ISL8022IRZ datasheet(8/18 Pages) INTERSIL

Part #	ISL8022IRZ

Description	Dual 2A/1.7A Low Quiescent Current 2.25MHz High Efficiency Synchronous

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Manufacturer	INTERSIL [Intersil Corporation]

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ISL8022

8

FN7650.1

August 25, 2010

FIGURE 8. VOUT REGULATION vs LOAD, 2.25MHz, 1.5V

CHANNEL2

FIGURE 9. VOUT REGULATION vs LOAD, 2.25MHz, 2.5V

CHANNEL1

FIGURE 10. VOUT REGULATION vs LOAD, 2.25MHz,

1.8V, CHANNEL 2

FIGURE 11. OUTPUT VOLTAGE REGULATION vs VIN

2.5V CHANNEL 1

FIGURE 12. OUTPUT VOLTAGE REGULATION vs VIN 1.8V CHANNEL 2

Typical Operating Performance (Unless otherwise noted) operating conditions are:

TA =+25°C, VVIN = 2.8V to 5.5V, EN = VIN, L1 = L2 = 1.2µH, C1 = 10µF, C2 = C4 = 22µF, IOUT1 = 0A to 2A,

IOUT2 = 0A to 1.7A. (Continued)

1.48

1.49

1.50

1.51

1.52

1.53

1.54

0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0

OUTPUT LOAD (A)

5VIN PFM

3.3V VIN PWM

5VIN PWM

3.3V VIN PFM

2.47

2.48

2.49

2.50

2.51

2.52

2.53

0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0

OUTPUT LOAD (A)

5VIN PFM

3.3V VIN PWM

5VIN PWM

3.3V VIN PFM

1.77

1.78

1.79

1.80

1.81

1.82

1.83

0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0

OUTPUT LOAD (A)

5 VIN PFM

5VIN PWM

3.3V VIN PFM

3.3V VIN PWM

2.48

2.49

2.50

2.51

2.52

2.53

2.54

2.5 2.8 3.1 3.4 3.7 4.0 4.3 4.6 4.9 5.2 5.5

INPUT VOLTAGE (V)

1A LOAD

2A LOAD

0A LOAD PWM

0A LOAD PFM

1.77

1.78

1.79

1.80

1.81

1.82

1.83

2.5 2.8 3.1 3.4 3.7 4.0 4.3 4.6 4.9 5.2 5.5

INPUT VOLTAGE (V)

0.8A LOAD

1.7A LOAD

0A LOAD PWM

0A LOAD PFM

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