz,

VOUT = 1.2V)

FIGURE 11. VOUT REGULATION vs LOAD (1MHz,

VOUT = 1.5V)

FIGURE 12. VOUT REGULATION vs LOAD (1MHz,

VOUT = 1.8V)

FIGURE 13. VOUT REGULATION vs LOAD (1MHz,

VOUT = 2.5V)

FIGURE 14. VOUT REGULATION vs LOAD (1MHz,

VOUT = 3.3V)

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

A = +25°C,

VVIN = 2.5V to 5.5V, EN = VIN, MODE = 0V, L = 2.2µH,

C1 = 2x10µF, C2 = 2x10µF, IOUT = 0A to 2A). (Continued)

0.10

0.15

0.20

0.25

0.30

0.35

0.40

0.45

0.50

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

6.0

VIN (V)

PFM

1.16

1.17

1.18

1.19

1.20

1.21

1.22

1.23

1.24

0.00

0.25

0.50

0.75

1.00

1.25

1.50

1.75

2.00

OUTPUT LOAD (A)

5VIN PFM

3.3VIN PFM

5VIN PWM

3.3VIN PWM

1.47

1.48

1.49

1.50

1.51

1.52

1.53

1.54

1.55

0.00

0.25

0.50

0.75

1.00

1.25

1.50

1.75

2.00

OUTPUT LOAD (A)

5VIN PFM

3.3VIN PFM

5VIN PWM

3.3VIN PWM

1.75

1.76

1.77

1.78

1.79

1.80

1.81

1.82

1.83

0.00

0.25

0.50

0.75

1.00

1.25

1.50

1.75

2.00

OUTPUT LOAD (A)

3.3VIN PFM

5VIN PWM

3.3VIN PWM

5VIN PFM

0.00

0.25

0.50

0.75

1.00

1.25

1.50

1.75

2.00

OUTPUT LOAD (A)

3.3VIN PFM

3.3VIN PWM

5VIN PWM

5VIN PFM

2.43

2.45

2.47

2.49

2.51

2.53

2.55

2.57

2.59

3.28

3.29

3.30

3.31

3.32

3.33

3.34

3.35

3.36

0.00

0.25

0.50

0.75

1.00

1.25

1.50

1.75

2.00

OUTPUT LOAD (A)

5VIN PWM

4.5VIN PWM

4.5VIN PFM

5VIN PFM

ISL8012

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